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