Add a storage layer for attachments (#11387)
* Add a storage layer for attachments * Fix some bug * fix test * Fix copyright head and lint * Fix bug * Add setting for minio and flags for migrate-storage * Add documents * fix lint * Add test for minio store type on attachments * fix test * fix test * Apply suggestions from code review Co-authored-by: guillep2k <18600385+guillep2k@users.noreply.github.com> * Add warning when storage migrated successfully * Fix drone * fix test * rebase * Fix test * display the error on console * Move minio test to amd64 since minio docker don't support arm64 * refactor the codes * add trace * Fix test * remove log on xorm * Fi download bug * Add a storage layer for attachments * Add setting for minio and flags for migrate-storage * fix lint * Add test for minio store type on attachments * Apply suggestions from code review Co-authored-by: guillep2k <18600385+guillep2k@users.noreply.github.com> * Fix drone * fix test * Fix test * display the error on console * Move minio test to amd64 since minio docker don't support arm64 * refactor the codes * add trace * Fix test * Add URL function to serve attachments directly from S3/Minio * Add ability to enable/disable redirection in attachment configuration * Fix typo * Add a storage layer for attachments * Add setting for minio and flags for migrate-storage * fix lint * Add test for minio store type on attachments * Apply suggestions from code review Co-authored-by: guillep2k <18600385+guillep2k@users.noreply.github.com> * Fix drone * fix test * Fix test * display the error on console * Move minio test to amd64 since minio docker don't support arm64 * don't change unrelated files * Fix lint * Fix build * update go.mod and go.sum * Use github.com/minio/minio-go/v6 * Remove unused function * Upgrade minio to v7 and some other improvements * fix lint * Fix go mod Co-authored-by: guillep2k <18600385+guillep2k@users.noreply.github.com> Co-authored-by: Tyler <tystuyfzand@gmail.com>tokarchuk/v1.17
Lunny Xiao
4 years ago
committed by
GitHub
parent
02fbe1e5dc
commit
62e6c9bc6c
@ -0,0 +1,147 @@ |
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// Copyright 2020 The Gitea Authors. All rights reserved.
|
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// Use of this source code is governed by a MIT-style
|
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// license that can be found in the LICENSE file.
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|
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package cmd |
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import ( |
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"context" |
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"fmt" |
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|
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"code.gitea.io/gitea/models" |
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"code.gitea.io/gitea/models/migrations" |
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"code.gitea.io/gitea/modules/log" |
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"code.gitea.io/gitea/modules/setting" |
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"code.gitea.io/gitea/modules/storage" |
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|
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"github.com/urfave/cli" |
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) |
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// CmdMigrateStorage represents the available migrate storage sub-command.
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var CmdMigrateStorage = cli.Command{ |
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Name: "migrate-storage", |
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Usage: "Migrate the storage", |
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Description: "This is a command for migrating storage.", |
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Action: runMigrateStorage, |
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Flags: []cli.Flag{ |
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cli.StringFlag{ |
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Name: "type, t", |
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Value: "", |
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Usage: "Kinds of files to migrate, currently only 'attachments' is supported", |
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}, |
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cli.StringFlag{ |
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Name: "store, s", |
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Value: "local", |
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Usage: "New storage type, local or minio", |
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}, |
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cli.StringFlag{ |
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Name: "path, p", |
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Value: "", |
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Usage: "New storage placement if store is local (leave blank for default)", |
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}, |
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cli.StringFlag{ |
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Name: "minio-endpoint", |
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Value: "", |
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Usage: "Minio storage endpoint", |
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}, |
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cli.StringFlag{ |
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Name: "minio-access-key-id", |
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Value: "", |
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Usage: "Minio storage accessKeyID", |
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}, |
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cli.StringFlag{ |
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Name: "minio-secret-access-key", |
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Value: "", |
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Usage: "Minio storage secretAccessKey", |
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}, |
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cli.StringFlag{ |
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Name: "minio-bucket", |
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Value: "", |
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Usage: "Minio storage bucket", |
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}, |
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cli.StringFlag{ |
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Name: "minio-location", |
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Value: "", |
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Usage: "Minio storage location to create bucket", |
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}, |
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cli.StringFlag{ |
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Name: "minio-base-path", |
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Value: "", |
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Usage: "Minio storage basepath on the bucket", |
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}, |
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cli.BoolFlag{ |
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Name: "minio-use-ssl", |
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Usage: "Enable SSL for minio", |
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}, |
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}, |
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} |
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|
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func migrateAttachments(dstStorage storage.ObjectStorage) error { |
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return models.IterateAttachment(func(attach *models.Attachment) error { |
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_, err := storage.Copy(dstStorage, attach.RelativePath(), storage.Attachments, attach.RelativePath()) |
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return err |
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}) |
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} |
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|
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func runMigrateStorage(ctx *cli.Context) error { |
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if err := initDB(); err != nil { |
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return err |
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} |
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log.Trace("AppPath: %s", setting.AppPath) |
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log.Trace("AppWorkPath: %s", setting.AppWorkPath) |
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log.Trace("Custom path: %s", setting.CustomPath) |
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log.Trace("Log path: %s", setting.LogRootPath) |
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setting.InitDBConfig() |
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|
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if err := models.NewEngine(context.Background(), migrations.Migrate); err != nil { |
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log.Fatal("Failed to initialize ORM engine: %v", err) |
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return err |
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} |
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|
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if err := storage.Init(); err != nil { |
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return err |
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} |
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tp := ctx.String("type") |
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switch tp { |
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case "attachments": |
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var dstStorage storage.ObjectStorage |
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var err error |
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switch ctx.String("store") { |
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case "local": |
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p := ctx.String("path") |
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if p == "" { |
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log.Fatal("Path must be given when store is loal") |
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return nil |
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} |
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dstStorage, err = storage.NewLocalStorage(p) |
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case "minio": |
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dstStorage, err = storage.NewMinioStorage( |
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context.Background(), |
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ctx.String("minio-endpoint"), |
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ctx.String("minio-access-key-id"), |
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ctx.String("minio-secret-access-key"), |
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ctx.String("minio-bucket"), |
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ctx.String("minio-location"), |
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ctx.String("minio-base-path"), |
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ctx.Bool("minio-use-ssl"), |
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) |
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default: |
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return fmt.Errorf("Unsupported attachments store type: %s", ctx.String("store")) |
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} |
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if err != nil { |
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return err |
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} |
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if err := migrateAttachments(dstStorage); err != nil { |
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return err |
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} |
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log.Warn("All files have been copied to the new placement but old files are still on the orignial placement.") |
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return nil |
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} |
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return nil |
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} |
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@ -0,0 +1,75 @@ |
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// Copyright 2020 The Gitea Authors. All rights reserved.
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// Use of this source code is governed by a MIT-style
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// license that can be found in the LICENSE file.
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package setting |
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import ( |
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"path" |
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"path/filepath" |
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"strings" |
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) |
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var ( |
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// Attachment settings
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Attachment = struct { |
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StoreType string |
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Path string |
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ServeDirect bool |
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Minio struct { |
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Endpoint string |
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AccessKeyID string |
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SecretAccessKey string |
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UseSSL bool |
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Bucket string |
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Location string |
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BasePath string |
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} |
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AllowedTypes string |
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MaxSize int64 |
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MaxFiles int |
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Enabled bool |
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}{ |
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StoreType: "local", |
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ServeDirect: false, |
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Minio: struct { |
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Endpoint string |
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AccessKeyID string |
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SecretAccessKey string |
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UseSSL bool |
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Bucket string |
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Location string |
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BasePath string |
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}{}, |
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AllowedTypes: "image/jpeg,image/png,application/zip,application/gzip", |
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MaxSize: 4, |
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MaxFiles: 5, |
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Enabled: true, |
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} |
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) |
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func newAttachmentService() { |
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sec := Cfg.Section("attachment") |
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Attachment.StoreType = sec.Key("STORE_TYPE").MustString("local") |
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Attachment.ServeDirect = sec.Key("SERVE_DIRECT").MustBool(false) |
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switch Attachment.StoreType { |
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case "local": |
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Attachment.Path = sec.Key("PATH").MustString(path.Join(AppDataPath, "attachments")) |
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if !filepath.IsAbs(Attachment.Path) { |
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Attachment.Path = path.Join(AppWorkPath, Attachment.Path) |
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} |
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case "minio": |
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Attachment.Minio.Endpoint = sec.Key("MINIO_ENDPOINT").MustString("localhost:9000") |
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Attachment.Minio.AccessKeyID = sec.Key("MINIO_ACCESS_KEY_ID").MustString("") |
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Attachment.Minio.SecretAccessKey = sec.Key("MINIO_SECRET_ACCESS_KEY").MustString("") |
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Attachment.Minio.Bucket = sec.Key("MINIO_BUCKET").MustString("gitea") |
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Attachment.Minio.Location = sec.Key("MINIO_LOCATION").MustString("us-east-1") |
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Attachment.Minio.BasePath = sec.Key("MINIO_BASE_PATH").MustString("attachments/") |
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Attachment.Minio.UseSSL = sec.Key("MINIO_USE_SSL").MustBool(false) |
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} |
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Attachment.AllowedTypes = strings.Replace(sec.Key("ALLOWED_TYPES").MustString("image/jpeg,image/png,application/zip,application/gzip"), "|", ",", -1) |
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Attachment.MaxSize = sec.Key("MAX_SIZE").MustInt64(4) |
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Attachment.MaxFiles = sec.Key("MAX_FILES").MustInt(5) |
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Attachment.Enabled = sec.Key("ENABLED").MustBool(true) |
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} |
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@ -0,0 +1,70 @@ |
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// Copyright 2020 The Gitea Authors. All rights reserved.
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// Use of this source code is governed by a MIT-style
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// license that can be found in the LICENSE file.
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package storage |
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import ( |
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"io" |
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"net/url" |
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"os" |
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"path/filepath" |
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"code.gitea.io/gitea/modules/util" |
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) |
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var ( |
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_ ObjectStorage = &LocalStorage{} |
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) |
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// LocalStorage represents a local files storage
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type LocalStorage struct { |
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dir string |
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} |
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// NewLocalStorage returns a local files
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func NewLocalStorage(bucket string) (*LocalStorage, error) { |
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if err := os.MkdirAll(bucket, os.ModePerm); err != nil { |
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return nil, err |
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} |
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return &LocalStorage{ |
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dir: bucket, |
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}, nil |
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} |
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// Open a file
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func (l *LocalStorage) Open(path string) (io.ReadCloser, error) { |
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return os.Open(filepath.Join(l.dir, path)) |
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} |
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// Save a file
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func (l *LocalStorage) Save(path string, r io.Reader) (int64, error) { |
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p := filepath.Join(l.dir, path) |
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if err := os.MkdirAll(filepath.Dir(p), os.ModePerm); err != nil { |
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return 0, err |
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} |
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// always override
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if err := util.Remove(p); err != nil { |
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return 0, err |
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} |
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f, err := os.Create(p) |
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if err != nil { |
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return 0, err |
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} |
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defer f.Close() |
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return io.Copy(f, r) |
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} |
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// Delete delete a file
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func (l *LocalStorage) Delete(path string) error { |
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p := filepath.Join(l.dir, path) |
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return util.Remove(p) |
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} |
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// URL gets the redirect URL to a file
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func (l *LocalStorage) URL(path, name string) (*url.URL, error) { |
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return nil, ErrURLNotSupported |
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} |
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@ -0,0 +1,101 @@ |
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// Copyright 2020 The Gitea Authors. All rights reserved.
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// Use of this source code is governed by a MIT-style
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// license that can be found in the LICENSE file.
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package storage |
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import ( |
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"context" |
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"io" |
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"net/url" |
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"path" |
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"strings" |
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"time" |
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|
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"github.com/minio/minio-go/v7" |
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"github.com/minio/minio-go/v7/pkg/credentials" |
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) |
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var ( |
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_ ObjectStorage = &MinioStorage{} |
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quoteEscaper = strings.NewReplacer("\\", "\\\\", `"`, "\\\"") |
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) |
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// MinioStorage returns a minio bucket storage
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type MinioStorage struct { |
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ctx context.Context |
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client *minio.Client |
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bucket string |
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basePath string |
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} |
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|
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// NewMinioStorage returns a minio storage
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func NewMinioStorage(ctx context.Context, endpoint, accessKeyID, secretAccessKey, bucket, location, basePath string, useSSL bool) (*MinioStorage, error) { |
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minioClient, err := minio.New(endpoint, &minio.Options{ |
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Creds: credentials.NewStaticV4(accessKeyID, secretAccessKey, ""), |
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Secure: useSSL, |
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}) |
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if err != nil { |
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return nil, err |
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} |
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|
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if err := minioClient.MakeBucket(ctx, bucket, minio.MakeBucketOptions{ |
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Region: location, |
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}); err != nil { |
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// Check to see if we already own this bucket (which happens if you run this twice)
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exists, errBucketExists := minioClient.BucketExists(ctx, bucket) |
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if !exists || errBucketExists != nil { |
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return nil, err |
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} |
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} |
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|
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return &MinioStorage{ |
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ctx: ctx, |
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client: minioClient, |
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bucket: bucket, |
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basePath: basePath, |
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}, nil |
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} |
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|
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func (m *MinioStorage) buildMinioPath(p string) string { |
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return strings.TrimPrefix(path.Join(m.basePath, p), "/") |
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} |
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|
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// Open open a file
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func (m *MinioStorage) Open(path string) (io.ReadCloser, error) { |
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var opts = minio.GetObjectOptions{} |
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object, err := m.client.GetObject(m.ctx, m.bucket, m.buildMinioPath(path), opts) |
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if err != nil { |
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return nil, err |
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} |
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return object, nil |
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} |
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|
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// Save save a file to minio
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func (m *MinioStorage) Save(path string, r io.Reader) (int64, error) { |
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uploadInfo, err := m.client.PutObject( |
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m.ctx, |
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m.bucket, |
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m.buildMinioPath(path), |
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r, |
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-1, |
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minio.PutObjectOptions{ContentType: "application/octet-stream"}, |
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) |
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if err != nil { |
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return 0, err |
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} |
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return uploadInfo.Size, nil |
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} |
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|
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// Delete delete a file
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func (m *MinioStorage) Delete(path string) error { |
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return m.client.RemoveObject(m.ctx, m.bucket, m.buildMinioPath(path), minio.RemoveObjectOptions{}) |
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} |
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|
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// URL gets the redirect URL to a file. The presigned link is valid for 5 minutes.
|
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func (m *MinioStorage) URL(path, name string) (*url.URL, error) { |
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reqParams := make(url.Values) |
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// TODO it may be good to embed images with 'inline' like ServeData does, but we don't want to have to read the file, do we?
|
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reqParams.Set("response-content-disposition", "attachment; filename=\""+quoteEscaper.Replace(name)+"\"") |
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return m.client.PresignedGetObject(m.ctx, m.bucket, m.buildMinioPath(path), 5*time.Minute, reqParams) |
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} |
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@ -0,0 +1,73 @@ |
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// Copyright 2020 The Gitea Authors. All rights reserved.
|
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// Use of this source code is governed by a MIT-style
|
||||
// license that can be found in the LICENSE file.
|
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|
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package storage |
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|
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import ( |
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"context" |
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"errors" |
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"fmt" |
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"io" |
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"net/url" |
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|
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"code.gitea.io/gitea/modules/setting" |
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) |
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|
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var ( |
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// ErrURLNotSupported represents url is not supported
|
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ErrURLNotSupported = errors.New("url method not supported") |
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) |
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|
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// ObjectStorage represents an object storage to handle a bucket and files
|
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type ObjectStorage interface { |
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Save(path string, r io.Reader) (int64, error) |
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Open(path string) (io.ReadCloser, error) |
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Delete(path string) error |
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URL(path, name string) (*url.URL, error) |
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} |
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|
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// Copy copys a file from source ObjectStorage to dest ObjectStorage
|
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func Copy(dstStorage ObjectStorage, dstPath string, srcStorage ObjectStorage, srcPath string) (int64, error) { |
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f, err := srcStorage.Open(srcPath) |
||||
if err != nil { |
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return 0, err |
||||
} |
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defer f.Close() |
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|
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return dstStorage.Save(dstPath, f) |
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} |
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|
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var ( |
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// Attachments represents attachments storage
|
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Attachments ObjectStorage |
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) |
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|
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// Init init the stoarge
|
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func Init() error { |
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var err error |
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switch setting.Attachment.StoreType { |
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case "local": |
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Attachments, err = NewLocalStorage(setting.Attachment.Path) |
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case "minio": |
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minio := setting.Attachment.Minio |
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Attachments, err = NewMinioStorage( |
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context.Background(), |
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minio.Endpoint, |
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minio.AccessKeyID, |
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minio.SecretAccessKey, |
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minio.Bucket, |
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minio.Location, |
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minio.BasePath, |
||||
minio.UseSSL, |
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) |
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default: |
||||
return fmt.Errorf("Unsupported attachment store type: %s", setting.Attachment.StoreType) |
||||
} |
||||
|
||||
if err != nil { |
||||
return err |
||||
} |
||||
|
||||
return nil |
||||
} |
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@ -0,0 +1,3 @@ |
||||
ignore: |
||||
- "output_tests/.*" |
||||
|
||||
@ -0,0 +1,4 @@ |
||||
/vendor |
||||
/bug_test.go |
||||
/coverage.txt |
||||
/.idea |
||||
@ -0,0 +1,14 @@ |
||||
language: go |
||||
|
||||
go: |
||||
- 1.8.x |
||||
- 1.x |
||||
|
||||
before_install: |
||||
- go get -t -v ./... |
||||
|
||||
script: |
||||
- ./test.sh |
||||
|
||||
after_success: |
||||
- bash <(curl -s https://codecov.io/bash) |
||||
@ -0,0 +1,21 @@ |
||||
# This file is autogenerated, do not edit; changes may be undone by the next 'dep ensure'. |
||||
|
||||
|
||||
[[projects]] |
||||
name = "github.com/modern-go/concurrent" |
||||
packages = ["."] |
||||
revision = "e0a39a4cb4216ea8db28e22a69f4ec25610d513a" |
||||
version = "1.0.0" |
||||
|
||||
[[projects]] |
||||
name = "github.com/modern-go/reflect2" |
||||
packages = ["."] |
||||
revision = "4b7aa43c6742a2c18fdef89dd197aaae7dac7ccd" |
||||
version = "1.0.1" |
||||
|
||||
[solve-meta] |
||||
analyzer-name = "dep" |
||||
analyzer-version = 1 |
||||
inputs-digest = "ea54a775e5a354cb015502d2e7aa4b74230fc77e894f34a838b268c25ec8eeb8" |
||||
solver-name = "gps-cdcl" |
||||
solver-version = 1 |
||||
@ -0,0 +1,26 @@ |
||||
# Gopkg.toml example |
||||
# |
||||
# Refer to https://github.com/golang/dep/blob/master/docs/Gopkg.toml.md |
||||
# for detailed Gopkg.toml documentation. |
||||
# |
||||
# required = ["github.com/user/thing/cmd/thing"] |
||||
# ignored = ["github.com/user/project/pkgX", "bitbucket.org/user/project/pkgA/pkgY"] |
||||
# |
||||
# [[constraint]] |
||||
# name = "github.com/user/project" |
||||
# version = "1.0.0" |
||||
# |
||||
# [[constraint]] |
||||
# name = "github.com/user/project2" |
||||
# branch = "dev" |
||||
# source = "github.com/myfork/project2" |
||||
# |
||||
# [[override]] |
||||
# name = "github.com/x/y" |
||||
# version = "2.4.0" |
||||
|
||||
ignored = ["github.com/davecgh/go-spew*","github.com/google/gofuzz*","github.com/stretchr/testify*"] |
||||
|
||||
[[constraint]] |
||||
name = "github.com/modern-go/reflect2" |
||||
version = "1.0.1" |
||||
@ -0,0 +1,21 @@ |
||||
MIT License |
||||
|
||||
Copyright (c) 2016 json-iterator |
||||
|
||||
Permission is hereby granted, free of charge, to any person obtaining a copy |
||||
of this software and associated documentation files (the "Software"), to deal |
||||
in the Software without restriction, including without limitation the rights |
||||
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
||||
copies of the Software, and to permit persons to whom the Software is |
||||
furnished to do so, subject to the following conditions: |
||||
|
||||
The above copyright notice and this permission notice shall be included in all |
||||
copies or substantial portions of the Software. |
||||
|
||||
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
||||
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
||||
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
||||
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
||||
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
||||
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
||||
SOFTWARE. |
||||
@ -0,0 +1,87 @@ |
||||
[](https://sourcegraph.com/github.com/json-iterator/go?badge) |
||||
[](https://pkg.go.dev/github.com/json-iterator/go) |
||||
[](https://travis-ci.org/json-iterator/go) |
||||
[](https://codecov.io/gh/json-iterator/go) |
||||
[](https://goreportcard.com/report/github.com/json-iterator/go) |
||||
[](https://raw.githubusercontent.com/json-iterator/go/master/LICENSE) |
||||
[](https://gitter.im/json-iterator/Lobby) |
||||
|
||||
A high-performance 100% compatible drop-in replacement of "encoding/json" |
||||
|
||||
You can also use thrift like JSON using [thrift-iterator](https://github.com/thrift-iterator/go) |
||||
|
||||
# Benchmark |
||||
|
||||
 |
||||
|
||||
Source code: https://github.com/json-iterator/go-benchmark/blob/master/src/github.com/json-iterator/go-benchmark/benchmark_medium_payload_test.go |
||||
|
||||
Raw Result (easyjson requires static code generation) |
||||
|
||||
| | ns/op | allocation bytes | allocation times | |
||||
| --------------- | ----------- | ---------------- | ---------------- | |
||||
| std decode | 35510 ns/op | 1960 B/op | 99 allocs/op | |
||||
| easyjson decode | 8499 ns/op | 160 B/op | 4 allocs/op | |
||||
| jsoniter decode | 5623 ns/op | 160 B/op | 3 allocs/op | |
||||
| std encode | 2213 ns/op | 712 B/op | 5 allocs/op | |
||||
| easyjson encode | 883 ns/op | 576 B/op | 3 allocs/op | |
||||
| jsoniter encode | 837 ns/op | 384 B/op | 4 allocs/op | |
||||
|
||||
Always benchmark with your own workload. |
||||
The result depends heavily on the data input. |
||||
|
||||
# Usage |
||||
|
||||
100% compatibility with standard lib |
||||
|
||||
Replace |
||||
|
||||
```go |
||||
import "encoding/json" |
||||
json.Marshal(&data) |
||||
``` |
||||
|
||||
with |
||||
|
||||
```go |
||||
import jsoniter "github.com/json-iterator/go" |
||||
|
||||
var json = jsoniter.ConfigCompatibleWithStandardLibrary |
||||
json.Marshal(&data) |
||||
``` |
||||
|
||||
Replace |
||||
|
||||
```go |
||||
import "encoding/json" |
||||
json.Unmarshal(input, &data) |
||||
``` |
||||
|
||||
with |
||||
|
||||
```go |
||||
import jsoniter "github.com/json-iterator/go" |
||||
|
||||
var json = jsoniter.ConfigCompatibleWithStandardLibrary |
||||
json.Unmarshal(input, &data) |
||||
``` |
||||
|
||||
[More documentation](http://jsoniter.com/migrate-from-go-std.html) |
||||
|
||||
# How to get |
||||
|
||||
``` |
||||
go get github.com/json-iterator/go |
||||
``` |
||||
|
||||
# Contribution Welcomed ! |
||||
|
||||
Contributors |
||||
|
||||
- [thockin](https://github.com/thockin) |
||||
- [mattn](https://github.com/mattn) |
||||
- [cch123](https://github.com/cch123) |
||||
- [Oleg Shaldybin](https://github.com/olegshaldybin) |
||||
- [Jason Toffaletti](https://github.com/toffaletti) |
||||
|
||||
Report issue or pull request, or email taowen@gmail.com, or [](https://gitter.im/json-iterator/Lobby) |
||||
@ -0,0 +1,150 @@ |
||||
package jsoniter |
||||
|
||||
import ( |
||||
"bytes" |
||||
"io" |
||||
) |
||||
|
||||
// RawMessage to make replace json with jsoniter
|
||||
type RawMessage []byte |
||||
|
||||
// Unmarshal adapts to json/encoding Unmarshal API
|
||||
//
|
||||
// Unmarshal parses the JSON-encoded data and stores the result in the value pointed to by v.
|
||||
// Refer to https://godoc.org/encoding/json#Unmarshal for more information
|
||||
func Unmarshal(data []byte, v interface{}) error { |
||||
return ConfigDefault.Unmarshal(data, v) |
||||
} |
||||
|
||||
// UnmarshalFromString is a convenient method to read from string instead of []byte
|
||||
func UnmarshalFromString(str string, v interface{}) error { |
||||
return ConfigDefault.UnmarshalFromString(str, v) |
||||
} |
||||
|
||||
// Get quick method to get value from deeply nested JSON structure
|
||||
func Get(data []byte, path ...interface{}) Any { |
||||
return ConfigDefault.Get(data, path...) |
||||
} |
||||
|
||||
// Marshal adapts to json/encoding Marshal API
|
||||
//
|
||||
// Marshal returns the JSON encoding of v, adapts to json/encoding Marshal API
|
||||
// Refer to https://godoc.org/encoding/json#Marshal for more information
|
||||
func Marshal(v interface{}) ([]byte, error) { |
||||
return ConfigDefault.Marshal(v) |
||||
} |
||||
|
||||
// MarshalIndent same as json.MarshalIndent. Prefix is not supported.
|
||||
func MarshalIndent(v interface{}, prefix, indent string) ([]byte, error) { |
||||
return ConfigDefault.MarshalIndent(v, prefix, indent) |
||||
} |
||||
|
||||
// MarshalToString convenient method to write as string instead of []byte
|
||||
func MarshalToString(v interface{}) (string, error) { |
||||
return ConfigDefault.MarshalToString(v) |
||||
} |
||||
|
||||
// NewDecoder adapts to json/stream NewDecoder API.
|
||||
//
|
||||
// NewDecoder returns a new decoder that reads from r.
|
||||
//
|
||||
// Instead of a json/encoding Decoder, an Decoder is returned
|
||||
// Refer to https://godoc.org/encoding/json#NewDecoder for more information
|
||||
func NewDecoder(reader io.Reader) *Decoder { |
||||
return ConfigDefault.NewDecoder(reader) |
||||
} |
||||
|
||||
// Decoder reads and decodes JSON values from an input stream.
|
||||
// Decoder provides identical APIs with json/stream Decoder (Token() and UseNumber() are in progress)
|
||||
type Decoder struct { |
||||
iter *Iterator |
||||
} |
||||
|
||||
// Decode decode JSON into interface{}
|
||||
func (adapter *Decoder) Decode(obj interface{}) error { |
||||
if adapter.iter.head == adapter.iter.tail && adapter.iter.reader != nil { |
||||
if !adapter.iter.loadMore() { |
||||
return io.EOF |
||||
} |
||||
} |
||||
adapter.iter.ReadVal(obj) |
||||
err := adapter.iter.Error |
||||
if err == io.EOF { |
||||
return nil |
||||
} |
||||
return adapter.iter.Error |
||||
} |
||||
|
||||
// More is there more?
|
||||
func (adapter *Decoder) More() bool { |
||||
iter := adapter.iter |
||||
if iter.Error != nil { |
||||
return false |
||||
} |
||||
c := iter.nextToken() |
||||
if c == 0 { |
||||
return false |
||||
} |
||||
iter.unreadByte() |
||||
return c != ']' && c != '}' |
||||
} |
||||
|
||||
// Buffered remaining buffer
|
||||
func (adapter *Decoder) Buffered() io.Reader { |
||||
remaining := adapter.iter.buf[adapter.iter.head:adapter.iter.tail] |
||||
return bytes.NewReader(remaining) |
||||
} |
||||
|
||||
// UseNumber causes the Decoder to unmarshal a number into an interface{} as a
|
||||
// Number instead of as a float64.
|
||||
func (adapter *Decoder) UseNumber() { |
||||
cfg := adapter.iter.cfg.configBeforeFrozen |
||||
cfg.UseNumber = true |
||||
adapter.iter.cfg = cfg.frozeWithCacheReuse(adapter.iter.cfg.extraExtensions) |
||||
} |
||||
|
||||
// DisallowUnknownFields causes the Decoder to return an error when the destination
|
||||
// is a struct and the input contains object keys which do not match any
|
||||
// non-ignored, exported fields in the destination.
|
||||
func (adapter *Decoder) DisallowUnknownFields() { |
||||
cfg := adapter.iter.cfg.configBeforeFrozen |
||||
cfg.DisallowUnknownFields = true |
||||
adapter.iter.cfg = cfg.frozeWithCacheReuse(adapter.iter.cfg.extraExtensions) |
||||
} |
||||
|
||||
// NewEncoder same as json.NewEncoder
|
||||
func NewEncoder(writer io.Writer) *Encoder { |
||||
return ConfigDefault.NewEncoder(writer) |
||||
} |
||||
|
||||
// Encoder same as json.Encoder
|
||||
type Encoder struct { |
||||
stream *Stream |
||||
} |
||||
|
||||
// Encode encode interface{} as JSON to io.Writer
|
||||
func (adapter *Encoder) Encode(val interface{}) error { |
||||
adapter.stream.WriteVal(val) |
||||
adapter.stream.WriteRaw("\n") |
||||
adapter.stream.Flush() |
||||
return adapter.stream.Error |
||||
} |
||||
|
||||
// SetIndent set the indention. Prefix is not supported
|
||||
func (adapter *Encoder) SetIndent(prefix, indent string) { |
||||
config := adapter.stream.cfg.configBeforeFrozen |
||||
config.IndentionStep = len(indent) |
||||
adapter.stream.cfg = config.frozeWithCacheReuse(adapter.stream.cfg.extraExtensions) |
||||
} |
||||
|
||||
// SetEscapeHTML escape html by default, set to false to disable
|
||||
func (adapter *Encoder) SetEscapeHTML(escapeHTML bool) { |
||||
config := adapter.stream.cfg.configBeforeFrozen |
||||
config.EscapeHTML = escapeHTML |
||||
adapter.stream.cfg = config.frozeWithCacheReuse(adapter.stream.cfg.extraExtensions) |
||||
} |
||||
|
||||
// Valid reports whether data is a valid JSON encoding.
|
||||
func Valid(data []byte) bool { |
||||
return ConfigDefault.Valid(data) |
||||
} |
||||
@ -0,0 +1,325 @@ |
||||
package jsoniter |
||||
|
||||
import ( |
||||
"errors" |
||||
"fmt" |
||||
"github.com/modern-go/reflect2" |
||||
"io" |
||||
"reflect" |
||||
"strconv" |
||||
"unsafe" |
||||
) |
||||
|
||||
// Any generic object representation.
|
||||
// The lazy json implementation holds []byte and parse lazily.
|
||||
type Any interface { |
||||
LastError() error |
||||
ValueType() ValueType |
||||
MustBeValid() Any |
||||
ToBool() bool |
||||
ToInt() int |
||||
ToInt32() int32 |
||||
ToInt64() int64 |
||||
ToUint() uint |
||||
ToUint32() uint32 |
||||
ToUint64() uint64 |
||||
ToFloat32() float32 |
||||
ToFloat64() float64 |
||||
ToString() string |
||||
ToVal(val interface{}) |
||||
Get(path ...interface{}) Any |
||||
Size() int |
||||
Keys() []string |
||||
GetInterface() interface{} |
||||
WriteTo(stream *Stream) |
||||
} |
||||
|
||||
type baseAny struct{} |
||||
|
||||
func (any *baseAny) Get(path ...interface{}) Any { |
||||
return &invalidAny{baseAny{}, fmt.Errorf("GetIndex %v from simple value", path)} |
||||
} |
||||
|
||||
func (any *baseAny) Size() int { |
||||
return 0 |
||||
} |
||||
|
||||
func (any *baseAny) Keys() []string { |
||||
return []string{} |
||||
} |
||||
|
||||
func (any *baseAny) ToVal(obj interface{}) { |
||||
panic("not implemented") |
||||
} |
||||
|
||||
// WrapInt32 turn int32 into Any interface
|
||||
func WrapInt32(val int32) Any { |
||||
return &int32Any{baseAny{}, val} |
||||
} |
||||
|
||||
// WrapInt64 turn int64 into Any interface
|
||||
func WrapInt64(val int64) Any { |
||||
return &int64Any{baseAny{}, val} |
||||
} |
||||
|
||||
// WrapUint32 turn uint32 into Any interface
|
||||
func WrapUint32(val uint32) Any { |
||||
return &uint32Any{baseAny{}, val} |
||||
} |
||||
|
||||
// WrapUint64 turn uint64 into Any interface
|
||||
func WrapUint64(val uint64) Any { |
||||
return &uint64Any{baseAny{}, val} |
||||
} |
||||
|
||||
// WrapFloat64 turn float64 into Any interface
|
||||
func WrapFloat64(val float64) Any { |
||||
return &floatAny{baseAny{}, val} |
||||
} |
||||
|
||||
// WrapString turn string into Any interface
|
||||
func WrapString(val string) Any { |
||||
return &stringAny{baseAny{}, val} |
||||
} |
||||
|
||||
// Wrap turn a go object into Any interface
|
||||
func Wrap(val interface{}) Any { |
||||
if val == nil { |
||||
return &nilAny{} |
||||
} |
||||
asAny, isAny := val.(Any) |
||||
if isAny { |
||||
return asAny |
||||
} |
||||
typ := reflect2.TypeOf(val) |
||||
switch typ.Kind() { |
||||
case reflect.Slice: |
||||
return wrapArray(val) |
||||
case reflect.Struct: |
||||
return wrapStruct(val) |
||||
case reflect.Map: |
||||
return wrapMap(val) |
||||
case reflect.String: |
||||
return WrapString(val.(string)) |
||||
case reflect.Int: |
||||
if strconv.IntSize == 32 { |
||||
return WrapInt32(int32(val.(int))) |
||||
} |
||||
return WrapInt64(int64(val.(int))) |
||||
case reflect.Int8: |
||||
return WrapInt32(int32(val.(int8))) |
||||
case reflect.Int16: |
||||
return WrapInt32(int32(val.(int16))) |
||||
case reflect.Int32: |
||||
return WrapInt32(val.(int32)) |
||||
case reflect.Int64: |
||||
return WrapInt64(val.(int64)) |
||||
case reflect.Uint: |
||||
if strconv.IntSize == 32 { |
||||
return WrapUint32(uint32(val.(uint))) |
||||
} |
||||
return WrapUint64(uint64(val.(uint))) |
||||
case reflect.Uintptr: |
||||
if ptrSize == 32 { |
||||
return WrapUint32(uint32(val.(uintptr))) |
||||
} |
||||
return WrapUint64(uint64(val.(uintptr))) |
||||
case reflect.Uint8: |
||||
return WrapUint32(uint32(val.(uint8))) |
||||
case reflect.Uint16: |
||||
return WrapUint32(uint32(val.(uint16))) |
||||
case reflect.Uint32: |
||||
return WrapUint32(uint32(val.(uint32))) |
||||
case reflect.Uint64: |
||||
return WrapUint64(val.(uint64)) |
||||
case reflect.Float32: |
||||
return WrapFloat64(float64(val.(float32))) |
||||
case reflect.Float64: |
||||
return WrapFloat64(val.(float64)) |
||||
case reflect.Bool: |
||||
if val.(bool) == true { |
||||
return &trueAny{} |
||||
} |
||||
return &falseAny{} |
||||
} |
||||
return &invalidAny{baseAny{}, fmt.Errorf("unsupported type: %v", typ)} |
||||
} |
||||
|
||||
// ReadAny read next JSON element as an Any object. It is a better json.RawMessage.
|
||||
func (iter *Iterator) ReadAny() Any { |
||||
return iter.readAny() |
||||
} |
||||
|
||||
func (iter *Iterator) readAny() Any { |
||||
c := iter.nextToken() |
||||
switch c { |
||||
case '"': |
||||
iter.unreadByte() |
||||
return &stringAny{baseAny{}, iter.ReadString()} |
||||
case 'n': |
||||
iter.skipThreeBytes('u', 'l', 'l') // null
|
||||
return &nilAny{} |
||||
case 't': |
||||
iter.skipThreeBytes('r', 'u', 'e') // true
|
||||
return &trueAny{} |
||||
case 'f': |
||||
iter.skipFourBytes('a', 'l', 's', 'e') // false
|
||||
return &falseAny{} |
||||
case '{': |
||||
return iter.readObjectAny() |
||||
case '[': |
||||
return iter.readArrayAny() |
||||
case '-': |
||||
return iter.readNumberAny(false) |
||||
case 0: |
||||
return &invalidAny{baseAny{}, errors.New("input is empty")} |
||||
default: |
||||
return iter.readNumberAny(true) |
||||
} |
||||
} |
||||
|
||||
func (iter *Iterator) readNumberAny(positive bool) Any { |
||||
iter.startCapture(iter.head - 1) |
||||
iter.skipNumber() |
||||
lazyBuf := iter.stopCapture() |
||||
return &numberLazyAny{baseAny{}, iter.cfg, lazyBuf, nil} |
||||
} |
||||
|
||||
func (iter *Iterator) readObjectAny() Any { |
||||
iter.startCapture(iter.head - 1) |
||||
iter.skipObject() |
||||
lazyBuf := iter.stopCapture() |
||||
return &objectLazyAny{baseAny{}, iter.cfg, lazyBuf, nil} |
||||
} |
||||
|
||||
func (iter *Iterator) readArrayAny() Any { |
||||
iter.startCapture(iter.head - 1) |
||||
iter.skipArray() |
||||
lazyBuf := iter.stopCapture() |
||||
return &arrayLazyAny{baseAny{}, iter.cfg, lazyBuf, nil} |
||||
} |
||||
|
||||
func locateObjectField(iter *Iterator, target string) []byte { |
||||
var found []byte |
||||
iter.ReadObjectCB(func(iter *Iterator, field string) bool { |
||||
if field == target { |
||||
found = iter.SkipAndReturnBytes() |
||||
return false |
||||
} |
||||
iter.Skip() |
||||
return true |
||||
}) |
||||
return found |
||||
} |
||||
|
||||
func locateArrayElement(iter *Iterator, target int) []byte { |
||||
var found []byte |
||||
n := 0 |
||||
iter.ReadArrayCB(func(iter *Iterator) bool { |
||||
if n == target { |
||||
found = iter.SkipAndReturnBytes() |
||||
return false |
||||
} |
||||
iter.Skip() |
||||
n++ |
||||
return true |
||||
}) |
||||
return found |
||||
} |
||||
|
||||
func locatePath(iter *Iterator, path []interface{}) Any { |
||||
for i, pathKeyObj := range path { |
||||
switch pathKey := pathKeyObj.(type) { |
||||
case string: |
||||
valueBytes := locateObjectField(iter, pathKey) |
||||
if valueBytes == nil { |
||||
return newInvalidAny(path[i:]) |
||||
} |
||||
iter.ResetBytes(valueBytes) |
||||
case int: |
||||
valueBytes := locateArrayElement(iter, pathKey) |
||||
if valueBytes == nil { |
||||
return newInvalidAny(path[i:]) |
||||
} |
||||
iter.ResetBytes(valueBytes) |
||||
case int32: |
||||
if '*' == pathKey { |
||||
return iter.readAny().Get(path[i:]...) |
||||
} |
||||
return newInvalidAny(path[i:]) |
||||
default: |
||||
return newInvalidAny(path[i:]) |
||||
} |
||||
} |
||||
if iter.Error != nil && iter.Error != io.EOF { |
||||
return &invalidAny{baseAny{}, iter.Error} |
||||
} |
||||
return iter.readAny() |
||||
} |
||||
|
||||
var anyType = reflect2.TypeOfPtr((*Any)(nil)).Elem() |
||||
|
||||
func createDecoderOfAny(ctx *ctx, typ reflect2.Type) ValDecoder { |
||||
if typ == anyType { |
||||
return &directAnyCodec{} |
||||
} |
||||
if typ.Implements(anyType) { |
||||
return &anyCodec{ |
||||
valType: typ, |
||||
} |
||||
} |
||||
return nil |
||||
} |
||||
|
||||
func createEncoderOfAny(ctx *ctx, typ reflect2.Type) ValEncoder { |
||||
if typ == anyType { |
||||
return &directAnyCodec{} |
||||
} |
||||
if typ.Implements(anyType) { |
||||
return &anyCodec{ |
||||
valType: typ, |
||||
} |
||||
} |
||||
return nil |
||||
} |
||||
|
||||
type anyCodec struct { |
||||
valType reflect2.Type |
||||
} |
||||
|
||||
func (codec *anyCodec) Decode(ptr unsafe.Pointer, iter *Iterator) { |
||||
panic("not implemented") |
||||
} |
||||
|
||||
func (codec *anyCodec) Encode(ptr unsafe.Pointer, stream *Stream) { |
||||
obj := codec.valType.UnsafeIndirect(ptr) |
||||
any := obj.(Any) |
||||
any.WriteTo(stream) |
||||
} |
||||
|
||||
func (codec *anyCodec) IsEmpty(ptr unsafe.Pointer) bool { |
||||
obj := codec.valType.UnsafeIndirect(ptr) |
||||
any := obj.(Any) |
||||
return any.Size() == 0 |
||||
} |
||||
|
||||
type directAnyCodec struct { |
||||
} |
||||
|
||||
func (codec *directAnyCodec) Decode(ptr unsafe.Pointer, iter *Iterator) { |
||||
*(*Any)(ptr) = iter.readAny() |
||||
} |
||||
|
||||
func (codec *directAnyCodec) Encode(ptr unsafe.Pointer, stream *Stream) { |
||||
any := *(*Any)(ptr) |
||||
if any == nil { |
||||
stream.WriteNil() |
||||
return |
||||
} |
||||
any.WriteTo(stream) |
||||
} |
||||
|
||||
func (codec *directAnyCodec) IsEmpty(ptr unsafe.Pointer) bool { |
||||
any := *(*Any)(ptr) |
||||
return any.Size() == 0 |
||||
} |
||||
@ -0,0 +1,278 @@ |
||||
package jsoniter |
||||
|
||||
import ( |
||||
"reflect" |
||||
"unsafe" |
||||
) |
||||
|
||||
type arrayLazyAny struct { |
||||
baseAny |
||||
cfg *frozenConfig |
||||
buf []byte |
||||
err error |
||||
} |
||||
|
||||
func (any *arrayLazyAny) ValueType() ValueType { |
||||
return ArrayValue |
||||
} |
||||
|
||||
func (any *arrayLazyAny) MustBeValid() Any { |
||||
return any |
||||
} |
||||
|
||||
func (any *arrayLazyAny) LastError() error { |
||||
return any.err |
||||
} |
||||
|
||||
func (any *arrayLazyAny) ToBool() bool { |
||||
iter := any.cfg.BorrowIterator(any.buf) |
||||
defer any.cfg.ReturnIterator(iter) |
||||
return iter.ReadArray() |
||||
} |
||||
|
||||
func (any *arrayLazyAny) ToInt() int { |
||||
if any.ToBool() { |
||||
return 1 |
||||
} |
||||
return 0 |
||||
} |
||||
|
||||
func (any *arrayLazyAny) ToInt32() int32 { |
||||
if any.ToBool() { |
||||
return 1 |
||||
} |
||||
return 0 |
||||
} |
||||
|
||||
func (any *arrayLazyAny) ToInt64() int64 { |
||||
if any.ToBool() { |
||||
return 1 |
||||
} |
||||
return 0 |
||||
} |
||||
|
||||
func (any *arrayLazyAny) ToUint() uint { |
||||
if any.ToBool() { |
||||
return 1 |
||||
} |
||||
return 0 |
||||
} |
||||
|
||||
func (any *arrayLazyAny) ToUint32() uint32 { |
||||
if any.ToBool() { |
||||
return 1 |
||||
} |
||||
return 0 |
||||
} |
||||
|
||||
func (any *arrayLazyAny) ToUint64() uint64 { |
||||
if any.ToBool() { |
||||
return 1 |
||||
} |
||||
return 0 |
||||
} |
||||
|
||||
func (any *arrayLazyAny) ToFloat32() float32 { |
||||
if any.ToBool() { |
||||
return 1 |
||||
} |
||||
return 0 |
||||
} |
||||
|
||||
func (any *arrayLazyAny) ToFloat64() float64 { |
||||
if any.ToBool() { |
||||
return 1 |
||||
} |
||||
return 0 |
||||
} |
||||
|
||||
func (any *arrayLazyAny) ToString() string { |
||||
return *(*string)(unsafe.Pointer(&any.buf)) |
||||
} |
||||
|
||||
func (any *arrayLazyAny) ToVal(val interface{}) { |
||||
iter := any.cfg.BorrowIterator(any.buf) |
||||
defer any.cfg.ReturnIterator(iter) |
||||
iter.ReadVal(val) |
||||
} |
||||
|
||||
func (any *arrayLazyAny) Get(path ...interface{}) Any { |
||||
if len(path) == 0 { |
||||
return any |
||||
} |
||||
switch firstPath := path[0].(type) { |
||||
case int: |
||||
iter := any.cfg.BorrowIterator(any.buf) |
||||
defer any.cfg.ReturnIterator(iter) |
||||
valueBytes := locateArrayElement(iter, firstPath) |
||||
if valueBytes == nil { |
||||
return newInvalidAny(path) |
||||
} |
||||
iter.ResetBytes(valueBytes) |
||||
return locatePath(iter, path[1:]) |
||||
case int32: |
||||
if '*' == firstPath { |
||||
iter := any.cfg.BorrowIterator(any.buf) |
||||
defer any.cfg.ReturnIterator(iter) |
||||
arr := make([]Any, 0) |
||||
iter.ReadArrayCB(func(iter *Iterator) bool { |
||||
found := iter.readAny().Get(path[1:]...) |
||||
if found.ValueType() != InvalidValue { |
||||
arr = append(arr, found) |
||||
} |
||||
return true |
||||
}) |
||||
return wrapArray(arr) |
||||
} |
||||
return newInvalidAny(path) |
||||
default: |
||||
return newInvalidAny(path) |
||||
} |
||||
} |
||||
|
||||
func (any *arrayLazyAny) Size() int { |
||||
size := 0 |
||||
iter := any.cfg.BorrowIterator(any.buf) |
||||
defer any.cfg.ReturnIterator(iter) |
||||
iter.ReadArrayCB(func(iter *Iterator) bool { |
||||
size++ |
||||
iter.Skip() |
||||
return true |
||||
}) |
||||
return size |
||||
} |
||||
|
||||
func (any *arrayLazyAny) WriteTo(stream *Stream) { |
||||
stream.Write(any.buf) |
||||
} |
||||
|
||||
func (any *arrayLazyAny) GetInterface() interface{} { |
||||
iter := any.cfg.BorrowIterator(any.buf) |
||||
defer any.cfg.ReturnIterator(iter) |
||||
return iter.Read() |
||||
} |
||||
|
||||
type arrayAny struct { |
||||
baseAny |
||||
val reflect.Value |
||||
} |
||||
|
||||
func wrapArray(val interface{}) *arrayAny { |
||||
return &arrayAny{baseAny{}, reflect.ValueOf(val)} |
||||
} |
||||
|
||||
func (any *arrayAny) ValueType() ValueType { |
||||
return ArrayValue |
||||
} |
||||
|
||||
func (any *arrayAny) MustBeValid() Any { |
||||
return any |
||||
} |
||||
|
||||
func (any *arrayAny) LastError() error { |
||||
return nil |
||||
} |
||||
|
||||
func (any *arrayAny) ToBool() bool { |
||||
return any.val.Len() != 0 |
||||
} |
||||
|
||||
func (any *arrayAny) ToInt() int { |
||||
if any.val.Len() == 0 { |
||||
return 0 |
||||
} |
||||
return 1 |
||||
} |
||||
|
||||
func (any *arrayAny) ToInt32() int32 { |
||||
if any.val.Len() == 0 { |
||||
return 0 |
||||
} |
||||
return 1 |
||||
} |
||||
|
||||
func (any *arrayAny) ToInt64() int64 { |
||||
if any.val.Len() == 0 { |
||||
return 0 |
||||
} |
||||
return 1 |
||||
} |
||||
|
||||
func (any *arrayAny) ToUint() uint { |
||||
if any.val.Len() == 0 { |
||||
return 0 |
||||
} |
||||
return 1 |
||||
} |
||||
|
||||
func (any *arrayAny) ToUint32() uint32 { |
||||
if any.val.Len() == 0 { |
||||
return 0 |
||||
} |
||||
return 1 |
||||
} |
||||
|
||||
func (any *arrayAny) ToUint64() uint64 { |
||||
if any.val.Len() == 0 { |
||||
return 0 |
||||
} |
||||
return 1 |
||||
} |
||||
|
||||
func (any *arrayAny) ToFloat32() float32 { |
||||
if any.val.Len() == 0 { |
||||
return 0 |
||||
} |
||||
return 1 |
||||
} |
||||
|
||||
func (any *arrayAny) ToFloat64() float64 { |
||||
if any.val.Len() == 0 { |
||||
return 0 |
||||
} |
||||
return 1 |
||||
} |
||||
|
||||
func (any *arrayAny) ToString() string { |
||||
str, _ := MarshalToString(any.val.Interface()) |
||||
return str |
||||
} |
||||
|
||||
func (any *arrayAny) Get(path ...interface{}) Any { |
||||
if len(path) == 0 { |
||||
return any |
||||
} |
||||
switch firstPath := path[0].(type) { |
||||
case int: |
||||
if firstPath < 0 || firstPath >= any.val.Len() { |
||||
return newInvalidAny(path) |
||||
} |
||||
return Wrap(any.val.Index(firstPath).Interface()) |
||||
case int32: |
||||
if '*' == firstPath { |
||||
mappedAll := make([]Any, 0) |
||||
for i := 0; i < any.val.Len(); i++ { |
||||
mapped := Wrap(any.val.Index(i).Interface()).Get(path[1:]...) |
||||
if mapped.ValueType() != InvalidValue { |
||||
mappedAll = append(mappedAll, mapped) |
||||
} |
||||
} |
||||
return wrapArray(mappedAll) |
||||
} |
||||
return newInvalidAny(path) |
||||
default: |
||||
return newInvalidAny(path) |
||||
} |
||||
} |
||||
|
||||
func (any *arrayAny) Size() int { |
||||
return any.val.Len() |
||||
} |
||||
|
||||
func (any *arrayAny) WriteTo(stream *Stream) { |
||||
stream.WriteVal(any.val) |
||||
} |
||||
|
||||
func (any *arrayAny) GetInterface() interface{} { |
||||
return any.val.Interface() |
||||
} |
||||
@ -0,0 +1,137 @@ |
||||
package jsoniter |
||||
|
||||
type trueAny struct { |
||||
baseAny |
||||
} |
||||
|
||||
func (any *trueAny) LastError() error { |
||||
return nil |
||||
} |
||||
|
||||
func (any *trueAny) ToBool() bool { |
||||
return true |
||||
} |
||||
|
||||
func (any *trueAny) ToInt() int { |
||||
return 1 |
||||
} |
||||
|
||||
func (any *trueAny) ToInt32() int32 { |
||||
return 1 |
||||
} |
||||
|
||||
func (any *trueAny) ToInt64() int64 { |
||||
return 1 |
||||
} |
||||
|
||||
func (any *trueAny) ToUint() uint { |
||||
return 1 |
||||
} |
||||
|
||||
func (any *trueAny) ToUint32() uint32 { |
||||
return 1 |
||||
} |
||||
|
||||
func (any *trueAny) ToUint64() uint64 { |
||||
return 1 |
||||
} |
||||
|
||||
func (any *trueAny) ToFloat32() float32 { |
||||
return 1 |
||||
} |
||||
|
||||
func (any *trueAny) ToFloat64() float64 { |
||||
return 1 |
||||
} |
||||
|
||||
func (any *trueAny) ToString() string { |
||||
return "true" |
||||
} |
||||
|
||||
func (any *trueAny) WriteTo(stream *Stream) { |
||||
stream.WriteTrue() |
||||
} |
||||
|
||||
func (any *trueAny) Parse() *Iterator { |
||||
return nil |
||||
} |
||||
|
||||
func (any *trueAny) GetInterface() interface{} { |
||||
return true |
||||
} |
||||
|
||||
func (any *trueAny) ValueType() ValueType { |
||||
return BoolValue |
||||
} |
||||
|
||||
func (any *trueAny) MustBeValid() Any { |
||||
return any |
||||
} |
||||
|
||||
type falseAny struct { |
||||
baseAny |
||||
} |
||||
|
||||
func (any *falseAny) LastError() error { |
||||
return nil |
||||
} |
||||
|
||||
func (any *falseAny) ToBool() bool { |
||||
return false |
||||
} |
||||
|
||||
func (any *falseAny) ToInt() int { |
||||
return 0 |
||||
} |
||||
|
||||
func (any *falseAny) ToInt32() int32 { |
||||
return 0 |
||||
} |
||||
|
||||
func (any *falseAny) ToInt64() int64 { |
||||
return 0 |
||||
} |
||||
|
||||
func (any *falseAny) ToUint() uint { |
||||
return 0 |
||||
} |
||||
|
||||
func (any *falseAny) ToUint32() uint32 { |
||||
return 0 |
||||
} |
||||
|
||||
func (any *falseAny) ToUint64() uint64 { |
||||
return 0 |
||||
} |
||||
|
||||
func (any *falseAny) ToFloat32() float32 { |
||||
return 0 |
||||
} |
||||
|
||||
func (any *falseAny) ToFloat64() float64 { |
||||
return 0 |
||||
} |
||||
|
||||
func (any *falseAny) ToString() string { |
||||
return "false" |
||||
} |
||||
|
||||
func (any *falseAny) WriteTo(stream *Stream) { |
||||
stream.WriteFalse() |
||||
} |
||||
|
||||
func (any *falseAny) Parse() *Iterator { |
||||
return nil |
||||
} |
||||
|
||||
func (any *falseAny) GetInterface() interface{} { |
||||
return false |
||||
} |
||||
|
||||
func (any *falseAny) ValueType() ValueType { |
||||
return BoolValue |
||||
} |
||||
|
||||
func (any *falseAny) MustBeValid() Any { |
||||
return any |
||||
} |
||||
@ -0,0 +1,83 @@ |
||||
package jsoniter |
||||
|
||||
import ( |
||||
"strconv" |
||||
) |
||||
|
||||
type floatAny struct { |
||||
baseAny |
||||
val float64 |
||||
} |
||||
|
||||
func (any *floatAny) Parse() *Iterator { |
||||
return nil |
||||
} |
||||
|
||||
func (any *floatAny) ValueType() ValueType { |
||||
return NumberValue |
||||
} |
||||
|
||||
func (any *floatAny) MustBeValid() Any { |
||||
return any |
||||
} |
||||
|
||||
func (any *floatAny) LastError() error { |
||||
return nil |
||||
} |
||||
|
||||
func (any *floatAny) ToBool() bool { |
||||
return any.ToFloat64() != 0 |
||||
} |
||||
|
||||
func (any *floatAny) ToInt() int { |
||||
return int(any.val) |
||||
} |
||||
|
||||
func (any *floatAny) ToInt32() int32 { |
||||
return int32(any.val) |
||||
} |
||||
|
||||
func (any *floatAny) ToInt64() int64 { |
||||
return int64(any.val) |
||||
} |
||||
|
||||
func (any *floatAny) ToUint() uint { |
||||
if any.val > 0 { |
||||
return uint(any.val) |
||||
} |
||||
return 0 |
||||
} |
||||
|
||||
func (any *floatAny) ToUint32() uint32 { |
||||
if any.val > 0 { |
||||
return uint32(any.val) |
||||
} |
||||
return 0 |
||||
} |
||||
|
||||
func (any *floatAny) ToUint64() uint64 { |
||||
if any.val > 0 { |
||||
return uint64(any.val) |
||||
} |
||||
return 0 |
||||
} |
||||
|
||||
func (any *floatAny) ToFloat32() float32 { |
||||
return float32(any.val) |
||||
} |
||||
|
||||
func (any *floatAny) ToFloat64() float64 { |
||||
return any.val |
||||
} |
||||
|
||||
func (any *floatAny) ToString() string { |
||||
return strconv.FormatFloat(any.val, 'E', -1, 64) |
||||
} |
||||
|
||||
func (any *floatAny) WriteTo(stream *Stream) { |
||||
stream.WriteFloat64(any.val) |
||||
} |
||||
|
||||
func (any *floatAny) GetInterface() interface{} { |
||||
return any.val |
||||
} |
||||
@ -0,0 +1,74 @@ |
||||
package jsoniter |
||||
|
||||
import ( |
||||
"strconv" |
||||
) |
||||
|
||||
type int32Any struct { |
||||
baseAny |
||||
val int32 |
||||
} |
||||
|
||||
func (any *int32Any) LastError() error { |
||||
return nil |
||||
} |
||||
|
||||
func (any *int32Any) ValueType() ValueType { |
||||
return NumberValue |
||||
} |
||||
|
||||
func (any *int32Any) MustBeValid() Any { |
||||
return any |
||||
} |
||||
|
||||
func (any *int32Any) ToBool() bool { |
||||
return any.val != 0 |
||||
} |
||||
|
||||
func (any *int32Any) ToInt() int { |
||||
return int(any.val) |
||||
} |
||||
|
||||
func (any *int32Any) ToInt32() int32 { |
||||
return any.val |
||||
} |
||||
|
||||
func (any *int32Any) ToInt64() int64 { |
||||
return int64(any.val) |
||||
} |
||||
|
||||
func (any *int32Any) ToUint() uint { |
||||
return uint(any.val) |
||||
} |
||||
|
||||
func (any *int32Any) ToUint32() uint32 { |
||||
return uint32(any.val) |
||||
} |
||||
|
||||
func (any *int32Any) ToUint64() uint64 { |
||||
return uint64(any.val) |
||||
} |
||||
|
||||
func (any *int32Any) ToFloat32() float32 { |
||||
return float32(any.val) |
||||
} |
||||
|
||||
func (any *int32Any) ToFloat64() float64 { |
||||
return float64(any.val) |
||||
} |
||||
|
||||
func (any *int32Any) ToString() string { |
||||
return strconv.FormatInt(int64(any.val), 10) |
||||
} |
||||
|
||||
func (any *int32Any) WriteTo(stream *Stream) { |
||||
stream.WriteInt32(any.val) |
||||
} |
||||
|
||||
func (any *int32Any) Parse() *Iterator { |
||||
return nil |
||||
} |
||||
|
||||
func (any *int32Any) GetInterface() interface{} { |
||||
return any.val |
||||
} |
||||
@ -0,0 +1,74 @@ |
||||
package jsoniter |
||||
|
||||
import ( |
||||
"strconv" |
||||
) |
||||
|
||||
type int64Any struct { |
||||
baseAny |
||||
val int64 |
||||
} |
||||
|
||||
func (any *int64Any) LastError() error { |
||||
return nil |
||||
} |
||||
|
||||
func (any *int64Any) ValueType() ValueType { |
||||
return NumberValue |
||||
} |
||||
|
||||
func (any *int64Any) MustBeValid() Any { |
||||
return any |
||||
} |
||||
|
||||
func (any *int64Any) ToBool() bool { |
||||
return any.val != 0 |
||||
} |
||||
|
||||
func (any *int64Any) ToInt() int { |
||||
return int(any.val) |
||||
} |
||||
|
||||
func (any *int64Any) ToInt32() int32 { |
||||
return int32(any.val) |
||||
} |
||||
|
||||
func (any *int64Any) ToInt64() int64 { |
||||
return any.val |
||||
} |
||||
|
||||
func (any *int64Any) ToUint() uint { |
||||
return uint(any.val) |
||||
} |
||||
|
||||
func (any *int64Any) ToUint32() uint32 { |
||||
return uint32(any.val) |
||||
} |
||||
|
||||
func (any *int64Any) ToUint64() uint64 { |
||||
return uint64(any.val) |
||||
} |
||||
|
||||
func (any *int64Any) ToFloat32() float32 { |
||||
return float32(any.val) |
||||
} |
||||
|
||||
func (any *int64Any) ToFloat64() float64 { |
||||
return float64(any.val) |
||||
} |
||||
|
||||
func (any *int64Any) ToString() string { |
||||
return strconv.FormatInt(any.val, 10) |
||||
} |
||||
|
||||
func (any *int64Any) WriteTo(stream *Stream) { |
||||
stream.WriteInt64(any.val) |
||||
} |
||||
|
||||
func (any *int64Any) Parse() *Iterator { |
||||
return nil |
||||
} |
||||
|
||||
func (any *int64Any) GetInterface() interface{} { |
||||
return any.val |
||||
} |
||||
@ -0,0 +1,82 @@ |
||||
package jsoniter |
||||
|
||||
import "fmt" |
||||
|
||||
type invalidAny struct { |
||||
baseAny |
||||
err error |
||||
} |
||||
|
||||
func newInvalidAny(path []interface{}) *invalidAny { |
||||
return &invalidAny{baseAny{}, fmt.Errorf("%v not found", path)} |
||||
} |
||||
|
||||
func (any *invalidAny) LastError() error { |
||||
return any.err |
||||
} |
||||
|
||||
func (any *invalidAny) ValueType() ValueType { |
||||
return InvalidValue |
||||
} |
||||
|
||||
func (any *invalidAny) MustBeValid() Any { |
||||
panic(any.err) |
||||
} |
||||
|
||||
func (any *invalidAny) ToBool() bool { |
||||
return false |
||||
} |
||||
|
||||
func (any *invalidAny) ToInt() int { |
||||
return 0 |
||||
} |
||||
|
||||
func (any *invalidAny) ToInt32() int32 { |
||||
return 0 |
||||
} |
||||
|
||||
func (any *invalidAny) ToInt64() int64 { |
||||
return 0 |
||||
} |
||||
|
||||
func (any *invalidAny) ToUint() uint { |
||||
return 0 |
||||
} |
||||
|
||||
func (any *invalidAny) ToUint32() uint32 { |
||||
return 0 |
||||
} |
||||
|
||||
func (any *invalidAny) ToUint64() uint64 { |
||||
return 0 |
||||
} |
||||
|
||||
func (any *invalidAny) ToFloat32() float32 { |
||||
return 0 |
||||
} |
||||
|
||||
func (any *invalidAny) ToFloat64() float64 { |
||||
return 0 |
||||
} |
||||
|
||||
func (any *invalidAny) ToString() string { |
||||
return "" |
||||
} |
||||
|
||||
func (any *invalidAny) WriteTo(stream *Stream) { |
||||
} |
||||
|
||||
func (any *invalidAny) Get(path ...interface{}) Any { |
||||
if any.err == nil { |
||||
return &invalidAny{baseAny{}, fmt.Errorf("get %v from invalid", path)} |
||||
} |
||||
return &invalidAny{baseAny{}, fmt.Errorf("%v, get %v from invalid", any.err, path)} |
||||
} |
||||
|
||||
func (any *invalidAny) Parse() *Iterator { |
||||
return nil |
||||
} |
||||
|
||||
func (any *invalidAny) GetInterface() interface{} { |
||||
return nil |
||||
} |
||||
@ -0,0 +1,69 @@ |
||||
package jsoniter |
||||
|
||||
type nilAny struct { |
||||
baseAny |
||||
} |
||||
|
||||
func (any *nilAny) LastError() error { |
||||
return nil |
||||
} |
||||
|
||||
func (any *nilAny) ValueType() ValueType { |
||||
return NilValue |
||||
} |
||||
|
||||
func (any *nilAny) MustBeValid() Any { |
||||
return any |
||||
} |
||||
|
||||
func (any *nilAny) ToBool() bool { |
||||
return false |
||||
} |
||||
|
||||
func (any *nilAny) ToInt() int { |
||||
return 0 |
||||
} |
||||
|
||||
func (any *nilAny) ToInt32() int32 { |
||||
return 0 |
||||
} |
||||
|
||||
func (any *nilAny) ToInt64() int64 { |
||||
return 0 |
||||
} |
||||
|
||||
func (any *nilAny) ToUint() uint { |
||||
return 0 |
||||
} |
||||
|
||||
func (any *nilAny) ToUint32() uint32 { |
||||
return 0 |
||||
} |
||||
|
||||
func (any *nilAny) ToUint64() uint64 { |
||||
return 0 |
||||
} |
||||
|
||||
func (any *nilAny) ToFloat32() float32 { |
||||
return 0 |
||||
} |
||||
|
||||
func (any *nilAny) ToFloat64() float64 { |
||||
return 0 |
||||
} |
||||
|
||||
func (any *nilAny) ToString() string { |
||||
return "" |
||||
} |
||||
|
||||
func (any *nilAny) WriteTo(stream *Stream) { |
||||
stream.WriteNil() |
||||
} |
||||
|
||||
func (any *nilAny) Parse() *Iterator { |
||||
return nil |
||||
} |
||||
|
||||
func (any *nilAny) GetInterface() interface{} { |
||||
return nil |
||||
} |
||||
@ -0,0 +1,123 @@ |
||||
package jsoniter |
||||
|
||||
import ( |
||||
"io" |
||||
"unsafe" |
||||
) |
||||
|
||||
type numberLazyAny struct { |
||||
baseAny |
||||
cfg *frozenConfig |
||||
buf []byte |
||||
err error |
||||
} |
||||
|
||||
func (any *numberLazyAny) ValueType() ValueType { |
||||
return NumberValue |
||||
} |
||||
|
||||
func (any *numberLazyAny) MustBeValid() Any { |
||||
return any |
||||
} |
||||
|
||||
func (any *numberLazyAny) LastError() error { |
||||
return any.err |
||||
} |
||||
|
||||
func (any *numberLazyAny) ToBool() bool { |
||||
return any.ToFloat64() != 0 |
||||
} |
||||
|
||||
func (any *numberLazyAny) ToInt() int { |
||||
iter := any.cfg.BorrowIterator(any.buf) |
||||
defer any.cfg.ReturnIterator(iter) |
||||
val := iter.ReadInt() |
||||
if iter.Error != nil && iter.Error != io.EOF { |
||||
any.err = iter.Error |
||||
} |
||||
return val |
||||
} |
||||
|
||||
func (any *numberLazyAny) ToInt32() int32 { |
||||
iter := any.cfg.BorrowIterator(any.buf) |
||||
defer any.cfg.ReturnIterator(iter) |
||||
val := iter.ReadInt32() |
||||
if iter.Error != nil && iter.Error != io.EOF { |
||||
any.err = iter.Error |
||||
} |
||||
return val |
||||
} |
||||
|
||||
func (any *numberLazyAny) ToInt64() int64 { |
||||
iter := any.cfg.BorrowIterator(any.buf) |
||||
defer any.cfg.ReturnIterator(iter) |
||||
val := iter.ReadInt64() |
||||
if iter.Error != nil && iter.Error != io.EOF { |
||||
any.err = iter.Error |
||||
} |
||||
return val |
||||
} |
||||
|
||||
func (any *numberLazyAny) ToUint() uint { |
||||
iter := any.cfg.BorrowIterator(any.buf) |
||||
defer any.cfg.ReturnIterator(iter) |
||||
val := iter.ReadUint() |
||||
if iter.Error != nil && iter.Error != io.EOF { |
||||
any.err = iter.Error |
||||
} |
||||
return val |
||||
} |
||||
|
||||
func (any *numberLazyAny) ToUint32() uint32 { |
||||
iter := any.cfg.BorrowIterator(any.buf) |
||||
defer any.cfg.ReturnIterator(iter) |
||||
val := iter.ReadUint32() |
||||
if iter.Error != nil && iter.Error != io.EOF { |
||||
any.err = iter.Error |
||||
} |
||||
return val |
||||
} |
||||
|
||||
func (any *numberLazyAny) ToUint64() uint64 { |
||||
iter := any.cfg.BorrowIterator(any.buf) |
||||
defer any.cfg.ReturnIterator(iter) |
||||
val := iter.ReadUint64() |
||||
if iter.Error != nil && iter.Error != io.EOF { |
||||
any.err = iter.Error |
||||
} |
||||
return val |
||||
} |
||||
|
||||
func (any *numberLazyAny) ToFloat32() float32 { |
||||
iter := any.cfg.BorrowIterator(any.buf) |
||||
defer any.cfg.ReturnIterator(iter) |
||||
val := iter.ReadFloat32() |
||||
if iter.Error != nil && iter.Error != io.EOF { |
||||
any.err = iter.Error |
||||
} |
||||
return val |
||||
} |
||||
|
||||
func (any *numberLazyAny) ToFloat64() float64 { |
||||
iter := any.cfg.BorrowIterator(any.buf) |
||||
defer any.cfg.ReturnIterator(iter) |
||||
val := iter.ReadFloat64() |
||||
if iter.Error != nil && iter.Error != io.EOF { |
||||
any.err = iter.Error |
||||
} |
||||
return val |
||||
} |
||||
|
||||
func (any *numberLazyAny) ToString() string { |
||||
return *(*string)(unsafe.Pointer(&any.buf)) |
||||
} |
||||
|
||||
func (any *numberLazyAny) WriteTo(stream *Stream) { |
||||
stream.Write(any.buf) |
||||
} |
||||
|
||||
func (any *numberLazyAny) GetInterface() interface{} { |
||||
iter := any.cfg.BorrowIterator(any.buf) |
||||
defer any.cfg.ReturnIterator(iter) |
||||
return iter.Read() |
||||
} |
||||
@ -0,0 +1,374 @@ |
||||
package jsoniter |
||||
|
||||
import ( |
||||
"reflect" |
||||
"unsafe" |
||||
) |
||||
|
||||
type objectLazyAny struct { |
||||
baseAny |
||||
cfg *frozenConfig |
||||
buf []byte |
||||
err error |
||||
} |
||||
|
||||
func (any *objectLazyAny) ValueType() ValueType { |
||||
return ObjectValue |
||||
} |
||||
|
||||
func (any *objectLazyAny) MustBeValid() Any { |
||||
return any |
||||
} |
||||
|
||||
func (any *objectLazyAny) LastError() error { |
||||
return any.err |
||||
} |
||||
|
||||
func (any *objectLazyAny) ToBool() bool { |
||||
return true |
||||
} |
||||
|
||||
func (any *objectLazyAny) ToInt() int { |
||||
return 0 |
||||
} |
||||
|
||||
func (any *objectLazyAny) ToInt32() int32 { |
||||
return 0 |
||||
} |
||||
|
||||
func (any *objectLazyAny) ToInt64() int64 { |
||||
return 0 |
||||
} |
||||
|
||||
func (any *objectLazyAny) ToUint() uint { |
||||
return 0 |
||||
} |
||||
|
||||
func (any *objectLazyAny) ToUint32() uint32 { |
||||
return 0 |
||||
} |
||||
|
||||
func (any *objectLazyAny) ToUint64() uint64 { |
||||
return 0 |
||||
} |
||||
|
||||
func (any *objectLazyAny) ToFloat32() float32 { |
||||
return 0 |
||||
} |
||||
|
||||
func (any *objectLazyAny) ToFloat64() float64 { |
||||
return 0 |
||||
} |
||||
|
||||
func (any *objectLazyAny) ToString() string { |
||||
return *(*string)(unsafe.Pointer(&any.buf)) |
||||
} |
||||
|
||||
func (any *objectLazyAny) ToVal(obj interface{}) { |
||||
iter := any.cfg.BorrowIterator(any.buf) |
||||
defer any.cfg.ReturnIterator(iter) |
||||
iter.ReadVal(obj) |
||||
} |
||||
|
||||
func (any *objectLazyAny) Get(path ...interface{}) Any { |
||||
if len(path) == 0 { |
||||
return any |
||||
} |
||||
switch firstPath := path[0].(type) { |
||||
case string: |
||||
iter := any.cfg.BorrowIterator(any.buf) |
||||
defer any.cfg.ReturnIterator(iter) |
||||
valueBytes := locateObjectField(iter, firstPath) |
||||
if valueBytes == nil { |
||||
return newInvalidAny(path) |
||||
} |
||||
iter.ResetBytes(valueBytes) |
||||
return locatePath(iter, path[1:]) |
||||
case int32: |
||||
if '*' == firstPath { |
||||
mappedAll := map[string]Any{} |
||||
iter := any.cfg.BorrowIterator(any.buf) |
||||
defer any.cfg.ReturnIterator(iter) |
||||
iter.ReadMapCB(func(iter *Iterator, field string) bool { |
||||
mapped := locatePath(iter, path[1:]) |
||||
if mapped.ValueType() != InvalidValue { |
||||
mappedAll[field] = mapped |
||||
} |
||||
return true |
||||
}) |
||||
return wrapMap(mappedAll) |
||||
} |
||||
return newInvalidAny(path) |
||||
default: |
||||
return newInvalidAny(path) |
||||
} |
||||
} |
||||
|
||||
func (any *objectLazyAny) Keys() []string { |
||||
keys := []string{} |
||||
iter := any.cfg.BorrowIterator(any.buf) |
||||
defer any.cfg.ReturnIterator(iter) |
||||
iter.ReadMapCB(func(iter *Iterator, field string) bool { |
||||
iter.Skip() |
||||
keys = append(keys, field) |
||||
return true |
||||
}) |
||||
return keys |
||||
} |
||||
|
||||
func (any *objectLazyAny) Size() int { |
||||
size := 0 |
||||
iter := any.cfg.BorrowIterator(any.buf) |
||||
defer any.cfg.ReturnIterator(iter) |
||||
iter.ReadObjectCB(func(iter *Iterator, field string) bool { |
||||
iter.Skip() |
||||
size++ |
||||
return true |
||||
}) |
||||
return size |
||||
} |
||||
|
||||
func (any *objectLazyAny) WriteTo(stream *Stream) { |
||||
stream.Write(any.buf) |
||||
} |
||||
|
||||
func (any *objectLazyAny) GetInterface() interface{} { |
||||
iter := any.cfg.BorrowIterator(any.buf) |
||||
defer any.cfg.ReturnIterator(iter) |
||||
return iter.Read() |
||||
} |
||||
|
||||
type objectAny struct { |
||||
baseAny |
||||
err error |
||||
val reflect.Value |
||||
} |
||||
|
||||
func wrapStruct(val interface{}) *objectAny { |
||||
return &objectAny{baseAny{}, nil, reflect.ValueOf(val)} |
||||
} |
||||
|
||||
func (any *objectAny) ValueType() ValueType { |
||||
return ObjectValue |
||||
} |
||||
|
||||
func (any *objectAny) MustBeValid() Any { |
||||
return any |
||||
} |
||||
|
||||
func (any *objectAny) Parse() *Iterator { |
||||
return nil |
||||
} |
||||
|
||||
func (any *objectAny) LastError() error { |
||||
return any.err |
||||
} |
||||
|
||||
func (any *objectAny) ToBool() bool { |
||||
return any.val.NumField() != 0 |
||||
} |
||||
|
||||
func (any *objectAny) ToInt() int { |
||||
return 0 |
||||
} |
||||
|
||||
func (any *objectAny) ToInt32() int32 { |
||||
return 0 |
||||
} |
||||
|
||||
func (any *objectAny) ToInt64() int64 { |
||||
return 0 |
||||
} |
||||
|
||||
func (any *objectAny) ToUint() uint { |
||||
return 0 |
||||
} |
||||
|
||||
func (any *objectAny) ToUint32() uint32 { |
||||
return 0 |
||||
} |
||||
|
||||
func (any *objectAny) ToUint64() uint64 { |
||||
return 0 |
||||
} |
||||
|
||||
func (any *objectAny) ToFloat32() float32 { |
||||
return 0 |
||||
} |
||||
|
||||
func (any *objectAny) ToFloat64() float64 { |
||||
return 0 |
||||
} |
||||
|
||||
func (any *objectAny) ToString() string { |
||||
str, err := MarshalToString(any.val.Interface()) |
||||
any.err = err |
||||
return str |
||||
} |
||||
|
||||
func (any *objectAny) Get(path ...interface{}) Any { |
||||
if len(path) == 0 { |
||||
return any |
||||
} |
||||
switch firstPath := path[0].(type) { |
||||
case string: |
||||
field := any.val.FieldByName(firstPath) |
||||
if !field.IsValid() { |
||||
return newInvalidAny(path) |
||||
} |
||||
return Wrap(field.Interface()) |
||||
case int32: |
||||
if '*' == firstPath { |
||||
mappedAll := map[string]Any{} |
||||
for i := 0; i < any.val.NumField(); i++ { |
||||
field := any.val.Field(i) |
||||
if field.CanInterface() { |
||||
mapped := Wrap(field.Interface()).Get(path[1:]...) |
||||
if mapped.ValueType() != InvalidValue { |
||||
mappedAll[any.val.Type().Field(i).Name] = mapped |
||||
} |
||||
} |
||||
} |
||||
return wrapMap(mappedAll) |
||||
} |
||||
return newInvalidAny(path) |
||||
default: |
||||
return newInvalidAny(path) |
||||
} |
||||
} |
||||
|
||||
func (any *objectAny) Keys() []string { |
||||
keys := make([]string, 0, any.val.NumField()) |
||||
for i := 0; i < any.val.NumField(); i++ { |
||||
keys = append(keys, any.val.Type().Field(i).Name) |
||||
} |
||||
return keys |
||||
} |
||||
|
||||
func (any *objectAny) Size() int { |
||||
return any.val.NumField() |
||||
} |
||||
|
||||
func (any *objectAny) WriteTo(stream *Stream) { |
||||
stream.WriteVal(any.val) |
||||
} |
||||
|
||||
func (any *objectAny) GetInterface() interface{} { |
||||
return any.val.Interface() |
||||
} |
||||
|
||||
type mapAny struct { |
||||
baseAny |
||||
err error |
||||
val reflect.Value |
||||
} |
||||
|
||||
func wrapMap(val interface{}) *mapAny { |
||||
return &mapAny{baseAny{}, nil, reflect.ValueOf(val)} |
||||
} |
||||
|
||||
func (any *mapAny) ValueType() ValueType { |
||||
return ObjectValue |
||||
} |
||||
|
||||
func (any *mapAny) MustBeValid() Any { |
||||
return any |
||||
} |
||||
|
||||
func (any *mapAny) Parse() *Iterator { |
||||
return nil |
||||
} |
||||
|
||||
func (any *mapAny) LastError() error { |
||||
return any.err |
||||
} |
||||
|
||||
func (any *mapAny) ToBool() bool { |
||||
return true |
||||
} |
||||
|
||||
func (any *mapAny) ToInt() int { |
||||
return 0 |
||||
} |
||||
|
||||
func (any *mapAny) ToInt32() int32 { |
||||
return 0 |
||||
} |
||||
|
||||
func (any *mapAny) ToInt64() int64 { |
||||
return 0 |
||||
} |
||||
|
||||
func (any *mapAny) ToUint() uint { |
||||
return 0 |
||||
} |
||||
|
||||
func (any *mapAny) ToUint32() uint32 { |
||||
return 0 |
||||
} |
||||
|
||||
func (any *mapAny) ToUint64() uint64 { |
||||
return 0 |
||||
} |
||||
|
||||
func (any *mapAny) ToFloat32() float32 { |
||||
return 0 |
||||
} |
||||
|
||||
func (any *mapAny) ToFloat64() float64 { |
||||
return 0 |
||||
} |
||||
|
||||
func (any *mapAny) ToString() string { |
||||
str, err := MarshalToString(any.val.Interface()) |
||||
any.err = err |
||||
return str |
||||
} |
||||
|
||||
func (any *mapAny) Get(path ...interface{}) Any { |
||||
if len(path) == 0 { |
||||
return any |
||||
} |
||||
switch firstPath := path[0].(type) { |
||||
case int32: |
||||
if '*' == firstPath { |
||||
mappedAll := map[string]Any{} |
||||
for _, key := range any.val.MapKeys() { |
||||
keyAsStr := key.String() |
||||
element := Wrap(any.val.MapIndex(key).Interface()) |
||||
mapped := element.Get(path[1:]...) |
||||
if mapped.ValueType() != InvalidValue { |
||||
mappedAll[keyAsStr] = mapped |
||||
} |
||||
} |
||||
return wrapMap(mappedAll) |
||||
} |
||||
return newInvalidAny(path) |
||||
default: |
||||
value := any.val.MapIndex(reflect.ValueOf(firstPath)) |
||||
if !value.IsValid() { |
||||
return newInvalidAny(path) |
||||
} |
||||
return Wrap(value.Interface()) |
||||
} |
||||
} |
||||
|
||||
func (any *mapAny) Keys() []string { |
||||
keys := make([]string, 0, any.val.Len()) |
||||
for _, key := range any.val.MapKeys() { |
||||
keys = append(keys, key.String()) |
||||
} |
||||
return keys |
||||
} |
||||
|
||||
func (any *mapAny) Size() int { |
||||
return any.val.Len() |
||||
} |
||||
|
||||
func (any *mapAny) WriteTo(stream *Stream) { |
||||
stream.WriteVal(any.val) |
||||
} |
||||
|
||||
func (any *mapAny) GetInterface() interface{} { |
||||
return any.val.Interface() |
||||
} |
||||
@ -0,0 +1,166 @@ |
||||
package jsoniter |
||||
|
||||
import ( |
||||
"fmt" |
||||
"strconv" |
||||
) |
||||
|
||||
type stringAny struct { |
||||
baseAny |
||||
val string |
||||
} |
||||
|
||||
func (any *stringAny) Get(path ...interface{}) Any { |
||||
if len(path) == 0 { |
||||
return any |
||||
} |
||||
return &invalidAny{baseAny{}, fmt.Errorf("GetIndex %v from simple value", path)} |
||||
} |
||||
|
||||
func (any *stringAny) Parse() *Iterator { |
||||
return nil |
||||
} |
||||
|
||||
func (any *stringAny) ValueType() ValueType { |
||||
return StringValue |
||||
} |
||||
|
||||
func (any *stringAny) MustBeValid() Any { |
||||
return any |
||||
} |
||||
|
||||
func (any *stringAny) LastError() error { |
||||
return nil |
||||
} |
||||
|
||||
func (any *stringAny) ToBool() bool { |
||||
str := any.ToString() |
||||
if str == "0" { |
||||
return false |
||||
} |
||||
for _, c := range str { |
||||
switch c { |
||||
case ' ', '\n', '\r', '\t': |
||||
default: |
||||
return true |
||||
} |
||||
} |
||||
return false |
||||
} |
||||
|
||||
func (any *stringAny) ToInt() int { |
||||
return int(any.ToInt64()) |
||||
|
||||
} |
||||
|
||||
func (any *stringAny) ToInt32() int32 { |
||||
return int32(any.ToInt64()) |
||||
} |
||||
|
||||
func (any *stringAny) ToInt64() int64 { |
||||
if any.val == "" { |
||||
return 0 |
||||
} |
||||
|
||||
flag := 1 |
||||
startPos := 0 |
||||
if any.val[0] == '+' || any.val[0] == '-' { |
||||
startPos = 1 |
||||
} |
||||
|
||||
if any.val[0] == '-' { |
||||
flag = -1 |
||||
} |
||||
|
||||
endPos := startPos |
||||
for i := startPos; i < len(any.val); i++ { |
||||
if any.val[i] >= '0' && any.val[i] <= '9' { |
||||
endPos = i + 1 |
||||
} else { |
||||
break |
||||
} |
||||
} |
||||
parsed, _ := strconv.ParseInt(any.val[startPos:endPos], 10, 64) |
||||
return int64(flag) * parsed |
||||
} |
||||
|
||||
func (any *stringAny) ToUint() uint { |
||||
return uint(any.ToUint64()) |
||||
} |
||||
|
||||
func (any *stringAny) ToUint32() uint32 { |
||||
return uint32(any.ToUint64()) |
||||
} |
||||
|
||||
func (any *stringAny) ToUint64() uint64 { |
||||
if any.val == "" { |
||||
return 0 |
||||
} |
||||
|
||||
startPos := 0 |
||||
|
||||
if any.val[0] == '-' { |
||||
return 0 |
||||
} |
||||
if any.val[0] == '+' { |
||||
startPos = 1 |
||||
} |
||||
|
||||
endPos := startPos |
||||
for i := startPos; i < len(any.val); i++ { |
||||
if any.val[i] >= '0' && any.val[i] <= '9' { |
||||
endPos = i + 1 |
||||
} else { |
||||
break |
||||
} |
||||
} |
||||
parsed, _ := strconv.ParseUint(any.val[startPos:endPos], 10, 64) |
||||
return parsed |
||||
} |
||||
|
||||
func (any *stringAny) ToFloat32() float32 { |
||||
return float32(any.ToFloat64()) |
||||
} |
||||
|
||||
func (any *stringAny) ToFloat64() float64 { |
||||
if len(any.val) == 0 { |
||||
return 0 |
||||
} |
||||
|
||||
// first char invalid
|
||||
if any.val[0] != '+' && any.val[0] != '-' && (any.val[0] > '9' || any.val[0] < '0') { |
||||
return 0 |
||||
} |
||||
|
||||
// extract valid num expression from string
|
||||
// eg 123true => 123, -12.12xxa => -12.12
|
||||
endPos := 1 |
||||
for i := 1; i < len(any.val); i++ { |
||||
if any.val[i] == '.' || any.val[i] == 'e' || any.val[i] == 'E' || any.val[i] == '+' || any.val[i] == '-' { |
||||
endPos = i + 1 |
||||
continue |
||||
} |
||||
|
||||
// end position is the first char which is not digit
|
||||
if any.val[i] >= '0' && any.val[i] <= '9' { |
||||
endPos = i + 1 |
||||
} else { |
||||
endPos = i |
||||
break |
||||
} |
||||
} |
||||
parsed, _ := strconv.ParseFloat(any.val[:endPos], 64) |
||||
return parsed |
||||
} |
||||
|
||||
func (any *stringAny) ToString() string { |
||||
return any.val |
||||
} |
||||
|
||||
func (any *stringAny) WriteTo(stream *Stream) { |
||||
stream.WriteString(any.val) |
||||
} |
||||
|
||||
func (any *stringAny) GetInterface() interface{} { |
||||
return any.val |
||||
} |
||||
@ -0,0 +1,74 @@ |
||||
package jsoniter |
||||
|
||||
import ( |
||||
"strconv" |
||||
) |
||||
|
||||
type uint32Any struct { |
||||
baseAny |
||||
val uint32 |
||||
} |
||||
|
||||
func (any *uint32Any) LastError() error { |
||||
return nil |
||||
} |
||||
|
||||
func (any *uint32Any) ValueType() ValueType { |
||||
return NumberValue |
||||
} |
||||
|
||||
func (any *uint32Any) MustBeValid() Any { |
||||
return any |
||||
} |
||||
|
||||
func (any *uint32Any) ToBool() bool { |
||||
return any.val != 0 |
||||
} |
||||
|
||||
func (any *uint32Any) ToInt() int { |
||||
return int(any.val) |
||||
} |
||||
|
||||
func (any *uint32Any) ToInt32() int32 { |
||||
return int32(any.val) |
||||
} |
||||
|
||||
func (any *uint32Any) ToInt64() int64 { |
||||
return int64(any.val) |
||||
} |
||||
|
||||
func (any *uint32Any) ToUint() uint { |
||||
return uint(any.val) |
||||
} |
||||
|
||||
func (any *uint32Any) ToUint32() uint32 { |
||||
return any.val |
||||
} |
||||
|
||||
func (any *uint32Any) ToUint64() uint64 { |
||||
return uint64(any.val) |
||||
} |
||||
|
||||
func (any *uint32Any) ToFloat32() float32 { |
||||
return float32(any.val) |
||||
} |
||||
|
||||
func (any *uint32Any) ToFloat64() float64 { |
||||
return float64(any.val) |
||||
} |
||||
|
||||
func (any *uint32Any) ToString() string { |
||||
return strconv.FormatInt(int64(any.val), 10) |
||||
} |
||||
|
||||
func (any *uint32Any) WriteTo(stream *Stream) { |
||||
stream.WriteUint32(any.val) |
||||
} |
||||
|
||||
func (any *uint32Any) Parse() *Iterator { |
||||
return nil |
||||
} |
||||
|
||||
func (any *uint32Any) GetInterface() interface{} { |
||||
return any.val |
||||
} |
||||
@ -0,0 +1,74 @@ |
||||
package jsoniter |
||||
|
||||
import ( |
||||
"strconv" |
||||
) |
||||
|
||||
type uint64Any struct { |
||||
baseAny |
||||
val uint64 |
||||
} |
||||
|
||||
func (any *uint64Any) LastError() error { |
||||
return nil |
||||
} |
||||
|
||||
func (any *uint64Any) ValueType() ValueType { |
||||
return NumberValue |
||||
} |
||||
|
||||
func (any *uint64Any) MustBeValid() Any { |
||||
return any |
||||
} |
||||
|
||||
func (any *uint64Any) ToBool() bool { |
||||
return any.val != 0 |
||||
} |
||||
|
||||
func (any *uint64Any) ToInt() int { |
||||
return int(any.val) |
||||
} |
||||
|
||||
func (any *uint64Any) ToInt32() int32 { |
||||
return int32(any.val) |
||||
} |
||||
|
||||
func (any *uint64Any) ToInt64() int64 { |
||||
return int64(any.val) |
||||
} |
||||
|
||||
func (any *uint64Any) ToUint() uint { |
||||
return uint(any.val) |
||||
} |
||||
|
||||
func (any *uint64Any) ToUint32() uint32 { |
||||
return uint32(any.val) |
||||
} |
||||
|
||||
func (any *uint64Any) ToUint64() uint64 { |
||||
return any.val |
||||
} |
||||
|
||||
func (any *uint64Any) ToFloat32() float32 { |
||||
return float32(any.val) |
||||
} |
||||
|
||||
func (any *uint64Any) ToFloat64() float64 { |
||||
return float64(any.val) |
||||
} |
||||
|
||||
func (any *uint64Any) ToString() string { |
||||
return strconv.FormatUint(any.val, 10) |
||||
} |
||||
|
||||
func (any *uint64Any) WriteTo(stream *Stream) { |
||||
stream.WriteUint64(any.val) |
||||
} |
||||
|
||||
func (any *uint64Any) Parse() *Iterator { |
||||
return nil |
||||
} |
||||
|
||||
func (any *uint64Any) GetInterface() interface{} { |
||||
return any.val |
||||
} |
||||
@ -0,0 +1,12 @@ |
||||
#!/bin/bash |
||||
set -e |
||||
set -x |
||||
|
||||
if [ ! -d /tmp/build-golang/src/github.com/json-iterator ]; then |
||||
mkdir -p /tmp/build-golang/src/github.com/json-iterator |
||||
ln -s $PWD /tmp/build-golang/src/github.com/json-iterator/go |
||||
fi |
||||
export GOPATH=/tmp/build-golang |
||||
go get -u github.com/golang/dep/cmd/dep |
||||
cd /tmp/build-golang/src/github.com/json-iterator/go |
||||
exec $GOPATH/bin/dep ensure -update |
||||
@ -0,0 +1,375 @@ |
||||
package jsoniter |
||||
|
||||
import ( |
||||
"encoding/json" |
||||
"io" |
||||
"reflect" |
||||
"sync" |
||||
"unsafe" |
||||
|
||||
"github.com/modern-go/concurrent" |
||||
"github.com/modern-go/reflect2" |
||||
) |
||||
|
||||
// Config customize how the API should behave.
|
||||
// The API is created from Config by Froze.
|
||||
type Config struct { |
||||
IndentionStep int |
||||
MarshalFloatWith6Digits bool |
||||
EscapeHTML bool |
||||
SortMapKeys bool |
||||
UseNumber bool |
||||
DisallowUnknownFields bool |
||||
TagKey string |
||||
OnlyTaggedField bool |
||||
ValidateJsonRawMessage bool |
||||
ObjectFieldMustBeSimpleString bool |
||||
CaseSensitive bool |
||||
} |
||||
|
||||
// API the public interface of this package.
|
||||
// Primary Marshal and Unmarshal.
|
||||
type API interface { |
||||
IteratorPool |
||||
StreamPool |
||||
MarshalToString(v interface{}) (string, error) |
||||
Marshal(v interface{}) ([]byte, error) |
||||
MarshalIndent(v interface{}, prefix, indent string) ([]byte, error) |
||||
UnmarshalFromString(str string, v interface{}) error |
||||
Unmarshal(data []byte, v interface{}) error |
||||
Get(data []byte, path ...interface{}) Any |
||||
NewEncoder(writer io.Writer) *Encoder |
||||
NewDecoder(reader io.Reader) *Decoder |
||||
Valid(data []byte) bool |
||||
RegisterExtension(extension Extension) |
||||
DecoderOf(typ reflect2.Type) ValDecoder |
||||
EncoderOf(typ reflect2.Type) ValEncoder |
||||
} |
||||
|
||||
// ConfigDefault the default API
|
||||
var ConfigDefault = Config{ |
||||
EscapeHTML: true, |
||||
}.Froze() |
||||
|
||||
// ConfigCompatibleWithStandardLibrary tries to be 100% compatible with standard library behavior
|
||||
var ConfigCompatibleWithStandardLibrary = Config{ |
||||
EscapeHTML: true, |
||||
SortMapKeys: true, |
||||
ValidateJsonRawMessage: true, |
||||
}.Froze() |
||||
|
||||
// ConfigFastest marshals float with only 6 digits precision
|
||||
var ConfigFastest = Config{ |
||||
EscapeHTML: false, |
||||
MarshalFloatWith6Digits: true, // will lose precession
|
||||
ObjectFieldMustBeSimpleString: true, // do not unescape object field
|
||||
}.Froze() |
||||
|
||||
type frozenConfig struct { |
||||
configBeforeFrozen Config |
||||
sortMapKeys bool |
||||
indentionStep int |
||||
objectFieldMustBeSimpleString bool |
||||
onlyTaggedField bool |
||||
disallowUnknownFields bool |
||||
decoderCache *concurrent.Map |
||||
encoderCache *concurrent.Map |
||||
encoderExtension Extension |
||||
decoderExtension Extension |
||||
extraExtensions []Extension |
||||
streamPool *sync.Pool |
||||
iteratorPool *sync.Pool |
||||
caseSensitive bool |
||||
} |
||||
|
||||
func (cfg *frozenConfig) initCache() { |
||||
cfg.decoderCache = concurrent.NewMap() |
||||
cfg.encoderCache = concurrent.NewMap() |
||||
} |
||||
|
||||
func (cfg *frozenConfig) addDecoderToCache(cacheKey uintptr, decoder ValDecoder) { |
||||
cfg.decoderCache.Store(cacheKey, decoder) |
||||
} |
||||
|
||||
func (cfg *frozenConfig) addEncoderToCache(cacheKey uintptr, encoder ValEncoder) { |
||||
cfg.encoderCache.Store(cacheKey, encoder) |
||||
} |
||||
|
||||
func (cfg *frozenConfig) getDecoderFromCache(cacheKey uintptr) ValDecoder { |
||||
decoder, found := cfg.decoderCache.Load(cacheKey) |
||||
if found { |
||||
return decoder.(ValDecoder) |
||||
} |
||||
return nil |
||||
} |
||||
|
||||
func (cfg *frozenConfig) getEncoderFromCache(cacheKey uintptr) ValEncoder { |
||||
encoder, found := cfg.encoderCache.Load(cacheKey) |
||||
if found { |
||||
return encoder.(ValEncoder) |
||||
} |
||||
return nil |
||||
} |
||||
|
||||
var cfgCache = concurrent.NewMap() |
||||
|
||||
func getFrozenConfigFromCache(cfg Config) *frozenConfig { |
||||
obj, found := cfgCache.Load(cfg) |
||||
if found { |
||||
return obj.(*frozenConfig) |
||||
} |
||||
return nil |
||||
} |
||||
|
||||
func addFrozenConfigToCache(cfg Config, frozenConfig *frozenConfig) { |
||||
cfgCache.Store(cfg, frozenConfig) |
||||
} |
||||
|
||||
// Froze forge API from config
|
||||
func (cfg Config) Froze() API { |
||||
api := &frozenConfig{ |
||||
sortMapKeys: cfg.SortMapKeys, |
||||
indentionStep: cfg.IndentionStep, |
||||
objectFieldMustBeSimpleString: cfg.ObjectFieldMustBeSimpleString, |
||||
onlyTaggedField: cfg.OnlyTaggedField, |
||||
disallowUnknownFields: cfg.DisallowUnknownFields, |
||||
caseSensitive: cfg.CaseSensitive, |
||||
} |
||||
api.streamPool = &sync.Pool{ |
||||
New: func() interface{} { |
||||
return NewStream(api, nil, 512) |
||||
}, |
||||
} |
||||
api.iteratorPool = &sync.Pool{ |
||||
New: func() interface{} { |
||||
return NewIterator(api) |
||||
}, |
||||
} |
||||
api.initCache() |
||||
encoderExtension := EncoderExtension{} |
||||
decoderExtension := DecoderExtension{} |
||||
if cfg.MarshalFloatWith6Digits { |
||||
api.marshalFloatWith6Digits(encoderExtension) |
||||
} |
||||
if cfg.EscapeHTML { |
||||
api.escapeHTML(encoderExtension) |
||||
} |
||||
if cfg.UseNumber { |
||||
api.useNumber(decoderExtension) |
||||
} |
||||
if cfg.ValidateJsonRawMessage { |
||||
api.validateJsonRawMessage(encoderExtension) |
||||
} |
||||
api.encoderExtension = encoderExtension |
||||
api.decoderExtension = decoderExtension |
||||
api.configBeforeFrozen = cfg |
||||
return api |
||||
} |
||||
|
||||
func (cfg Config) frozeWithCacheReuse(extraExtensions []Extension) *frozenConfig { |
||||
api := getFrozenConfigFromCache(cfg) |
||||
if api != nil { |
||||
return api |
||||
} |
||||
api = cfg.Froze().(*frozenConfig) |
||||
for _, extension := range extraExtensions { |
||||
api.RegisterExtension(extension) |
||||
} |
||||
addFrozenConfigToCache(cfg, api) |
||||
return api |
||||
} |
||||
|
||||
func (cfg *frozenConfig) validateJsonRawMessage(extension EncoderExtension) { |
||||
encoder := &funcEncoder{func(ptr unsafe.Pointer, stream *Stream) { |
||||
rawMessage := *(*json.RawMessage)(ptr) |
||||
iter := cfg.BorrowIterator([]byte(rawMessage)) |
||||
defer cfg.ReturnIterator(iter) |
||||
iter.Read() |
||||
if iter.Error != nil && iter.Error != io.EOF { |
||||
stream.WriteRaw("null") |
||||
} else { |
||||
stream.WriteRaw(string(rawMessage)) |
||||
} |
||||
}, func(ptr unsafe.Pointer) bool { |
||||
return len(*((*json.RawMessage)(ptr))) == 0 |
||||
}} |
||||
extension[reflect2.TypeOfPtr((*json.RawMessage)(nil)).Elem()] = encoder |
||||
extension[reflect2.TypeOfPtr((*RawMessage)(nil)).Elem()] = encoder |
||||
} |
||||
|
||||
func (cfg *frozenConfig) useNumber(extension DecoderExtension) { |
||||
extension[reflect2.TypeOfPtr((*interface{})(nil)).Elem()] = &funcDecoder{func(ptr unsafe.Pointer, iter *Iterator) { |
||||
exitingValue := *((*interface{})(ptr)) |
||||
if exitingValue != nil && reflect.TypeOf(exitingValue).Kind() == reflect.Ptr { |
||||
iter.ReadVal(exitingValue) |
||||
return |
||||
} |
||||
if iter.WhatIsNext() == NumberValue { |
||||
*((*interface{})(ptr)) = json.Number(iter.readNumberAsString()) |
||||
} else { |
||||
*((*interface{})(ptr)) = iter.Read() |
||||
} |
||||
}} |
||||
} |
||||
func (cfg *frozenConfig) getTagKey() string { |
||||
tagKey := cfg.configBeforeFrozen.TagKey |
||||
if tagKey == "" { |
||||
return "json" |
||||
} |
||||
return tagKey |
||||
} |
||||
|
||||
func (cfg *frozenConfig) RegisterExtension(extension Extension) { |
||||
cfg.extraExtensions = append(cfg.extraExtensions, extension) |
||||
copied := cfg.configBeforeFrozen |
||||
cfg.configBeforeFrozen = copied |
||||
} |
||||
|
||||
type lossyFloat32Encoder struct { |
||||
} |
||||
|
||||
func (encoder *lossyFloat32Encoder) Encode(ptr unsafe.Pointer, stream *Stream) { |
||||
stream.WriteFloat32Lossy(*((*float32)(ptr))) |
||||
} |
||||
|
||||
func (encoder *lossyFloat32Encoder) IsEmpty(ptr unsafe.Pointer) bool { |
||||
return *((*float32)(ptr)) == 0 |
||||
} |
||||
|
||||
type lossyFloat64Encoder struct { |
||||
} |
||||
|
||||
func (encoder *lossyFloat64Encoder) Encode(ptr unsafe.Pointer, stream *Stream) { |
||||
stream.WriteFloat64Lossy(*((*float64)(ptr))) |
||||
} |
||||
|
||||
func (encoder *lossyFloat64Encoder) IsEmpty(ptr unsafe.Pointer) bool { |
||||
return *((*float64)(ptr)) == 0 |
||||
} |
||||
|
||||
// EnableLossyFloatMarshalling keeps 10**(-6) precision
|
||||
// for float variables for better performance.
|
||||
func (cfg *frozenConfig) marshalFloatWith6Digits(extension EncoderExtension) { |
||||
// for better performance
|
||||
extension[reflect2.TypeOfPtr((*float32)(nil)).Elem()] = &lossyFloat32Encoder{} |
||||
extension[reflect2.TypeOfPtr((*float64)(nil)).Elem()] = &lossyFloat64Encoder{} |
||||
} |
||||
|
||||
type htmlEscapedStringEncoder struct { |
||||
} |
||||
|
||||
func (encoder *htmlEscapedStringEncoder) Encode(ptr unsafe.Pointer, stream *Stream) { |
||||
str := *((*string)(ptr)) |
||||
stream.WriteStringWithHTMLEscaped(str) |
||||
} |
||||
|
||||
func (encoder *htmlEscapedStringEncoder) IsEmpty(ptr unsafe.Pointer) bool { |
||||
return *((*string)(ptr)) == "" |
||||
} |
||||
|
||||
func (cfg *frozenConfig) escapeHTML(encoderExtension EncoderExtension) { |
||||
encoderExtension[reflect2.TypeOfPtr((*string)(nil)).Elem()] = &htmlEscapedStringEncoder{} |
||||
} |
||||
|
||||
func (cfg *frozenConfig) cleanDecoders() { |
||||
typeDecoders = map[string]ValDecoder{} |
||||
fieldDecoders = map[string]ValDecoder{} |
||||
*cfg = *(cfg.configBeforeFrozen.Froze().(*frozenConfig)) |
||||
} |
||||
|
||||
func (cfg *frozenConfig) cleanEncoders() { |
||||
typeEncoders = map[string]ValEncoder{} |
||||
fieldEncoders = map[string]ValEncoder{} |
||||
*cfg = *(cfg.configBeforeFrozen.Froze().(*frozenConfig)) |
||||
} |
||||
|
||||
func (cfg *frozenConfig) MarshalToString(v interface{}) (string, error) { |
||||
stream := cfg.BorrowStream(nil) |
||||
defer cfg.ReturnStream(stream) |
||||
stream.WriteVal(v) |
||||
if stream.Error != nil { |
||||
return "", stream.Error |
||||
} |
||||
return string(stream.Buffer()), nil |
||||
} |
||||
|
||||
func (cfg *frozenConfig) Marshal(v interface{}) ([]byte, error) { |
||||
stream := cfg.BorrowStream(nil) |
||||
defer cfg.ReturnStream(stream) |
||||
stream.WriteVal(v) |
||||
if stream.Error != nil { |
||||
return nil, stream.Error |
||||
} |
||||
result := stream.Buffer() |
||||
copied := make([]byte, len(result)) |
||||
copy(copied, result) |
||||
return copied, nil |
||||
} |
||||
|
||||
func (cfg *frozenConfig) MarshalIndent(v interface{}, prefix, indent string) ([]byte, error) { |
||||
if prefix != "" { |
||||
panic("prefix is not supported") |
||||
} |
||||
for _, r := range indent { |
||||
if r != ' ' { |
||||
panic("indent can only be space") |
||||
} |
||||
} |
||||
newCfg := cfg.configBeforeFrozen |
||||
newCfg.IndentionStep = len(indent) |
||||
return newCfg.frozeWithCacheReuse(cfg.extraExtensions).Marshal(v) |
||||
} |
||||
|
||||
func (cfg *frozenConfig) UnmarshalFromString(str string, v interface{}) error { |
||||
data := []byte(str) |
||||
iter := cfg.BorrowIterator(data) |
||||
defer cfg.ReturnIterator(iter) |
||||
iter.ReadVal(v) |
||||
c := iter.nextToken() |
||||
if c == 0 { |
||||
if iter.Error == io.EOF { |
||||
return nil |
||||
} |
||||
return iter.Error |
||||
} |
||||
iter.ReportError("Unmarshal", "there are bytes left after unmarshal") |
||||
return iter.Error |
||||
} |
||||
|
||||
func (cfg *frozenConfig) Get(data []byte, path ...interface{}) Any { |
||||
iter := cfg.BorrowIterator(data) |
||||
defer cfg.ReturnIterator(iter) |
||||
return locatePath(iter, path) |
||||
} |
||||
|
||||
func (cfg *frozenConfig) Unmarshal(data []byte, v interface{}) error { |
||||
iter := cfg.BorrowIterator(data) |
||||
defer cfg.ReturnIterator(iter) |
||||
iter.ReadVal(v) |
||||
c := iter.nextToken() |
||||
if c == 0 { |
||||
if iter.Error == io.EOF { |
||||
return nil |
||||
} |
||||
return iter.Error |
||||
} |
||||
iter.ReportError("Unmarshal", "there are bytes left after unmarshal") |
||||
return iter.Error |
||||
} |
||||
|
||||
func (cfg *frozenConfig) NewEncoder(writer io.Writer) *Encoder { |
||||
stream := NewStream(cfg, writer, 512) |
||||
return &Encoder{stream} |
||||
} |
||||
|
||||
func (cfg *frozenConfig) NewDecoder(reader io.Reader) *Decoder { |
||||
iter := Parse(cfg, reader, 512) |
||||
return &Decoder{iter} |
||||
} |
||||
|
||||
func (cfg *frozenConfig) Valid(data []byte) bool { |
||||
iter := cfg.BorrowIterator(data) |
||||
defer cfg.ReturnIterator(iter) |
||||
iter.Skip() |
||||
return iter.Error == nil |
||||
} |
||||
@ -0,0 +1,7 @@ |
||||
| json type \ dest type | bool | int | uint | float |string| |
||||
| --- | --- | --- | --- |--|--| |
||||
| number | positive => true <br/> negative => true <br/> zero => false| 23.2 => 23 <br/> -32.1 => -32| 12.1 => 12 <br/> -12.1 => 0|as normal|same as origin| |
||||
| string | empty string => false <br/> string "0" => false <br/> other strings => true | "123.32" => 123 <br/> "-123.4" => -123 <br/> "123.23xxxw" => 123 <br/> "abcde12" => 0 <br/> "-32.1" => -32| 13.2 => 13 <br/> -1.1 => 0 |12.1 => 12.1 <br/> -12.3 => -12.3<br/> 12.4xxa => 12.4 <br/> +1.1e2 =>110 |same as origin| |
||||
| bool | true => true <br/> false => false| true => 1 <br/> false => 0 | true => 1 <br/> false => 0 |true => 1 <br/>false => 0|true => "true" <br/> false => "false"| |
||||
| object | true | 0 | 0 |0|originnal json| |
||||
| array | empty array => false <br/> nonempty array => true| [] => 0 <br/> [1,2] => 1 | [] => 0 <br/> [1,2] => 1 |[] => 0<br/>[1,2] => 1|original json| |
||||
@ -0,0 +1,11 @@ |
||||
module github.com/json-iterator/go |
||||
|
||||
go 1.12 |
||||
|
||||
require ( |
||||
github.com/davecgh/go-spew v1.1.1 |
||||
github.com/google/gofuzz v1.0.0 |
||||
github.com/modern-go/concurrent v0.0.0-20180228061459-e0a39a4cb421 |
||||
github.com/modern-go/reflect2 v0.0.0-20180701023420-4b7aa43c6742 |
||||
github.com/stretchr/testify v1.3.0 |
||||
) |
||||
@ -0,0 +1,14 @@ |
||||
github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38= |
||||
github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c= |
||||
github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38= |
||||
github.com/google/gofuzz v1.0.0 h1:A8PeW59pxE9IoFRqBp37U+mSNaQoZ46F1f0f863XSXw= |
||||
github.com/google/gofuzz v1.0.0/go.mod h1:dBl0BpW6vV/+mYPU4Po3pmUjxk6FQPldtuIdl/M65Eg= |
||||
github.com/modern-go/concurrent v0.0.0-20180228061459-e0a39a4cb421 h1:ZqeYNhU3OHLH3mGKHDcjJRFFRrJa6eAM5H+CtDdOsPc= |
||||
github.com/modern-go/concurrent v0.0.0-20180228061459-e0a39a4cb421/go.mod h1:6dJC0mAP4ikYIbvyc7fijjWJddQyLn8Ig3JB5CqoB9Q= |
||||
github.com/modern-go/reflect2 v0.0.0-20180701023420-4b7aa43c6742 h1:Esafd1046DLDQ0W1YjYsBW+p8U2u7vzgW2SQVmlNazg= |
||||
github.com/modern-go/reflect2 v0.0.0-20180701023420-4b7aa43c6742/go.mod h1:bx2lNnkwVCuqBIxFjflWJWanXIb3RllmbCylyMrvgv0= |
||||
github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM= |
||||
github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4= |
||||
github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME= |
||||
github.com/stretchr/testify v1.3.0 h1:TivCn/peBQ7UY8ooIcPgZFpTNSz0Q2U6UrFlUfqbe0Q= |
||||
github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI= |
||||
@ -0,0 +1,349 @@ |
||||
package jsoniter |
||||
|
||||
import ( |
||||
"encoding/json" |
||||
"fmt" |
||||
"io" |
||||
) |
||||
|
||||
// ValueType the type for JSON element
|
||||
type ValueType int |
||||
|
||||
const ( |
||||
// InvalidValue invalid JSON element
|
||||
InvalidValue ValueType = iota |
||||
// StringValue JSON element "string"
|
||||
StringValue |
||||
// NumberValue JSON element 100 or 0.10
|
||||
NumberValue |
||||
// NilValue JSON element null
|
||||
NilValue |
||||
// BoolValue JSON element true or false
|
||||
BoolValue |
||||
// ArrayValue JSON element []
|
||||
ArrayValue |
||||
// ObjectValue JSON element {}
|
||||
ObjectValue |
||||
) |
||||
|
||||
var hexDigits []byte |
||||
var valueTypes []ValueType |
||||
|
||||
func init() { |
||||
hexDigits = make([]byte, 256) |
||||
for i := 0; i < len(hexDigits); i++ { |
||||
hexDigits[i] = 255 |
||||
} |
||||
for i := '0'; i <= '9'; i++ { |
||||
hexDigits[i] = byte(i - '0') |
||||
} |
||||
for i := 'a'; i <= 'f'; i++ { |
||||
hexDigits[i] = byte((i - 'a') + 10) |
||||
} |
||||
for i := 'A'; i <= 'F'; i++ { |
||||
hexDigits[i] = byte((i - 'A') + 10) |
||||
} |
||||
valueTypes = make([]ValueType, 256) |
||||
for i := 0; i < len(valueTypes); i++ { |
||||
valueTypes[i] = InvalidValue |
||||
} |
||||
valueTypes['"'] = StringValue |
||||
valueTypes['-'] = NumberValue |
||||
valueTypes['0'] = NumberValue |
||||
valueTypes['1'] = NumberValue |
||||
valueTypes['2'] = NumberValue |
||||
valueTypes['3'] = NumberValue |
||||
valueTypes['4'] = NumberValue |
||||
valueTypes['5'] = NumberValue |
||||
valueTypes['6'] = NumberValue |
||||
valueTypes['7'] = NumberValue |
||||
valueTypes['8'] = NumberValue |
||||
valueTypes['9'] = NumberValue |
||||
valueTypes['t'] = BoolValue |
||||
valueTypes['f'] = BoolValue |
||||
valueTypes['n'] = NilValue |
||||
valueTypes['['] = ArrayValue |
||||
valueTypes['{'] = ObjectValue |
||||
} |
||||
|
||||
// Iterator is a io.Reader like object, with JSON specific read functions.
|
||||
// Error is not returned as return value, but stored as Error member on this iterator instance.
|
||||
type Iterator struct { |
||||
cfg *frozenConfig |
||||
reader io.Reader |
||||
buf []byte |
||||
head int |
||||
tail int |
||||
depth int |
||||
captureStartedAt int |
||||
captured []byte |
||||
Error error |
||||
Attachment interface{} // open for customized decoder
|
||||
} |
||||
|
||||
// NewIterator creates an empty Iterator instance
|
||||
func NewIterator(cfg API) *Iterator { |
||||
return &Iterator{ |
||||
cfg: cfg.(*frozenConfig), |
||||
reader: nil, |
||||
buf: nil, |
||||
head: 0, |
||||
tail: 0, |
||||
depth: 0, |
||||
} |
||||
} |
||||
|
||||
// Parse creates an Iterator instance from io.Reader
|
||||
func Parse(cfg API, reader io.Reader, bufSize int) *Iterator { |
||||
return &Iterator{ |
||||
cfg: cfg.(*frozenConfig), |
||||
reader: reader, |
||||
buf: make([]byte, bufSize), |
||||
head: 0, |
||||
tail: 0, |
||||
depth: 0, |
||||
} |
||||
} |
||||
|
||||
// ParseBytes creates an Iterator instance from byte array
|
||||
func ParseBytes(cfg API, input []byte) *Iterator { |
||||
return &Iterator{ |
||||
cfg: cfg.(*frozenConfig), |
||||
reader: nil, |
||||
buf: input, |
||||
head: 0, |
||||
tail: len(input), |
||||
depth: 0, |
||||
} |
||||
} |
||||
|
||||
// ParseString creates an Iterator instance from string
|
||||
func ParseString(cfg API, input string) *Iterator { |
||||
return ParseBytes(cfg, []byte(input)) |
||||
} |
||||
|
||||
// Pool returns a pool can provide more iterator with same configuration
|
||||
func (iter *Iterator) Pool() IteratorPool { |
||||
return iter.cfg |
||||
} |
||||
|
||||
// Reset reuse iterator instance by specifying another reader
|
||||
func (iter *Iterator) Reset(reader io.Reader) *Iterator { |
||||
iter.reader = reader |
||||
iter.head = 0 |
||||
iter.tail = 0 |
||||
iter.depth = 0 |
||||
return iter |
||||
} |
||||
|
||||
// ResetBytes reuse iterator instance by specifying another byte array as input
|
||||
func (iter *Iterator) ResetBytes(input []byte) *Iterator { |
||||
iter.reader = nil |
||||
iter.buf = input |
||||
iter.head = 0 |
||||
iter.tail = len(input) |
||||
iter.depth = 0 |
||||
return iter |
||||
} |
||||
|
||||
// WhatIsNext gets ValueType of relatively next json element
|
||||
func (iter *Iterator) WhatIsNext() ValueType { |
||||
valueType := valueTypes[iter.nextToken()] |
||||
iter.unreadByte() |
||||
return valueType |
||||
} |
||||
|
||||
func (iter *Iterator) skipWhitespacesWithoutLoadMore() bool { |
||||
for i := iter.head; i < iter.tail; i++ { |
||||
c := iter.buf[i] |
||||
switch c { |
||||
case ' ', '\n', '\t', '\r': |
||||
continue |
||||
} |
||||
iter.head = i |
||||
return false |
||||
} |
||||
return true |
||||
} |
||||
|
||||
func (iter *Iterator) isObjectEnd() bool { |
||||
c := iter.nextToken() |
||||
if c == ',' { |
||||
return false |
||||
} |
||||
if c == '}' { |
||||
return true |
||||
} |
||||
iter.ReportError("isObjectEnd", "object ended prematurely, unexpected char "+string([]byte{c})) |
||||
return true |
||||
} |
||||
|
||||
func (iter *Iterator) nextToken() byte { |
||||
// a variation of skip whitespaces, returning the next non-whitespace token
|
||||
for { |
||||
for i := iter.head; i < iter.tail; i++ { |
||||
c := iter.buf[i] |
||||
switch c { |
||||
case ' ', '\n', '\t', '\r': |
||||
continue |
||||
} |
||||
iter.head = i + 1 |
||||
return c |
||||
} |
||||
if !iter.loadMore() { |
||||
return 0 |
||||
} |
||||
} |
||||
} |
||||
|
||||
// ReportError record a error in iterator instance with current position.
|
||||
func (iter *Iterator) ReportError(operation string, msg string) { |
||||
if iter.Error != nil { |
||||
if iter.Error != io.EOF { |
||||
return |
||||
} |
||||
} |
||||
peekStart := iter.head - 10 |
||||
if peekStart < 0 { |
||||
peekStart = 0 |
||||
} |
||||
peekEnd := iter.head + 10 |
||||
if peekEnd > iter.tail { |
||||
peekEnd = iter.tail |
||||
} |
||||
parsing := string(iter.buf[peekStart:peekEnd]) |
||||
contextStart := iter.head - 50 |
||||
if contextStart < 0 { |
||||
contextStart = 0 |
||||
} |
||||
contextEnd := iter.head + 50 |
||||
if contextEnd > iter.tail { |
||||
contextEnd = iter.tail |
||||
} |
||||
context := string(iter.buf[contextStart:contextEnd]) |
||||
iter.Error = fmt.Errorf("%s: %s, error found in #%v byte of ...|%s|..., bigger context ...|%s|...", |
||||
operation, msg, iter.head-peekStart, parsing, context) |
||||
} |
||||
|
||||
// CurrentBuffer gets current buffer as string for debugging purpose
|
||||
func (iter *Iterator) CurrentBuffer() string { |
||||
peekStart := iter.head - 10 |
||||
if peekStart < 0 { |
||||
peekStart = 0 |
||||
} |
||||
return fmt.Sprintf("parsing #%v byte, around ...|%s|..., whole buffer ...|%s|...", iter.head, |
||||
string(iter.buf[peekStart:iter.head]), string(iter.buf[0:iter.tail])) |
||||
} |
||||
|
||||
func (iter *Iterator) readByte() (ret byte) { |
||||
if iter.head == iter.tail { |
||||
if iter.loadMore() { |
||||
ret = iter.buf[iter.head] |
||||
iter.head++ |
||||
return ret |
||||
} |
||||
return 0 |
||||
} |
||||
ret = iter.buf[iter.head] |
||||
iter.head++ |
||||
return ret |
||||
} |
||||
|
||||
func (iter *Iterator) loadMore() bool { |
||||
if iter.reader == nil { |
||||
if iter.Error == nil { |
||||
iter.head = iter.tail |
||||
iter.Error = io.EOF |
||||
} |
||||
return false |
||||
} |
||||
if iter.captured != nil { |
||||
iter.captured = append(iter.captured, |
||||
iter.buf[iter.captureStartedAt:iter.tail]...) |
||||
iter.captureStartedAt = 0 |
||||
} |
||||
for { |
||||
n, err := iter.reader.Read(iter.buf) |
||||
if n == 0 { |
||||
if err != nil { |
||||
if iter.Error == nil { |
||||
iter.Error = err |
||||
} |
||||
return false |
||||
} |
||||
} else { |
||||
iter.head = 0 |
||||
iter.tail = n |
||||
return true |
||||
} |
||||
} |
||||
} |
||||
|
||||
func (iter *Iterator) unreadByte() { |
||||
if iter.Error != nil { |
||||
return |
||||
} |
||||
iter.head-- |
||||
return |
||||
} |
||||
|
||||
// Read read the next JSON element as generic interface{}.
|
||||
func (iter *Iterator) Read() interface{} { |
||||
valueType := iter.WhatIsNext() |
||||
switch valueType { |
||||
case StringValue: |
||||
return iter.ReadString() |
||||
case NumberValue: |
||||
if iter.cfg.configBeforeFrozen.UseNumber { |
||||
return json.Number(iter.readNumberAsString()) |
||||
} |
||||
return iter.ReadFloat64() |
||||
case NilValue: |
||||
iter.skipFourBytes('n', 'u', 'l', 'l') |
||||
return nil |
||||
case BoolValue: |
||||
return iter.ReadBool() |
||||
case ArrayValue: |
||||
arr := []interface{}{} |
||||
iter.ReadArrayCB(func(iter *Iterator) bool { |
||||
var elem interface{} |
||||
iter.ReadVal(&elem) |
||||
arr = append(arr, elem) |
||||
return true |
||||
}) |
||||
return arr |
||||
case ObjectValue: |
||||
obj := map[string]interface{}{} |
||||
iter.ReadMapCB(func(Iter *Iterator, field string) bool { |
||||
var elem interface{} |
||||
iter.ReadVal(&elem) |
||||
obj[field] = elem |
||||
return true |
||||
}) |
||||
return obj |
||||
default: |
||||
iter.ReportError("Read", fmt.Sprintf("unexpected value type: %v", valueType)) |
||||
return nil |
||||
} |
||||
} |
||||
|
||||
// limit maximum depth of nesting, as allowed by https://tools.ietf.org/html/rfc7159#section-9
|
||||
const maxDepth = 10000 |
||||
|
||||
func (iter *Iterator) incrementDepth() (success bool) { |
||||
iter.depth++ |
||||
if iter.depth <= maxDepth { |
||||
return true |
||||
} |
||||
iter.ReportError("incrementDepth", "exceeded max depth") |
||||
return false |
||||
} |
||||
|
||||
func (iter *Iterator) decrementDepth() (success bool) { |
||||
iter.depth-- |
||||
if iter.depth >= 0 { |
||||
return true |
||||
} |
||||
iter.ReportError("decrementDepth", "unexpected negative nesting") |
||||
return false |
||||
} |
||||
@ -0,0 +1,64 @@ |
||||
package jsoniter |
||||
|
||||
// ReadArray read array element, tells if the array has more element to read.
|
||||
func (iter *Iterator) ReadArray() (ret bool) { |
||||
c := iter.nextToken() |
||||
switch c { |
||||
case 'n': |
||||
iter.skipThreeBytes('u', 'l', 'l') |
||||
return false // null
|
||||
case '[': |
||||
c = iter.nextToken() |
||||
if c != ']' { |
||||
iter.unreadByte() |
||||
return true |
||||
} |
||||
return false |
||||
case ']': |
||||
return false |
||||
case ',': |
||||
return true |
||||
default: |
||||
iter.ReportError("ReadArray", "expect [ or , or ] or n, but found "+string([]byte{c})) |
||||
return |
||||
} |
||||
} |
||||
|
||||
// ReadArrayCB read array with callback
|
||||
func (iter *Iterator) ReadArrayCB(callback func(*Iterator) bool) (ret bool) { |
||||
c := iter.nextToken() |
||||
if c == '[' { |
||||
if !iter.incrementDepth() { |
||||
return false |
||||
} |
||||
c = iter.nextToken() |
||||
if c != ']' { |
||||
iter.unreadByte() |
||||
if !callback(iter) { |
||||
iter.decrementDepth() |
||||
return false |
||||
} |
||||
c = iter.nextToken() |
||||
for c == ',' { |
||||
if !callback(iter) { |
||||
iter.decrementDepth() |
||||
return false |
||||
} |
||||
c = iter.nextToken() |
||||
} |
||||
if c != ']' { |
||||
iter.ReportError("ReadArrayCB", "expect ] in the end, but found "+string([]byte{c})) |
||||
iter.decrementDepth() |
||||
return false |
||||
} |
||||
return iter.decrementDepth() |
||||
} |
||||
return iter.decrementDepth() |
||||
} |
||||
if c == 'n' { |
||||
iter.skipThreeBytes('u', 'l', 'l') |
||||
return true // null
|
||||
} |
||||
iter.ReportError("ReadArrayCB", "expect [ or n, but found "+string([]byte{c})) |
||||
return false |
||||
} |
||||
@ -0,0 +1,339 @@ |
||||
package jsoniter |
||||
|
||||
import ( |
||||
"encoding/json" |
||||
"io" |
||||
"math/big" |
||||
"strconv" |
||||
"strings" |
||||
"unsafe" |
||||
) |
||||
|
||||
var floatDigits []int8 |
||||
|
||||
const invalidCharForNumber = int8(-1) |
||||
const endOfNumber = int8(-2) |
||||
const dotInNumber = int8(-3) |
||||
|
||||
func init() { |
||||
floatDigits = make([]int8, 256) |
||||
for i := 0; i < len(floatDigits); i++ { |
||||
floatDigits[i] = invalidCharForNumber |
||||
} |
||||
for i := int8('0'); i <= int8('9'); i++ { |
||||
floatDigits[i] = i - int8('0') |
||||
} |
||||
floatDigits[','] = endOfNumber |
||||
floatDigits[']'] = endOfNumber |
||||
floatDigits['}'] = endOfNumber |
||||
floatDigits[' '] = endOfNumber |
||||
floatDigits['\t'] = endOfNumber |
||||
floatDigits['\n'] = endOfNumber |
||||
floatDigits['.'] = dotInNumber |
||||
} |
||||
|
||||
// ReadBigFloat read big.Float
|
||||
func (iter *Iterator) ReadBigFloat() (ret *big.Float) { |
||||
str := iter.readNumberAsString() |
||||
if iter.Error != nil && iter.Error != io.EOF { |
||||
return nil |
||||
} |
||||
prec := 64 |
||||
if len(str) > prec { |
||||
prec = len(str) |
||||
} |
||||
val, _, err := big.ParseFloat(str, 10, uint(prec), big.ToZero) |
||||
if err != nil { |
||||
iter.Error = err |
||||
return nil |
||||
} |
||||
return val |
||||
} |
||||
|
||||
// ReadBigInt read big.Int
|
||||
func (iter *Iterator) ReadBigInt() (ret *big.Int) { |
||||
str := iter.readNumberAsString() |
||||
if iter.Error != nil && iter.Error != io.EOF { |
||||
return nil |
||||
} |
||||
ret = big.NewInt(0) |
||||
var success bool |
||||
ret, success = ret.SetString(str, 10) |
||||
if !success { |
||||
iter.ReportError("ReadBigInt", "invalid big int") |
||||
return nil |
||||
} |
||||
return ret |
||||
} |
||||
|
||||
//ReadFloat32 read float32
|
||||
func (iter *Iterator) ReadFloat32() (ret float32) { |
||||
c := iter.nextToken() |
||||
if c == '-' { |
||||
return -iter.readPositiveFloat32() |
||||
} |
||||
iter.unreadByte() |
||||
return iter.readPositiveFloat32() |
||||
} |
||||
|
||||
func (iter *Iterator) readPositiveFloat32() (ret float32) { |
||||
i := iter.head |
||||
// first char
|
||||
if i == iter.tail { |
||||
return iter.readFloat32SlowPath() |
||||
} |
||||
c := iter.buf[i] |
||||
i++ |
||||
ind := floatDigits[c] |
||||
switch ind { |
||||
case invalidCharForNumber: |
||||
return iter.readFloat32SlowPath() |
||||
case endOfNumber: |
||||
iter.ReportError("readFloat32", "empty number") |
||||
return |
||||
case dotInNumber: |
||||
iter.ReportError("readFloat32", "leading dot is invalid") |
||||
return |
||||
case 0: |
||||
if i == iter.tail { |
||||
return iter.readFloat32SlowPath() |
||||
} |
||||
c = iter.buf[i] |
||||
switch c { |
||||
case '0', '1', '2', '3', '4', '5', '6', '7', '8', '9': |
||||
iter.ReportError("readFloat32", "leading zero is invalid") |
||||
return |
||||
} |
||||
} |
||||
value := uint64(ind) |
||||
// chars before dot
|
||||
non_decimal_loop: |
||||
for ; i < iter.tail; i++ { |
||||
c = iter.buf[i] |
||||
ind := floatDigits[c] |
||||
switch ind { |
||||
case invalidCharForNumber: |
||||
return iter.readFloat32SlowPath() |
||||
case endOfNumber: |
||||
iter.head = i |
||||
return float32(value) |
||||
case dotInNumber: |
||||
break non_decimal_loop |
||||
} |
||||
if value > uint64SafeToMultiple10 { |
||||
return iter.readFloat32SlowPath() |
||||
} |
||||
value = (value << 3) + (value << 1) + uint64(ind) // value = value * 10 + ind;
|
||||
} |
||||
// chars after dot
|
||||
if c == '.' { |
||||
i++ |
||||
decimalPlaces := 0 |
||||
if i == iter.tail { |
||||
return iter.readFloat32SlowPath() |
||||
} |
||||
for ; i < iter.tail; i++ { |
||||
c = iter.buf[i] |
||||
ind := floatDigits[c] |
||||
switch ind { |
||||
case endOfNumber: |
||||
if decimalPlaces > 0 && decimalPlaces < len(pow10) { |
||||
iter.head = i |
||||
return float32(float64(value) / float64(pow10[decimalPlaces])) |
||||
} |
||||
// too many decimal places
|
||||
return iter.readFloat32SlowPath() |
||||
case invalidCharForNumber, dotInNumber: |
||||
return iter.readFloat32SlowPath() |
||||
} |
||||
decimalPlaces++ |
||||
if value > uint64SafeToMultiple10 { |
||||
return iter.readFloat32SlowPath() |
||||
} |
||||
value = (value << 3) + (value << 1) + uint64(ind) |
||||
} |
||||
} |
||||
return iter.readFloat32SlowPath() |
||||
} |
||||
|
||||
func (iter *Iterator) readNumberAsString() (ret string) { |
||||
strBuf := [16]byte{} |
||||
str := strBuf[0:0] |
||||
load_loop: |
||||
for { |
||||
for i := iter.head; i < iter.tail; i++ { |
||||
c := iter.buf[i] |
||||
switch c { |
||||
case '+', '-', '.', 'e', 'E', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9': |
||||
str = append(str, c) |
||||
continue |
||||
default: |
||||
iter.head = i |
||||
break load_loop |
||||
} |
||||
} |
||||
if !iter.loadMore() { |
||||
break |
||||
} |
||||
} |
||||
if iter.Error != nil && iter.Error != io.EOF { |
||||
return |
||||
} |
||||
if len(str) == 0 { |
||||
iter.ReportError("readNumberAsString", "invalid number") |
||||
} |
||||
return *(*string)(unsafe.Pointer(&str)) |
||||
} |
||||
|
||||
func (iter *Iterator) readFloat32SlowPath() (ret float32) { |
||||
str := iter.readNumberAsString() |
||||
if iter.Error != nil && iter.Error != io.EOF { |
||||
return |
||||
} |
||||
errMsg := validateFloat(str) |
||||
if errMsg != "" { |
||||
iter.ReportError("readFloat32SlowPath", errMsg) |
||||
return |
||||
} |
||||
val, err := strconv.ParseFloat(str, 32) |
||||
if err != nil { |
||||
iter.Error = err |
||||
return |
||||
} |
||||
return float32(val) |
||||
} |
||||
|
||||
// ReadFloat64 read float64
|
||||
func (iter *Iterator) ReadFloat64() (ret float64) { |
||||
c := iter.nextToken() |
||||
if c == '-' { |
||||
return -iter.readPositiveFloat64() |
||||
} |
||||
iter.unreadByte() |
||||
return iter.readPositiveFloat64() |
||||
} |
||||
|
||||
func (iter *Iterator) readPositiveFloat64() (ret float64) { |
||||
i := iter.head |
||||
// first char
|
||||
if i == iter.tail { |
||||
return iter.readFloat64SlowPath() |
||||
} |
||||
c := iter.buf[i] |
||||
i++ |
||||
ind := floatDigits[c] |
||||
switch ind { |
||||
case invalidCharForNumber: |
||||
return iter.readFloat64SlowPath() |
||||
case endOfNumber: |
||||
iter.ReportError("readFloat64", "empty number") |
||||
return |
||||
case dotInNumber: |
||||
iter.ReportError("readFloat64", "leading dot is invalid") |
||||
return |
||||
case 0: |
||||
if i == iter.tail { |
||||
return iter.readFloat64SlowPath() |
||||
} |
||||
c = iter.buf[i] |
||||
switch c { |
||||
case '0', '1', '2', '3', '4', '5', '6', '7', '8', '9': |
||||
iter.ReportError("readFloat64", "leading zero is invalid") |
||||
return |
||||
} |
||||
} |
||||
value := uint64(ind) |
||||
// chars before dot
|
||||
non_decimal_loop: |
||||
for ; i < iter.tail; i++ { |
||||
c = iter.buf[i] |
||||
ind := floatDigits[c] |
||||
switch ind { |
||||
case invalidCharForNumber: |
||||
return iter.readFloat64SlowPath() |
||||
case endOfNumber: |
||||
iter.head = i |
||||
return float64(value) |
||||
case dotInNumber: |
||||
break non_decimal_loop |
||||
} |
||||
if value > uint64SafeToMultiple10 { |
||||
return iter.readFloat64SlowPath() |
||||
} |
||||
value = (value << 3) + (value << 1) + uint64(ind) // value = value * 10 + ind;
|
||||
} |
||||
// chars after dot
|
||||
if c == '.' { |
||||
i++ |
||||
decimalPlaces := 0 |
||||
if i == iter.tail { |
||||
return iter.readFloat64SlowPath() |
||||
} |
||||
for ; i < iter.tail; i++ { |
||||
c = iter.buf[i] |
||||
ind := floatDigits[c] |
||||
switch ind { |
||||
case endOfNumber: |
||||
if decimalPlaces > 0 && decimalPlaces < len(pow10) { |
||||
iter.head = i |
||||
return float64(value) / float64(pow10[decimalPlaces]) |
||||
} |
||||
// too many decimal places
|
||||
return iter.readFloat64SlowPath() |
||||
case invalidCharForNumber, dotInNumber: |
||||
return iter.readFloat64SlowPath() |
||||
} |
||||
decimalPlaces++ |
||||
if value > uint64SafeToMultiple10 { |
||||
return iter.readFloat64SlowPath() |
||||
} |
||||
value = (value << 3) + (value << 1) + uint64(ind) |
||||
} |
||||
} |
||||
return iter.readFloat64SlowPath() |
||||
} |
||||
|
||||
func (iter *Iterator) readFloat64SlowPath() (ret float64) { |
||||
str := iter.readNumberAsString() |
||||
if iter.Error != nil && iter.Error != io.EOF { |
||||
return |
||||
} |
||||
errMsg := validateFloat(str) |
||||
if errMsg != "" { |
||||
iter.ReportError("readFloat64SlowPath", errMsg) |
||||
return |
||||
} |
||||
val, err := strconv.ParseFloat(str, 64) |
||||
if err != nil { |
||||
iter.Error = err |
||||
return |
||||
} |
||||
return val |
||||
} |
||||
|
||||
func validateFloat(str string) string { |
||||
// strconv.ParseFloat is not validating `1.` or `1.e1`
|
||||
if len(str) == 0 { |
||||
return "empty number" |
||||
} |
||||
if str[0] == '-' { |
||||
return "-- is not valid" |
||||
} |
||||
dotPos := strings.IndexByte(str, '.') |
||||
if dotPos != -1 { |
||||
if dotPos == len(str)-1 { |
||||
return "dot can not be last character" |
||||
} |
||||
switch str[dotPos+1] { |
||||
case '0', '1', '2', '3', '4', '5', '6', '7', '8', '9': |
||||
default: |
||||
return "missing digit after dot" |
||||
} |
||||
} |
||||
return "" |
||||
} |
||||
|
||||
// ReadNumber read json.Number
|
||||
func (iter *Iterator) ReadNumber() (ret json.Number) { |
||||
return json.Number(iter.readNumberAsString()) |
||||
} |
||||
@ -0,0 +1,345 @@ |
||||
package jsoniter |
||||
|
||||
import ( |
||||
"math" |
||||
"strconv" |
||||
) |
||||
|
||||
var intDigits []int8 |
||||
|
||||
const uint32SafeToMultiply10 = uint32(0xffffffff)/10 - 1 |
||||
const uint64SafeToMultiple10 = uint64(0xffffffffffffffff)/10 - 1 |
||||
|
||||
func init() { |
||||
intDigits = make([]int8, 256) |
||||
for i := 0; i < len(intDigits); i++ { |
||||
intDigits[i] = invalidCharForNumber |
||||
} |
||||
for i := int8('0'); i <= int8('9'); i++ { |
||||
intDigits[i] = i - int8('0') |
||||
} |
||||
} |
||||
|
||||
// ReadUint read uint
|
||||
func (iter *Iterator) ReadUint() uint { |
||||
if strconv.IntSize == 32 { |
||||
return uint(iter.ReadUint32()) |
||||
} |
||||
return uint(iter.ReadUint64()) |
||||
} |
||||
|
||||
// ReadInt read int
|
||||
func (iter *Iterator) ReadInt() int { |
||||
if strconv.IntSize == 32 { |
||||
return int(iter.ReadInt32()) |
||||
} |
||||
return int(iter.ReadInt64()) |
||||
} |
||||
|
||||
// ReadInt8 read int8
|
||||
func (iter *Iterator) ReadInt8() (ret int8) { |
||||
c := iter.nextToken() |
||||
if c == '-' { |
||||
val := iter.readUint32(iter.readByte()) |
||||
if val > math.MaxInt8+1 { |
||||
iter.ReportError("ReadInt8", "overflow: "+strconv.FormatInt(int64(val), 10)) |
||||
return |
||||
} |
||||
return -int8(val) |
||||
} |
||||
val := iter.readUint32(c) |
||||
if val > math.MaxInt8 { |
||||
iter.ReportError("ReadInt8", "overflow: "+strconv.FormatInt(int64(val), 10)) |
||||
return |
||||
} |
||||
return int8(val) |
||||
} |
||||
|
||||
// ReadUint8 read uint8
|
||||
func (iter *Iterator) ReadUint8() (ret uint8) { |
||||
val := iter.readUint32(iter.nextToken()) |
||||
if val > math.MaxUint8 { |
||||
iter.ReportError("ReadUint8", "overflow: "+strconv.FormatInt(int64(val), 10)) |
||||
return |
||||
} |
||||
return uint8(val) |
||||
} |
||||
|
||||
// ReadInt16 read int16
|
||||
func (iter *Iterator) ReadInt16() (ret int16) { |
||||
c := iter.nextToken() |
||||
if c == '-' { |
||||
val := iter.readUint32(iter.readByte()) |
||||
if val > math.MaxInt16+1 { |
||||
iter.ReportError("ReadInt16", "overflow: "+strconv.FormatInt(int64(val), 10)) |
||||
return |
||||
} |
||||
return -int16(val) |
||||
} |
||||
val := iter.readUint32(c) |
||||
if val > math.MaxInt16 { |
||||
iter.ReportError("ReadInt16", "overflow: "+strconv.FormatInt(int64(val), 10)) |
||||
return |
||||
} |
||||
return int16(val) |
||||
} |
||||
|
||||
// ReadUint16 read uint16
|
||||
func (iter *Iterator) ReadUint16() (ret uint16) { |
||||
val := iter.readUint32(iter.nextToken()) |
||||
if val > math.MaxUint16 { |
||||
iter.ReportError("ReadUint16", "overflow: "+strconv.FormatInt(int64(val), 10)) |
||||
return |
||||
} |
||||
return uint16(val) |
||||
} |
||||
|
||||
// ReadInt32 read int32
|
||||
func (iter *Iterator) ReadInt32() (ret int32) { |
||||
c := iter.nextToken() |
||||
if c == '-' { |
||||
val := iter.readUint32(iter.readByte()) |
||||
if val > math.MaxInt32+1 { |
||||
iter.ReportError("ReadInt32", "overflow: "+strconv.FormatInt(int64(val), 10)) |
||||
return |
||||
} |
||||
return -int32(val) |
||||
} |
||||
val := iter.readUint32(c) |
||||
if val > math.MaxInt32 { |
||||
iter.ReportError("ReadInt32", "overflow: "+strconv.FormatInt(int64(val), 10)) |
||||
return |
||||
} |
||||
return int32(val) |
||||
} |
||||
|
||||
// ReadUint32 read uint32
|
||||
func (iter *Iterator) ReadUint32() (ret uint32) { |
||||
return iter.readUint32(iter.nextToken()) |
||||
} |
||||
|
||||
func (iter *Iterator) readUint32(c byte) (ret uint32) { |
||||
ind := intDigits[c] |
||||
if ind == 0 { |
||||
iter.assertInteger() |
||||
return 0 // single zero
|
||||
} |
||||
if ind == invalidCharForNumber { |
||||
iter.ReportError("readUint32", "unexpected character: "+string([]byte{byte(ind)})) |
||||
return |
||||
} |
||||
value := uint32(ind) |
||||
if iter.tail-iter.head > 10 { |
||||
i := iter.head |
||||
ind2 := intDigits[iter.buf[i]] |
||||
if ind2 == invalidCharForNumber { |
||||
iter.head = i |
||||
iter.assertInteger() |
||||
return value |
||||
} |
||||
i++ |
||||
ind3 := intDigits[iter.buf[i]] |
||||
if ind3 == invalidCharForNumber { |
||||
iter.head = i |
||||
iter.assertInteger() |
||||
return value*10 + uint32(ind2) |
||||
} |
||||
//iter.head = i + 1
|
||||
//value = value * 100 + uint32(ind2) * 10 + uint32(ind3)
|
||||
i++ |
||||
ind4 := intDigits[iter.buf[i]] |
||||
if ind4 == invalidCharForNumber { |
||||
iter.head = i |
||||
iter.assertInteger() |
||||
return value*100 + uint32(ind2)*10 + uint32(ind3) |
||||
} |
||||
i++ |
||||
ind5 := intDigits[iter.buf[i]] |
||||
if ind5 == invalidCharForNumber { |
||||
iter.head = i |
||||
iter.assertInteger() |
||||
return value*1000 + uint32(ind2)*100 + uint32(ind3)*10 + uint32(ind4) |
||||
} |
||||
i++ |
||||
ind6 := intDigits[iter.buf[i]] |
||||
if ind6 == invalidCharForNumber { |
||||
iter.head = i |
||||
iter.assertInteger() |
||||
return value*10000 + uint32(ind2)*1000 + uint32(ind3)*100 + uint32(ind4)*10 + uint32(ind5) |
||||
} |
||||
i++ |
||||
ind7 := intDigits[iter.buf[i]] |
||||
if ind7 == invalidCharForNumber { |
||||
iter.head = i |
||||
iter.assertInteger() |
||||
return value*100000 + uint32(ind2)*10000 + uint32(ind3)*1000 + uint32(ind4)*100 + uint32(ind5)*10 + uint32(ind6) |
||||
} |
||||
i++ |
||||
ind8 := intDigits[iter.buf[i]] |
||||
if ind8 == invalidCharForNumber { |
||||
iter.head = i |
||||
iter.assertInteger() |
||||
return value*1000000 + uint32(ind2)*100000 + uint32(ind3)*10000 + uint32(ind4)*1000 + uint32(ind5)*100 + uint32(ind6)*10 + uint32(ind7) |
||||
} |
||||
i++ |
||||
ind9 := intDigits[iter.buf[i]] |
||||
value = value*10000000 + uint32(ind2)*1000000 + uint32(ind3)*100000 + uint32(ind4)*10000 + uint32(ind5)*1000 + uint32(ind6)*100 + uint32(ind7)*10 + uint32(ind8) |
||||
iter.head = i |
||||
if ind9 == invalidCharForNumber { |
||||
iter.assertInteger() |
||||
return value |
||||
} |
||||
} |
||||
for { |
||||
for i := iter.head; i < iter.tail; i++ { |
||||
ind = intDigits[iter.buf[i]] |
||||
if ind == invalidCharForNumber { |
||||
iter.head = i |
||||
iter.assertInteger() |
||||
return value |
||||
} |
||||
if value > uint32SafeToMultiply10 { |
||||
value2 := (value << 3) + (value << 1) + uint32(ind) |
||||
if value2 < value { |
||||
iter.ReportError("readUint32", "overflow") |
||||
return |
||||
} |
||||
value = value2 |
||||
continue |
||||
} |
||||
value = (value << 3) + (value << 1) + uint32(ind) |
||||
} |
||||
if !iter.loadMore() { |
||||
iter.assertInteger() |
||||
return value |
||||
} |
||||
} |
||||
} |
||||
|
||||
// ReadInt64 read int64
|
||||
func (iter *Iterator) ReadInt64() (ret int64) { |
||||
c := iter.nextToken() |
||||
if c == '-' { |
||||
val := iter.readUint64(iter.readByte()) |
||||
if val > math.MaxInt64+1 { |
||||
iter.ReportError("ReadInt64", "overflow: "+strconv.FormatUint(uint64(val), 10)) |
||||
return |
||||
} |
||||
return -int64(val) |
||||
} |
||||
val := iter.readUint64(c) |
||||
if val > math.MaxInt64 { |
||||
iter.ReportError("ReadInt64", "overflow: "+strconv.FormatUint(uint64(val), 10)) |
||||
return |
||||
} |
||||
return int64(val) |
||||
} |
||||
|
||||
// ReadUint64 read uint64
|
||||
func (iter *Iterator) ReadUint64() uint64 { |
||||
return iter.readUint64(iter.nextToken()) |
||||
} |
||||
|
||||
func (iter *Iterator) readUint64(c byte) (ret uint64) { |
||||
ind := intDigits[c] |
||||
if ind == 0 { |
||||
iter.assertInteger() |
||||
return 0 // single zero
|
||||
} |
||||
if ind == invalidCharForNumber { |
||||
iter.ReportError("readUint64", "unexpected character: "+string([]byte{byte(ind)})) |
||||
return |
||||
} |
||||
value := uint64(ind) |
||||
if iter.tail-iter.head > 10 { |
||||
i := iter.head |
||||
ind2 := intDigits[iter.buf[i]] |
||||
if ind2 == invalidCharForNumber { |
||||
iter.head = i |
||||
iter.assertInteger() |
||||
return value |
||||
} |
||||
i++ |
||||
ind3 := intDigits[iter.buf[i]] |
||||
if ind3 == invalidCharForNumber { |
||||
iter.head = i |
||||
iter.assertInteger() |
||||
return value*10 + uint64(ind2) |
||||
} |
||||
//iter.head = i + 1
|
||||
//value = value * 100 + uint32(ind2) * 10 + uint32(ind3)
|
||||
i++ |
||||
ind4 := intDigits[iter.buf[i]] |
||||
if ind4 == invalidCharForNumber { |
||||
iter.head = i |
||||
iter.assertInteger() |
||||
return value*100 + uint64(ind2)*10 + uint64(ind3) |
||||
} |
||||
i++ |
||||
ind5 := intDigits[iter.buf[i]] |
||||
if ind5 == invalidCharForNumber { |
||||
iter.head = i |
||||
iter.assertInteger() |
||||
return value*1000 + uint64(ind2)*100 + uint64(ind3)*10 + uint64(ind4) |
||||
} |
||||
i++ |
||||
ind6 := intDigits[iter.buf[i]] |
||||
if ind6 == invalidCharForNumber { |
||||
iter.head = i |
||||
iter.assertInteger() |
||||
return value*10000 + uint64(ind2)*1000 + uint64(ind3)*100 + uint64(ind4)*10 + uint64(ind5) |
||||
} |
||||
i++ |
||||
ind7 := intDigits[iter.buf[i]] |
||||
if ind7 == invalidCharForNumber { |
||||
iter.head = i |
||||
iter.assertInteger() |
||||
return value*100000 + uint64(ind2)*10000 + uint64(ind3)*1000 + uint64(ind4)*100 + uint64(ind5)*10 + uint64(ind6) |
||||
} |
||||
i++ |
||||
ind8 := intDigits[iter.buf[i]] |
||||
if ind8 == invalidCharForNumber { |
||||
iter.head = i |
||||
iter.assertInteger() |
||||
return value*1000000 + uint64(ind2)*100000 + uint64(ind3)*10000 + uint64(ind4)*1000 + uint64(ind5)*100 + uint64(ind6)*10 + uint64(ind7) |
||||
} |
||||
i++ |
||||
ind9 := intDigits[iter.buf[i]] |
||||
value = value*10000000 + uint64(ind2)*1000000 + uint64(ind3)*100000 + uint64(ind4)*10000 + uint64(ind5)*1000 + uint64(ind6)*100 + uint64(ind7)*10 + uint64(ind8) |
||||
iter.head = i |
||||
if ind9 == invalidCharForNumber { |
||||
iter.assertInteger() |
||||
return value |
||||
} |
||||
} |
||||
for { |
||||
for i := iter.head; i < iter.tail; i++ { |
||||
ind = intDigits[iter.buf[i]] |
||||
if ind == invalidCharForNumber { |
||||
iter.head = i |
||||
iter.assertInteger() |
||||
return value |
||||
} |
||||
if value > uint64SafeToMultiple10 { |
||||
value2 := (value << 3) + (value << 1) + uint64(ind) |
||||
if value2 < value { |
||||
iter.ReportError("readUint64", "overflow") |
||||
return |
||||
} |
||||
value = value2 |
||||
continue |
||||
} |
||||
value = (value << 3) + (value << 1) + uint64(ind) |
||||
} |
||||
if !iter.loadMore() { |
||||
iter.assertInteger() |
||||
return value |
||||
} |
||||
} |
||||
} |
||||
|
||||
func (iter *Iterator) assertInteger() { |
||||
if iter.head < len(iter.buf) && iter.buf[iter.head] == '.' { |
||||
iter.ReportError("assertInteger", "can not decode float as int") |
||||
} |
||||
} |
||||
@ -0,0 +1,267 @@ |
||||
package jsoniter |
||||
|
||||
import ( |
||||
"fmt" |
||||
"strings" |
||||
) |
||||
|
||||
// ReadObject read one field from object.
|
||||
// If object ended, returns empty string.
|
||||
// Otherwise, returns the field name.
|
||||
func (iter *Iterator) ReadObject() (ret string) { |
||||
c := iter.nextToken() |
||||
switch c { |
||||
case 'n': |
||||
iter.skipThreeBytes('u', 'l', 'l') |
||||
return "" // null
|
||||
case '{': |
||||
c = iter.nextToken() |
||||
if c == '"' { |
||||
iter.unreadByte() |
||||
field := iter.ReadString() |
||||
c = iter.nextToken() |
||||
if c != ':' { |
||||
iter.ReportError("ReadObject", "expect : after object field, but found "+string([]byte{c})) |
||||
} |
||||
return field |
||||
} |
||||
if c == '}' { |
||||
return "" // end of object
|
||||
} |
||||
iter.ReportError("ReadObject", `expect " after {, but found `+string([]byte{c})) |
||||
return |
||||
case ',': |
||||
field := iter.ReadString() |
||||
c = iter.nextToken() |
||||
if c != ':' { |
||||
iter.ReportError("ReadObject", "expect : after object field, but found "+string([]byte{c})) |
||||
} |
||||
return field |
||||
case '}': |
||||
return "" // end of object
|
||||
default: |
||||
iter.ReportError("ReadObject", fmt.Sprintf(`expect { or , or } or n, but found %s`, string([]byte{c}))) |
||||
return |
||||
} |
||||
} |
||||
|
||||
// CaseInsensitive
|
||||
func (iter *Iterator) readFieldHash() int64 { |
||||
hash := int64(0x811c9dc5) |
||||
c := iter.nextToken() |
||||
if c != '"' { |
||||
iter.ReportError("readFieldHash", `expect ", but found `+string([]byte{c})) |
||||
return 0 |
||||
} |
||||
for { |
||||
for i := iter.head; i < iter.tail; i++ { |
||||
// require ascii string and no escape
|
||||
b := iter.buf[i] |
||||
if b == '\\' { |
||||
iter.head = i |
||||
for _, b := range iter.readStringSlowPath() { |
||||
if 'A' <= b && b <= 'Z' && !iter.cfg.caseSensitive { |
||||
b += 'a' - 'A' |
||||
} |
||||
hash ^= int64(b) |
||||
hash *= 0x1000193 |
||||
} |
||||
c = iter.nextToken() |
||||
if c != ':' { |
||||
iter.ReportError("readFieldHash", `expect :, but found `+string([]byte{c})) |
||||
return 0 |
||||
} |
||||
return hash |
||||
} |
||||
if b == '"' { |
||||
iter.head = i + 1 |
||||
c = iter.nextToken() |
||||
if c != ':' { |
||||
iter.ReportError("readFieldHash", `expect :, but found `+string([]byte{c})) |
||||
return 0 |
||||
} |
||||
return hash |
||||
} |
||||
if 'A' <= b && b <= 'Z' && !iter.cfg.caseSensitive { |
||||
b += 'a' - 'A' |
||||
} |
||||
hash ^= int64(b) |
||||
hash *= 0x1000193 |
||||
} |
||||
if !iter.loadMore() { |
||||
iter.ReportError("readFieldHash", `incomplete field name`) |
||||
return 0 |
||||
} |
||||
} |
||||
} |
||||
|
||||
func calcHash(str string, caseSensitive bool) int64 { |
||||
if !caseSensitive { |
||||
str = strings.ToLower(str) |
||||
} |
||||
hash := int64(0x811c9dc5) |
||||
for _, b := range []byte(str) { |
||||
hash ^= int64(b) |
||||
hash *= 0x1000193 |
||||
} |
||||
return int64(hash) |
||||
} |
||||
|
||||
// ReadObjectCB read object with callback, the key is ascii only and field name not copied
|
||||
func (iter *Iterator) ReadObjectCB(callback func(*Iterator, string) bool) bool { |
||||
c := iter.nextToken() |
||||
var field string |
||||
if c == '{' { |
||||
if !iter.incrementDepth() { |
||||
return false |
||||
} |
||||
c = iter.nextToken() |
||||
if c == '"' { |
||||
iter.unreadByte() |
||||
field = iter.ReadString() |
||||
c = iter.nextToken() |
||||
if c != ':' { |
||||
iter.ReportError("ReadObject", "expect : after object field, but found "+string([]byte{c})) |
||||
} |
||||
if !callback(iter, field) { |
||||
iter.decrementDepth() |
||||
return false |
||||
} |
||||
c = iter.nextToken() |
||||
for c == ',' { |
||||
field = iter.ReadString() |
||||
c = iter.nextToken() |
||||
if c != ':' { |
||||
iter.ReportError("ReadObject", "expect : after object field, but found "+string([]byte{c})) |
||||
} |
||||
if !callback(iter, field) { |
||||
iter.decrementDepth() |
||||
return false |
||||
} |
||||
c = iter.nextToken() |
||||
} |
||||
if c != '}' { |
||||
iter.ReportError("ReadObjectCB", `object not ended with }`) |
||||
iter.decrementDepth() |
||||
return false |
||||
} |
||||
return iter.decrementDepth() |
||||
} |
||||
if c == '}' { |
||||
return iter.decrementDepth() |
||||
} |
||||
iter.ReportError("ReadObjectCB", `expect " after {, but found `+string([]byte{c})) |
||||
iter.decrementDepth() |
||||
return false |
||||
} |
||||
if c == 'n' { |
||||
iter.skipThreeBytes('u', 'l', 'l') |
||||
return true // null
|
||||
} |
||||
iter.ReportError("ReadObjectCB", `expect { or n, but found `+string([]byte{c})) |
||||
return false |
||||
} |
||||
|
||||
// ReadMapCB read map with callback, the key can be any string
|
||||
func (iter *Iterator) ReadMapCB(callback func(*Iterator, string) bool) bool { |
||||
c := iter.nextToken() |
||||
if c == '{' { |
||||
if !iter.incrementDepth() { |
||||
return false |
||||
} |
||||
c = iter.nextToken() |
||||
if c == '"' { |
||||
iter.unreadByte() |
||||
field := iter.ReadString() |
||||
if iter.nextToken() != ':' { |
||||
iter.ReportError("ReadMapCB", "expect : after object field, but found "+string([]byte{c})) |
||||
iter.decrementDepth() |
||||
return false |
||||
} |
||||
if !callback(iter, field) { |
||||
iter.decrementDepth() |
||||
return false |
||||
} |
||||
c = iter.nextToken() |
||||
for c == ',' { |
||||
field = iter.ReadString() |
||||
if iter.nextToken() != ':' { |
||||
iter.ReportError("ReadMapCB", "expect : after object field, but found "+string([]byte{c})) |
||||
iter.decrementDepth() |
||||
return false |
||||
} |
||||
if !callback(iter, field) { |
||||
iter.decrementDepth() |
||||
return false |
||||
} |
||||
c = iter.nextToken() |
||||
} |
||||
if c != '}' { |
||||
iter.ReportError("ReadMapCB", `object not ended with }`) |
||||
iter.decrementDepth() |
||||
return false |
||||
} |
||||
return iter.decrementDepth() |
||||
} |
||||
if c == '}' { |
||||
return iter.decrementDepth() |
||||
} |
||||
iter.ReportError("ReadMapCB", `expect " after {, but found `+string([]byte{c})) |
||||
iter.decrementDepth() |
||||
return false |
||||
} |
||||
if c == 'n' { |
||||
iter.skipThreeBytes('u', 'l', 'l') |
||||
return true // null
|
||||
} |
||||
iter.ReportError("ReadMapCB", `expect { or n, but found `+string([]byte{c})) |
||||
return false |
||||
} |
||||
|
||||
func (iter *Iterator) readObjectStart() bool { |
||||
c := iter.nextToken() |
||||
if c == '{' { |
||||
c = iter.nextToken() |
||||
if c == '}' { |
||||
return false |
||||
} |
||||
iter.unreadByte() |
||||
return true |
||||
} else if c == 'n' { |
||||
iter.skipThreeBytes('u', 'l', 'l') |
||||
return false |
||||
} |
||||
iter.ReportError("readObjectStart", "expect { or n, but found "+string([]byte{c})) |
||||
return false |
||||
} |
||||
|
||||
func (iter *Iterator) readObjectFieldAsBytes() (ret []byte) { |
||||
str := iter.ReadStringAsSlice() |
||||
if iter.skipWhitespacesWithoutLoadMore() { |
||||
if ret == nil { |
||||
ret = make([]byte, len(str)) |
||||
copy(ret, str) |
||||
} |
||||
if !iter.loadMore() { |
||||
return |
||||
} |
||||
} |
||||
if iter.buf[iter.head] != ':' { |
||||
iter.ReportError("readObjectFieldAsBytes", "expect : after object field, but found "+string([]byte{iter.buf[iter.head]})) |
||||
return |
||||
} |
||||
iter.head++ |
||||
if iter.skipWhitespacesWithoutLoadMore() { |
||||
if ret == nil { |
||||
ret = make([]byte, len(str)) |
||||
copy(ret, str) |
||||
} |
||||
if !iter.loadMore() { |
||||
return |
||||
} |
||||
} |
||||
if ret == nil { |
||||
return str |
||||
} |
||||
return ret |
||||
} |
||||
@ -0,0 +1,130 @@ |
||||
package jsoniter |
||||
|
||||
import "fmt" |
||||
|
||||
// ReadNil reads a json object as nil and
|
||||
// returns whether it's a nil or not
|
||||
func (iter *Iterator) ReadNil() (ret bool) { |
||||
c := iter.nextToken() |
||||
if c == 'n' { |
||||
iter.skipThreeBytes('u', 'l', 'l') // null
|
||||
return true |
||||
} |
||||
iter.unreadByte() |
||||
return false |
||||
} |
||||
|
||||
// ReadBool reads a json object as BoolValue
|
||||
func (iter *Iterator) ReadBool() (ret bool) { |
||||
c := iter.nextToken() |
||||
if c == 't' { |
||||
iter.skipThreeBytes('r', 'u', 'e') |
||||
return true |
||||
} |
||||
if c == 'f' { |
||||
iter.skipFourBytes('a', 'l', 's', 'e') |
||||
return false |
||||
} |
||||
iter.ReportError("ReadBool", "expect t or f, but found "+string([]byte{c})) |
||||
return |
||||
} |
||||
|
||||
// SkipAndReturnBytes skip next JSON element, and return its content as []byte.
|
||||
// The []byte can be kept, it is a copy of data.
|
||||
func (iter *Iterator) SkipAndReturnBytes() []byte { |
||||
iter.startCapture(iter.head) |
||||
iter.Skip() |
||||
return iter.stopCapture() |
||||
} |
||||
|
||||
// SkipAndAppendBytes skips next JSON element and appends its content to
|
||||
// buffer, returning the result.
|
||||
func (iter *Iterator) SkipAndAppendBytes(buf []byte) []byte { |
||||
iter.startCaptureTo(buf, iter.head) |
||||
iter.Skip() |
||||
return iter.stopCapture() |
||||
} |
||||
|
||||
func (iter *Iterator) startCaptureTo(buf []byte, captureStartedAt int) { |
||||
if iter.captured != nil { |
||||
panic("already in capture mode") |
||||
} |
||||
iter.captureStartedAt = captureStartedAt |
||||
iter.captured = buf |
||||
} |
||||
|
||||
func (iter *Iterator) startCapture(captureStartedAt int) { |
||||
iter.startCaptureTo(make([]byte, 0, 32), captureStartedAt) |
||||
} |
||||
|
||||
func (iter *Iterator) stopCapture() []byte { |
||||
if iter.captured == nil { |
||||
panic("not in capture mode") |
||||
} |
||||
captured := iter.captured |
||||
remaining := iter.buf[iter.captureStartedAt:iter.head] |
||||
iter.captureStartedAt = -1 |
||||
iter.captured = nil |
||||
return append(captured, remaining...) |
||||
} |
||||
|
||||
// Skip skips a json object and positions to relatively the next json object
|
||||
func (iter *Iterator) Skip() { |
||||
c := iter.nextToken() |
||||
switch c { |
||||
case '"': |
||||
iter.skipString() |
||||
case 'n': |
||||
iter.skipThreeBytes('u', 'l', 'l') // null
|
||||
case 't': |
||||
iter.skipThreeBytes('r', 'u', 'e') // true
|
||||
case 'f': |
||||
iter.skipFourBytes('a', 'l', 's', 'e') // false
|
||||
case '0': |
||||
iter.unreadByte() |
||||
iter.ReadFloat32() |
||||
case '-', '1', '2', '3', '4', '5', '6', '7', '8', '9': |
||||
iter.skipNumber() |
||||
case '[': |
||||
iter.skipArray() |
||||
case '{': |
||||
iter.skipObject() |
||||
default: |
||||
iter.ReportError("Skip", fmt.Sprintf("do not know how to skip: %v", c)) |
||||
return |
||||
} |
||||
} |
||||
|
||||
func (iter *Iterator) skipFourBytes(b1, b2, b3, b4 byte) { |
||||
if iter.readByte() != b1 { |
||||
iter.ReportError("skipFourBytes", fmt.Sprintf("expect %s", string([]byte{b1, b2, b3, b4}))) |
||||
return |
||||
} |
||||
if iter.readByte() != b2 { |
||||
iter.ReportError("skipFourBytes", fmt.Sprintf("expect %s", string([]byte{b1, b2, b3, b4}))) |
||||
return |
||||
} |
||||
if iter.readByte() != b3 { |
||||
iter.ReportError("skipFourBytes", fmt.Sprintf("expect %s", string([]byte{b1, b2, b3, b4}))) |
||||
return |
||||
} |
||||
if iter.readByte() != b4 { |
||||
iter.ReportError("skipFourBytes", fmt.Sprintf("expect %s", string([]byte{b1, b2, b3, b4}))) |
||||
return |
||||
} |
||||
} |
||||
|
||||
func (iter *Iterator) skipThreeBytes(b1, b2, b3 byte) { |
||||
if iter.readByte() != b1 { |
||||
iter.ReportError("skipThreeBytes", fmt.Sprintf("expect %s", string([]byte{b1, b2, b3}))) |
||||
return |
||||
} |
||||
if iter.readByte() != b2 { |
||||
iter.ReportError("skipThreeBytes", fmt.Sprintf("expect %s", string([]byte{b1, b2, b3}))) |
||||
return |
||||
} |
||||
if iter.readByte() != b3 { |
||||
iter.ReportError("skipThreeBytes", fmt.Sprintf("expect %s", string([]byte{b1, b2, b3}))) |
||||
return |
||||
} |
||||
} |
||||
@ -0,0 +1,163 @@ |
||||
//+build jsoniter_sloppy
|
||||
|
||||
package jsoniter |
||||
|
||||
// sloppy but faster implementation, do not validate the input json
|
||||
|
||||
func (iter *Iterator) skipNumber() { |
||||
for { |
||||
for i := iter.head; i < iter.tail; i++ { |
||||
c := iter.buf[i] |
||||
switch c { |
||||
case ' ', '\n', '\r', '\t', ',', '}', ']': |
||||
iter.head = i |
||||
return |
||||
} |
||||
} |
||||
if !iter.loadMore() { |
||||
return |
||||
} |
||||
} |
||||
} |
||||
|
||||
func (iter *Iterator) skipArray() { |
||||
level := 1 |
||||
if !iter.incrementDepth() { |
||||
return |
||||
} |
||||
for { |
||||
for i := iter.head; i < iter.tail; i++ { |
||||
switch iter.buf[i] { |
||||
case '"': // If inside string, skip it
|
||||
iter.head = i + 1 |
||||
iter.skipString() |
||||
i = iter.head - 1 // it will be i++ soon
|
||||
case '[': // If open symbol, increase level
|
||||
level++ |
||||
if !iter.incrementDepth() { |
||||
return |
||||
} |
||||
case ']': // If close symbol, increase level
|
||||
level-- |
||||
if !iter.decrementDepth() { |
||||
return |
||||
} |
||||
|
||||
// If we have returned to the original level, we're done
|
||||
if level == 0 { |
||||
iter.head = i + 1 |
||||
return |
||||
} |
||||
} |
||||
} |
||||
if !iter.loadMore() { |
||||
iter.ReportError("skipObject", "incomplete array") |
||||
return |
||||
} |
||||
} |
||||
} |
||||
|
||||
func (iter *Iterator) skipObject() { |
||||
level := 1 |
||||
if !iter.incrementDepth() { |
||||
return |
||||
} |
||||
|
||||
for { |
||||
for i := iter.head; i < iter.tail; i++ { |
||||
switch iter.buf[i] { |
||||
case '"': // If inside string, skip it
|
||||
iter.head = i + 1 |
||||
iter.skipString() |
||||
i = iter.head - 1 // it will be i++ soon
|
||||
case '{': // If open symbol, increase level
|
||||
level++ |
||||
if !iter.incrementDepth() { |
||||
return |
||||
} |
||||
case '}': // If close symbol, increase level
|
||||
level-- |
||||
if !iter.decrementDepth() { |
||||
return |
||||
} |
||||
|
||||
// If we have returned to the original level, we're done
|
||||
if level == 0 { |
||||
iter.head = i + 1 |
||||
return |
||||
} |
||||
} |
||||
} |
||||
if !iter.loadMore() { |
||||
iter.ReportError("skipObject", "incomplete object") |
||||
return |
||||
} |
||||
} |
||||
} |
||||
|
||||
func (iter *Iterator) skipString() { |
||||
for { |
||||
end, escaped := iter.findStringEnd() |
||||
if end == -1 { |
||||
if !iter.loadMore() { |
||||
iter.ReportError("skipString", "incomplete string") |
||||
return |
||||
} |
||||
if escaped { |
||||
iter.head = 1 // skip the first char as last char read is \
|
||||
} |
||||
} else { |
||||
iter.head = end |
||||
return |
||||
} |
||||
} |
||||
} |
||||
|
||||
// adapted from: https://github.com/buger/jsonparser/blob/master/parser.go
|
||||
// Tries to find the end of string
|
||||
// Support if string contains escaped quote symbols.
|
||||
func (iter *Iterator) findStringEnd() (int, bool) { |
||||
escaped := false |
||||
for i := iter.head; i < iter.tail; i++ { |
||||
c := iter.buf[i] |
||||
if c == '"' { |
||||
if !escaped { |
||||
return i + 1, false |
||||
} |
||||
j := i - 1 |
||||
for { |
||||
if j < iter.head || iter.buf[j] != '\\' { |
||||
// even number of backslashes
|
||||
// either end of buffer, or " found
|
||||
return i + 1, true |
||||
} |
||||
j-- |
||||
if j < iter.head || iter.buf[j] != '\\' { |
||||
// odd number of backslashes
|
||||
// it is \" or \\\"
|
||||
break |
||||
} |
||||
j-- |
||||
} |
||||
} else if c == '\\' { |
||||
escaped = true |
||||
} |
||||
} |
||||
j := iter.tail - 1 |
||||
for { |
||||
if j < iter.head || iter.buf[j] != '\\' { |
||||
// even number of backslashes
|
||||
// either end of buffer, or " found
|
||||
return -1, false // do not end with \
|
||||
} |
||||
j-- |
||||
if j < iter.head || iter.buf[j] != '\\' { |
||||
// odd number of backslashes
|
||||
// it is \" or \\\"
|
||||
break |
||||
} |
||||
j-- |
||||
|
||||
} |
||||
return -1, true // end with \
|
||||
} |
||||
@ -0,0 +1,99 @@ |
||||
//+build !jsoniter_sloppy
|
||||
|
||||
package jsoniter |
||||
|
||||
import ( |
||||
"fmt" |
||||
"io" |
||||
) |
||||
|
||||
func (iter *Iterator) skipNumber() { |
||||
if !iter.trySkipNumber() { |
||||
iter.unreadByte() |
||||
if iter.Error != nil && iter.Error != io.EOF { |
||||
return |
||||
} |
||||
iter.ReadFloat64() |
||||
if iter.Error != nil && iter.Error != io.EOF { |
||||
iter.Error = nil |
||||
iter.ReadBigFloat() |
||||
} |
||||
} |
||||
} |
||||
|
||||
func (iter *Iterator) trySkipNumber() bool { |
||||
dotFound := false |
||||
for i := iter.head; i < iter.tail; i++ { |
||||
c := iter.buf[i] |
||||
switch c { |
||||
case '0', '1', '2', '3', '4', '5', '6', '7', '8', '9': |
||||
case '.': |
||||
if dotFound { |
||||
iter.ReportError("validateNumber", `more than one dot found in number`) |
||||
return true // already failed
|
||||
} |
||||
if i+1 == iter.tail { |
||||
return false |
||||
} |
||||
c = iter.buf[i+1] |
||||
switch c { |
||||
case '0', '1', '2', '3', '4', '5', '6', '7', '8', '9': |
||||
default: |
||||
iter.ReportError("validateNumber", `missing digit after dot`) |
||||
return true // already failed
|
||||
} |
||||
dotFound = true |
||||
default: |
||||
switch c { |
||||
case ',', ']', '}', ' ', '\t', '\n', '\r': |
||||
if iter.head == i { |
||||
return false // if - without following digits
|
||||
} |
||||
iter.head = i |
||||
return true // must be valid
|
||||
} |
||||
return false // may be invalid
|
||||
} |
||||
} |
||||
return false |
||||
} |
||||
|
||||
func (iter *Iterator) skipString() { |
||||
if !iter.trySkipString() { |
||||
iter.unreadByte() |
||||
iter.ReadString() |
||||
} |
||||
} |
||||
|
||||
func (iter *Iterator) trySkipString() bool { |
||||
for i := iter.head; i < iter.tail; i++ { |
||||
c := iter.buf[i] |
||||
if c == '"' { |
||||
iter.head = i + 1 |
||||
return true // valid
|
||||
} else if c == '\\' { |
||||
return false |
||||
} else if c < ' ' { |
||||
iter.ReportError("trySkipString", |
||||
fmt.Sprintf(`invalid control character found: %d`, c)) |
||||
return true // already failed
|
||||
} |
||||
} |
||||
return false |
||||
} |
||||
|
||||
func (iter *Iterator) skipObject() { |
||||
iter.unreadByte() |
||||
iter.ReadObjectCB(func(iter *Iterator, field string) bool { |
||||
iter.Skip() |
||||
return true |
||||
}) |
||||
} |
||||
|
||||
func (iter *Iterator) skipArray() { |
||||
iter.unreadByte() |
||||
iter.ReadArrayCB(func(iter *Iterator) bool { |
||||
iter.Skip() |
||||
return true |
||||
}) |
||||
} |
||||
@ -0,0 +1,215 @@ |
||||
package jsoniter |
||||
|
||||
import ( |
||||
"fmt" |
||||
"unicode/utf16" |
||||
) |
||||
|
||||
// ReadString read string from iterator
|
||||
func (iter *Iterator) ReadString() (ret string) { |
||||
c := iter.nextToken() |
||||
if c == '"' { |
||||
for i := iter.head; i < iter.tail; i++ { |
||||
c := iter.buf[i] |
||||
if c == '"' { |
||||
ret = string(iter.buf[iter.head:i]) |
||||
iter.head = i + 1 |
||||
return ret |
||||
} else if c == '\\' { |
||||
break |
||||
} else if c < ' ' { |
||||
iter.ReportError("ReadString", |
||||
fmt.Sprintf(`invalid control character found: %d`, c)) |
||||
return |
||||
} |
||||
} |
||||
return iter.readStringSlowPath() |
||||
} else if c == 'n' { |
||||
iter.skipThreeBytes('u', 'l', 'l') |
||||
return "" |
||||
} |
||||
iter.ReportError("ReadString", `expects " or n, but found `+string([]byte{c})) |
||||
return |
||||
} |
||||
|
||||
func (iter *Iterator) readStringSlowPath() (ret string) { |
||||
var str []byte |
||||
var c byte |
||||
for iter.Error == nil { |
||||
c = iter.readByte() |
||||
if c == '"' { |
||||
return string(str) |
||||
} |
||||
if c == '\\' { |
||||
c = iter.readByte() |
||||
str = iter.readEscapedChar(c, str) |
||||
} else { |
||||
str = append(str, c) |
||||
} |
||||
} |
||||
iter.ReportError("readStringSlowPath", "unexpected end of input") |
||||
return |
||||
} |
||||
|
||||
func (iter *Iterator) readEscapedChar(c byte, str []byte) []byte { |
||||
switch c { |
||||
case 'u': |
||||
r := iter.readU4() |
||||
if utf16.IsSurrogate(r) { |
||||
c = iter.readByte() |
||||
if iter.Error != nil { |
||||
return nil |
||||
} |
||||
if c != '\\' { |
||||
iter.unreadByte() |
||||
str = appendRune(str, r) |
||||
return str |
||||
} |
||||
c = iter.readByte() |
||||
if iter.Error != nil { |
||||
return nil |
||||
} |
||||
if c != 'u' { |
||||
str = appendRune(str, r) |
||||
return iter.readEscapedChar(c, str) |
||||
} |
||||
r2 := iter.readU4() |
||||
if iter.Error != nil { |
||||
return nil |
||||
} |
||||
combined := utf16.DecodeRune(r, r2) |
||||
if combined == '\uFFFD' { |
||||
str = appendRune(str, r) |
||||
str = appendRune(str, r2) |
||||
} else { |
||||
str = appendRune(str, combined) |
||||
} |
||||
} else { |
||||
str = appendRune(str, r) |
||||
} |
||||
case '"': |
||||
str = append(str, '"') |
||||
case '\\': |
||||
str = append(str, '\\') |
||||
case '/': |
||||
str = append(str, '/') |
||||
case 'b': |
||||
str = append(str, '\b') |
||||
case 'f': |
||||
str = append(str, '\f') |
||||
case 'n': |
||||
str = append(str, '\n') |
||||
case 'r': |
||||
str = append(str, '\r') |
||||
case 't': |
||||
str = append(str, '\t') |
||||
default: |
||||
iter.ReportError("readEscapedChar", |
||||
`invalid escape char after \`) |
||||
return nil |
||||
} |
||||
return str |
||||
} |
||||
|
||||
// ReadStringAsSlice read string from iterator without copying into string form.
|
||||
// The []byte can not be kept, as it will change after next iterator call.
|
||||
func (iter *Iterator) ReadStringAsSlice() (ret []byte) { |
||||
c := iter.nextToken() |
||||
if c == '"' { |
||||
for i := iter.head; i < iter.tail; i++ { |
||||
// require ascii string and no escape
|
||||
// for: field name, base64, number
|
||||
if iter.buf[i] == '"' { |
||||
// fast path: reuse the underlying buffer
|
||||
ret = iter.buf[iter.head:i] |
||||
iter.head = i + 1 |
||||
return ret |
||||
} |
||||
} |
||||
readLen := iter.tail - iter.head |
||||
copied := make([]byte, readLen, readLen*2) |
||||
copy(copied, iter.buf[iter.head:iter.tail]) |
||||
iter.head = iter.tail |
||||
for iter.Error == nil { |
||||
c := iter.readByte() |
||||
if c == '"' { |
||||
return copied |
||||
} |
||||
copied = append(copied, c) |
||||
} |
||||
return copied |
||||
} |
||||
iter.ReportError("ReadStringAsSlice", `expects " or n, but found `+string([]byte{c})) |
||||
return |
||||
} |
||||
|
||||
func (iter *Iterator) readU4() (ret rune) { |
||||
for i := 0; i < 4; i++ { |
||||
c := iter.readByte() |
||||
if iter.Error != nil { |
||||
return |
||||
} |
||||
if c >= '0' && c <= '9' { |
||||
ret = ret*16 + rune(c-'0') |
||||
} else if c >= 'a' && c <= 'f' { |
||||
ret = ret*16 + rune(c-'a'+10) |
||||
} else if c >= 'A' && c <= 'F' { |
||||
ret = ret*16 + rune(c-'A'+10) |
||||
} else { |
||||
iter.ReportError("readU4", "expects 0~9 or a~f, but found "+string([]byte{c})) |
||||
return |
||||
} |
||||
} |
||||
return ret |
||||
} |
||||
|
||||
const ( |
||||
t1 = 0x00 // 0000 0000
|
||||
tx = 0x80 // 1000 0000
|
||||
t2 = 0xC0 // 1100 0000
|
||||
t3 = 0xE0 // 1110 0000
|
||||
t4 = 0xF0 // 1111 0000
|
||||
t5 = 0xF8 // 1111 1000
|
||||
|
||||
maskx = 0x3F // 0011 1111
|
||||
mask2 = 0x1F // 0001 1111
|
||||
mask3 = 0x0F // 0000 1111
|
||||
mask4 = 0x07 // 0000 0111
|
||||
|
||||
rune1Max = 1<<7 - 1 |
||||
rune2Max = 1<<11 - 1 |
||||
rune3Max = 1<<16 - 1 |
||||
|
||||
surrogateMin = 0xD800 |
||||
surrogateMax = 0xDFFF |
||||
|
||||
maxRune = '\U0010FFFF' // Maximum valid Unicode code point.
|
||||
runeError = '\uFFFD' // the "error" Rune or "Unicode replacement character"
|
||||
) |
||||
|
||||
func appendRune(p []byte, r rune) []byte { |
||||
// Negative values are erroneous. Making it unsigned addresses the problem.
|
||||
switch i := uint32(r); { |
||||
case i <= rune1Max: |
||||
p = append(p, byte(r)) |
||||
return p |
||||
case i <= rune2Max: |
||||
p = append(p, t2|byte(r>>6)) |
||||
p = append(p, tx|byte(r)&maskx) |
||||
return p |
||||
case i > maxRune, surrogateMin <= i && i <= surrogateMax: |
||||
r = runeError |
||||
fallthrough |
||||
case i <= rune3Max: |
||||
p = append(p, t3|byte(r>>12)) |
||||
p = append(p, tx|byte(r>>6)&maskx) |
||||
p = append(p, tx|byte(r)&maskx) |
||||
return p |
||||
default: |
||||
p = append(p, t4|byte(r>>18)) |
||||
p = append(p, tx|byte(r>>12)&maskx) |
||||
p = append(p, tx|byte(r>>6)&maskx) |
||||
p = append(p, tx|byte(r)&maskx) |
||||
return p |
||||
} |
||||
} |
||||
@ -0,0 +1,18 @@ |
||||
// Package jsoniter implements encoding and decoding of JSON as defined in
|
||||
// RFC 4627 and provides interfaces with identical syntax of standard lib encoding/json.
|
||||
// Converting from encoding/json to jsoniter is no more than replacing the package with jsoniter
|
||||
// and variable type declarations (if any).
|
||||
// jsoniter interfaces gives 100% compatibility with code using standard lib.
|
||||
//
|
||||
// "JSON and Go"
|
||||
// (https://golang.org/doc/articles/json_and_go.html)
|
||||
// gives a description of how Marshal/Unmarshal operate
|
||||
// between arbitrary or predefined json objects and bytes,
|
||||
// and it applies to jsoniter.Marshal/Unmarshal as well.
|
||||
//
|
||||
// Besides, jsoniter.Iterator provides a different set of interfaces
|
||||
// iterating given bytes/string/reader
|
||||
// and yielding parsed elements one by one.
|
||||
// This set of interfaces reads input as required and gives
|
||||
// better performance.
|
||||
package jsoniter |
||||
@ -0,0 +1,42 @@ |
||||
package jsoniter |
||||
|
||||
import ( |
||||
"io" |
||||
) |
||||
|
||||
// IteratorPool a thread safe pool of iterators with same configuration
|
||||
type IteratorPool interface { |
||||
BorrowIterator(data []byte) *Iterator |
||||
ReturnIterator(iter *Iterator) |
||||
} |
||||
|
||||
// StreamPool a thread safe pool of streams with same configuration
|
||||
type StreamPool interface { |
||||
BorrowStream(writer io.Writer) *Stream |
||||
ReturnStream(stream *Stream) |
||||
} |
||||
|
||||
func (cfg *frozenConfig) BorrowStream(writer io.Writer) *Stream { |
||||
stream := cfg.streamPool.Get().(*Stream) |
||||
stream.Reset(writer) |
||||
return stream |
||||
} |
||||
|
||||
func (cfg *frozenConfig) ReturnStream(stream *Stream) { |
||||
stream.out = nil |
||||
stream.Error = nil |
||||
stream.Attachment = nil |
||||
cfg.streamPool.Put(stream) |
||||
} |
||||
|
||||
func (cfg *frozenConfig) BorrowIterator(data []byte) *Iterator { |
||||
iter := cfg.iteratorPool.Get().(*Iterator) |
||||
iter.ResetBytes(data) |
||||
return iter |
||||
} |
||||
|
||||
func (cfg *frozenConfig) ReturnIterator(iter *Iterator) { |
||||
iter.Error = nil |
||||
iter.Attachment = nil |
||||
cfg.iteratorPool.Put(iter) |
||||
} |
||||
@ -0,0 +1,337 @@ |
||||
package jsoniter |
||||
|
||||
import ( |
||||
"fmt" |
||||
"reflect" |
||||
"unsafe" |
||||
|
||||
"github.com/modern-go/reflect2" |
||||
) |
||||
|
||||
// ValDecoder is an internal type registered to cache as needed.
|
||||
// Don't confuse jsoniter.ValDecoder with json.Decoder.
|
||||
// For json.Decoder's adapter, refer to jsoniter.AdapterDecoder(todo link).
|
||||
//
|
||||
// Reflection on type to create decoders, which is then cached
|
||||
// Reflection on value is avoided as we can, as the reflect.Value itself will allocate, with following exceptions
|
||||
// 1. create instance of new value, for example *int will need a int to be allocated
|
||||
// 2. append to slice, if the existing cap is not enough, allocate will be done using Reflect.New
|
||||
// 3. assignment to map, both key and value will be reflect.Value
|
||||
// For a simple struct binding, it will be reflect.Value free and allocation free
|
||||
type ValDecoder interface { |
||||
Decode(ptr unsafe.Pointer, iter *Iterator) |
||||
} |
||||
|
||||
// ValEncoder is an internal type registered to cache as needed.
|
||||
// Don't confuse jsoniter.ValEncoder with json.Encoder.
|
||||
// For json.Encoder's adapter, refer to jsoniter.AdapterEncoder(todo godoc link).
|
||||
type ValEncoder interface { |
||||
IsEmpty(ptr unsafe.Pointer) bool |
||||
Encode(ptr unsafe.Pointer, stream *Stream) |
||||
} |
||||
|
||||
type checkIsEmpty interface { |
||||
IsEmpty(ptr unsafe.Pointer) bool |
||||
} |
||||
|
||||
type ctx struct { |
||||
*frozenConfig |
||||
prefix string |
||||
encoders map[reflect2.Type]ValEncoder |
||||
decoders map[reflect2.Type]ValDecoder |
||||
} |
||||
|
||||
func (b *ctx) caseSensitive() bool { |
||||
if b.frozenConfig == nil { |
||||
// default is case-insensitive
|
||||
return false |
||||
} |
||||
return b.frozenConfig.caseSensitive |
||||
} |
||||
|
||||
func (b *ctx) append(prefix string) *ctx { |
||||
return &ctx{ |
||||
frozenConfig: b.frozenConfig, |
||||
prefix: b.prefix + " " + prefix, |
||||
encoders: b.encoders, |
||||
decoders: b.decoders, |
||||
} |
||||
} |
||||
|
||||
// ReadVal copy the underlying JSON into go interface, same as json.Unmarshal
|
||||
func (iter *Iterator) ReadVal(obj interface{}) { |
||||
depth := iter.depth |
||||
cacheKey := reflect2.RTypeOf(obj) |
||||
decoder := iter.cfg.getDecoderFromCache(cacheKey) |
||||
if decoder == nil { |
||||
typ := reflect2.TypeOf(obj) |
||||
if typ.Kind() != reflect.Ptr { |
||||
iter.ReportError("ReadVal", "can only unmarshal into pointer") |
||||
return |
||||
} |
||||
decoder = iter.cfg.DecoderOf(typ) |
||||
} |
||||
ptr := reflect2.PtrOf(obj) |
||||
if ptr == nil { |
||||
iter.ReportError("ReadVal", "can not read into nil pointer") |
||||
return |
||||
} |
||||
decoder.Decode(ptr, iter) |
||||
if iter.depth != depth { |
||||
iter.ReportError("ReadVal", "unexpected mismatched nesting") |
||||
return |
||||
} |
||||
} |
||||
|
||||
// WriteVal copy the go interface into underlying JSON, same as json.Marshal
|
||||
func (stream *Stream) WriteVal(val interface{}) { |
||||
if nil == val { |
||||
stream.WriteNil() |
||||
return |
||||
} |
||||
cacheKey := reflect2.RTypeOf(val) |
||||
encoder := stream.cfg.getEncoderFromCache(cacheKey) |
||||
if encoder == nil { |
||||
typ := reflect2.TypeOf(val) |
||||
encoder = stream.cfg.EncoderOf(typ) |
||||
} |
||||
encoder.Encode(reflect2.PtrOf(val), stream) |
||||
} |
||||
|
||||
func (cfg *frozenConfig) DecoderOf(typ reflect2.Type) ValDecoder { |
||||
cacheKey := typ.RType() |
||||
decoder := cfg.getDecoderFromCache(cacheKey) |
||||
if decoder != nil { |
||||
return decoder |
||||
} |
||||
ctx := &ctx{ |
||||
frozenConfig: cfg, |
||||
prefix: "", |
||||
decoders: map[reflect2.Type]ValDecoder{}, |
||||
encoders: map[reflect2.Type]ValEncoder{}, |
||||
} |
||||
ptrType := typ.(*reflect2.UnsafePtrType) |
||||
decoder = decoderOfType(ctx, ptrType.Elem()) |
||||
cfg.addDecoderToCache(cacheKey, decoder) |
||||
return decoder |
||||
} |
||||
|
||||
func decoderOfType(ctx *ctx, typ reflect2.Type) ValDecoder { |
||||
decoder := getTypeDecoderFromExtension(ctx, typ) |
||||
if decoder != nil { |
||||
return decoder |
||||
} |
||||
decoder = createDecoderOfType(ctx, typ) |
||||
for _, extension := range extensions { |
||||
decoder = extension.DecorateDecoder(typ, decoder) |
||||
} |
||||
decoder = ctx.decoderExtension.DecorateDecoder(typ, decoder) |
||||
for _, extension := range ctx.extraExtensions { |
||||
decoder = extension.DecorateDecoder(typ, decoder) |
||||
} |
||||
return decoder |
||||
} |
||||
|
||||
func createDecoderOfType(ctx *ctx, typ reflect2.Type) ValDecoder { |
||||
decoder := ctx.decoders[typ] |
||||
if decoder != nil { |
||||
return decoder |
||||
} |
||||
placeholder := &placeholderDecoder{} |
||||
ctx.decoders[typ] = placeholder |
||||
decoder = _createDecoderOfType(ctx, typ) |
||||
placeholder.decoder = decoder |
||||
return decoder |
||||
} |
||||
|
||||
func _createDecoderOfType(ctx *ctx, typ reflect2.Type) ValDecoder { |
||||
decoder := createDecoderOfJsonRawMessage(ctx, typ) |
||||
if decoder != nil { |
||||
return decoder |
||||
} |
||||
decoder = createDecoderOfJsonNumber(ctx, typ) |
||||
if decoder != nil { |
||||
return decoder |
||||
} |
||||
decoder = createDecoderOfMarshaler(ctx, typ) |
||||
if decoder != nil { |
||||
return decoder |
||||
} |
||||
decoder = createDecoderOfAny(ctx, typ) |
||||
if decoder != nil { |
||||
return decoder |
||||
} |
||||
decoder = createDecoderOfNative(ctx, typ) |
||||
if decoder != nil { |
||||
return decoder |
||||
} |
||||
switch typ.Kind() { |
||||
case reflect.Interface: |
||||
ifaceType, isIFace := typ.(*reflect2.UnsafeIFaceType) |
||||
if isIFace { |
||||
return &ifaceDecoder{valType: ifaceType} |
||||
} |
||||
return &efaceDecoder{} |
||||
case reflect.Struct: |
||||
return decoderOfStruct(ctx, typ) |
||||
case reflect.Array: |
||||
return decoderOfArray(ctx, typ) |
||||
case reflect.Slice: |
||||
return decoderOfSlice(ctx, typ) |
||||
case reflect.Map: |
||||
return decoderOfMap(ctx, typ) |
||||
case reflect.Ptr: |
||||
return decoderOfOptional(ctx, typ) |
||||
default: |
||||
return &lazyErrorDecoder{err: fmt.Errorf("%s%s is unsupported type", ctx.prefix, typ.String())} |
||||
} |
||||
} |
||||
|
||||
func (cfg *frozenConfig) EncoderOf(typ reflect2.Type) ValEncoder { |
||||
cacheKey := typ.RType() |
||||
encoder := cfg.getEncoderFromCache(cacheKey) |
||||
if encoder != nil { |
||||
return encoder |
||||
} |
||||
ctx := &ctx{ |
||||
frozenConfig: cfg, |
||||
prefix: "", |
||||
decoders: map[reflect2.Type]ValDecoder{}, |
||||
encoders: map[reflect2.Type]ValEncoder{}, |
||||
} |
||||
encoder = encoderOfType(ctx, typ) |
||||
if typ.LikePtr() { |
||||
encoder = &onePtrEncoder{encoder} |
||||
} |
||||
cfg.addEncoderToCache(cacheKey, encoder) |
||||
return encoder |
||||
} |
||||
|
||||
type onePtrEncoder struct { |
||||
encoder ValEncoder |
||||
} |
||||
|
||||
func (encoder *onePtrEncoder) IsEmpty(ptr unsafe.Pointer) bool { |
||||
return encoder.encoder.IsEmpty(unsafe.Pointer(&ptr)) |
||||
} |
||||
|
||||
func (encoder *onePtrEncoder) Encode(ptr unsafe.Pointer, stream *Stream) { |
||||
encoder.encoder.Encode(unsafe.Pointer(&ptr), stream) |
||||
} |
||||
|
||||
func encoderOfType(ctx *ctx, typ reflect2.Type) ValEncoder { |
||||
encoder := getTypeEncoderFromExtension(ctx, typ) |
||||
if encoder != nil { |
||||
return encoder |
||||
} |
||||
encoder = createEncoderOfType(ctx, typ) |
||||
for _, extension := range extensions { |
||||
encoder = extension.DecorateEncoder(typ, encoder) |
||||
} |
||||
encoder = ctx.encoderExtension.DecorateEncoder(typ, encoder) |
||||
for _, extension := range ctx.extraExtensions { |
||||
encoder = extension.DecorateEncoder(typ, encoder) |
||||
} |
||||
return encoder |
||||
} |
||||
|
||||
func createEncoderOfType(ctx *ctx, typ reflect2.Type) ValEncoder { |
||||
encoder := ctx.encoders[typ] |
||||
if encoder != nil { |
||||
return encoder |
||||
} |
||||
placeholder := &placeholderEncoder{} |
||||
ctx.encoders[typ] = placeholder |
||||
encoder = _createEncoderOfType(ctx, typ) |
||||
placeholder.encoder = encoder |
||||
return encoder |
||||
} |
||||
func _createEncoderOfType(ctx *ctx, typ reflect2.Type) ValEncoder { |
||||
encoder := createEncoderOfJsonRawMessage(ctx, typ) |
||||
if encoder != nil { |
||||
return encoder |
||||
} |
||||
encoder = createEncoderOfJsonNumber(ctx, typ) |
||||
if encoder != nil { |
||||
return encoder |
||||
} |
||||
encoder = createEncoderOfMarshaler(ctx, typ) |
||||
if encoder != nil { |
||||
return encoder |
||||
} |
||||
encoder = createEncoderOfAny(ctx, typ) |
||||
if encoder != nil { |
||||
return encoder |
||||
} |
||||
encoder = createEncoderOfNative(ctx, typ) |
||||
if encoder != nil { |
||||
return encoder |
||||
} |
||||
kind := typ.Kind() |
||||
switch kind { |
||||
case reflect.Interface: |
||||
return &dynamicEncoder{typ} |
||||
case reflect.Struct: |
||||
return encoderOfStruct(ctx, typ) |
||||
case reflect.Array: |
||||
return encoderOfArray(ctx, typ) |
||||
case reflect.Slice: |
||||
return encoderOfSlice(ctx, typ) |
||||
case reflect.Map: |
||||
return encoderOfMap(ctx, typ) |
||||
case reflect.Ptr: |
||||
return encoderOfOptional(ctx, typ) |
||||
default: |
||||
return &lazyErrorEncoder{err: fmt.Errorf("%s%s is unsupported type", ctx.prefix, typ.String())} |
||||
} |
||||
} |
||||
|
||||
type lazyErrorDecoder struct { |
||||
err error |
||||
} |
||||
|
||||
func (decoder *lazyErrorDecoder) Decode(ptr unsafe.Pointer, iter *Iterator) { |
||||
if iter.WhatIsNext() != NilValue { |
||||
if iter.Error == nil { |
||||
iter.Error = decoder.err |
||||
} |
||||
} else { |
||||
iter.Skip() |
||||
} |
||||
} |
||||
|
||||
type lazyErrorEncoder struct { |
||||
err error |
||||
} |
||||
|
||||
func (encoder *lazyErrorEncoder) Encode(ptr unsafe.Pointer, stream *Stream) { |
||||
if ptr == nil { |
||||
stream.WriteNil() |
||||
} else if stream.Error == nil { |
||||
stream.Error = encoder.err |
||||
} |
||||
} |
||||
|
||||
func (encoder *lazyErrorEncoder) IsEmpty(ptr unsafe.Pointer) bool { |
||||
return false |
||||
} |
||||
|
||||
type placeholderDecoder struct { |
||||
decoder ValDecoder |
||||
} |
||||
|
||||
func (decoder *placeholderDecoder) Decode(ptr unsafe.Pointer, iter *Iterator) { |
||||
decoder.decoder.Decode(ptr, iter) |
||||
} |
||||
|
||||
type placeholderEncoder struct { |
||||
encoder ValEncoder |
||||
} |
||||
|
||||
func (encoder *placeholderEncoder) Encode(ptr unsafe.Pointer, stream *Stream) { |
||||
encoder.encoder.Encode(ptr, stream) |
||||
} |
||||
|
||||
func (encoder *placeholderEncoder) IsEmpty(ptr unsafe.Pointer) bool { |
||||
return encoder.encoder.IsEmpty(ptr) |
||||
} |
||||
@ -0,0 +1,104 @@ |
||||
package jsoniter |
||||
|
||||
import ( |
||||
"fmt" |
||||
"github.com/modern-go/reflect2" |
||||
"io" |
||||
"unsafe" |
||||
) |
||||
|
||||
func decoderOfArray(ctx *ctx, typ reflect2.Type) ValDecoder { |
||||
arrayType := typ.(*reflect2.UnsafeArrayType) |
||||
decoder := decoderOfType(ctx.append("[arrayElem]"), arrayType.Elem()) |
||||
return &arrayDecoder{arrayType, decoder} |
||||
} |
||||
|
||||
func encoderOfArray(ctx *ctx, typ reflect2.Type) ValEncoder { |
||||
arrayType := typ.(*reflect2.UnsafeArrayType) |
||||
if arrayType.Len() == 0 { |
||||
return emptyArrayEncoder{} |
||||
} |
||||
encoder := encoderOfType(ctx.append("[arrayElem]"), arrayType.Elem()) |
||||
return &arrayEncoder{arrayType, encoder} |
||||
} |
||||
|
||||
type emptyArrayEncoder struct{} |
||||
|
||||
func (encoder emptyArrayEncoder) Encode(ptr unsafe.Pointer, stream *Stream) { |
||||
stream.WriteEmptyArray() |
||||
} |
||||
|
||||
func (encoder emptyArrayEncoder) IsEmpty(ptr unsafe.Pointer) bool { |
||||
return true |
||||
} |
||||
|
||||
type arrayEncoder struct { |
||||
arrayType *reflect2.UnsafeArrayType |
||||
elemEncoder ValEncoder |
||||
} |
||||
|
||||
func (encoder *arrayEncoder) Encode(ptr unsafe.Pointer, stream *Stream) { |
||||
stream.WriteArrayStart() |
||||
elemPtr := unsafe.Pointer(ptr) |
||||
encoder.elemEncoder.Encode(elemPtr, stream) |
||||
for i := 1; i < encoder.arrayType.Len(); i++ { |
||||
stream.WriteMore() |
||||
elemPtr = encoder.arrayType.UnsafeGetIndex(ptr, i) |
||||
encoder.elemEncoder.Encode(elemPtr, stream) |
||||
} |
||||
stream.WriteArrayEnd() |
||||
if stream.Error != nil && stream.Error != io.EOF { |
||||
stream.Error = fmt.Errorf("%v: %s", encoder.arrayType, stream.Error.Error()) |
||||
} |
||||
} |
||||
|
||||
func (encoder *arrayEncoder) IsEmpty(ptr unsafe.Pointer) bool { |
||||
return false |
||||
} |
||||
|
||||
type arrayDecoder struct { |
||||
arrayType *reflect2.UnsafeArrayType |
||||
elemDecoder ValDecoder |
||||
} |
||||
|
||||
func (decoder *arrayDecoder) Decode(ptr unsafe.Pointer, iter *Iterator) { |
||||
decoder.doDecode(ptr, iter) |
||||
if iter.Error != nil && iter.Error != io.EOF { |
||||
iter.Error = fmt.Errorf("%v: %s", decoder.arrayType, iter.Error.Error()) |
||||
} |
||||
} |
||||
|
||||
func (decoder *arrayDecoder) doDecode(ptr unsafe.Pointer, iter *Iterator) { |
||||
c := iter.nextToken() |
||||
arrayType := decoder.arrayType |
||||
if c == 'n' { |
||||
iter.skipThreeBytes('u', 'l', 'l') |
||||
return |
||||
} |
||||
if c != '[' { |
||||
iter.ReportError("decode array", "expect [ or n, but found "+string([]byte{c})) |
||||
return |
||||
} |
||||
c = iter.nextToken() |
||||
if c == ']' { |
||||
return |
||||
} |
||||
iter.unreadByte() |
||||
elemPtr := arrayType.UnsafeGetIndex(ptr, 0) |
||||
decoder.elemDecoder.Decode(elemPtr, iter) |
||||
length := 1 |
||||
for c = iter.nextToken(); c == ','; c = iter.nextToken() { |
||||
if length >= arrayType.Len() { |
||||
iter.Skip() |
||||
continue |
||||
} |
||||
idx := length |
||||
length += 1 |
||||
elemPtr = arrayType.UnsafeGetIndex(ptr, idx) |
||||
decoder.elemDecoder.Decode(elemPtr, iter) |
||||
} |
||||
if c != ']' { |
||||
iter.ReportError("decode array", "expect ], but found "+string([]byte{c})) |
||||
return |
||||
} |
||||
} |
||||
@ -0,0 +1,70 @@ |
||||
package jsoniter |
||||
|
||||
import ( |
||||
"github.com/modern-go/reflect2" |
||||
"reflect" |
||||
"unsafe" |
||||
) |
||||
|
||||
type dynamicEncoder struct { |
||||
valType reflect2.Type |
||||
} |
||||
|
||||
func (encoder *dynamicEncoder) Encode(ptr unsafe.Pointer, stream *Stream) { |
||||
obj := encoder.valType.UnsafeIndirect(ptr) |
||||
stream.WriteVal(obj) |
||||
} |
||||
|
||||
func (encoder *dynamicEncoder) IsEmpty(ptr unsafe.Pointer) bool { |
||||
return encoder.valType.UnsafeIndirect(ptr) == nil |
||||
} |
||||
|
||||
type efaceDecoder struct { |
||||
} |
||||
|
||||
func (decoder *efaceDecoder) Decode(ptr unsafe.Pointer, iter *Iterator) { |
||||
pObj := (*interface{})(ptr) |
||||
obj := *pObj |
||||
if obj == nil { |
||||
*pObj = iter.Read() |
||||
return |
||||
} |
||||
typ := reflect2.TypeOf(obj) |
||||
if typ.Kind() != reflect.Ptr { |
||||
*pObj = iter.Read() |
||||
return |
||||
} |
||||
ptrType := typ.(*reflect2.UnsafePtrType) |
||||
ptrElemType := ptrType.Elem() |
||||
if iter.WhatIsNext() == NilValue { |
||||
if ptrElemType.Kind() != reflect.Ptr { |
||||
iter.skipFourBytes('n', 'u', 'l', 'l') |
||||
*pObj = nil |
||||
return |
||||
} |
||||
} |
||||
if reflect2.IsNil(obj) { |
||||
obj := ptrElemType.New() |
||||
iter.ReadVal(obj) |
||||
*pObj = obj |
||||
return |
||||
} |
||||
iter.ReadVal(obj) |
||||
} |
||||
|
||||
type ifaceDecoder struct { |
||||
valType *reflect2.UnsafeIFaceType |
||||
} |
||||
|
||||
func (decoder *ifaceDecoder) Decode(ptr unsafe.Pointer, iter *Iterator) { |
||||
if iter.ReadNil() { |
||||
decoder.valType.UnsafeSet(ptr, decoder.valType.UnsafeNew()) |
||||
return |
||||
} |
||||
obj := decoder.valType.UnsafeIndirect(ptr) |
||||
if reflect2.IsNil(obj) { |
||||
iter.ReportError("decode non empty interface", "can not unmarshal into nil") |
||||
return |
||||
} |
||||
iter.ReadVal(obj) |
||||
} |
||||
@ -0,0 +1,483 @@ |
||||
package jsoniter |
||||
|
||||
import ( |
||||
"fmt" |
||||
"github.com/modern-go/reflect2" |
||||
"reflect" |
||||
"sort" |
||||
"strings" |
||||
"unicode" |
||||
"unsafe" |
||||
) |
||||
|
||||
var typeDecoders = map[string]ValDecoder{} |
||||
var fieldDecoders = map[string]ValDecoder{} |
||||
var typeEncoders = map[string]ValEncoder{} |
||||
var fieldEncoders = map[string]ValEncoder{} |
||||
var extensions = []Extension{} |
||||
|
||||
// StructDescriptor describe how should we encode/decode the struct
|
||||
type StructDescriptor struct { |
||||
Type reflect2.Type |
||||
Fields []*Binding |
||||
} |
||||
|
||||
// GetField get one field from the descriptor by its name.
|
||||
// Can not use map here to keep field orders.
|
||||
func (structDescriptor *StructDescriptor) GetField(fieldName string) *Binding { |
||||
for _, binding := range structDescriptor.Fields { |
||||
if binding.Field.Name() == fieldName { |
||||
return binding |
||||
} |
||||
} |
||||
return nil |
||||
} |
||||
|
||||
// Binding describe how should we encode/decode the struct field
|
||||
type Binding struct { |
||||
levels []int |
||||
Field reflect2.StructField |
||||
FromNames []string |
||||
ToNames []string |
||||
Encoder ValEncoder |
||||
Decoder ValDecoder |
||||
} |
||||
|
||||
// Extension the one for all SPI. Customize encoding/decoding by specifying alternate encoder/decoder.
|
||||
// Can also rename fields by UpdateStructDescriptor.
|
||||
type Extension interface { |
||||
UpdateStructDescriptor(structDescriptor *StructDescriptor) |
||||
CreateMapKeyDecoder(typ reflect2.Type) ValDecoder |
||||
CreateMapKeyEncoder(typ reflect2.Type) ValEncoder |
||||
CreateDecoder(typ reflect2.Type) ValDecoder |
||||
CreateEncoder(typ reflect2.Type) ValEncoder |
||||
DecorateDecoder(typ reflect2.Type, decoder ValDecoder) ValDecoder |
||||
DecorateEncoder(typ reflect2.Type, encoder ValEncoder) ValEncoder |
||||
} |
||||
|
||||
// DummyExtension embed this type get dummy implementation for all methods of Extension
|
||||
type DummyExtension struct { |
||||
} |
||||
|
||||
// UpdateStructDescriptor No-op
|
||||
func (extension *DummyExtension) UpdateStructDescriptor(structDescriptor *StructDescriptor) { |
||||
} |
||||
|
||||
// CreateMapKeyDecoder No-op
|
||||
func (extension *DummyExtension) CreateMapKeyDecoder(typ reflect2.Type) ValDecoder { |
||||
return nil |
||||
} |
||||
|
||||
// CreateMapKeyEncoder No-op
|
||||
func (extension *DummyExtension) CreateMapKeyEncoder(typ reflect2.Type) ValEncoder { |
||||
return nil |
||||
} |
||||
|
||||
// CreateDecoder No-op
|
||||
func (extension *DummyExtension) CreateDecoder(typ reflect2.Type) ValDecoder { |
||||
return nil |
||||
} |
||||
|
||||
// CreateEncoder No-op
|
||||
func (extension *DummyExtension) CreateEncoder(typ reflect2.Type) ValEncoder { |
||||
return nil |
||||
} |
||||
|
||||
// DecorateDecoder No-op
|
||||
func (extension *DummyExtension) DecorateDecoder(typ reflect2.Type, decoder ValDecoder) ValDecoder { |
||||
return decoder |
||||
} |
||||
|
||||
// DecorateEncoder No-op
|
||||
func (extension *DummyExtension) DecorateEncoder(typ reflect2.Type, encoder ValEncoder) ValEncoder { |
||||
return encoder |
||||
} |
||||
|
||||
type EncoderExtension map[reflect2.Type]ValEncoder |
||||
|
||||
// UpdateStructDescriptor No-op
|
||||
func (extension EncoderExtension) UpdateStructDescriptor(structDescriptor *StructDescriptor) { |
||||
} |
||||
|
||||
// CreateDecoder No-op
|
||||
func (extension EncoderExtension) CreateDecoder(typ reflect2.Type) ValDecoder { |
||||
return nil |
||||
} |
||||
|
||||
// CreateEncoder get encoder from map
|
||||
func (extension EncoderExtension) CreateEncoder(typ reflect2.Type) ValEncoder { |
||||
return extension[typ] |
||||
} |
||||
|
||||
// CreateMapKeyDecoder No-op
|
||||
func (extension EncoderExtension) CreateMapKeyDecoder(typ reflect2.Type) ValDecoder { |
||||
return nil |
||||
} |
||||
|
||||
// CreateMapKeyEncoder No-op
|
||||
func (extension EncoderExtension) CreateMapKeyEncoder(typ reflect2.Type) ValEncoder { |
||||
return nil |
||||
} |
||||
|
||||
// DecorateDecoder No-op
|
||||
func (extension EncoderExtension) DecorateDecoder(typ reflect2.Type, decoder ValDecoder) ValDecoder { |
||||
return decoder |
||||
} |
||||
|
||||
// DecorateEncoder No-op
|
||||
func (extension EncoderExtension) DecorateEncoder(typ reflect2.Type, encoder ValEncoder) ValEncoder { |
||||
return encoder |
||||
} |
||||
|
||||
type DecoderExtension map[reflect2.Type]ValDecoder |
||||
|
||||
// UpdateStructDescriptor No-op
|
||||
func (extension DecoderExtension) UpdateStructDescriptor(structDescriptor *StructDescriptor) { |
||||
} |
||||
|
||||
// CreateMapKeyDecoder No-op
|
||||
func (extension DecoderExtension) CreateMapKeyDecoder(typ reflect2.Type) ValDecoder { |
||||
return nil |
||||
} |
||||
|
||||
// CreateMapKeyEncoder No-op
|
||||
func (extension DecoderExtension) CreateMapKeyEncoder(typ reflect2.Type) ValEncoder { |
||||
return nil |
||||
} |
||||
|
||||
// CreateDecoder get decoder from map
|
||||
func (extension DecoderExtension) CreateDecoder(typ reflect2.Type) ValDecoder { |
||||
return extension[typ] |
||||
} |
||||
|
||||
// CreateEncoder No-op
|
||||
func (extension DecoderExtension) CreateEncoder(typ reflect2.Type) ValEncoder { |
||||
return nil |
||||
} |
||||
|
||||
// DecorateDecoder No-op
|
||||
func (extension DecoderExtension) DecorateDecoder(typ reflect2.Type, decoder ValDecoder) ValDecoder { |
||||
return decoder |
||||
} |
||||
|
||||
// DecorateEncoder No-op
|
||||
func (extension DecoderExtension) DecorateEncoder(typ reflect2.Type, encoder ValEncoder) ValEncoder { |
||||
return encoder |
||||
} |
||||
|
||||
type funcDecoder struct { |
||||
fun DecoderFunc |
||||
} |
||||
|
||||
func (decoder *funcDecoder) Decode(ptr unsafe.Pointer, iter *Iterator) { |
||||
decoder.fun(ptr, iter) |
||||
} |
||||
|
||||
type funcEncoder struct { |
||||
fun EncoderFunc |
||||
isEmptyFunc func(ptr unsafe.Pointer) bool |
||||
} |
||||
|
||||
func (encoder *funcEncoder) Encode(ptr unsafe.Pointer, stream *Stream) { |
||||
encoder.fun(ptr, stream) |
||||
} |
||||
|
||||
func (encoder *funcEncoder) IsEmpty(ptr unsafe.Pointer) bool { |
||||
if encoder.isEmptyFunc == nil { |
||||
return false |
||||
} |
||||
return encoder.isEmptyFunc(ptr) |
||||
} |
||||
|
||||
// DecoderFunc the function form of TypeDecoder
|
||||
type DecoderFunc func(ptr unsafe.Pointer, iter *Iterator) |
||||
|
||||
// EncoderFunc the function form of TypeEncoder
|
||||
type EncoderFunc func(ptr unsafe.Pointer, stream *Stream) |
||||
|
||||
// RegisterTypeDecoderFunc register TypeDecoder for a type with function
|
||||
func RegisterTypeDecoderFunc(typ string, fun DecoderFunc) { |
||||
typeDecoders[typ] = &funcDecoder{fun} |
||||
} |
||||
|
||||
// RegisterTypeDecoder register TypeDecoder for a typ
|
||||
func RegisterTypeDecoder(typ string, decoder ValDecoder) { |
||||
typeDecoders[typ] = decoder |
||||
} |
||||
|
||||
// RegisterFieldDecoderFunc register TypeDecoder for a struct field with function
|
||||
func RegisterFieldDecoderFunc(typ string, field string, fun DecoderFunc) { |
||||
RegisterFieldDecoder(typ, field, &funcDecoder{fun}) |
||||
} |
||||
|
||||
// RegisterFieldDecoder register TypeDecoder for a struct field
|
||||
func RegisterFieldDecoder(typ string, field string, decoder ValDecoder) { |
||||
fieldDecoders[fmt.Sprintf("%s/%s", typ, field)] = decoder |
||||
} |
||||
|
||||
// RegisterTypeEncoderFunc register TypeEncoder for a type with encode/isEmpty function
|
||||
func RegisterTypeEncoderFunc(typ string, fun EncoderFunc, isEmptyFunc func(unsafe.Pointer) bool) { |
||||
typeEncoders[typ] = &funcEncoder{fun, isEmptyFunc} |
||||
} |
||||
|
||||
// RegisterTypeEncoder register TypeEncoder for a type
|
||||
func RegisterTypeEncoder(typ string, encoder ValEncoder) { |
||||
typeEncoders[typ] = encoder |
||||
} |
||||
|
||||
// RegisterFieldEncoderFunc register TypeEncoder for a struct field with encode/isEmpty function
|
||||
func RegisterFieldEncoderFunc(typ string, field string, fun EncoderFunc, isEmptyFunc func(unsafe.Pointer) bool) { |
||||
RegisterFieldEncoder(typ, field, &funcEncoder{fun, isEmptyFunc}) |
||||
} |
||||
|
||||
// RegisterFieldEncoder register TypeEncoder for a struct field
|
||||
func RegisterFieldEncoder(typ string, field string, encoder ValEncoder) { |
||||
fieldEncoders[fmt.Sprintf("%s/%s", typ, field)] = encoder |
||||
} |
||||
|
||||
// RegisterExtension register extension
|
||||
func RegisterExtension(extension Extension) { |
||||
extensions = append(extensions, extension) |
||||
} |
||||
|
||||
func getTypeDecoderFromExtension(ctx *ctx, typ reflect2.Type) ValDecoder { |
||||
decoder := _getTypeDecoderFromExtension(ctx, typ) |
||||
if decoder != nil { |
||||
for _, extension := range extensions { |
||||
decoder = extension.DecorateDecoder(typ, decoder) |
||||
} |
||||
decoder = ctx.decoderExtension.DecorateDecoder(typ, decoder) |
||||
for _, extension := range ctx.extraExtensions { |
||||
decoder = extension.DecorateDecoder(typ, decoder) |
||||
} |
||||
} |
||||
return decoder |
||||
} |
||||
func _getTypeDecoderFromExtension(ctx *ctx, typ reflect2.Type) ValDecoder { |
||||
for _, extension := range extensions { |
||||
decoder := extension.CreateDecoder(typ) |
||||
if decoder != nil { |
||||
return decoder |
||||
} |
||||
} |
||||
decoder := ctx.decoderExtension.CreateDecoder(typ) |
||||
if decoder != nil { |
||||
return decoder |
||||
} |
||||
for _, extension := range ctx.extraExtensions { |
||||
decoder := extension.CreateDecoder(typ) |
||||
if decoder != nil { |
||||
return decoder |
||||
} |
||||
} |
||||
typeName := typ.String() |
||||
decoder = typeDecoders[typeName] |
||||
if decoder != nil { |
||||
return decoder |
||||
} |
||||
if typ.Kind() == reflect.Ptr { |
||||
ptrType := typ.(*reflect2.UnsafePtrType) |
||||
decoder := typeDecoders[ptrType.Elem().String()] |
||||
if decoder != nil { |
||||
return &OptionalDecoder{ptrType.Elem(), decoder} |
||||
} |
||||
} |
||||
return nil |
||||
} |
||||
|
||||
func getTypeEncoderFromExtension(ctx *ctx, typ reflect2.Type) ValEncoder { |
||||
encoder := _getTypeEncoderFromExtension(ctx, typ) |
||||
if encoder != nil { |
||||
for _, extension := range extensions { |
||||
encoder = extension.DecorateEncoder(typ, encoder) |
||||
} |
||||
encoder = ctx.encoderExtension.DecorateEncoder(typ, encoder) |
||||
for _, extension := range ctx.extraExtensions { |
||||
encoder = extension.DecorateEncoder(typ, encoder) |
||||
} |
||||
} |
||||
return encoder |
||||
} |
||||
|
||||
func _getTypeEncoderFromExtension(ctx *ctx, typ reflect2.Type) ValEncoder { |
||||
for _, extension := range extensions { |
||||
encoder := extension.CreateEncoder(typ) |
||||
if encoder != nil { |
||||
return encoder |
||||
} |
||||
} |
||||
encoder := ctx.encoderExtension.CreateEncoder(typ) |
||||
if encoder != nil { |
||||
return encoder |
||||
} |
||||
for _, extension := range ctx.extraExtensions { |
||||
encoder := extension.CreateEncoder(typ) |
||||
if encoder != nil { |
||||
return encoder |
||||
} |
||||
} |
||||
typeName := typ.String() |
||||
encoder = typeEncoders[typeName] |
||||
if encoder != nil { |
||||
return encoder |
||||
} |
||||
if typ.Kind() == reflect.Ptr { |
||||
typePtr := typ.(*reflect2.UnsafePtrType) |
||||
encoder := typeEncoders[typePtr.Elem().String()] |
||||
if encoder != nil { |
||||
return &OptionalEncoder{encoder} |
||||
} |
||||
} |
||||
return nil |
||||
} |
||||
|
||||
func describeStruct(ctx *ctx, typ reflect2.Type) *StructDescriptor { |
||||
structType := typ.(*reflect2.UnsafeStructType) |
||||
embeddedBindings := []*Binding{} |
||||
bindings := []*Binding{} |
||||
for i := 0; i < structType.NumField(); i++ { |
||||
field := structType.Field(i) |
||||
tag, hastag := field.Tag().Lookup(ctx.getTagKey()) |
||||
if ctx.onlyTaggedField && !hastag && !field.Anonymous() { |
||||
continue |
||||
} |
||||
if tag == "-" || field.Name() == "_" { |
||||
continue |
||||
} |
||||
tagParts := strings.Split(tag, ",") |
||||
if field.Anonymous() && (tag == "" || tagParts[0] == "") { |
||||
if field.Type().Kind() == reflect.Struct { |
||||
structDescriptor := describeStruct(ctx, field.Type()) |
||||
for _, binding := range structDescriptor.Fields { |
||||
binding.levels = append([]int{i}, binding.levels...) |
||||
omitempty := binding.Encoder.(*structFieldEncoder).omitempty |
||||
binding.Encoder = &structFieldEncoder{field, binding.Encoder, omitempty} |
||||
binding.Decoder = &structFieldDecoder{field, binding.Decoder} |
||||
embeddedBindings = append(embeddedBindings, binding) |
||||
} |
||||
continue |
||||
} else if field.Type().Kind() == reflect.Ptr { |
||||
ptrType := field.Type().(*reflect2.UnsafePtrType) |
||||
if ptrType.Elem().Kind() == reflect.Struct { |
||||
structDescriptor := describeStruct(ctx, ptrType.Elem()) |
||||
for _, binding := range structDescriptor.Fields { |
||||
binding.levels = append([]int{i}, binding.levels...) |
||||
omitempty := binding.Encoder.(*structFieldEncoder).omitempty |
||||
binding.Encoder = &dereferenceEncoder{binding.Encoder} |
||||
binding.Encoder = &structFieldEncoder{field, binding.Encoder, omitempty} |
||||
binding.Decoder = &dereferenceDecoder{ptrType.Elem(), binding.Decoder} |
||||
binding.Decoder = &structFieldDecoder{field, binding.Decoder} |
||||
embeddedBindings = append(embeddedBindings, binding) |
||||
} |
||||
continue |
||||
} |
||||
} |
||||
} |
||||
fieldNames := calcFieldNames(field.Name(), tagParts[0], tag) |
||||
fieldCacheKey := fmt.Sprintf("%s/%s", typ.String(), field.Name()) |
||||
decoder := fieldDecoders[fieldCacheKey] |
||||
if decoder == nil { |
||||
decoder = decoderOfType(ctx.append(field.Name()), field.Type()) |
||||
} |
||||
encoder := fieldEncoders[fieldCacheKey] |
||||
if encoder == nil { |
||||
encoder = encoderOfType(ctx.append(field.Name()), field.Type()) |
||||
} |
||||
binding := &Binding{ |
||||
Field: field, |
||||
FromNames: fieldNames, |
||||
ToNames: fieldNames, |
||||
Decoder: decoder, |
||||
Encoder: encoder, |
||||
} |
||||
binding.levels = []int{i} |
||||
bindings = append(bindings, binding) |
||||
} |
||||
return createStructDescriptor(ctx, typ, bindings, embeddedBindings) |
||||
} |
||||
func createStructDescriptor(ctx *ctx, typ reflect2.Type, bindings []*Binding, embeddedBindings []*Binding) *StructDescriptor { |
||||
structDescriptor := &StructDescriptor{ |
||||
Type: typ, |
||||
Fields: bindings, |
||||
} |
||||
for _, extension := range extensions { |
||||
extension.UpdateStructDescriptor(structDescriptor) |
||||
} |
||||
ctx.encoderExtension.UpdateStructDescriptor(structDescriptor) |
||||
ctx.decoderExtension.UpdateStructDescriptor(structDescriptor) |
||||
for _, extension := range ctx.extraExtensions { |
||||
extension.UpdateStructDescriptor(structDescriptor) |
||||
} |
||||
processTags(structDescriptor, ctx.frozenConfig) |
||||
// merge normal & embedded bindings & sort with original order
|
||||
allBindings := sortableBindings(append(embeddedBindings, structDescriptor.Fields...)) |
||||
sort.Sort(allBindings) |
||||
structDescriptor.Fields = allBindings |
||||
return structDescriptor |
||||
} |
||||
|
||||
type sortableBindings []*Binding |
||||
|
||||
func (bindings sortableBindings) Len() int { |
||||
return len(bindings) |
||||
} |
||||
|
||||
func (bindings sortableBindings) Less(i, j int) bool { |
||||
left := bindings[i].levels |
||||
right := bindings[j].levels |
||||
k := 0 |
||||
for { |
||||
if left[k] < right[k] { |
||||
return true |
||||
} else if left[k] > right[k] { |
||||
return false |
||||
} |
||||
k++ |
||||
} |
||||
} |
||||
|
||||
func (bindings sortableBindings) Swap(i, j int) { |
||||
bindings[i], bindings[j] = bindings[j], bindings[i] |
||||
} |
||||
|
||||
func processTags(structDescriptor *StructDescriptor, cfg *frozenConfig) { |
||||
for _, binding := range structDescriptor.Fields { |
||||
shouldOmitEmpty := false |
||||
tagParts := strings.Split(binding.Field.Tag().Get(cfg.getTagKey()), ",") |
||||
for _, tagPart := range tagParts[1:] { |
||||
if tagPart == "omitempty" { |
||||
shouldOmitEmpty = true |
||||
} else if tagPart == "string" { |
||||
if binding.Field.Type().Kind() == reflect.String { |
||||
binding.Decoder = &stringModeStringDecoder{binding.Decoder, cfg} |
||||
binding.Encoder = &stringModeStringEncoder{binding.Encoder, cfg} |
||||
} else { |
||||
binding.Decoder = &stringModeNumberDecoder{binding.Decoder} |
||||
binding.Encoder = &stringModeNumberEncoder{binding.Encoder} |
||||
} |
||||
} |
||||
} |
||||
binding.Decoder = &structFieldDecoder{binding.Field, binding.Decoder} |
||||
binding.Encoder = &structFieldEncoder{binding.Field, binding.Encoder, shouldOmitEmpty} |
||||
} |
||||
} |
||||
|
||||
func calcFieldNames(originalFieldName string, tagProvidedFieldName string, wholeTag string) []string { |
||||
// ignore?
|
||||
if wholeTag == "-" { |
||||
return []string{} |
||||
} |
||||
// rename?
|
||||
var fieldNames []string |
||||
if tagProvidedFieldName == "" { |
||||
fieldNames = []string{originalFieldName} |
||||
} else { |
||||
fieldNames = []string{tagProvidedFieldName} |
||||
} |
||||
// private?
|
||||
isNotExported := unicode.IsLower(rune(originalFieldName[0])) || originalFieldName[0] == '_' |
||||
if isNotExported { |
||||
fieldNames = []string{} |
||||
} |
||||
return fieldNames |
||||
} |
||||
@ -0,0 +1,112 @@ |
||||
package jsoniter |
||||
|
||||
import ( |
||||
"encoding/json" |
||||
"github.com/modern-go/reflect2" |
||||
"strconv" |
||||
"unsafe" |
||||
) |
||||
|
||||
type Number string |
||||
|
||||
// String returns the literal text of the number.
|
||||
func (n Number) String() string { return string(n) } |
||||
|
||||
// Float64 returns the number as a float64.
|
||||
func (n Number) Float64() (float64, error) { |
||||
return strconv.ParseFloat(string(n), 64) |
||||
} |
||||
|
||||
// Int64 returns the number as an int64.
|
||||
func (n Number) Int64() (int64, error) { |
||||
return strconv.ParseInt(string(n), 10, 64) |
||||
} |
||||
|
||||
func CastJsonNumber(val interface{}) (string, bool) { |
||||
switch typedVal := val.(type) { |
||||
case json.Number: |
||||
return string(typedVal), true |
||||
case Number: |
||||
return string(typedVal), true |
||||
} |
||||
return "", false |
||||
} |
||||
|
||||
var jsonNumberType = reflect2.TypeOfPtr((*json.Number)(nil)).Elem() |
||||
var jsoniterNumberType = reflect2.TypeOfPtr((*Number)(nil)).Elem() |
||||
|
||||
func createDecoderOfJsonNumber(ctx *ctx, typ reflect2.Type) ValDecoder { |
||||
if typ.AssignableTo(jsonNumberType) { |
||||
return &jsonNumberCodec{} |
||||
} |
||||
if typ.AssignableTo(jsoniterNumberType) { |
||||
return &jsoniterNumberCodec{} |
||||
} |
||||
return nil |
||||
} |
||||
|
||||
func createEncoderOfJsonNumber(ctx *ctx, typ reflect2.Type) ValEncoder { |
||||
if typ.AssignableTo(jsonNumberType) { |
||||
return &jsonNumberCodec{} |
||||
} |
||||
if typ.AssignableTo(jsoniterNumberType) { |
||||
return &jsoniterNumberCodec{} |
||||
} |
||||
return nil |
||||
} |
||||
|
||||
type jsonNumberCodec struct { |
||||
} |
||||
|
||||
func (codec *jsonNumberCodec) Decode(ptr unsafe.Pointer, iter *Iterator) { |
||||
switch iter.WhatIsNext() { |
||||
case StringValue: |
||||
*((*json.Number)(ptr)) = json.Number(iter.ReadString()) |
||||
case NilValue: |
||||
iter.skipFourBytes('n', 'u', 'l', 'l') |
||||
*((*json.Number)(ptr)) = "" |
||||
default: |
||||
*((*json.Number)(ptr)) = json.Number([]byte(iter.readNumberAsString())) |
||||
} |
||||
} |
||||
|
||||
func (codec *jsonNumberCodec) Encode(ptr unsafe.Pointer, stream *Stream) { |
||||
number := *((*json.Number)(ptr)) |
||||
if len(number) == 0 { |
||||
stream.writeByte('0') |
||||
} else { |
||||
stream.WriteRaw(string(number)) |
||||
} |
||||
} |
||||
|
||||
func (codec *jsonNumberCodec) IsEmpty(ptr unsafe.Pointer) bool { |
||||
return len(*((*json.Number)(ptr))) == 0 |
||||
} |
||||
|
||||
type jsoniterNumberCodec struct { |
||||
} |
||||
|
||||
func (codec *jsoniterNumberCodec) Decode(ptr unsafe.Pointer, iter *Iterator) { |
||||
switch iter.WhatIsNext() { |
||||
case StringValue: |
||||
*((*Number)(ptr)) = Number(iter.ReadString()) |
||||
case NilValue: |
||||
iter.skipFourBytes('n', 'u', 'l', 'l') |
||||
*((*Number)(ptr)) = "" |
||||
default: |
||||
*((*Number)(ptr)) = Number([]byte(iter.readNumberAsString())) |
||||
} |
||||
} |
||||
|
||||
func (codec *jsoniterNumberCodec) Encode(ptr unsafe.Pointer, stream *Stream) { |
||||
number := *((*Number)(ptr)) |
||||
if len(number) == 0 { |
||||
stream.writeByte('0') |
||||
} else { |
||||
stream.WriteRaw(string(number)) |
||||
} |
||||
} |
||||
|
||||
func (codec *jsoniterNumberCodec) IsEmpty(ptr unsafe.Pointer) bool { |
||||
return len(*((*Number)(ptr))) == 0 |
||||
} |
||||
@ -0,0 +1,60 @@ |
||||
package jsoniter |
||||
|
||||
import ( |
||||
"encoding/json" |
||||
"github.com/modern-go/reflect2" |
||||
"unsafe" |
||||
) |
||||
|
||||
var jsonRawMessageType = reflect2.TypeOfPtr((*json.RawMessage)(nil)).Elem() |
||||
var jsoniterRawMessageType = reflect2.TypeOfPtr((*RawMessage)(nil)).Elem() |
||||
|
||||
func createEncoderOfJsonRawMessage(ctx *ctx, typ reflect2.Type) ValEncoder { |
||||
if typ == jsonRawMessageType { |
||||
return &jsonRawMessageCodec{} |
||||
} |
||||
if typ == jsoniterRawMessageType { |
||||
return &jsoniterRawMessageCodec{} |
||||
} |
||||
return nil |
||||
} |
||||
|
||||
func createDecoderOfJsonRawMessage(ctx *ctx, typ reflect2.Type) ValDecoder { |
||||
if typ == jsonRawMessageType { |
||||
return &jsonRawMessageCodec{} |
||||
} |
||||
if typ == jsoniterRawMessageType { |
||||
return &jsoniterRawMessageCodec{} |
||||
} |
||||
return nil |
||||
} |
||||
|
||||
type jsonRawMessageCodec struct { |
||||
} |
||||
|
||||
func (codec *jsonRawMessageCodec) Decode(ptr unsafe.Pointer, iter *Iterator) { |
||||
*((*json.RawMessage)(ptr)) = json.RawMessage(iter.SkipAndReturnBytes()) |
||||
} |
||||
|
||||
func (codec *jsonRawMessageCodec) Encode(ptr unsafe.Pointer, stream *Stream) { |
||||
stream.WriteRaw(string(*((*json.RawMessage)(ptr)))) |
||||
} |
||||
|
||||
func (codec *jsonRawMessageCodec) IsEmpty(ptr unsafe.Pointer) bool { |
||||
return len(*((*json.RawMessage)(ptr))) == 0 |
||||
} |
||||
|
||||
type jsoniterRawMessageCodec struct { |
||||
} |
||||
|
||||
func (codec *jsoniterRawMessageCodec) Decode(ptr unsafe.Pointer, iter *Iterator) { |
||||
*((*RawMessage)(ptr)) = RawMessage(iter.SkipAndReturnBytes()) |
||||
} |
||||
|
||||
func (codec *jsoniterRawMessageCodec) Encode(ptr unsafe.Pointer, stream *Stream) { |
||||
stream.WriteRaw(string(*((*RawMessage)(ptr)))) |
||||
} |
||||
|
||||
func (codec *jsoniterRawMessageCodec) IsEmpty(ptr unsafe.Pointer) bool { |
||||
return len(*((*RawMessage)(ptr))) == 0 |
||||
} |
||||
@ -0,0 +1,346 @@ |
||||
package jsoniter |
||||
|
||||
import ( |
||||
"fmt" |
||||
"github.com/modern-go/reflect2" |
||||
"io" |
||||
"reflect" |
||||
"sort" |
||||
"unsafe" |
||||
) |
||||
|
||||
func decoderOfMap(ctx *ctx, typ reflect2.Type) ValDecoder { |
||||
mapType := typ.(*reflect2.UnsafeMapType) |
||||
keyDecoder := decoderOfMapKey(ctx.append("[mapKey]"), mapType.Key()) |
||||
elemDecoder := decoderOfType(ctx.append("[mapElem]"), mapType.Elem()) |
||||
return &mapDecoder{ |
||||
mapType: mapType, |
||||
keyType: mapType.Key(), |
||||
elemType: mapType.Elem(), |
||||
keyDecoder: keyDecoder, |
||||
elemDecoder: elemDecoder, |
||||
} |
||||
} |
||||
|
||||
func encoderOfMap(ctx *ctx, typ reflect2.Type) ValEncoder { |
||||
mapType := typ.(*reflect2.UnsafeMapType) |
||||
if ctx.sortMapKeys { |
||||
return &sortKeysMapEncoder{ |
||||
mapType: mapType, |
||||
keyEncoder: encoderOfMapKey(ctx.append("[mapKey]"), mapType.Key()), |
||||
elemEncoder: encoderOfType(ctx.append("[mapElem]"), mapType.Elem()), |
||||
} |
||||
} |
||||
return &mapEncoder{ |
||||
mapType: mapType, |
||||
keyEncoder: encoderOfMapKey(ctx.append("[mapKey]"), mapType.Key()), |
||||
elemEncoder: encoderOfType(ctx.append("[mapElem]"), mapType.Elem()), |
||||
} |
||||
} |
||||
|
||||
func decoderOfMapKey(ctx *ctx, typ reflect2.Type) ValDecoder { |
||||
decoder := ctx.decoderExtension.CreateMapKeyDecoder(typ) |
||||
if decoder != nil { |
||||
return decoder |
||||
} |
||||
for _, extension := range ctx.extraExtensions { |
||||
decoder := extension.CreateMapKeyDecoder(typ) |
||||
if decoder != nil { |
||||
return decoder |
||||
} |
||||
} |
||||
|
||||
ptrType := reflect2.PtrTo(typ) |
||||
if ptrType.Implements(unmarshalerType) { |
||||
return &referenceDecoder{ |
||||
&unmarshalerDecoder{ |
||||
valType: ptrType, |
||||
}, |
||||
} |
||||
} |
||||
if typ.Implements(unmarshalerType) { |
||||
return &unmarshalerDecoder{ |
||||
valType: typ, |
||||
} |
||||
} |
||||
if ptrType.Implements(textUnmarshalerType) { |
||||
return &referenceDecoder{ |
||||
&textUnmarshalerDecoder{ |
||||
valType: ptrType, |
||||
}, |
||||
} |
||||
} |
||||
if typ.Implements(textUnmarshalerType) { |
||||
return &textUnmarshalerDecoder{ |
||||
valType: typ, |
||||
} |
||||
} |
||||
|
||||
switch typ.Kind() { |
||||
case reflect.String: |
||||
return decoderOfType(ctx, reflect2.DefaultTypeOfKind(reflect.String)) |
||||
case reflect.Bool, |
||||
reflect.Uint8, reflect.Int8, |
||||
reflect.Uint16, reflect.Int16, |
||||
reflect.Uint32, reflect.Int32, |
||||
reflect.Uint64, reflect.Int64, |
||||
reflect.Uint, reflect.Int, |
||||
reflect.Float32, reflect.Float64, |
||||
reflect.Uintptr: |
||||
typ = reflect2.DefaultTypeOfKind(typ.Kind()) |
||||
return &numericMapKeyDecoder{decoderOfType(ctx, typ)} |
||||
default: |
||||
return &lazyErrorDecoder{err: fmt.Errorf("unsupported map key type: %v", typ)} |
||||
} |
||||
} |
||||
|
||||
func encoderOfMapKey(ctx *ctx, typ reflect2.Type) ValEncoder { |
||||
encoder := ctx.encoderExtension.CreateMapKeyEncoder(typ) |
||||
if encoder != nil { |
||||
return encoder |
||||
} |
||||
for _, extension := range ctx.extraExtensions { |
||||
encoder := extension.CreateMapKeyEncoder(typ) |
||||
if encoder != nil { |
||||
return encoder |
||||
} |
||||
} |
||||
|
||||
if typ == textMarshalerType { |
||||
return &directTextMarshalerEncoder{ |
||||
stringEncoder: ctx.EncoderOf(reflect2.TypeOf("")), |
||||
} |
||||
} |
||||
if typ.Implements(textMarshalerType) { |
||||
return &textMarshalerEncoder{ |
||||
valType: typ, |
||||
stringEncoder: ctx.EncoderOf(reflect2.TypeOf("")), |
||||
} |
||||
} |
||||
|
||||
switch typ.Kind() { |
||||
case reflect.String: |
||||
return encoderOfType(ctx, reflect2.DefaultTypeOfKind(reflect.String)) |
||||
case reflect.Bool, |
||||
reflect.Uint8, reflect.Int8, |
||||
reflect.Uint16, reflect.Int16, |
||||
reflect.Uint32, reflect.Int32, |
||||
reflect.Uint64, reflect.Int64, |
||||
reflect.Uint, reflect.Int, |
||||
reflect.Float32, reflect.Float64, |
||||
reflect.Uintptr: |
||||
typ = reflect2.DefaultTypeOfKind(typ.Kind()) |
||||
return &numericMapKeyEncoder{encoderOfType(ctx, typ)} |
||||
default: |
||||
if typ.Kind() == reflect.Interface { |
||||
return &dynamicMapKeyEncoder{ctx, typ} |
||||
} |
||||
return &lazyErrorEncoder{err: fmt.Errorf("unsupported map key type: %v", typ)} |
||||
} |
||||
} |
||||
|
||||
type mapDecoder struct { |
||||
mapType *reflect2.UnsafeMapType |
||||
keyType reflect2.Type |
||||
elemType reflect2.Type |
||||
keyDecoder ValDecoder |
||||
elemDecoder ValDecoder |
||||
} |
||||
|
||||
func (decoder *mapDecoder) Decode(ptr unsafe.Pointer, iter *Iterator) { |
||||
mapType := decoder.mapType |
||||
c := iter.nextToken() |
||||
if c == 'n' { |
||||
iter.skipThreeBytes('u', 'l', 'l') |
||||
*(*unsafe.Pointer)(ptr) = nil |
||||
mapType.UnsafeSet(ptr, mapType.UnsafeNew()) |
||||
return |
||||
} |
||||
if mapType.UnsafeIsNil(ptr) { |
||||
mapType.UnsafeSet(ptr, mapType.UnsafeMakeMap(0)) |
||||
} |
||||
if c != '{' { |
||||
iter.ReportError("ReadMapCB", `expect { or n, but found `+string([]byte{c})) |
||||
return |
||||
} |
||||
c = iter.nextToken() |
||||
if c == '}' { |
||||
return |
||||
} |
||||
iter.unreadByte() |
||||
key := decoder.keyType.UnsafeNew() |
||||
decoder.keyDecoder.Decode(key, iter) |
||||
c = iter.nextToken() |
||||
if c != ':' { |
||||
iter.ReportError("ReadMapCB", "expect : after object field, but found "+string([]byte{c})) |
||||
return |
||||
} |
||||
elem := decoder.elemType.UnsafeNew() |
||||
decoder.elemDecoder.Decode(elem, iter) |
||||
decoder.mapType.UnsafeSetIndex(ptr, key, elem) |
||||
for c = iter.nextToken(); c == ','; c = iter.nextToken() { |
||||
key := decoder.keyType.UnsafeNew() |
||||
decoder.keyDecoder.Decode(key, iter) |
||||
c = iter.nextToken() |
||||
if c != ':' { |
||||
iter.ReportError("ReadMapCB", "expect : after object field, but found "+string([]byte{c})) |
||||
return |
||||
} |
||||
elem := decoder.elemType.UnsafeNew() |
||||
decoder.elemDecoder.Decode(elem, iter) |
||||
decoder.mapType.UnsafeSetIndex(ptr, key, elem) |
||||
} |
||||
if c != '}' { |
||||
iter.ReportError("ReadMapCB", `expect }, but found `+string([]byte{c})) |
||||
} |
||||
} |
||||
|
||||
type numericMapKeyDecoder struct { |
||||
decoder ValDecoder |
||||
} |
||||
|
||||
func (decoder *numericMapKeyDecoder) Decode(ptr unsafe.Pointer, iter *Iterator) { |
||||
c := iter.nextToken() |
||||
if c != '"' { |
||||
iter.ReportError("ReadMapCB", `expect ", but found `+string([]byte{c})) |
||||
return |
||||
} |
||||
decoder.decoder.Decode(ptr, iter) |
||||
c = iter.nextToken() |
||||
if c != '"' { |
||||
iter.ReportError("ReadMapCB", `expect ", but found `+string([]byte{c})) |
||||
return |
||||
} |
||||
} |
||||
|
||||
type numericMapKeyEncoder struct { |
||||
encoder ValEncoder |
||||
} |
||||
|
||||
func (encoder *numericMapKeyEncoder) Encode(ptr unsafe.Pointer, stream *Stream) { |
||||
stream.writeByte('"') |
||||
encoder.encoder.Encode(ptr, stream) |
||||
stream.writeByte('"') |
||||
} |
||||
|
||||
func (encoder *numericMapKeyEncoder) IsEmpty(ptr unsafe.Pointer) bool { |
||||
return false |
||||
} |
||||
|
||||
type dynamicMapKeyEncoder struct { |
||||
ctx *ctx |
||||
valType reflect2.Type |
||||
} |
||||
|
||||
func (encoder *dynamicMapKeyEncoder) Encode(ptr unsafe.Pointer, stream *Stream) { |
||||
obj := encoder.valType.UnsafeIndirect(ptr) |
||||
encoderOfMapKey(encoder.ctx, reflect2.TypeOf(obj)).Encode(reflect2.PtrOf(obj), stream) |
||||
} |
||||
|
||||
func (encoder *dynamicMapKeyEncoder) IsEmpty(ptr unsafe.Pointer) bool { |
||||
obj := encoder.valType.UnsafeIndirect(ptr) |
||||
return encoderOfMapKey(encoder.ctx, reflect2.TypeOf(obj)).IsEmpty(reflect2.PtrOf(obj)) |
||||
} |
||||
|
||||
type mapEncoder struct { |
||||
mapType *reflect2.UnsafeMapType |
||||
keyEncoder ValEncoder |
||||
elemEncoder ValEncoder |
||||
} |
||||
|
||||
func (encoder *mapEncoder) Encode(ptr unsafe.Pointer, stream *Stream) { |
||||
if *(*unsafe.Pointer)(ptr) == nil { |
||||
stream.WriteNil() |
||||
return |
||||
} |
||||
stream.WriteObjectStart() |
||||
iter := encoder.mapType.UnsafeIterate(ptr) |
||||
for i := 0; iter.HasNext(); i++ { |
||||
if i != 0 { |
||||
stream.WriteMore() |
||||
} |
||||
key, elem := iter.UnsafeNext() |
||||
encoder.keyEncoder.Encode(key, stream) |
||||
if stream.indention > 0 { |
||||
stream.writeTwoBytes(byte(':'), byte(' ')) |
||||
} else { |
||||
stream.writeByte(':') |
||||
} |
||||
encoder.elemEncoder.Encode(elem, stream) |
||||
} |
||||
stream.WriteObjectEnd() |
||||
} |
||||
|
||||
func (encoder *mapEncoder) IsEmpty(ptr unsafe.Pointer) bool { |
||||
iter := encoder.mapType.UnsafeIterate(ptr) |
||||
return !iter.HasNext() |
||||
} |
||||
|
||||
type sortKeysMapEncoder struct { |
||||
mapType *reflect2.UnsafeMapType |
||||
keyEncoder ValEncoder |
||||
elemEncoder ValEncoder |
||||
} |
||||
|
||||
func (encoder *sortKeysMapEncoder) Encode(ptr unsafe.Pointer, stream *Stream) { |
||||
if *(*unsafe.Pointer)(ptr) == nil { |
||||
stream.WriteNil() |
||||
return |
||||
} |
||||
stream.WriteObjectStart() |
||||
mapIter := encoder.mapType.UnsafeIterate(ptr) |
||||
subStream := stream.cfg.BorrowStream(nil) |
||||
subStream.Attachment = stream.Attachment |
||||
subIter := stream.cfg.BorrowIterator(nil) |
||||
keyValues := encodedKeyValues{} |
||||
for mapIter.HasNext() { |
||||
key, elem := mapIter.UnsafeNext() |
||||
subStreamIndex := subStream.Buffered() |
||||
encoder.keyEncoder.Encode(key, subStream) |
||||
if subStream.Error != nil && subStream.Error != io.EOF && stream.Error == nil { |
||||
stream.Error = subStream.Error |
||||
} |
||||
encodedKey := subStream.Buffer()[subStreamIndex:] |
||||
subIter.ResetBytes(encodedKey) |
||||
decodedKey := subIter.ReadString() |
||||
if stream.indention > 0 { |
||||
subStream.writeTwoBytes(byte(':'), byte(' ')) |
||||
} else { |
||||
subStream.writeByte(':') |
||||
} |
||||
encoder.elemEncoder.Encode(elem, subStream) |
||||
keyValues = append(keyValues, encodedKV{ |
||||
key: decodedKey, |
||||
keyValue: subStream.Buffer()[subStreamIndex:], |
||||
}) |
||||
} |
||||
sort.Sort(keyValues) |
||||
for i, keyValue := range keyValues { |
||||
if i != 0 { |
||||
stream.WriteMore() |
||||
} |
||||
stream.Write(keyValue.keyValue) |
||||
} |
||||
if subStream.Error != nil && stream.Error == nil { |
||||
stream.Error = subStream.Error |
||||
} |
||||
stream.WriteObjectEnd() |
||||
stream.cfg.ReturnStream(subStream) |
||||
stream.cfg.ReturnIterator(subIter) |
||||
} |
||||
|
||||
func (encoder *sortKeysMapEncoder) IsEmpty(ptr unsafe.Pointer) bool { |
||||
iter := encoder.mapType.UnsafeIterate(ptr) |
||||
return !iter.HasNext() |
||||
} |
||||
|
||||
type encodedKeyValues []encodedKV |
||||
|
||||
type encodedKV struct { |
||||
key string |
||||
keyValue []byte |
||||
} |
||||
|
||||
func (sv encodedKeyValues) Len() int { return len(sv) } |
||||
func (sv encodedKeyValues) Swap(i, j int) { sv[i], sv[j] = sv[j], sv[i] } |
||||
func (sv encodedKeyValues) Less(i, j int) bool { return sv[i].key < sv[j].key } |
||||
@ -0,0 +1,225 @@ |
||||
package jsoniter |
||||
|
||||
import ( |
||||
"encoding" |
||||
"encoding/json" |
||||
"unsafe" |
||||
|
||||
"github.com/modern-go/reflect2" |
||||
) |
||||
|
||||
var marshalerType = reflect2.TypeOfPtr((*json.Marshaler)(nil)).Elem() |
||||
var unmarshalerType = reflect2.TypeOfPtr((*json.Unmarshaler)(nil)).Elem() |
||||
var textMarshalerType = reflect2.TypeOfPtr((*encoding.TextMarshaler)(nil)).Elem() |
||||
var textUnmarshalerType = reflect2.TypeOfPtr((*encoding.TextUnmarshaler)(nil)).Elem() |
||||
|
||||
func createDecoderOfMarshaler(ctx *ctx, typ reflect2.Type) ValDecoder { |
||||
ptrType := reflect2.PtrTo(typ) |
||||
if ptrType.Implements(unmarshalerType) { |
||||
return &referenceDecoder{ |
||||
&unmarshalerDecoder{ptrType}, |
||||
} |
||||
} |
||||
if ptrType.Implements(textUnmarshalerType) { |
||||
return &referenceDecoder{ |
||||
&textUnmarshalerDecoder{ptrType}, |
||||
} |
||||
} |
||||
return nil |
||||
} |
||||
|
||||
func createEncoderOfMarshaler(ctx *ctx, typ reflect2.Type) ValEncoder { |
||||
if typ == marshalerType { |
||||
checkIsEmpty := createCheckIsEmpty(ctx, typ) |
||||
var encoder ValEncoder = &directMarshalerEncoder{ |
||||
checkIsEmpty: checkIsEmpty, |
||||
} |
||||
return encoder |
||||
} |
||||
if typ.Implements(marshalerType) { |
||||
checkIsEmpty := createCheckIsEmpty(ctx, typ) |
||||
var encoder ValEncoder = &marshalerEncoder{ |
||||
valType: typ, |
||||
checkIsEmpty: checkIsEmpty, |
||||
} |
||||
return encoder |
||||
} |
||||
ptrType := reflect2.PtrTo(typ) |
||||
if ctx.prefix != "" && ptrType.Implements(marshalerType) { |
||||
checkIsEmpty := createCheckIsEmpty(ctx, ptrType) |
||||
var encoder ValEncoder = &marshalerEncoder{ |
||||
valType: ptrType, |
||||
checkIsEmpty: checkIsEmpty, |
||||
} |
||||
return &referenceEncoder{encoder} |
||||
} |
||||
if typ == textMarshalerType { |
||||
checkIsEmpty := createCheckIsEmpty(ctx, typ) |
||||
var encoder ValEncoder = &directTextMarshalerEncoder{ |
||||
checkIsEmpty: checkIsEmpty, |
||||
stringEncoder: ctx.EncoderOf(reflect2.TypeOf("")), |
||||
} |
||||
return encoder |
||||
} |
||||
if typ.Implements(textMarshalerType) { |
||||
checkIsEmpty := createCheckIsEmpty(ctx, typ) |
||||
var encoder ValEncoder = &textMarshalerEncoder{ |
||||
valType: typ, |
||||
stringEncoder: ctx.EncoderOf(reflect2.TypeOf("")), |
||||
checkIsEmpty: checkIsEmpty, |
||||
} |
||||
return encoder |
||||
} |
||||
// if prefix is empty, the type is the root type
|
||||
if ctx.prefix != "" && ptrType.Implements(textMarshalerType) { |
||||
checkIsEmpty := createCheckIsEmpty(ctx, ptrType) |
||||
var encoder ValEncoder = &textMarshalerEncoder{ |
||||
valType: ptrType, |
||||
stringEncoder: ctx.EncoderOf(reflect2.TypeOf("")), |
||||
checkIsEmpty: checkIsEmpty, |
||||
} |
||||
return &referenceEncoder{encoder} |
||||
} |
||||
return nil |
||||
} |
||||
|
||||
type marshalerEncoder struct { |
||||
checkIsEmpty checkIsEmpty |
||||
valType reflect2.Type |
||||
} |
||||
|
||||
func (encoder *marshalerEncoder) Encode(ptr unsafe.Pointer, stream *Stream) { |
||||
obj := encoder.valType.UnsafeIndirect(ptr) |
||||
if encoder.valType.IsNullable() && reflect2.IsNil(obj) { |
||||
stream.WriteNil() |
||||
return |
||||
} |
||||
marshaler := obj.(json.Marshaler) |
||||
bytes, err := marshaler.MarshalJSON() |
||||
if err != nil { |
||||
stream.Error = err |
||||
} else { |
||||
// html escape was already done by jsoniter
|
||||
// but the extra '\n' should be trimed
|
||||
l := len(bytes) |
||||
if l > 0 && bytes[l-1] == '\n' { |
||||
bytes = bytes[:l-1] |
||||
} |
||||
stream.Write(bytes) |
||||
} |
||||
} |
||||
|
||||
func (encoder *marshalerEncoder) IsEmpty(ptr unsafe.Pointer) bool { |
||||
return encoder.checkIsEmpty.IsEmpty(ptr) |
||||
} |
||||
|
||||
type directMarshalerEncoder struct { |
||||
checkIsEmpty checkIsEmpty |
||||
} |
||||
|
||||
func (encoder *directMarshalerEncoder) Encode(ptr unsafe.Pointer, stream *Stream) { |
||||
marshaler := *(*json.Marshaler)(ptr) |
||||
if marshaler == nil { |
||||
stream.WriteNil() |
||||
return |
||||
} |
||||
bytes, err := marshaler.MarshalJSON() |
||||
if err != nil { |
||||
stream.Error = err |
||||
} else { |
||||
stream.Write(bytes) |
||||
} |
||||
} |
||||
|
||||
func (encoder *directMarshalerEncoder) IsEmpty(ptr unsafe.Pointer) bool { |
||||
return encoder.checkIsEmpty.IsEmpty(ptr) |
||||
} |
||||
|
||||
type textMarshalerEncoder struct { |
||||
valType reflect2.Type |
||||
stringEncoder ValEncoder |
||||
checkIsEmpty checkIsEmpty |
||||
} |
||||
|
||||
func (encoder *textMarshalerEncoder) Encode(ptr unsafe.Pointer, stream *Stream) { |
||||
obj := encoder.valType.UnsafeIndirect(ptr) |
||||
if encoder.valType.IsNullable() && reflect2.IsNil(obj) { |
||||
stream.WriteNil() |
||||
return |
||||
} |
||||
marshaler := (obj).(encoding.TextMarshaler) |
||||
bytes, err := marshaler.MarshalText() |
||||
if err != nil { |
||||
stream.Error = err |
||||
} else { |
||||
str := string(bytes) |
||||
encoder.stringEncoder.Encode(unsafe.Pointer(&str), stream) |
||||
} |
||||
} |
||||
|
||||
func (encoder *textMarshalerEncoder) IsEmpty(ptr unsafe.Pointer) bool { |
||||
return encoder.checkIsEmpty.IsEmpty(ptr) |
||||
} |
||||
|
||||
type directTextMarshalerEncoder struct { |
||||
stringEncoder ValEncoder |
||||
checkIsEmpty checkIsEmpty |
||||
} |
||||
|
||||
func (encoder *directTextMarshalerEncoder) Encode(ptr unsafe.Pointer, stream *Stream) { |
||||
marshaler := *(*encoding.TextMarshaler)(ptr) |
||||
if marshaler == nil { |
||||
stream.WriteNil() |
||||
return |
||||
} |
||||
bytes, err := marshaler.MarshalText() |
||||
if err != nil { |
||||
stream.Error = err |
||||
} else { |
||||
str := string(bytes) |
||||
encoder.stringEncoder.Encode(unsafe.Pointer(&str), stream) |
||||
} |
||||
} |
||||
|
||||
func (encoder *directTextMarshalerEncoder) IsEmpty(ptr unsafe.Pointer) bool { |
||||
return encoder.checkIsEmpty.IsEmpty(ptr) |
||||
} |
||||
|
||||
type unmarshalerDecoder struct { |
||||
valType reflect2.Type |
||||
} |
||||
|
||||
func (decoder *unmarshalerDecoder) Decode(ptr unsafe.Pointer, iter *Iterator) { |
||||
valType := decoder.valType |
||||
obj := valType.UnsafeIndirect(ptr) |
||||
unmarshaler := obj.(json.Unmarshaler) |
||||
iter.nextToken() |
||||
iter.unreadByte() // skip spaces
|
||||
bytes := iter.SkipAndReturnBytes() |
||||
err := unmarshaler.UnmarshalJSON(bytes) |
||||
if err != nil { |
||||
iter.ReportError("unmarshalerDecoder", err.Error()) |
||||
} |
||||
} |
||||
|
||||
type textUnmarshalerDecoder struct { |
||||
valType reflect2.Type |
||||
} |
||||
|
||||
func (decoder *textUnmarshalerDecoder) Decode(ptr unsafe.Pointer, iter *Iterator) { |
||||
valType := decoder.valType |
||||
obj := valType.UnsafeIndirect(ptr) |
||||
if reflect2.IsNil(obj) { |
||||
ptrType := valType.(*reflect2.UnsafePtrType) |
||||
elemType := ptrType.Elem() |
||||
elem := elemType.UnsafeNew() |
||||
ptrType.UnsafeSet(ptr, unsafe.Pointer(&elem)) |
||||
obj = valType.UnsafeIndirect(ptr) |
||||
} |
||||
unmarshaler := (obj).(encoding.TextUnmarshaler) |
||||
str := iter.ReadString() |
||||
err := unmarshaler.UnmarshalText([]byte(str)) |
||||
if err != nil { |
||||
iter.ReportError("textUnmarshalerDecoder", err.Error()) |
||||
} |
||||
} |
||||
@ -0,0 +1,453 @@ |
||||
package jsoniter |
||||
|
||||
import ( |
||||
"encoding/base64" |
||||
"reflect" |
||||
"strconv" |
||||
"unsafe" |
||||
|
||||
"github.com/modern-go/reflect2" |
||||
) |
||||
|
||||
const ptrSize = 32 << uintptr(^uintptr(0)>>63) |
||||
|
||||
func createEncoderOfNative(ctx *ctx, typ reflect2.Type) ValEncoder { |
||||
if typ.Kind() == reflect.Slice && typ.(reflect2.SliceType).Elem().Kind() == reflect.Uint8 { |
||||
sliceDecoder := decoderOfSlice(ctx, typ) |
||||
return &base64Codec{sliceDecoder: sliceDecoder} |
||||
} |
||||
typeName := typ.String() |
||||
kind := typ.Kind() |
||||
switch kind { |
||||
case reflect.String: |
||||
if typeName != "string" { |
||||
return encoderOfType(ctx, reflect2.TypeOfPtr((*string)(nil)).Elem()) |
||||
} |
||||
return &stringCodec{} |
||||
case reflect.Int: |
||||
if typeName != "int" { |
||||
return encoderOfType(ctx, reflect2.TypeOfPtr((*int)(nil)).Elem()) |
||||
} |
||||
if strconv.IntSize == 32 { |
||||
return &int32Codec{} |
||||
} |
||||
return &int64Codec{} |
||||
case reflect.Int8: |
||||
if typeName != "int8" { |
||||
return encoderOfType(ctx, reflect2.TypeOfPtr((*int8)(nil)).Elem()) |
||||
} |
||||
return &int8Codec{} |
||||
case reflect.Int16: |
||||
if typeName != "int16" { |
||||
return encoderOfType(ctx, reflect2.TypeOfPtr((*int16)(nil)).Elem()) |
||||
} |
||||
return &int16Codec{} |
||||
case reflect.Int32: |
||||
if typeName != "int32" { |
||||
return encoderOfType(ctx, reflect2.TypeOfPtr((*int32)(nil)).Elem()) |
||||
} |
||||
return &int32Codec{} |
||||
case reflect.Int64: |
||||
if typeName != "int64" { |
||||
return encoderOfType(ctx, reflect2.TypeOfPtr((*int64)(nil)).Elem()) |
||||
} |
||||
return &int64Codec{} |
||||
case reflect.Uint: |
||||
if typeName != "uint" { |
||||
return encoderOfType(ctx, reflect2.TypeOfPtr((*uint)(nil)).Elem()) |
||||
} |
||||
if strconv.IntSize == 32 { |
||||
return &uint32Codec{} |
||||
} |
||||
return &uint64Codec{} |
||||
case reflect.Uint8: |
||||
if typeName != "uint8" { |
||||
return encoderOfType(ctx, reflect2.TypeOfPtr((*uint8)(nil)).Elem()) |
||||
} |
||||
return &uint8Codec{} |
||||
case reflect.Uint16: |
||||
if typeName != "uint16" { |
||||
return encoderOfType(ctx, reflect2.TypeOfPtr((*uint16)(nil)).Elem()) |
||||
} |
||||
return &uint16Codec{} |
||||
case reflect.Uint32: |
||||
if typeName != "uint32" { |
||||
return encoderOfType(ctx, reflect2.TypeOfPtr((*uint32)(nil)).Elem()) |
||||
} |
||||
return &uint32Codec{} |
||||
case reflect.Uintptr: |
||||
if typeName != "uintptr" { |
||||
return encoderOfType(ctx, reflect2.TypeOfPtr((*uintptr)(nil)).Elem()) |
||||
} |
||||
if ptrSize == 32 { |
||||
return &uint32Codec{} |
||||
} |
||||
return &uint64Codec{} |
||||
case reflect.Uint64: |
||||
if typeName != "uint64" { |
||||
return encoderOfType(ctx, reflect2.TypeOfPtr((*uint64)(nil)).Elem()) |
||||
} |
||||
return &uint64Codec{} |
||||
case reflect.Float32: |
||||
if typeName != "float32" { |
||||
return encoderOfType(ctx, reflect2.TypeOfPtr((*float32)(nil)).Elem()) |
||||
} |
||||
return &float32Codec{} |
||||
case reflect.Float64: |
||||
if typeName != "float64" { |
||||
return encoderOfType(ctx, reflect2.TypeOfPtr((*float64)(nil)).Elem()) |
||||
} |
||||
return &float64Codec{} |
||||
case reflect.Bool: |
||||
if typeName != "bool" { |
||||
return encoderOfType(ctx, reflect2.TypeOfPtr((*bool)(nil)).Elem()) |
||||
} |
||||
return &boolCodec{} |
||||
} |
||||
return nil |
||||
} |
||||
|
||||
func createDecoderOfNative(ctx *ctx, typ reflect2.Type) ValDecoder { |
||||
if typ.Kind() == reflect.Slice && typ.(reflect2.SliceType).Elem().Kind() == reflect.Uint8 { |
||||
sliceDecoder := decoderOfSlice(ctx, typ) |
||||
return &base64Codec{sliceDecoder: sliceDecoder} |
||||
} |
||||
typeName := typ.String() |
||||
switch typ.Kind() { |
||||
case reflect.String: |
||||
if typeName != "string" { |
||||
return decoderOfType(ctx, reflect2.TypeOfPtr((*string)(nil)).Elem()) |
||||
} |
||||
return &stringCodec{} |
||||
case reflect.Int: |
||||
if typeName != "int" { |
||||
return decoderOfType(ctx, reflect2.TypeOfPtr((*int)(nil)).Elem()) |
||||
} |
||||
if strconv.IntSize == 32 { |
||||
return &int32Codec{} |
||||
} |
||||
return &int64Codec{} |
||||
case reflect.Int8: |
||||
if typeName != "int8" { |
||||
return decoderOfType(ctx, reflect2.TypeOfPtr((*int8)(nil)).Elem()) |
||||
} |
||||
return &int8Codec{} |
||||
case reflect.Int16: |
||||
if typeName != "int16" { |
||||
return decoderOfType(ctx, reflect2.TypeOfPtr((*int16)(nil)).Elem()) |
||||
} |
||||
return &int16Codec{} |
||||
case reflect.Int32: |
||||
if typeName != "int32" { |
||||
return decoderOfType(ctx, reflect2.TypeOfPtr((*int32)(nil)).Elem()) |
||||
} |
||||
return &int32Codec{} |
||||
case reflect.Int64: |
||||
if typeName != "int64" { |
||||
return decoderOfType(ctx, reflect2.TypeOfPtr((*int64)(nil)).Elem()) |
||||
} |
||||
return &int64Codec{} |
||||
case reflect.Uint: |
||||
if typeName != "uint" { |
||||
return decoderOfType(ctx, reflect2.TypeOfPtr((*uint)(nil)).Elem()) |
||||
} |
||||
if strconv.IntSize == 32 { |
||||
return &uint32Codec{} |
||||
} |
||||
return &uint64Codec{} |
||||
case reflect.Uint8: |
||||
if typeName != "uint8" { |
||||
return decoderOfType(ctx, reflect2.TypeOfPtr((*uint8)(nil)).Elem()) |
||||
} |
||||
return &uint8Codec{} |
||||
case reflect.Uint16: |
||||
if typeName != "uint16" { |
||||
return decoderOfType(ctx, reflect2.TypeOfPtr((*uint16)(nil)).Elem()) |
||||
} |
||||
return &uint16Codec{} |
||||
case reflect.Uint32: |
||||
if typeName != "uint32" { |
||||
return decoderOfType(ctx, reflect2.TypeOfPtr((*uint32)(nil)).Elem()) |
||||
} |
||||
return &uint32Codec{} |
||||
case reflect.Uintptr: |
||||
if typeName != "uintptr" { |
||||
return decoderOfType(ctx, reflect2.TypeOfPtr((*uintptr)(nil)).Elem()) |
||||
} |
||||
if ptrSize == 32 { |
||||
return &uint32Codec{} |
||||
} |
||||
return &uint64Codec{} |
||||
case reflect.Uint64: |
||||
if typeName != "uint64" { |
||||
return decoderOfType(ctx, reflect2.TypeOfPtr((*uint64)(nil)).Elem()) |
||||
} |
||||
return &uint64Codec{} |
||||
case reflect.Float32: |
||||
if typeName != "float32" { |
||||
return decoderOfType(ctx, reflect2.TypeOfPtr((*float32)(nil)).Elem()) |
||||
} |
||||
return &float32Codec{} |
||||
case reflect.Float64: |
||||
if typeName != "float64" { |
||||
return decoderOfType(ctx, reflect2.TypeOfPtr((*float64)(nil)).Elem()) |
||||
} |
||||
return &float64Codec{} |
||||
case reflect.Bool: |
||||
if typeName != "bool" { |
||||
return decoderOfType(ctx, reflect2.TypeOfPtr((*bool)(nil)).Elem()) |
||||
} |
||||
return &boolCodec{} |
||||
} |
||||
return nil |
||||
} |
||||
|
||||
type stringCodec struct { |
||||
} |
||||
|
||||
func (codec *stringCodec) Decode(ptr unsafe.Pointer, iter *Iterator) { |
||||
*((*string)(ptr)) = iter.ReadString() |
||||
} |
||||
|
||||
func (codec *stringCodec) Encode(ptr unsafe.Pointer, stream *Stream) { |
||||
str := *((*string)(ptr)) |
||||
stream.WriteString(str) |
||||
} |
||||
|
||||
func (codec *stringCodec) IsEmpty(ptr unsafe.Pointer) bool { |
||||
return *((*string)(ptr)) == "" |
||||
} |
||||
|
||||
type int8Codec struct { |
||||
} |
||||
|
||||
func (codec *int8Codec) Decode(ptr unsafe.Pointer, iter *Iterator) { |
||||
if !iter.ReadNil() { |
||||
*((*int8)(ptr)) = iter.ReadInt8() |
||||
} |
||||
} |
||||
|
||||
func (codec *int8Codec) Encode(ptr unsafe.Pointer, stream *Stream) { |
||||
stream.WriteInt8(*((*int8)(ptr))) |
||||
} |
||||
|
||||
func (codec *int8Codec) IsEmpty(ptr unsafe.Pointer) bool { |
||||
return *((*int8)(ptr)) == 0 |
||||
} |
||||
|
||||
type int16Codec struct { |
||||
} |
||||
|
||||
func (codec *int16Codec) Decode(ptr unsafe.Pointer, iter *Iterator) { |
||||
if !iter.ReadNil() { |
||||
*((*int16)(ptr)) = iter.ReadInt16() |
||||
} |
||||
} |
||||
|
||||
func (codec *int16Codec) Encode(ptr unsafe.Pointer, stream *Stream) { |
||||
stream.WriteInt16(*((*int16)(ptr))) |
||||
} |
||||
|
||||
func (codec *int16Codec) IsEmpty(ptr unsafe.Pointer) bool { |
||||
return *((*int16)(ptr)) == 0 |
||||
} |
||||
|
||||
type int32Codec struct { |
||||
} |
||||
|
||||
func (codec *int32Codec) Decode(ptr unsafe.Pointer, iter *Iterator) { |
||||
if !iter.ReadNil() { |
||||
*((*int32)(ptr)) = iter.ReadInt32() |
||||
} |
||||
} |
||||
|
||||
func (codec *int32Codec) Encode(ptr unsafe.Pointer, stream *Stream) { |
||||
stream.WriteInt32(*((*int32)(ptr))) |
||||
} |
||||
|
||||
func (codec *int32Codec) IsEmpty(ptr unsafe.Pointer) bool { |
||||
return *((*int32)(ptr)) == 0 |
||||
} |
||||
|
||||
type int64Codec struct { |
||||
} |
||||
|
||||
func (codec *int64Codec) Decode(ptr unsafe.Pointer, iter *Iterator) { |
||||
if !iter.ReadNil() { |
||||
*((*int64)(ptr)) = iter.ReadInt64() |
||||
} |
||||
} |
||||
|
||||
func (codec *int64Codec) Encode(ptr unsafe.Pointer, stream *Stream) { |
||||
stream.WriteInt64(*((*int64)(ptr))) |
||||
} |
||||
|
||||
func (codec *int64Codec) IsEmpty(ptr unsafe.Pointer) bool { |
||||
return *((*int64)(ptr)) == 0 |
||||
} |
||||
|
||||
type uint8Codec struct { |
||||
} |
||||
|
||||
func (codec *uint8Codec) Decode(ptr unsafe.Pointer, iter *Iterator) { |
||||
if !iter.ReadNil() { |
||||
*((*uint8)(ptr)) = iter.ReadUint8() |
||||
} |
||||
} |
||||
|
||||
func (codec *uint8Codec) Encode(ptr unsafe.Pointer, stream *Stream) { |
||||
stream.WriteUint8(*((*uint8)(ptr))) |
||||
} |
||||
|
||||
func (codec *uint8Codec) IsEmpty(ptr unsafe.Pointer) bool { |
||||
return *((*uint8)(ptr)) == 0 |
||||
} |
||||
|
||||
type uint16Codec struct { |
||||
} |
||||
|
||||
func (codec *uint16Codec) Decode(ptr unsafe.Pointer, iter *Iterator) { |
||||
if !iter.ReadNil() { |
||||
*((*uint16)(ptr)) = iter.ReadUint16() |
||||
} |
||||
} |
||||
|
||||
func (codec *uint16Codec) Encode(ptr unsafe.Pointer, stream *Stream) { |
||||
stream.WriteUint16(*((*uint16)(ptr))) |
||||
} |
||||
|
||||
func (codec *uint16Codec) IsEmpty(ptr unsafe.Pointer) bool { |
||||
return *((*uint16)(ptr)) == 0 |
||||
} |
||||
|
||||
type uint32Codec struct { |
||||
} |
||||
|
||||
func (codec *uint32Codec) Decode(ptr unsafe.Pointer, iter *Iterator) { |
||||
if !iter.ReadNil() { |
||||
*((*uint32)(ptr)) = iter.ReadUint32() |
||||
} |
||||
} |
||||
|
||||
func (codec *uint32Codec) Encode(ptr unsafe.Pointer, stream *Stream) { |
||||
stream.WriteUint32(*((*uint32)(ptr))) |
||||
} |
||||
|
||||
func (codec *uint32Codec) IsEmpty(ptr unsafe.Pointer) bool { |
||||
return *((*uint32)(ptr)) == 0 |
||||
} |
||||
|
||||
type uint64Codec struct { |
||||
} |
||||
|
||||
func (codec *uint64Codec) Decode(ptr unsafe.Pointer, iter *Iterator) { |
||||
if !iter.ReadNil() { |
||||
*((*uint64)(ptr)) = iter.ReadUint64() |
||||
} |
||||
} |
||||
|
||||
func (codec *uint64Codec) Encode(ptr unsafe.Pointer, stream *Stream) { |
||||
stream.WriteUint64(*((*uint64)(ptr))) |
||||
} |
||||
|
||||
func (codec *uint64Codec) IsEmpty(ptr unsafe.Pointer) bool { |
||||
return *((*uint64)(ptr)) == 0 |
||||
} |
||||
|
||||
type float32Codec struct { |
||||
} |
||||
|
||||
func (codec *float32Codec) Decode(ptr unsafe.Pointer, iter *Iterator) { |
||||
if !iter.ReadNil() { |
||||
*((*float32)(ptr)) = iter.ReadFloat32() |
||||
} |
||||
} |
||||
|
||||
func (codec *float32Codec) Encode(ptr unsafe.Pointer, stream *Stream) { |
||||
stream.WriteFloat32(*((*float32)(ptr))) |
||||
} |
||||
|
||||
func (codec *float32Codec) IsEmpty(ptr unsafe.Pointer) bool { |
||||
return *((*float32)(ptr)) == 0 |
||||
} |
||||
|
||||
type float64Codec struct { |
||||
} |
||||
|
||||
func (codec *float64Codec) Decode(ptr unsafe.Pointer, iter *Iterator) { |
||||
if !iter.ReadNil() { |
||||
*((*float64)(ptr)) = iter.ReadFloat64() |
||||
} |
||||
} |
||||
|
||||
func (codec *float64Codec) Encode(ptr unsafe.Pointer, stream *Stream) { |
||||
stream.WriteFloat64(*((*float64)(ptr))) |
||||
} |
||||
|
||||
func (codec *float64Codec) IsEmpty(ptr unsafe.Pointer) bool { |
||||
return *((*float64)(ptr)) == 0 |
||||
} |
||||
|
||||
type boolCodec struct { |
||||
} |
||||
|
||||
func (codec *boolCodec) Decode(ptr unsafe.Pointer, iter *Iterator) { |
||||
if !iter.ReadNil() { |
||||
*((*bool)(ptr)) = iter.ReadBool() |
||||
} |
||||
} |
||||
|
||||
func (codec *boolCodec) Encode(ptr unsafe.Pointer, stream *Stream) { |
||||
stream.WriteBool(*((*bool)(ptr))) |
||||
} |
||||
|
||||
func (codec *boolCodec) IsEmpty(ptr unsafe.Pointer) bool { |
||||
return !(*((*bool)(ptr))) |
||||
} |
||||
|
||||
type base64Codec struct { |
||||
sliceType *reflect2.UnsafeSliceType |
||||
sliceDecoder ValDecoder |
||||
} |
||||
|
||||
func (codec *base64Codec) Decode(ptr unsafe.Pointer, iter *Iterator) { |
||||
if iter.ReadNil() { |
||||
codec.sliceType.UnsafeSetNil(ptr) |
||||
return |
||||
} |
||||
switch iter.WhatIsNext() { |
||||
case StringValue: |
||||
src := iter.ReadString() |
||||
dst, err := base64.StdEncoding.DecodeString(src) |
||||
if err != nil { |
||||
iter.ReportError("decode base64", err.Error()) |
||||
} else { |
||||
codec.sliceType.UnsafeSet(ptr, unsafe.Pointer(&dst)) |
||||
} |
||||
case ArrayValue: |
||||
codec.sliceDecoder.Decode(ptr, iter) |
||||
default: |
||||
iter.ReportError("base64Codec", "invalid input") |
||||
} |
||||
} |
||||
|
||||
func (codec *base64Codec) Encode(ptr unsafe.Pointer, stream *Stream) { |
||||
if codec.sliceType.UnsafeIsNil(ptr) { |
||||
stream.WriteNil() |
||||
return |
||||
} |
||||
src := *((*[]byte)(ptr)) |
||||
encoding := base64.StdEncoding |
||||
stream.writeByte('"') |
||||
if len(src) != 0 { |
||||
size := encoding.EncodedLen(len(src)) |
||||
buf := make([]byte, size) |
||||
encoding.Encode(buf, src) |
||||
stream.buf = append(stream.buf, buf...) |
||||
} |
||||
stream.writeByte('"') |
||||
} |
||||
|
||||
func (codec *base64Codec) IsEmpty(ptr unsafe.Pointer) bool { |
||||
return len(*((*[]byte)(ptr))) == 0 |
||||
} |
||||
@ -0,0 +1,129 @@ |
||||
package jsoniter |
||||
|
||||
import ( |
||||
"github.com/modern-go/reflect2" |
||||
"unsafe" |
||||
) |
||||
|
||||
func decoderOfOptional(ctx *ctx, typ reflect2.Type) ValDecoder { |
||||
ptrType := typ.(*reflect2.UnsafePtrType) |
||||
elemType := ptrType.Elem() |
||||
decoder := decoderOfType(ctx, elemType) |
||||
return &OptionalDecoder{elemType, decoder} |
||||
} |
||||
|
||||
func encoderOfOptional(ctx *ctx, typ reflect2.Type) ValEncoder { |
||||
ptrType := typ.(*reflect2.UnsafePtrType) |
||||
elemType := ptrType.Elem() |
||||
elemEncoder := encoderOfType(ctx, elemType) |
||||
encoder := &OptionalEncoder{elemEncoder} |
||||
return encoder |
||||
} |
||||
|
||||
type OptionalDecoder struct { |
||||
ValueType reflect2.Type |
||||
ValueDecoder ValDecoder |
||||
} |
||||
|
||||
func (decoder *OptionalDecoder) Decode(ptr unsafe.Pointer, iter *Iterator) { |
||||
if iter.ReadNil() { |
||||
*((*unsafe.Pointer)(ptr)) = nil |
||||
} else { |
||||
if *((*unsafe.Pointer)(ptr)) == nil { |
||||
//pointer to null, we have to allocate memory to hold the value
|
||||
newPtr := decoder.ValueType.UnsafeNew() |
||||
decoder.ValueDecoder.Decode(newPtr, iter) |
||||
*((*unsafe.Pointer)(ptr)) = newPtr |
||||
} else { |
||||
//reuse existing instance
|
||||
decoder.ValueDecoder.Decode(*((*unsafe.Pointer)(ptr)), iter) |
||||
} |
||||
} |
||||
} |
||||
|
||||
type dereferenceDecoder struct { |
||||
// only to deference a pointer
|
||||
valueType reflect2.Type |
||||
valueDecoder ValDecoder |
||||
} |
||||
|
||||
func (decoder *dereferenceDecoder) Decode(ptr unsafe.Pointer, iter *Iterator) { |
||||
if *((*unsafe.Pointer)(ptr)) == nil { |
||||
//pointer to null, we have to allocate memory to hold the value
|
||||
newPtr := decoder.valueType.UnsafeNew() |
||||
decoder.valueDecoder.Decode(newPtr, iter) |
||||
*((*unsafe.Pointer)(ptr)) = newPtr |
||||
} else { |
||||
//reuse existing instance
|
||||
decoder.valueDecoder.Decode(*((*unsafe.Pointer)(ptr)), iter) |
||||
} |
||||
} |
||||
|
||||
type OptionalEncoder struct { |
||||
ValueEncoder ValEncoder |
||||
} |
||||
|
||||
func (encoder *OptionalEncoder) Encode(ptr unsafe.Pointer, stream *Stream) { |
||||
if *((*unsafe.Pointer)(ptr)) == nil { |
||||
stream.WriteNil() |
||||
} else { |
||||
encoder.ValueEncoder.Encode(*((*unsafe.Pointer)(ptr)), stream) |
||||
} |
||||
} |
||||
|
||||
func (encoder *OptionalEncoder) IsEmpty(ptr unsafe.Pointer) bool { |
||||
return *((*unsafe.Pointer)(ptr)) == nil |
||||
} |
||||
|
||||
type dereferenceEncoder struct { |
||||
ValueEncoder ValEncoder |
||||
} |
||||
|
||||
func (encoder *dereferenceEncoder) Encode(ptr unsafe.Pointer, stream *Stream) { |
||||
if *((*unsafe.Pointer)(ptr)) == nil { |
||||
stream.WriteNil() |
||||
} else { |
||||
encoder.ValueEncoder.Encode(*((*unsafe.Pointer)(ptr)), stream) |
||||
} |
||||
} |
||||
|
||||
func (encoder *dereferenceEncoder) IsEmpty(ptr unsafe.Pointer) bool { |
||||
dePtr := *((*unsafe.Pointer)(ptr)) |
||||
if dePtr == nil { |
||||
return true |
||||
} |
||||
return encoder.ValueEncoder.IsEmpty(dePtr) |
||||
} |
||||
|
||||
func (encoder *dereferenceEncoder) IsEmbeddedPtrNil(ptr unsafe.Pointer) bool { |
||||
deReferenced := *((*unsafe.Pointer)(ptr)) |
||||
if deReferenced == nil { |
||||
return true |
||||
} |
||||
isEmbeddedPtrNil, converted := encoder.ValueEncoder.(IsEmbeddedPtrNil) |
||||
if !converted { |
||||
return false |
||||
} |
||||
fieldPtr := unsafe.Pointer(deReferenced) |
||||
return isEmbeddedPtrNil.IsEmbeddedPtrNil(fieldPtr) |
||||
} |
||||
|
||||
type referenceEncoder struct { |
||||
encoder ValEncoder |
||||
} |
||||
|
||||
func (encoder *referenceEncoder) Encode(ptr unsafe.Pointer, stream *Stream) { |
||||
encoder.encoder.Encode(unsafe.Pointer(&ptr), stream) |
||||
} |
||||
|
||||
func (encoder *referenceEncoder) IsEmpty(ptr unsafe.Pointer) bool { |
||||
return encoder.encoder.IsEmpty(unsafe.Pointer(&ptr)) |
||||
} |
||||
|
||||
type referenceDecoder struct { |
||||
decoder ValDecoder |
||||
} |
||||
|
||||
func (decoder *referenceDecoder) Decode(ptr unsafe.Pointer, iter *Iterator) { |
||||
decoder.decoder.Decode(unsafe.Pointer(&ptr), iter) |
||||
} |
||||
@ -0,0 +1,99 @@ |
||||
package jsoniter |
||||
|
||||
import ( |
||||
"fmt" |
||||
"github.com/modern-go/reflect2" |
||||
"io" |
||||
"unsafe" |
||||
) |
||||
|
||||
func decoderOfSlice(ctx *ctx, typ reflect2.Type) ValDecoder { |
||||
sliceType := typ.(*reflect2.UnsafeSliceType) |
||||
decoder := decoderOfType(ctx.append("[sliceElem]"), sliceType.Elem()) |
||||
return &sliceDecoder{sliceType, decoder} |
||||
} |
||||
|
||||
func encoderOfSlice(ctx *ctx, typ reflect2.Type) ValEncoder { |
||||
sliceType := typ.(*reflect2.UnsafeSliceType) |
||||
encoder := encoderOfType(ctx.append("[sliceElem]"), sliceType.Elem()) |
||||
return &sliceEncoder{sliceType, encoder} |
||||
} |
||||
|
||||
type sliceEncoder struct { |
||||
sliceType *reflect2.UnsafeSliceType |
||||
elemEncoder ValEncoder |
||||
} |
||||
|
||||
func (encoder *sliceEncoder) Encode(ptr unsafe.Pointer, stream *Stream) { |
||||
if encoder.sliceType.UnsafeIsNil(ptr) { |
||||
stream.WriteNil() |
||||
return |
||||
} |
||||
length := encoder.sliceType.UnsafeLengthOf(ptr) |
||||
if length == 0 { |
||||
stream.WriteEmptyArray() |
||||
return |
||||
} |
||||
stream.WriteArrayStart() |
||||
encoder.elemEncoder.Encode(encoder.sliceType.UnsafeGetIndex(ptr, 0), stream) |
||||
for i := 1; i < length; i++ { |
||||
stream.WriteMore() |
||||
elemPtr := encoder.sliceType.UnsafeGetIndex(ptr, i) |
||||
encoder.elemEncoder.Encode(elemPtr, stream) |
||||
} |
||||
stream.WriteArrayEnd() |
||||
if stream.Error != nil && stream.Error != io.EOF { |
||||
stream.Error = fmt.Errorf("%v: %s", encoder.sliceType, stream.Error.Error()) |
||||
} |
||||
} |
||||
|
||||
func (encoder *sliceEncoder) IsEmpty(ptr unsafe.Pointer) bool { |
||||
return encoder.sliceType.UnsafeLengthOf(ptr) == 0 |
||||
} |
||||
|
||||
type sliceDecoder struct { |
||||
sliceType *reflect2.UnsafeSliceType |
||||
elemDecoder ValDecoder |
||||
} |
||||
|
||||
func (decoder *sliceDecoder) Decode(ptr unsafe.Pointer, iter *Iterator) { |
||||
decoder.doDecode(ptr, iter) |
||||
if iter.Error != nil && iter.Error != io.EOF { |
||||
iter.Error = fmt.Errorf("%v: %s", decoder.sliceType, iter.Error.Error()) |
||||
} |
||||
} |
||||
|
||||
func (decoder *sliceDecoder) doDecode(ptr unsafe.Pointer, iter *Iterator) { |
||||
c := iter.nextToken() |
||||
sliceType := decoder.sliceType |
||||
if c == 'n' { |
||||
iter.skipThreeBytes('u', 'l', 'l') |
||||
sliceType.UnsafeSetNil(ptr) |
||||
return |
||||
} |
||||
if c != '[' { |
||||
iter.ReportError("decode slice", "expect [ or n, but found "+string([]byte{c})) |
||||
return |
||||
} |
||||
c = iter.nextToken() |
||||
if c == ']' { |
||||
sliceType.UnsafeSet(ptr, sliceType.UnsafeMakeSlice(0, 0)) |
||||
return |
||||
} |
||||
iter.unreadByte() |
||||
sliceType.UnsafeGrow(ptr, 1) |
||||
elemPtr := sliceType.UnsafeGetIndex(ptr, 0) |
||||
decoder.elemDecoder.Decode(elemPtr, iter) |
||||
length := 1 |
||||
for c = iter.nextToken(); c == ','; c = iter.nextToken() { |
||||
idx := length |
||||
length += 1 |
||||
sliceType.UnsafeGrow(ptr, length) |
||||
elemPtr = sliceType.UnsafeGetIndex(ptr, idx) |
||||
decoder.elemDecoder.Decode(elemPtr, iter) |
||||
} |
||||
if c != ']' { |
||||
iter.ReportError("decode slice", "expect ], but found "+string([]byte{c})) |
||||
return |
||||
} |
||||
} |
||||
File diff suppressed because it is too large
Load Diff
@ -0,0 +1,211 @@ |
||||
package jsoniter |
||||
|
||||
import ( |
||||
"fmt" |
||||
"github.com/modern-go/reflect2" |
||||
"io" |
||||
"reflect" |
||||
"unsafe" |
||||
) |
||||
|
||||
func encoderOfStruct(ctx *ctx, typ reflect2.Type) ValEncoder { |
||||
type bindingTo struct { |
||||
binding *Binding |
||||
toName string |
||||
ignored bool |
||||
} |
||||
orderedBindings := []*bindingTo{} |
||||
structDescriptor := describeStruct(ctx, typ) |
||||
for _, binding := range structDescriptor.Fields { |
||||
for _, toName := range binding.ToNames { |
||||
new := &bindingTo{ |
||||
binding: binding, |
||||
toName: toName, |
||||
} |
||||
for _, old := range orderedBindings { |
||||
if old.toName != toName { |
||||
continue |
||||
} |
||||
old.ignored, new.ignored = resolveConflictBinding(ctx.frozenConfig, old.binding, new.binding) |
||||
} |
||||
orderedBindings = append(orderedBindings, new) |
||||
} |
||||
} |
||||
if len(orderedBindings) == 0 { |
||||
return &emptyStructEncoder{} |
||||
} |
||||
finalOrderedFields := []structFieldTo{} |
||||
for _, bindingTo := range orderedBindings { |
||||
if !bindingTo.ignored { |
||||
finalOrderedFields = append(finalOrderedFields, structFieldTo{ |
||||
encoder: bindingTo.binding.Encoder.(*structFieldEncoder), |
||||
toName: bindingTo.toName, |
||||
}) |
||||
} |
||||
} |
||||
return &structEncoder{typ, finalOrderedFields} |
||||
} |
||||
|
||||
func createCheckIsEmpty(ctx *ctx, typ reflect2.Type) checkIsEmpty { |
||||
encoder := createEncoderOfNative(ctx, typ) |
||||
if encoder != nil { |
||||
return encoder |
||||
} |
||||
kind := typ.Kind() |
||||
switch kind { |
||||
case reflect.Interface: |
||||
return &dynamicEncoder{typ} |
||||
case reflect.Struct: |
||||
return &structEncoder{typ: typ} |
||||
case reflect.Array: |
||||
return &arrayEncoder{} |
||||
case reflect.Slice: |
||||
return &sliceEncoder{} |
||||
case reflect.Map: |
||||
return encoderOfMap(ctx, typ) |
||||
case reflect.Ptr: |
||||
return &OptionalEncoder{} |
||||
default: |
||||
return &lazyErrorEncoder{err: fmt.Errorf("unsupported type: %v", typ)} |
||||
} |
||||
} |
||||
|
||||
func resolveConflictBinding(cfg *frozenConfig, old, new *Binding) (ignoreOld, ignoreNew bool) { |
||||
newTagged := new.Field.Tag().Get(cfg.getTagKey()) != "" |
||||
oldTagged := old.Field.Tag().Get(cfg.getTagKey()) != "" |
||||
if newTagged { |
||||
if oldTagged { |
||||
if len(old.levels) > len(new.levels) { |
||||
return true, false |
||||
} else if len(new.levels) > len(old.levels) { |
||||
return false, true |
||||
} else { |
||||
return true, true |
||||
} |
||||
} else { |
||||
return true, false |
||||
} |
||||
} else { |
||||
if oldTagged { |
||||
return true, false |
||||
} |
||||
if len(old.levels) > len(new.levels) { |
||||
return true, false |
||||
} else if len(new.levels) > len(old.levels) { |
||||
return false, true |
||||
} else { |
||||
return true, true |
||||
} |
||||
} |
||||
} |
||||
|
||||
type structFieldEncoder struct { |
||||
field reflect2.StructField |
||||
fieldEncoder ValEncoder |
||||
omitempty bool |
||||
} |
||||
|
||||
func (encoder *structFieldEncoder) Encode(ptr unsafe.Pointer, stream *Stream) { |
||||
fieldPtr := encoder.field.UnsafeGet(ptr) |
||||
encoder.fieldEncoder.Encode(fieldPtr, stream) |
||||
if stream.Error != nil && stream.Error != io.EOF { |
||||
stream.Error = fmt.Errorf("%s: %s", encoder.field.Name(), stream.Error.Error()) |
||||
} |
||||
} |
||||
|
||||
func (encoder *structFieldEncoder) IsEmpty(ptr unsafe.Pointer) bool { |
||||
fieldPtr := encoder.field.UnsafeGet(ptr) |
||||
return encoder.fieldEncoder.IsEmpty(fieldPtr) |
||||
} |
||||
|
||||
func (encoder *structFieldEncoder) IsEmbeddedPtrNil(ptr unsafe.Pointer) bool { |
||||
isEmbeddedPtrNil, converted := encoder.fieldEncoder.(IsEmbeddedPtrNil) |
||||
if !converted { |
||||
return false |
||||
} |
||||
fieldPtr := encoder.field.UnsafeGet(ptr) |
||||
return isEmbeddedPtrNil.IsEmbeddedPtrNil(fieldPtr) |
||||
} |
||||
|
||||
type IsEmbeddedPtrNil interface { |
||||
IsEmbeddedPtrNil(ptr unsafe.Pointer) bool |
||||
} |
||||
|
||||
type structEncoder struct { |
||||
typ reflect2.Type |
||||
fields []structFieldTo |
||||
} |
||||
|
||||
type structFieldTo struct { |
||||
encoder *structFieldEncoder |
||||
toName string |
||||
} |
||||
|
||||
func (encoder *structEncoder) Encode(ptr unsafe.Pointer, stream *Stream) { |
||||
stream.WriteObjectStart() |
||||
isNotFirst := false |
||||
for _, field := range encoder.fields { |
||||
if field.encoder.omitempty && field.encoder.IsEmpty(ptr) { |
||||
continue |
||||
} |
||||
if field.encoder.IsEmbeddedPtrNil(ptr) { |
||||
continue |
||||
} |
||||
if isNotFirst { |
||||
stream.WriteMore() |
||||
} |
||||
stream.WriteObjectField(field.toName) |
||||
field.encoder.Encode(ptr, stream) |
||||
isNotFirst = true |
||||
} |
||||
stream.WriteObjectEnd() |
||||
if stream.Error != nil && stream.Error != io.EOF { |
||||
stream.Error = fmt.Errorf("%v.%s", encoder.typ, stream.Error.Error()) |
||||
} |
||||
} |
||||
|
||||
func (encoder *structEncoder) IsEmpty(ptr unsafe.Pointer) bool { |
||||
return false |
||||
} |
||||
|
||||
type emptyStructEncoder struct { |
||||
} |
||||
|
||||
func (encoder *emptyStructEncoder) Encode(ptr unsafe.Pointer, stream *Stream) { |
||||
stream.WriteEmptyObject() |
||||
} |
||||
|
||||
func (encoder *emptyStructEncoder) IsEmpty(ptr unsafe.Pointer) bool { |
||||
return false |
||||
} |
||||
|
||||
type stringModeNumberEncoder struct { |
||||
elemEncoder ValEncoder |
||||
} |
||||
|
||||
func (encoder *stringModeNumberEncoder) Encode(ptr unsafe.Pointer, stream *Stream) { |
||||
stream.writeByte('"') |
||||
encoder.elemEncoder.Encode(ptr, stream) |
||||
stream.writeByte('"') |
||||
} |
||||
|
||||
func (encoder *stringModeNumberEncoder) IsEmpty(ptr unsafe.Pointer) bool { |
||||
return encoder.elemEncoder.IsEmpty(ptr) |
||||
} |
||||
|
||||
type stringModeStringEncoder struct { |
||||
elemEncoder ValEncoder |
||||
cfg *frozenConfig |
||||
} |
||||
|
||||
func (encoder *stringModeStringEncoder) Encode(ptr unsafe.Pointer, stream *Stream) { |
||||
tempStream := encoder.cfg.BorrowStream(nil) |
||||
tempStream.Attachment = stream.Attachment |
||||
defer encoder.cfg.ReturnStream(tempStream) |
||||
encoder.elemEncoder.Encode(ptr, tempStream) |
||||
stream.WriteString(string(tempStream.Buffer())) |
||||
} |
||||
|
||||
func (encoder *stringModeStringEncoder) IsEmpty(ptr unsafe.Pointer) bool { |
||||
return encoder.elemEncoder.IsEmpty(ptr) |
||||
} |
||||
@ -0,0 +1,210 @@ |
||||
package jsoniter |
||||
|
||||
import ( |
||||
"io" |
||||
) |
||||
|
||||
// stream is a io.Writer like object, with JSON specific write functions.
|
||||
// Error is not returned as return value, but stored as Error member on this stream instance.
|
||||
type Stream struct { |
||||
cfg *frozenConfig |
||||
out io.Writer |
||||
buf []byte |
||||
Error error |
||||
indention int |
||||
Attachment interface{} // open for customized encoder
|
||||
} |
||||
|
||||
// NewStream create new stream instance.
|
||||
// cfg can be jsoniter.ConfigDefault.
|
||||
// out can be nil if write to internal buffer.
|
||||
// bufSize is the initial size for the internal buffer in bytes.
|
||||
func NewStream(cfg API, out io.Writer, bufSize int) *Stream { |
||||
return &Stream{ |
||||
cfg: cfg.(*frozenConfig), |
||||
out: out, |
||||
buf: make([]byte, 0, bufSize), |
||||
Error: nil, |
||||
indention: 0, |
||||
} |
||||
} |
||||
|
||||
// Pool returns a pool can provide more stream with same configuration
|
||||
func (stream *Stream) Pool() StreamPool { |
||||
return stream.cfg |
||||
} |
||||
|
||||
// Reset reuse this stream instance by assign a new writer
|
||||
func (stream *Stream) Reset(out io.Writer) { |
||||
stream.out = out |
||||
stream.buf = stream.buf[:0] |
||||
} |
||||
|
||||
// Available returns how many bytes are unused in the buffer.
|
||||
func (stream *Stream) Available() int { |
||||
return cap(stream.buf) - len(stream.buf) |
||||
} |
||||
|
||||
// Buffered returns the number of bytes that have been written into the current buffer.
|
||||
func (stream *Stream) Buffered() int { |
||||
return len(stream.buf) |
||||
} |
||||
|
||||
// Buffer if writer is nil, use this method to take the result
|
||||
func (stream *Stream) Buffer() []byte { |
||||
return stream.buf |
||||
} |
||||
|
||||
// SetBuffer allows to append to the internal buffer directly
|
||||
func (stream *Stream) SetBuffer(buf []byte) { |
||||
stream.buf = buf |
||||
} |
||||
|
||||
// Write writes the contents of p into the buffer.
|
||||
// It returns the number of bytes written.
|
||||
// If nn < len(p), it also returns an error explaining
|
||||
// why the write is short.
|
||||
func (stream *Stream) Write(p []byte) (nn int, err error) { |
||||
stream.buf = append(stream.buf, p...) |
||||
if stream.out != nil { |
||||
nn, err = stream.out.Write(stream.buf) |
||||
stream.buf = stream.buf[nn:] |
||||
return |
||||
} |
||||
return len(p), nil |
||||
} |
||||
|
||||
// WriteByte writes a single byte.
|
||||
func (stream *Stream) writeByte(c byte) { |
||||
stream.buf = append(stream.buf, c) |
||||
} |
||||
|
||||
func (stream *Stream) writeTwoBytes(c1 byte, c2 byte) { |
||||
stream.buf = append(stream.buf, c1, c2) |
||||
} |
||||
|
||||
func (stream *Stream) writeThreeBytes(c1 byte, c2 byte, c3 byte) { |
||||
stream.buf = append(stream.buf, c1, c2, c3) |
||||
} |
||||
|
||||
func (stream *Stream) writeFourBytes(c1 byte, c2 byte, c3 byte, c4 byte) { |
||||
stream.buf = append(stream.buf, c1, c2, c3, c4) |
||||
} |
||||
|
||||
func (stream *Stream) writeFiveBytes(c1 byte, c2 byte, c3 byte, c4 byte, c5 byte) { |
||||
stream.buf = append(stream.buf, c1, c2, c3, c4, c5) |
||||
} |
||||
|
||||
// Flush writes any buffered data to the underlying io.Writer.
|
||||
func (stream *Stream) Flush() error { |
||||
if stream.out == nil { |
||||
return nil |
||||
} |
||||
if stream.Error != nil { |
||||
return stream.Error |
||||
} |
||||
_, err := stream.out.Write(stream.buf) |
||||
if err != nil { |
||||
if stream.Error == nil { |
||||
stream.Error = err |
||||
} |
||||
return err |
||||
} |
||||
stream.buf = stream.buf[:0] |
||||
return nil |
||||
} |
||||
|
||||
// WriteRaw write string out without quotes, just like []byte
|
||||
func (stream *Stream) WriteRaw(s string) { |
||||
stream.buf = append(stream.buf, s...) |
||||
} |
||||
|
||||
// WriteNil write null to stream
|
||||
func (stream *Stream) WriteNil() { |
||||
stream.writeFourBytes('n', 'u', 'l', 'l') |
||||
} |
||||
|
||||
// WriteTrue write true to stream
|
||||
func (stream *Stream) WriteTrue() { |
||||
stream.writeFourBytes('t', 'r', 'u', 'e') |
||||
} |
||||
|
||||
// WriteFalse write false to stream
|
||||
func (stream *Stream) WriteFalse() { |
||||
stream.writeFiveBytes('f', 'a', 'l', 's', 'e') |
||||
} |
||||
|
||||
// WriteBool write true or false into stream
|
||||
func (stream *Stream) WriteBool(val bool) { |
||||
if val { |
||||
stream.WriteTrue() |
||||
} else { |
||||
stream.WriteFalse() |
||||
} |
||||
} |
||||
|
||||
// WriteObjectStart write { with possible indention
|
||||
func (stream *Stream) WriteObjectStart() { |
||||
stream.indention += stream.cfg.indentionStep |
||||
stream.writeByte('{') |
||||
stream.writeIndention(0) |
||||
} |
||||
|
||||
// WriteObjectField write "field": with possible indention
|
||||
func (stream *Stream) WriteObjectField(field string) { |
||||
stream.WriteString(field) |
||||
if stream.indention > 0 { |
||||
stream.writeTwoBytes(':', ' ') |
||||
} else { |
||||
stream.writeByte(':') |
||||
} |
||||
} |
||||
|
||||
// WriteObjectEnd write } with possible indention
|
||||
func (stream *Stream) WriteObjectEnd() { |
||||
stream.writeIndention(stream.cfg.indentionStep) |
||||
stream.indention -= stream.cfg.indentionStep |
||||
stream.writeByte('}') |
||||
} |
||||
|
||||
// WriteEmptyObject write {}
|
||||
func (stream *Stream) WriteEmptyObject() { |
||||
stream.writeByte('{') |
||||
stream.writeByte('}') |
||||
} |
||||
|
||||
// WriteMore write , with possible indention
|
||||
func (stream *Stream) WriteMore() { |
||||
stream.writeByte(',') |
||||
stream.writeIndention(0) |
||||
} |
||||
|
||||
// WriteArrayStart write [ with possible indention
|
||||
func (stream *Stream) WriteArrayStart() { |
||||
stream.indention += stream.cfg.indentionStep |
||||
stream.writeByte('[') |
||||
stream.writeIndention(0) |
||||
} |
||||
|
||||
// WriteEmptyArray write []
|
||||
func (stream *Stream) WriteEmptyArray() { |
||||
stream.writeTwoBytes('[', ']') |
||||
} |
||||
|
||||
// WriteArrayEnd write ] with possible indention
|
||||
func (stream *Stream) WriteArrayEnd() { |
||||
stream.writeIndention(stream.cfg.indentionStep) |
||||
stream.indention -= stream.cfg.indentionStep |
||||
stream.writeByte(']') |
||||
} |
||||
|
||||
func (stream *Stream) writeIndention(delta int) { |
||||
if stream.indention == 0 { |
||||
return |
||||
} |
||||
stream.writeByte('\n') |
||||
toWrite := stream.indention - delta |
||||
for i := 0; i < toWrite; i++ { |
||||
stream.buf = append(stream.buf, ' ') |
||||
} |
||||
} |
||||
@ -0,0 +1,111 @@ |
||||
package jsoniter |
||||
|
||||
import ( |
||||
"fmt" |
||||
"math" |
||||
"strconv" |
||||
) |
||||
|
||||
var pow10 []uint64 |
||||
|
||||
func init() { |
||||
pow10 = []uint64{1, 10, 100, 1000, 10000, 100000, 1000000} |
||||
} |
||||
|
||||
// WriteFloat32 write float32 to stream
|
||||
func (stream *Stream) WriteFloat32(val float32) { |
||||
if math.IsInf(float64(val), 0) || math.IsNaN(float64(val)) { |
||||
stream.Error = fmt.Errorf("unsupported value: %f", val) |
||||
return |
||||
} |
||||
abs := math.Abs(float64(val)) |
||||
fmt := byte('f') |
||||
// Note: Must use float32 comparisons for underlying float32 value to get precise cutoffs right.
|
||||
if abs != 0 { |
||||
if float32(abs) < 1e-6 || float32(abs) >= 1e21 { |
||||
fmt = 'e' |
||||
} |
||||
} |
||||
stream.buf = strconv.AppendFloat(stream.buf, float64(val), fmt, -1, 32) |
||||
} |
||||
|
||||
// WriteFloat32Lossy write float32 to stream with ONLY 6 digits precision although much much faster
|
||||
func (stream *Stream) WriteFloat32Lossy(val float32) { |
||||
if math.IsInf(float64(val), 0) || math.IsNaN(float64(val)) { |
||||
stream.Error = fmt.Errorf("unsupported value: %f", val) |
||||
return |
||||
} |
||||
if val < 0 { |
||||
stream.writeByte('-') |
||||
val = -val |
||||
} |
||||
if val > 0x4ffffff { |
||||
stream.WriteFloat32(val) |
||||
return |
||||
} |
||||
precision := 6 |
||||
exp := uint64(1000000) // 6
|
||||
lval := uint64(float64(val)*float64(exp) + 0.5) |
||||
stream.WriteUint64(lval / exp) |
||||
fval := lval % exp |
||||
if fval == 0 { |
||||
return |
||||
} |
||||
stream.writeByte('.') |
||||
for p := precision - 1; p > 0 && fval < pow10[p]; p-- { |
||||
stream.writeByte('0') |
||||
} |
||||
stream.WriteUint64(fval) |
||||
for stream.buf[len(stream.buf)-1] == '0' { |
||||
stream.buf = stream.buf[:len(stream.buf)-1] |
||||
} |
||||
} |
||||
|
||||
// WriteFloat64 write float64 to stream
|
||||
func (stream *Stream) WriteFloat64(val float64) { |
||||
if math.IsInf(val, 0) || math.IsNaN(val) { |
||||
stream.Error = fmt.Errorf("unsupported value: %f", val) |
||||
return |
||||
} |
||||
abs := math.Abs(val) |
||||
fmt := byte('f') |
||||
// Note: Must use float32 comparisons for underlying float32 value to get precise cutoffs right.
|
||||
if abs != 0 { |
||||
if abs < 1e-6 || abs >= 1e21 { |
||||
fmt = 'e' |
||||
} |
||||
} |
||||
stream.buf = strconv.AppendFloat(stream.buf, float64(val), fmt, -1, 64) |
||||
} |
||||
|
||||
// WriteFloat64Lossy write float64 to stream with ONLY 6 digits precision although much much faster
|
||||
func (stream *Stream) WriteFloat64Lossy(val float64) { |
||||
if math.IsInf(val, 0) || math.IsNaN(val) { |
||||
stream.Error = fmt.Errorf("unsupported value: %f", val) |
||||
return |
||||
} |
||||
if val < 0 { |
||||
stream.writeByte('-') |
||||
val = -val |
||||
} |
||||
if val > 0x4ffffff { |
||||
stream.WriteFloat64(val) |
||||
return |
||||
} |
||||
precision := 6 |
||||
exp := uint64(1000000) // 6
|
||||
lval := uint64(val*float64(exp) + 0.5) |
||||
stream.WriteUint64(lval / exp) |
||||
fval := lval % exp |
||||
if fval == 0 { |
||||
return |
||||
} |
||||
stream.writeByte('.') |
||||
for p := precision - 1; p > 0 && fval < pow10[p]; p-- { |
||||
stream.writeByte('0') |
||||
} |
||||
stream.WriteUint64(fval) |
||||
for stream.buf[len(stream.buf)-1] == '0' { |
||||
stream.buf = stream.buf[:len(stream.buf)-1] |
||||
} |
||||
} |
||||
@ -0,0 +1,190 @@ |
||||
package jsoniter |
||||
|
||||
var digits []uint32 |
||||
|
||||
func init() { |
||||
digits = make([]uint32, 1000) |
||||
for i := uint32(0); i < 1000; i++ { |
||||
digits[i] = (((i / 100) + '0') << 16) + ((((i / 10) % 10) + '0') << 8) + i%10 + '0' |
||||
if i < 10 { |
||||
digits[i] += 2 << 24 |
||||
} else if i < 100 { |
||||
digits[i] += 1 << 24 |
||||
} |
||||
} |
||||
} |
||||
|
||||
func writeFirstBuf(space []byte, v uint32) []byte { |
||||
start := v >> 24 |
||||
if start == 0 { |
||||
space = append(space, byte(v>>16), byte(v>>8)) |
||||
} else if start == 1 { |
||||
space = append(space, byte(v>>8)) |
||||
} |
||||
space = append(space, byte(v)) |
||||
return space |
||||
} |
||||
|
||||
func writeBuf(buf []byte, v uint32) []byte { |
||||
return append(buf, byte(v>>16), byte(v>>8), byte(v)) |
||||
} |
||||
|
||||
// WriteUint8 write uint8 to stream
|
||||
func (stream *Stream) WriteUint8(val uint8) { |
||||
stream.buf = writeFirstBuf(stream.buf, digits[val]) |
||||
} |
||||
|
||||
// WriteInt8 write int8 to stream
|
||||
func (stream *Stream) WriteInt8(nval int8) { |
||||
var val uint8 |
||||
if nval < 0 { |
||||
val = uint8(-nval) |
||||
stream.buf = append(stream.buf, '-') |
||||
} else { |
||||
val = uint8(nval) |
||||
} |
||||
stream.buf = writeFirstBuf(stream.buf, digits[val]) |
||||
} |
||||
|
||||
// WriteUint16 write uint16 to stream
|
||||
func (stream *Stream) WriteUint16(val uint16) { |
||||
q1 := val / 1000 |
||||
if q1 == 0 { |
||||
stream.buf = writeFirstBuf(stream.buf, digits[val]) |
||||
return |
||||
} |
||||
r1 := val - q1*1000 |
||||
stream.buf = writeFirstBuf(stream.buf, digits[q1]) |
||||
stream.buf = writeBuf(stream.buf, digits[r1]) |
||||
return |
||||
} |
||||
|
||||
// WriteInt16 write int16 to stream
|
||||
func (stream *Stream) WriteInt16(nval int16) { |
||||
var val uint16 |
||||
if nval < 0 { |
||||
val = uint16(-nval) |
||||
stream.buf = append(stream.buf, '-') |
||||
} else { |
||||
val = uint16(nval) |
||||
} |
||||
stream.WriteUint16(val) |
||||
} |
||||
|
||||
// WriteUint32 write uint32 to stream
|
||||
func (stream *Stream) WriteUint32(val uint32) { |
||||
q1 := val / 1000 |
||||
if q1 == 0 { |
||||
stream.buf = writeFirstBuf(stream.buf, digits[val]) |
||||
return |
||||
} |
||||
r1 := val - q1*1000 |
||||
q2 := q1 / 1000 |
||||
if q2 == 0 { |
||||
stream.buf = writeFirstBuf(stream.buf, digits[q1]) |
||||
stream.buf = writeBuf(stream.buf, digits[r1]) |
||||
return |
||||
} |
||||
r2 := q1 - q2*1000 |
||||
q3 := q2 / 1000 |
||||
if q3 == 0 { |
||||
stream.buf = writeFirstBuf(stream.buf, digits[q2]) |
||||
} else { |
||||
r3 := q2 - q3*1000 |
||||
stream.buf = append(stream.buf, byte(q3+'0')) |
||||
stream.buf = writeBuf(stream.buf, digits[r3]) |
||||
} |
||||
stream.buf = writeBuf(stream.buf, digits[r2]) |
||||
stream.buf = writeBuf(stream.buf, digits[r1]) |
||||
} |
||||
|
||||
// WriteInt32 write int32 to stream
|
||||
func (stream *Stream) WriteInt32(nval int32) { |
||||
var val uint32 |
||||
if nval < 0 { |
||||
val = uint32(-nval) |
||||
stream.buf = append(stream.buf, '-') |
||||
} else { |
||||
val = uint32(nval) |
||||
} |
||||
stream.WriteUint32(val) |
||||
} |
||||
|
||||
// WriteUint64 write uint64 to stream
|
||||
func (stream *Stream) WriteUint64(val uint64) { |
||||
q1 := val / 1000 |
||||
if q1 == 0 { |
||||
stream.buf = writeFirstBuf(stream.buf, digits[val]) |
||||
return |
||||
} |
||||
r1 := val - q1*1000 |
||||
q2 := q1 / 1000 |
||||
if q2 == 0 { |
||||
stream.buf = writeFirstBuf(stream.buf, digits[q1]) |
||||
stream.buf = writeBuf(stream.buf, digits[r1]) |
||||
return |
||||
} |
||||
r2 := q1 - q2*1000 |
||||
q3 := q2 / 1000 |
||||
if q3 == 0 { |
||||
stream.buf = writeFirstBuf(stream.buf, digits[q2]) |
||||
stream.buf = writeBuf(stream.buf, digits[r2]) |
||||
stream.buf = writeBuf(stream.buf, digits[r1]) |
||||
return |
||||
} |
||||
r3 := q2 - q3*1000 |
||||
q4 := q3 / 1000 |
||||
if q4 == 0 { |
||||
stream.buf = writeFirstBuf(stream.buf, digits[q3]) |
||||
stream.buf = writeBuf(stream.buf, digits[r3]) |
||||
stream.buf = writeBuf(stream.buf, digits[r2]) |
||||
stream.buf = writeBuf(stream.buf, digits[r1]) |
||||
return |
||||
} |
||||
r4 := q3 - q4*1000 |
||||
q5 := q4 / 1000 |
||||
if q5 == 0 { |
||||
stream.buf = writeFirstBuf(stream.buf, digits[q4]) |
||||
stream.buf = writeBuf(stream.buf, digits[r4]) |
||||
stream.buf = writeBuf(stream.buf, digits[r3]) |
||||
stream.buf = writeBuf(stream.buf, digits[r2]) |
||||
stream.buf = writeBuf(stream.buf, digits[r1]) |
||||
return |
||||
} |
||||
r5 := q4 - q5*1000 |
||||
q6 := q5 / 1000 |
||||
if q6 == 0 { |
||||
stream.buf = writeFirstBuf(stream.buf, digits[q5]) |
||||
} else { |
||||
stream.buf = writeFirstBuf(stream.buf, digits[q6]) |
||||
r6 := q5 - q6*1000 |
||||
stream.buf = writeBuf(stream.buf, digits[r6]) |
||||
} |
||||
stream.buf = writeBuf(stream.buf, digits[r5]) |
||||
stream.buf = writeBuf(stream.buf, digits[r4]) |
||||
stream.buf = writeBuf(stream.buf, digits[r3]) |
||||
stream.buf = writeBuf(stream.buf, digits[r2]) |
||||
stream.buf = writeBuf(stream.buf, digits[r1]) |
||||
} |
||||
|
||||
// WriteInt64 write int64 to stream
|
||||
func (stream *Stream) WriteInt64(nval int64) { |
||||
var val uint64 |
||||
if nval < 0 { |
||||
val = uint64(-nval) |
||||
stream.buf = append(stream.buf, '-') |
||||
} else { |
||||
val = uint64(nval) |
||||
} |
||||
stream.WriteUint64(val) |
||||
} |
||||
|
||||
// WriteInt write int to stream
|
||||
func (stream *Stream) WriteInt(val int) { |
||||
stream.WriteInt64(int64(val)) |
||||
} |
||||
|
||||
// WriteUint write uint to stream
|
||||
func (stream *Stream) WriteUint(val uint) { |
||||
stream.WriteUint64(uint64(val)) |
||||
} |
||||
@ -0,0 +1,372 @@ |
||||
package jsoniter |
||||
|
||||
import ( |
||||
"unicode/utf8" |
||||
) |
||||
|
||||
// htmlSafeSet holds the value true if the ASCII character with the given
|
||||
// array position can be safely represented inside a JSON string, embedded
|
||||
// inside of HTML <script> tags, without any additional escaping.
|
||||
//
|
||||
// All values are true except for the ASCII control characters (0-31), the
|
||||
// double quote ("), the backslash character ("\"), HTML opening and closing
|
||||
// tags ("<" and ">"), and the ampersand ("&").
|
||||
var htmlSafeSet = [utf8.RuneSelf]bool{ |
||||
' ': true, |
||||
'!': true, |
||||
'"': false, |
||||
'#': true, |
||||
'$': true, |
||||
'%': true, |
||||
'&': false, |
||||
'\'': true, |
||||
'(': true, |
||||
')': true, |
||||
'*': true, |
||||
'+': true, |
||||
',': true, |
||||
'-': true, |
||||
'.': true, |
||||
'/': true, |
||||
'0': true, |
||||
'1': true, |
||||
'2': true, |
||||
'3': true, |
||||
'4': true, |
||||
'5': true, |
||||
'6': true, |
||||
'7': true, |
||||
'8': true, |
||||
'9': true, |
||||
':': true, |
||||
';': true, |
||||
'<': false, |
||||
'=': true, |
||||
'>': false, |
||||
'?': true, |
||||
'@': true, |
||||
'A': true, |
||||
'B': true, |
||||
'C': true, |
||||
'D': true, |
||||
'E': true, |
||||
'F': true, |
||||
'G': true, |
||||
'H': true, |
||||
'I': true, |
||||
'J': true, |
||||
'K': true, |
||||
'L': true, |
||||
'M': true, |
||||
'N': true, |
||||
'O': true, |
||||
'P': true, |
||||
'Q': true, |
||||
'R': true, |
||||
'S': true, |
||||
'T': true, |
||||
'U': true, |
||||
'V': true, |
||||
'W': true, |
||||
'X': true, |
||||
'Y': true, |
||||
'Z': true, |
||||
'[': true, |
||||
'\\': false, |
||||
']': true, |
||||
'^': true, |
||||
'_': true, |
||||
'`': true, |
||||
'a': true, |
||||
'b': true, |
||||
'c': true, |
||||
'd': true, |
||||
'e': true, |
||||
'f': true, |
||||
'g': true, |
||||
'h': true, |
||||
'i': true, |
||||
'j': true, |
||||
'k': true, |
||||
'l': true, |
||||
'm': true, |
||||
'n': true, |
||||
'o': true, |
||||
'p': true, |
||||
'q': true, |
||||
'r': true, |
||||
's': true, |
||||
't': true, |
||||
'u': true, |
||||
'v': true, |
||||
'w': true, |
||||
'x': true, |
||||
'y': true, |
||||
'z': true, |
||||
'{': true, |
||||
'|': true, |
||||
'}': true, |
||||
'~': true, |
||||
'\u007f': true, |
||||
} |
||||
|
||||
// safeSet holds the value true if the ASCII character with the given array
|
||||
// position can be represented inside a JSON string without any further
|
||||
// escaping.
|
||||
//
|
||||
// All values are true except for the ASCII control characters (0-31), the
|
||||
// double quote ("), and the backslash character ("\").
|
||||
var safeSet = [utf8.RuneSelf]bool{ |
||||
' ': true, |
||||
'!': true, |
||||
'"': false, |
||||
'#': true, |
||||
'$': true, |
||||
'%': true, |
||||
'&': true, |
||||
'\'': true, |
||||
'(': true, |
||||
')': true, |
||||
'*': true, |
||||
'+': true, |
||||
',': true, |
||||
'-': true, |
||||
'.': true, |
||||
'/': true, |
||||
'0': true, |
||||
'1': true, |
||||
'2': true, |
||||
'3': true, |
||||
'4': true, |
||||
'5': true, |
||||
'6': true, |
||||
'7': true, |
||||
'8': true, |
||||
'9': true, |
||||
':': true, |
||||
';': true, |
||||
'<': true, |
||||
'=': true, |
||||
'>': true, |
||||
'?': true, |
||||
'@': true, |
||||
'A': true, |
||||
'B': true, |
||||
'C': true, |
||||
'D': true, |
||||
'E': true, |
||||
'F': true, |
||||
'G': true, |
||||
'H': true, |
||||
'I': true, |
||||
'J': true, |
||||
'K': true, |
||||
'L': true, |
||||
'M': true, |
||||
'N': true, |
||||
'O': true, |
||||
'P': true, |
||||
'Q': true, |
||||
'R': true, |
||||
'S': true, |
||||
'T': true, |
||||
'U': true, |
||||
'V': true, |
||||
'W': true, |
||||
'X': true, |
||||
'Y': true, |
||||
'Z': true, |
||||
'[': true, |
||||
'\\': false, |
||||
']': true, |
||||
'^': true, |
||||
'_': true, |
||||
'`': true, |
||||
'a': true, |
||||
'b': true, |
||||
'c': true, |
||||
'd': true, |
||||
'e': true, |
||||
'f': true, |
||||
'g': true, |
||||
'h': true, |
||||
'i': true, |
||||
'j': true, |
||||
'k': true, |
||||
'l': true, |
||||
'm': true, |
||||
'n': true, |
||||
'o': true, |
||||
'p': true, |
||||
'q': true, |
||||
'r': true, |
||||
's': true, |
||||
't': true, |
||||
'u': true, |
||||
'v': true, |
||||
'w': true, |
||||
'x': true, |
||||
'y': true, |
||||
'z': true, |
||||
'{': true, |
||||
'|': true, |
||||
'}': true, |
||||
'~': true, |
||||
'\u007f': true, |
||||
} |
||||
|
||||
var hex = "0123456789abcdef" |
||||
|
||||
// WriteStringWithHTMLEscaped write string to stream with html special characters escaped
|
||||
func (stream *Stream) WriteStringWithHTMLEscaped(s string) { |
||||
valLen := len(s) |
||||
stream.buf = append(stream.buf, '"') |
||||
// write string, the fast path, without utf8 and escape support
|
||||
i := 0 |
||||
for ; i < valLen; i++ { |
||||
c := s[i] |
||||
if c < utf8.RuneSelf && htmlSafeSet[c] { |
||||
stream.buf = append(stream.buf, c) |
||||
} else { |
||||
break |
||||
} |
||||
} |
||||
if i == valLen { |
||||
stream.buf = append(stream.buf, '"') |
||||
return |
||||
} |
||||
writeStringSlowPathWithHTMLEscaped(stream, i, s, valLen) |
||||
} |
||||
|
||||
func writeStringSlowPathWithHTMLEscaped(stream *Stream, i int, s string, valLen int) { |
||||
start := i |
||||
// for the remaining parts, we process them char by char
|
||||
for i < valLen { |
||||
if b := s[i]; b < utf8.RuneSelf { |
||||
if htmlSafeSet[b] { |
||||
i++ |
||||
continue |
||||
} |
||||
if start < i { |
||||
stream.WriteRaw(s[start:i]) |
||||
} |
||||
switch b { |
||||
case '\\', '"': |
||||
stream.writeTwoBytes('\\', b) |
||||
case '\n': |
||||
stream.writeTwoBytes('\\', 'n') |
||||
case '\r': |
||||
stream.writeTwoBytes('\\', 'r') |
||||
case '\t': |
||||
stream.writeTwoBytes('\\', 't') |
||||
default: |
||||
// This encodes bytes < 0x20 except for \t, \n and \r.
|
||||
// If escapeHTML is set, it also escapes <, >, and &
|
||||
// because they can lead to security holes when
|
||||
// user-controlled strings are rendered into JSON
|
||||
// and served to some browsers.
|
||||
stream.WriteRaw(`\u00`) |
||||
stream.writeTwoBytes(hex[b>>4], hex[b&0xF]) |
||||
} |
||||
i++ |
||||
start = i |
||||
continue |
||||
} |
||||
c, size := utf8.DecodeRuneInString(s[i:]) |
||||
if c == utf8.RuneError && size == 1 { |
||||
if start < i { |
||||
stream.WriteRaw(s[start:i]) |
||||
} |
||||
stream.WriteRaw(`\ufffd`) |
||||
i++ |
||||
start = i |
||||
continue |
||||
} |
||||
// U+2028 is LINE SEPARATOR.
|
||||
// U+2029 is PARAGRAPH SEPARATOR.
|
||||
// They are both technically valid characters in JSON strings,
|
||||
// but don't work in JSONP, which has to be evaluated as JavaScript,
|
||||
// and can lead to security holes there. It is valid JSON to
|
||||
// escape them, so we do so unconditionally.
|
||||
// See http://timelessrepo.com/json-isnt-a-javascript-subset for discussion.
|
||||
if c == '\u2028' || c == '\u2029' { |
||||
if start < i { |
||||
stream.WriteRaw(s[start:i]) |
||||
} |
||||
stream.WriteRaw(`\u202`) |
||||
stream.writeByte(hex[c&0xF]) |
||||
i += size |
||||
start = i |
||||
continue |
||||
} |
||||
i += size |
||||
} |
||||
if start < len(s) { |
||||
stream.WriteRaw(s[start:]) |
||||
} |
||||
stream.writeByte('"') |
||||
} |
||||
|
||||
// WriteString write string to stream without html escape
|
||||
func (stream *Stream) WriteString(s string) { |
||||
valLen := len(s) |
||||
stream.buf = append(stream.buf, '"') |
||||
// write string, the fast path, without utf8 and escape support
|
||||
i := 0 |
||||
for ; i < valLen; i++ { |
||||
c := s[i] |
||||
if c > 31 && c != '"' && c != '\\' { |
||||
stream.buf = append(stream.buf, c) |
||||
} else { |
||||
break |
||||
} |
||||
} |
||||
if i == valLen { |
||||
stream.buf = append(stream.buf, '"') |
||||
return |
||||
} |
||||
writeStringSlowPath(stream, i, s, valLen) |
||||
} |
||||
|
||||
func writeStringSlowPath(stream *Stream, i int, s string, valLen int) { |
||||
start := i |
||||
// for the remaining parts, we process them char by char
|
||||
for i < valLen { |
||||
if b := s[i]; b < utf8.RuneSelf { |
||||
if safeSet[b] { |
||||
i++ |
||||
continue |
||||
} |
||||
if start < i { |
||||
stream.WriteRaw(s[start:i]) |
||||
} |
||||
switch b { |
||||
case '\\', '"': |
||||
stream.writeTwoBytes('\\', b) |
||||
case '\n': |
||||
stream.writeTwoBytes('\\', 'n') |
||||
case '\r': |
||||
stream.writeTwoBytes('\\', 'r') |
||||
case '\t': |
||||
stream.writeTwoBytes('\\', 't') |
||||
default: |
||||
// This encodes bytes < 0x20 except for \t, \n and \r.
|
||||
// If escapeHTML is set, it also escapes <, >, and &
|
||||
// because they can lead to security holes when
|
||||
// user-controlled strings are rendered into JSON
|
||||
// and served to some browsers.
|
||||
stream.WriteRaw(`\u00`) |
||||
stream.writeTwoBytes(hex[b>>4], hex[b&0xF]) |
||||
} |
||||
i++ |
||||
start = i |
||||
continue |
||||
} |
||||
i++ |
||||
continue |
||||
} |
||||
if start < len(s) { |
||||
stream.WriteRaw(s[start:]) |
||||
} |
||||
stream.writeByte('"') |
||||
} |
||||
@ -0,0 +1,12 @@ |
||||
#!/usr/bin/env bash |
||||
|
||||
set -e |
||||
echo "" > coverage.txt |
||||
|
||||
for d in $(go list ./... | grep -v vendor); do |
||||
go test -coverprofile=profile.out -coverpkg=github.com/json-iterator/go $d |
||||
if [ -f profile.out ]; then |
||||
cat profile.out >> coverage.txt |
||||
rm profile.out |
||||
fi |
||||
done |
||||
@ -0,0 +1,24 @@ |
||||
# Compiled Object files, Static and Dynamic libs (Shared Objects) |
||||
*.o |
||||
*.a |
||||
*.so |
||||
|
||||
# Folders |
||||
_obj |
||||
_test |
||||
|
||||
# Architecture specific extensions/prefixes |
||||
*.[568vq] |
||||
[568vq].out |
||||
|
||||
*.cgo1.go |
||||
*.cgo2.c |
||||
_cgo_defun.c |
||||
_cgo_gotypes.go |
||||
_cgo_export.* |
||||
|
||||
_testmain.go |
||||
|
||||
*.exe |
||||
*.test |
||||
*.prof |
||||
@ -0,0 +1,46 @@ |
||||
language: go |
||||
|
||||
os: |
||||
- linux |
||||
- osx |
||||
- windows |
||||
|
||||
arch: |
||||
- amd64 |
||||
- arm64 |
||||
|
||||
go: |
||||
- 1.12.x |
||||
- 1.13.x |
||||
- 1.14.x |
||||
- master |
||||
|
||||
script: |
||||
- go vet ./... |
||||
- go test -race ./... |
||||
- go test -tags=noasm ./... |
||||
|
||||
stages: |
||||
- gofmt |
||||
- test |
||||
|
||||
matrix: |
||||
allow_failures: |
||||
- go: 'master' |
||||
fast_finish: true |
||||
include: |
||||
- stage: gofmt |
||||
go: 1.14.x |
||||
os: linux |
||||
arch: amd64 |
||||
script: |
||||
- diff <(gofmt -d .) <(printf "") |
||||
- diff <(gofmt -d ./private) <(printf "") |
||||
- go install github.com/klauspost/asmfmt/cmd/asmfmt |
||||
- diff <(asmfmt -d .) <(printf "") |
||||
- stage: i386 |
||||
go: 1.14.x |
||||
os: linux |
||||
arch: amd64 |
||||
script: |
||||
- GOOS=linux GOARCH=386 go test . |
||||
@ -0,0 +1,35 @@ |
||||
Developer Certificate of Origin |
||||
Version 1.1 |
||||
|
||||
Copyright (C) 2015- Klaus Post & Contributors. |
||||
Email: klauspost@gmail.com |
||||
|
||||
Everyone is permitted to copy and distribute verbatim copies of this |
||||
license document, but changing it is not allowed. |
||||
|
||||
|
||||
Developer's Certificate of Origin 1.1 |
||||
|
||||
By making a contribution to this project, I certify that: |
||||
|
||||
(a) The contribution was created in whole or in part by me and I |
||||
have the right to submit it under the open source license |
||||
indicated in the file; or |
||||
|
||||
(b) The contribution is based upon previous work that, to the best |
||||
of my knowledge, is covered under an appropriate open source |
||||
license and I have the right under that license to submit that |
||||
work with modifications, whether created in whole or in part |
||||
by me, under the same open source license (unless I am |
||||
permitted to submit under a different license), as indicated |
||||
in the file; or |
||||
|
||||
(c) The contribution was provided directly to me by some other |
||||
person who certified (a), (b) or (c) and I have not modified |
||||
it. |
||||
|
||||
(d) I understand and agree that this project and the contribution |
||||
are public and that a record of the contribution (including all |
||||
personal information I submit with it, including my sign-off) is |
||||
maintained indefinitely and may be redistributed consistent with |
||||
this project or the open source license(s) involved. |
||||
@ -0,0 +1,22 @@ |
||||
The MIT License (MIT) |
||||
|
||||
Copyright (c) 2015 Klaus Post |
||||
|
||||
Permission is hereby granted, free of charge, to any person obtaining a copy |
||||
of this software and associated documentation files (the "Software"), to deal |
||||
in the Software without restriction, including without limitation the rights |
||||
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
||||
copies of the Software, and to permit persons to whom the Software is |
||||
furnished to do so, subject to the following conditions: |
||||
|
||||
The above copyright notice and this permission notice shall be included in all |
||||
copies or substantial portions of the Software. |
||||
|
||||
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
||||
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
||||
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
||||
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
||||
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
||||
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
||||
SOFTWARE. |
||||
|
||||
@ -0,0 +1,191 @@ |
||||
# cpuid |
||||
Package cpuid provides information about the CPU running the current program. |
||||
|
||||
CPU features are detected on startup, and kept for fast access through the life of the application. |
||||
Currently x86 / x64 (AMD64/i386) and ARM (ARM64) is supported, and no external C (cgo) code is used, which should make the library very easy to use. |
||||
|
||||
You can access the CPU information by accessing the shared CPU variable of the cpuid library. |
||||
|
||||
Package home: https://github.com/klauspost/cpuid |
||||
|
||||
[![GoDoc][1]][2] [![Build Status][3]][4] |
||||
|
||||
[1]: https://godoc.org/github.com/klauspost/cpuid?status.svg |
||||
[2]: https://godoc.org/github.com/klauspost/cpuid |
||||
[3]: https://travis-ci.org/klauspost/cpuid.svg?branch=master |
||||
[4]: https://travis-ci.org/klauspost/cpuid |
||||
|
||||
# features |
||||
|
||||
## x86 CPU Instructions |
||||
* **CMOV** (i686 CMOV) |
||||
* **NX** (NX (No-Execute) bit) |
||||
* **AMD3DNOW** (AMD 3DNOW) |
||||
* **AMD3DNOWEXT** (AMD 3DNowExt) |
||||
* **MMX** (standard MMX) |
||||
* **MMXEXT** (SSE integer functions or AMD MMX ext) |
||||
* **SSE** (SSE functions) |
||||
* **SSE2** (P4 SSE functions) |
||||
* **SSE3** (Prescott SSE3 functions) |
||||
* **SSSE3** (Conroe SSSE3 functions) |
||||
* **SSE4** (Penryn SSE4.1 functions) |
||||
* **SSE4A** (AMD Barcelona microarchitecture SSE4a instructions) |
||||
* **SSE42** (Nehalem SSE4.2 functions) |
||||
* **AVX** (AVX functions) |
||||
* **AVX2** (AVX2 functions) |
||||
* **FMA3** (Intel FMA 3) |
||||
* **FMA4** (Bulldozer FMA4 functions) |
||||
* **XOP** (Bulldozer XOP functions) |
||||
* **F16C** (Half-precision floating-point conversion) |
||||
* **BMI1** (Bit Manipulation Instruction Set 1) |
||||
* **BMI2** (Bit Manipulation Instruction Set 2) |
||||
* **TBM** (AMD Trailing Bit Manipulation) |
||||
* **LZCNT** (LZCNT instruction) |
||||
* **POPCNT** (POPCNT instruction) |
||||
* **AESNI** (Advanced Encryption Standard New Instructions) |
||||
* **CLMUL** (Carry-less Multiplication) |
||||
* **HTT** (Hyperthreading (enabled)) |
||||
* **HLE** (Hardware Lock Elision) |
||||
* **RTM** (Restricted Transactional Memory) |
||||
* **RDRAND** (RDRAND instruction is available) |
||||
* **RDSEED** (RDSEED instruction is available) |
||||
* **ADX** (Intel ADX (Multi-Precision Add-Carry Instruction Extensions)) |
||||
* **SHA** (Intel SHA Extensions) |
||||
* **AVX512F** (AVX-512 Foundation) |
||||
* **AVX512DQ** (AVX-512 Doubleword and Quadword Instructions) |
||||
* **AVX512IFMA** (AVX-512 Integer Fused Multiply-Add Instructions) |
||||
* **AVX512PF** (AVX-512 Prefetch Instructions) |
||||
* **AVX512ER** (AVX-512 Exponential and Reciprocal Instructions) |
||||
* **AVX512CD** (AVX-512 Conflict Detection Instructions) |
||||
* **AVX512BW** (AVX-512 Byte and Word Instructions) |
||||
* **AVX512VL** (AVX-512 Vector Length Extensions) |
||||
* **AVX512VBMI** (AVX-512 Vector Bit Manipulation Instructions) |
||||
* **AVX512VBMI2** (AVX-512 Vector Bit Manipulation Instructions, Version 2) |
||||
* **AVX512VNNI** (AVX-512 Vector Neural Network Instructions) |
||||
* **AVX512VPOPCNTDQ** (AVX-512 Vector Population Count Doubleword and Quadword) |
||||
* **GFNI** (Galois Field New Instructions) |
||||
* **VAES** (Vector AES) |
||||
* **AVX512BITALG** (AVX-512 Bit Algorithms) |
||||
* **VPCLMULQDQ** (Carry-Less Multiplication Quadword) |
||||
* **AVX512BF16** (AVX-512 BFLOAT16 Instructions) |
||||
* **AVX512VP2INTERSECT** (AVX-512 Intersect for D/Q) |
||||
* **MPX** (Intel MPX (Memory Protection Extensions)) |
||||
* **ERMS** (Enhanced REP MOVSB/STOSB) |
||||
* **RDTSCP** (RDTSCP Instruction) |
||||
* **CX16** (CMPXCHG16B Instruction) |
||||
* **SGX** (Software Guard Extensions, with activation details) |
||||
* **VMX** (Virtual Machine Extensions) |
||||
|
||||
## Performance |
||||
* **RDTSCP()** Returns current cycle count. Can be used for benchmarking. |
||||
* **SSE2SLOW** (SSE2 is supported, but usually not faster) |
||||
* **SSE3SLOW** (SSE3 is supported, but usually not faster) |
||||
* **ATOM** (Atom processor, some SSSE3 instructions are slower) |
||||
* **Cache line** (Probable size of a cache line). |
||||
* **L1, L2, L3 Cache size** on newer Intel/AMD CPUs. |
||||
|
||||
## ARM CPU features |
||||
|
||||
# ARM FEATURE DETECTION DISABLED! |
||||
|
||||
See [#52](https://github.com/klauspost/cpuid/issues/52). |
||||
|
||||
Currently only `arm64` platforms are implemented. |
||||
|
||||
* **FP** Single-precision and double-precision floating point |
||||
* **ASIMD** Advanced SIMD |
||||
* **EVTSTRM** Generic timer |
||||
* **AES** AES instructions |
||||
* **PMULL** Polynomial Multiply instructions (PMULL/PMULL2) |
||||
* **SHA1** SHA-1 instructions (SHA1C, etc) |
||||
* **SHA2** SHA-2 instructions (SHA256H, etc) |
||||
* **CRC32** CRC32/CRC32C instructions |
||||
* **ATOMICS** Large System Extensions (LSE) |
||||
* **FPHP** Half-precision floating point |
||||
* **ASIMDHP** Advanced SIMD half-precision floating point |
||||
* **ARMCPUID** Some CPU ID registers readable at user-level |
||||
* **ASIMDRDM** Rounding Double Multiply Accumulate/Subtract (SQRDMLAH/SQRDMLSH) |
||||
* **JSCVT** Javascript-style double->int convert (FJCVTZS) |
||||
* **FCMA** Floating point complex number addition and multiplication |
||||
* **LRCPC** Weaker release consistency (LDAPR, etc) |
||||
* **DCPOP** Data cache clean to Point of Persistence (DC CVAP) |
||||
* **SHA3** SHA-3 instructions (EOR3, RAXI, XAR, BCAX) |
||||
* **SM3** SM3 instructions |
||||
* **SM4** SM4 instructions |
||||
* **ASIMDDP** SIMD Dot Product |
||||
* **SHA512** SHA512 instructions |
||||
* **SVE** Scalable Vector Extension |
||||
* **GPA** Generic Pointer Authentication |
||||
|
||||
## Cpu Vendor/VM |
||||
* **Intel** |
||||
* **AMD** |
||||
* **VIA** |
||||
* **Transmeta** |
||||
* **NSC** |
||||
* **KVM** (Kernel-based Virtual Machine) |
||||
* **MSVM** (Microsoft Hyper-V or Windows Virtual PC) |
||||
* **VMware** |
||||
* **XenHVM** |
||||
* **Bhyve** |
||||
* **Hygon** |
||||
|
||||
# installing |
||||
|
||||
```go get github.com/klauspost/cpuid``` |
||||
|
||||
# example |
||||
|
||||
```Go |
||||
package main |
||||
|
||||
import ( |
||||
"fmt" |
||||
"github.com/klauspost/cpuid" |
||||
) |
||||
|
||||
func main() { |
||||
// Print basic CPU information: |
||||
fmt.Println("Name:", cpuid.CPU.BrandName) |
||||
fmt.Println("PhysicalCores:", cpuid.CPU.PhysicalCores) |
||||
fmt.Println("ThreadsPerCore:", cpuid.CPU.ThreadsPerCore) |
||||
fmt.Println("LogicalCores:", cpuid.CPU.LogicalCores) |
||||
fmt.Println("Family", cpuid.CPU.Family, "Model:", cpuid.CPU.Model) |
||||
fmt.Println("Features:", cpuid.CPU.Features) |
||||
fmt.Println("Cacheline bytes:", cpuid.CPU.CacheLine) |
||||
fmt.Println("L1 Data Cache:", cpuid.CPU.Cache.L1D, "bytes") |
||||
fmt.Println("L1 Instruction Cache:", cpuid.CPU.Cache.L1D, "bytes") |
||||
fmt.Println("L2 Cache:", cpuid.CPU.Cache.L2, "bytes") |
||||
fmt.Println("L3 Cache:", cpuid.CPU.Cache.L3, "bytes") |
||||
|
||||
// Test if we have a specific feature: |
||||
if cpuid.CPU.SSE() { |
||||
fmt.Println("We have Streaming SIMD Extensions") |
||||
} |
||||
} |
||||
``` |
||||
|
||||
Sample output: |
||||
``` |
||||
>go run main.go |
||||
Name: Intel(R) Core(TM) i5-2540M CPU @ 2.60GHz |
||||
PhysicalCores: 2 |
||||
ThreadsPerCore: 2 |
||||
LogicalCores: 4 |
||||
Family 6 Model: 42 |
||||
Features: CMOV,MMX,MMXEXT,SSE,SSE2,SSE3,SSSE3,SSE4.1,SSE4.2,AVX,AESNI,CLMUL |
||||
Cacheline bytes: 64 |
||||
We have Streaming SIMD Extensions |
||||
``` |
||||
|
||||
# private package |
||||
|
||||
In the "private" folder you can find an autogenerated version of the library you can include in your own packages. |
||||
|
||||
For this purpose all exports are removed, and functions and constants are lowercased. |
||||
|
||||
This is not a recommended way of using the library, but provided for convenience, if it is difficult for you to use external packages. |
||||
|
||||
# license |
||||
|
||||
This code is published under an MIT license. See LICENSE file for more information. |
||||
File diff suppressed because it is too large
Load Diff
@ -0,0 +1,42 @@ |
||||
// Copyright (c) 2015 Klaus Post, released under MIT License. See LICENSE file. |
||||
|
||||
//+build 386,!gccgo,!noasm,!appengine |
||||
|
||||
// func asmCpuid(op uint32) (eax, ebx, ecx, edx uint32) |
||||
TEXT ·asmCpuid(SB), 7, $0 |
||||
XORL CX, CX |
||||
MOVL op+0(FP), AX |
||||
CPUID |
||||
MOVL AX, eax+4(FP) |
||||
MOVL BX, ebx+8(FP) |
||||
MOVL CX, ecx+12(FP) |
||||
MOVL DX, edx+16(FP) |
||||
RET |
||||
|
||||
// func asmCpuidex(op, op2 uint32) (eax, ebx, ecx, edx uint32) |
||||
TEXT ·asmCpuidex(SB), 7, $0 |
||||
MOVL op+0(FP), AX |
||||
MOVL op2+4(FP), CX |
||||
CPUID |
||||
MOVL AX, eax+8(FP) |
||||
MOVL BX, ebx+12(FP) |
||||
MOVL CX, ecx+16(FP) |
||||
MOVL DX, edx+20(FP) |
||||
RET |
||||
|
||||
// func xgetbv(index uint32) (eax, edx uint32) |
||||
TEXT ·asmXgetbv(SB), 7, $0 |
||||
MOVL index+0(FP), CX |
||||
BYTE $0x0f; BYTE $0x01; BYTE $0xd0 // XGETBV
|
||||
MOVL AX, eax+4(FP) |
||||
MOVL DX, edx+8(FP) |
||||
RET |
||||
|
||||
// func asmRdtscpAsm() (eax, ebx, ecx, edx uint32) |
||||
TEXT ·asmRdtscpAsm(SB), 7, $0 |
||||
BYTE $0x0F; BYTE $0x01; BYTE $0xF9 // RDTSCP
|
||||
MOVL AX, eax+0(FP) |
||||
MOVL BX, ebx+4(FP) |
||||
MOVL CX, ecx+8(FP) |
||||
MOVL DX, edx+12(FP) |
||||
RET |
||||
@ -0,0 +1,42 @@ |
||||
// Copyright (c) 2015 Klaus Post, released under MIT License. See LICENSE file. |
||||
|
||||
//+build amd64,!gccgo,!noasm,!appengine |
||||
|
||||
// func asmCpuid(op uint32) (eax, ebx, ecx, edx uint32) |
||||
TEXT ·asmCpuid(SB), 7, $0 |
||||
XORQ CX, CX |
||||
MOVL op+0(FP), AX |
||||
CPUID |
||||
MOVL AX, eax+8(FP) |
||||
MOVL BX, ebx+12(FP) |
||||
MOVL CX, ecx+16(FP) |
||||
MOVL DX, edx+20(FP) |
||||
RET |
||||
|
||||
// func asmCpuidex(op, op2 uint32) (eax, ebx, ecx, edx uint32) |
||||
TEXT ·asmCpuidex(SB), 7, $0 |
||||
MOVL op+0(FP), AX |
||||
MOVL op2+4(FP), CX |
||||
CPUID |
||||
MOVL AX, eax+8(FP) |
||||
MOVL BX, ebx+12(FP) |
||||
MOVL CX, ecx+16(FP) |
||||
MOVL DX, edx+20(FP) |
||||
RET |
||||
|
||||
// func asmXgetbv(index uint32) (eax, edx uint32) |
||||
TEXT ·asmXgetbv(SB), 7, $0 |
||||
MOVL index+0(FP), CX |
||||
BYTE $0x0f; BYTE $0x01; BYTE $0xd0 // XGETBV
|
||||
MOVL AX, eax+8(FP) |
||||
MOVL DX, edx+12(FP) |
||||
RET |
||||
|
||||
// func asmRdtscpAsm() (eax, ebx, ecx, edx uint32) |
||||
TEXT ·asmRdtscpAsm(SB), 7, $0 |
||||
BYTE $0x0F; BYTE $0x01; BYTE $0xF9 // RDTSCP
|
||||
MOVL AX, eax+0(FP) |
||||
MOVL BX, ebx+4(FP) |
||||
MOVL CX, ecx+8(FP) |
||||
MOVL DX, edx+12(FP) |
||||
RET |
||||
@ -0,0 +1,26 @@ |
||||
// Copyright (c) 2015 Klaus Post, released under MIT License. See LICENSE file. |
||||
|
||||
//+build arm64,!gccgo |
||||
|
||||
// See https://www.kernel.org/doc/Documentation/arm64/cpu-feature-registers.txt |
||||
|
||||
// func getMidr |
||||
TEXT ·getMidr(SB), 7, $0 |
||||
WORD $0xd5380000 // mrs x0, midr_el1 /* Main ID Register */ |
||||
MOVD R0, midr+0(FP) |
||||
RET |
||||
|
||||
// func getProcFeatures |
||||
TEXT ·getProcFeatures(SB), 7, $0 |
||||
WORD $0xd5380400 // mrs x0, id_aa64pfr0_el1 /* Processor Feature Register 0 */ |
||||
MOVD R0, procFeatures+0(FP) |
||||
RET |
||||
|
||||
// func getInstAttributes |
||||
TEXT ·getInstAttributes(SB), 7, $0 |
||||
WORD $0xd5380600 // mrs x0, id_aa64isar0_el1 /* Instruction Set Attribute Register 0 */ |
||||
WORD $0xd5380621 // mrs x1, id_aa64isar1_el1 /* Instruction Set Attribute Register 1 */ |
||||
MOVD R0, instAttrReg0+0(FP) |
||||
MOVD R1, instAttrReg1+8(FP) |
||||
RET |
||||
|
||||
@ -0,0 +1,219 @@ |
||||
// Copyright (c) 2015 Klaus Post, released under MIT License. See LICENSE file.
|
||||
|
||||
//+build arm64,!gccgo,!noasm,!appengine
|
||||
|
||||
package cpuid |
||||
|
||||
func getMidr() (midr uint64) |
||||
func getProcFeatures() (procFeatures uint64) |
||||
func getInstAttributes() (instAttrReg0, instAttrReg1 uint64) |
||||
|
||||
func initCPU() { |
||||
cpuid = func(uint32) (a, b, c, d uint32) { return 0, 0, 0, 0 } |
||||
cpuidex = func(x, y uint32) (a, b, c, d uint32) { return 0, 0, 0, 0 } |
||||
xgetbv = func(uint32) (a, b uint32) { return 0, 0 } |
||||
rdtscpAsm = func() (a, b, c, d uint32) { return 0, 0, 0, 0 } |
||||
} |
||||
|
||||
func addInfo(c *CPUInfo) { |
||||
// ARM64 disabled for now.
|
||||
if true { |
||||
return |
||||
} |
||||
// midr := getMidr()
|
||||
|
||||
// MIDR_EL1 - Main ID Register
|
||||
// x--------------------------------------------------x
|
||||
// | Name | bits | visible |
|
||||
// |--------------------------------------------------|
|
||||
// | Implementer | [31-24] | y |
|
||||
// |--------------------------------------------------|
|
||||
// | Variant | [23-20] | y |
|
||||
// |--------------------------------------------------|
|
||||
// | Architecture | [19-16] | y |
|
||||
// |--------------------------------------------------|
|
||||
// | PartNum | [15-4] | y |
|
||||
// |--------------------------------------------------|
|
||||
// | Revision | [3-0] | y |
|
||||
// x--------------------------------------------------x
|
||||
|
||||
// fmt.Printf(" implementer: 0x%02x\n", (midr>>24)&0xff)
|
||||
// fmt.Printf(" variant: 0x%01x\n", (midr>>20)&0xf)
|
||||
// fmt.Printf("architecture: 0x%01x\n", (midr>>16)&0xf)
|
||||
// fmt.Printf(" part num: 0x%03x\n", (midr>>4)&0xfff)
|
||||
// fmt.Printf(" revision: 0x%01x\n", (midr>>0)&0xf)
|
||||
|
||||
procFeatures := getProcFeatures() |
||||
|
||||
// ID_AA64PFR0_EL1 - Processor Feature Register 0
|
||||
// x--------------------------------------------------x
|
||||
// | Name | bits | visible |
|
||||
// |--------------------------------------------------|
|
||||
// | DIT | [51-48] | y |
|
||||
// |--------------------------------------------------|
|
||||
// | SVE | [35-32] | y |
|
||||
// |--------------------------------------------------|
|
||||
// | GIC | [27-24] | n |
|
||||
// |--------------------------------------------------|
|
||||
// | AdvSIMD | [23-20] | y |
|
||||
// |--------------------------------------------------|
|
||||
// | FP | [19-16] | y |
|
||||
// |--------------------------------------------------|
|
||||
// | EL3 | [15-12] | n |
|
||||
// |--------------------------------------------------|
|
||||
// | EL2 | [11-8] | n |
|
||||
// |--------------------------------------------------|
|
||||
// | EL1 | [7-4] | n |
|
||||
// |--------------------------------------------------|
|
||||
// | EL0 | [3-0] | n |
|
||||
// x--------------------------------------------------x
|
||||
|
||||
var f ArmFlags |
||||
// if procFeatures&(0xf<<48) != 0 {
|
||||
// fmt.Println("DIT")
|
||||
// }
|
||||
if procFeatures&(0xf<<32) != 0 { |
||||
f |= SVE |
||||
} |
||||
if procFeatures&(0xf<<20) != 15<<20 { |
||||
f |= ASIMD |
||||
if procFeatures&(0xf<<20) == 1<<20 { |
||||
// https://developer.arm.com/docs/ddi0595/b/aarch64-system-registers/id_aa64pfr0_el1
|
||||
// 0b0001 --> As for 0b0000, and also includes support for half-precision floating-point arithmetic.
|
||||
f |= FPHP |
||||
f |= ASIMDHP |
||||
} |
||||
} |
||||
if procFeatures&(0xf<<16) != 0 { |
||||
f |= FP |
||||
} |
||||
|
||||
instAttrReg0, instAttrReg1 := getInstAttributes() |
||||
|
||||
// https://developer.arm.com/docs/ddi0595/b/aarch64-system-registers/id_aa64isar0_el1
|
||||
//
|
||||
// ID_AA64ISAR0_EL1 - Instruction Set Attribute Register 0
|
||||
// x--------------------------------------------------x
|
||||
// | Name | bits | visible |
|
||||
// |--------------------------------------------------|
|
||||
// | TS | [55-52] | y |
|
||||
// |--------------------------------------------------|
|
||||
// | FHM | [51-48] | y |
|
||||
// |--------------------------------------------------|
|
||||
// | DP | [47-44] | y |
|
||||
// |--------------------------------------------------|
|
||||
// | SM4 | [43-40] | y |
|
||||
// |--------------------------------------------------|
|
||||
// | SM3 | [39-36] | y |
|
||||
// |--------------------------------------------------|
|
||||
// | SHA3 | [35-32] | y |
|
||||
// |--------------------------------------------------|
|
||||
// | RDM | [31-28] | y |
|
||||
// |--------------------------------------------------|
|
||||
// | ATOMICS | [23-20] | y |
|
||||
// |--------------------------------------------------|
|
||||
// | CRC32 | [19-16] | y |
|
||||
// |--------------------------------------------------|
|
||||
// | SHA2 | [15-12] | y |
|
||||
// |--------------------------------------------------|
|
||||
// | SHA1 | [11-8] | y |
|
||||
// |--------------------------------------------------|
|
||||
// | AES | [7-4] | y |
|
||||
// x--------------------------------------------------x
|
||||
|
||||
// if instAttrReg0&(0xf<<52) != 0 {
|
||||
// fmt.Println("TS")
|
||||
// }
|
||||
// if instAttrReg0&(0xf<<48) != 0 {
|
||||
// fmt.Println("FHM")
|
||||
// }
|
||||
if instAttrReg0&(0xf<<44) != 0 { |
||||
f |= ASIMDDP |
||||
} |
||||
if instAttrReg0&(0xf<<40) != 0 { |
||||
f |= SM4 |
||||
} |
||||
if instAttrReg0&(0xf<<36) != 0 { |
||||
f |= SM3 |
||||
} |
||||
if instAttrReg0&(0xf<<32) != 0 { |
||||
f |= SHA3 |
||||
} |
||||
if instAttrReg0&(0xf<<28) != 0 { |
||||
f |= ASIMDRDM |
||||
} |
||||
if instAttrReg0&(0xf<<20) != 0 { |
||||
f |= ATOMICS |
||||
} |
||||
if instAttrReg0&(0xf<<16) != 0 { |
||||
f |= CRC32 |
||||
} |
||||
if instAttrReg0&(0xf<<12) != 0 { |
||||
f |= SHA2 |
||||
} |
||||
if instAttrReg0&(0xf<<12) == 2<<12 { |
||||
// https://developer.arm.com/docs/ddi0595/b/aarch64-system-registers/id_aa64isar0_el1
|
||||
// 0b0010 --> As 0b0001, plus SHA512H, SHA512H2, SHA512SU0, and SHA512SU1 instructions implemented.
|
||||
f |= SHA512 |
||||
} |
||||
if instAttrReg0&(0xf<<8) != 0 { |
||||
f |= SHA1 |
||||
} |
||||
if instAttrReg0&(0xf<<4) != 0 { |
||||
f |= AES |
||||
} |
||||
if instAttrReg0&(0xf<<4) == 2<<4 { |
||||
// https://developer.arm.com/docs/ddi0595/b/aarch64-system-registers/id_aa64isar0_el1
|
||||
// 0b0010 --> As for 0b0001, plus PMULL/PMULL2 instructions operating on 64-bit data quantities.
|
||||
f |= PMULL |
||||
} |
||||
|
||||
// https://developer.arm.com/docs/ddi0595/b/aarch64-system-registers/id_aa64isar1_el1
|
||||
//
|
||||
// ID_AA64ISAR1_EL1 - Instruction set attribute register 1
|
||||
// x--------------------------------------------------x
|
||||
// | Name | bits | visible |
|
||||
// |--------------------------------------------------|
|
||||
// | GPI | [31-28] | y |
|
||||
// |--------------------------------------------------|
|
||||
// | GPA | [27-24] | y |
|
||||
// |--------------------------------------------------|
|
||||
// | LRCPC | [23-20] | y |
|
||||
// |--------------------------------------------------|
|
||||
// | FCMA | [19-16] | y |
|
||||
// |--------------------------------------------------|
|
||||
// | JSCVT | [15-12] | y |
|
||||
// |--------------------------------------------------|
|
||||
// | API | [11-8] | y |
|
||||
// |--------------------------------------------------|
|
||||
// | APA | [7-4] | y |
|
||||
// |--------------------------------------------------|
|
||||
// | DPB | [3-0] | y |
|
||||
// x--------------------------------------------------x
|
||||
|
||||
// if instAttrReg1&(0xf<<28) != 0 {
|
||||
// fmt.Println("GPI")
|
||||
// }
|
||||
if instAttrReg1&(0xf<<28) != 24 { |
||||
f |= GPA |
||||
} |
||||
if instAttrReg1&(0xf<<20) != 0 { |
||||
f |= LRCPC |
||||
} |
||||
if instAttrReg1&(0xf<<16) != 0 { |
||||
f |= FCMA |
||||
} |
||||
if instAttrReg1&(0xf<<12) != 0 { |
||||
f |= JSCVT |
||||
} |
||||
// if instAttrReg1&(0xf<<8) != 0 {
|
||||
// fmt.Println("API")
|
||||
// }
|
||||
// if instAttrReg1&(0xf<<4) != 0 {
|
||||
// fmt.Println("APA")
|
||||
// }
|
||||
if instAttrReg1&(0xf<<0) != 0 { |
||||
f |= DCPOP |
||||
} |
||||
c.Arm = f |
||||
} |
||||
@ -0,0 +1,33 @@ |
||||
// Copyright (c) 2015 Klaus Post, released under MIT License. See LICENSE file.
|
||||
|
||||
//+build 386,!gccgo,!noasm amd64,!gccgo,!noasm,!appengine
|
||||
|
||||
package cpuid |
||||
|
||||
func asmCpuid(op uint32) (eax, ebx, ecx, edx uint32) |
||||
func asmCpuidex(op, op2 uint32) (eax, ebx, ecx, edx uint32) |
||||
func asmXgetbv(index uint32) (eax, edx uint32) |
||||
func asmRdtscpAsm() (eax, ebx, ecx, edx uint32) |
||||
|
||||
func initCPU() { |
||||
cpuid = asmCpuid |
||||
cpuidex = asmCpuidex |
||||
xgetbv = asmXgetbv |
||||
rdtscpAsm = asmRdtscpAsm |
||||
} |
||||
|
||||
func addInfo(c *CPUInfo) { |
||||
c.maxFunc = maxFunctionID() |
||||
c.maxExFunc = maxExtendedFunction() |
||||
c.BrandName = brandName() |
||||
c.CacheLine = cacheLine() |
||||
c.Family, c.Model = familyModel() |
||||
c.Features = support() |
||||
c.SGX = hasSGX(c.Features&SGX != 0, c.Features&SGXLC != 0) |
||||
c.ThreadsPerCore = threadsPerCore() |
||||
c.LogicalCores = logicalCores() |
||||
c.PhysicalCores = physicalCores() |
||||
c.VendorID, c.VendorString = vendorID() |
||||
c.Hz = hertz(c.BrandName) |
||||
c.cacheSize() |
||||
} |
||||
@ -0,0 +1,14 @@ |
||||
// Copyright (c) 2015 Klaus Post, released under MIT License. See LICENSE file.
|
||||
|
||||
//+build !amd64,!386,!arm64 gccgo noasm appengine
|
||||
|
||||
package cpuid |
||||
|
||||
func initCPU() { |
||||
cpuid = func(uint32) (a, b, c, d uint32) { return 0, 0, 0, 0 } |
||||
cpuidex = func(x, y uint32) (a, b, c, d uint32) { return 0, 0, 0, 0 } |
||||
xgetbv = func(uint32) (a, b uint32) { return 0, 0 } |
||||
rdtscpAsm = func() (a, b, c, d uint32) { return 0, 0, 0, 0 } |
||||
} |
||||
|
||||
func addInfo(info *CPUInfo) {} |
||||
@ -0,0 +1,3 @@ |
||||
module github.com/klauspost/cpuid |
||||
|
||||
go 1.12 |
||||
Some files were not shown because too many files have changed in this diff Show More
Loading…
Reference in new issue