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51 lines
2.2 KiB
51 lines
2.2 KiB
// Copyright (C) MongoDB, Inc. 2017-present.
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//
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// Licensed under the Apache License, Version 2.0 (the "License"); you may
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// not use this file except in compliance with the License. You may obtain
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// a copy of the License at http://www.apache.org/licenses/LICENSE-2.0
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package bson
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import (
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"go.mongodb.org/mongo-driver/x/bsonx/bsoncore"
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)
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// RawElement represents a BSON element in byte form. This type provides a simple way to
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// transform a slice of bytes into a BSON element and extract information from it.
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//
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// RawElement is a thin wrapper around a bsoncore.Element.
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type RawElement []byte
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// Key returns the key for this element. If the element is not valid, this method returns an empty
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// string. If knowing if the element is valid is important, use KeyErr.
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func (re RawElement) Key() string { return bsoncore.Element(re).Key() }
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// KeyErr returns the key for this element, returning an error if the element is not valid.
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func (re RawElement) KeyErr() (string, error) { return bsoncore.Element(re).KeyErr() }
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// Value returns the value of this element. If the element is not valid, this method returns an
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// empty Value. If knowing if the element is valid is important, use ValueErr.
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func (re RawElement) Value() RawValue { return convertFromCoreValue(bsoncore.Element(re).Value()) }
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// ValueErr returns the value for this element, returning an error if the element is not valid.
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func (re RawElement) ValueErr() (RawValue, error) {
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val, err := bsoncore.Element(re).ValueErr()
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return convertFromCoreValue(val), err
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}
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// Validate ensures re is a valid BSON element.
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func (re RawElement) Validate() error { return bsoncore.Element(re).Validate() }
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// String implements the fmt.Stringer interface. The output will be in extended JSON format.
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func (re RawElement) String() string {
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doc := bsoncore.BuildDocument(nil, re)
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j, err := MarshalExtJSON(Raw(doc), true, false)
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if err != nil {
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return "<malformed>"
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}
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return string(j)
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}
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// DebugString outputs a human readable version of RawElement. It will attempt to stringify the
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// valid components of the element even if the entire element is not valid.
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func (re RawElement) DebugString() string { return bsoncore.Element(re).DebugString() }
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