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https://github.com/go-gitea/gitea
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9fe4437bda
* Use vendored go-swagger * vendor go-swagger * revert un wanteed change * remove un-needed GO111MODULE * Update Makefile Co-Authored-By: techknowlogick <matti@mdranta.net>
92 lines
3.6 KiB
Go
Vendored
92 lines
3.6 KiB
Go
Vendored
// 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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"errors"
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"io"
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"go.mongodb.org/mongo-driver/x/bsonx/bsoncore"
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)
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// ErrNilReader indicates that an operation was attempted on a nil bson.Reader.
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var ErrNilReader = errors.New("nil reader")
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var errValidateDone = errors.New("validation loop complete")
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// Raw is a wrapper around a byte slice. It will interpret the slice as a
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// BSON document. This type is a wrapper around a bsoncore.Document. Errors returned from the
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// methods on this type and associated types come from the bsoncore package.
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type Raw []byte
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// NewFromIOReader reads in a document from the given io.Reader and constructs a Raw from
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// it.
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func NewFromIOReader(r io.Reader) (Raw, error) {
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doc, err := bsoncore.NewDocumentFromReader(r)
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return Raw(doc), err
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}
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// Validate validates the document. This method only validates the first document in
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// the slice, to validate other documents, the slice must be resliced.
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func (r Raw) Validate() (err error) { return bsoncore.Document(r).Validate() }
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// Lookup search the document, potentially recursively, for the given key. If
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// there are multiple keys provided, this method will recurse down, as long as
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// the top and intermediate nodes are either documents or arrays.If an error
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// occurs or if the value doesn't exist, an empty RawValue is returned.
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func (r Raw) Lookup(key ...string) RawValue {
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return convertFromCoreValue(bsoncore.Document(r).Lookup(key...))
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}
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// LookupErr searches the document and potentially subdocuments or arrays for the
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// provided key. Each key provided to this method represents a layer of depth.
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func (r Raw) LookupErr(key ...string) (RawValue, error) {
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val, err := bsoncore.Document(r).LookupErr(key...)
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return convertFromCoreValue(val), err
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}
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// Elements returns this document as a slice of elements. The returned slice will contain valid
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// elements. If the document is not valid, the elements up to the invalid point will be returned
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// along with an error.
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func (r Raw) Elements() ([]RawElement, error) {
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elems, err := bsoncore.Document(r).Elements()
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relems := make([]RawElement, 0, len(elems))
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for _, elem := range elems {
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relems = append(relems, RawElement(elem))
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}
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return relems, err
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}
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// Values returns this document as a slice of values. The returned slice will contain valid values.
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// If the document is not valid, the values up to the invalid point will be returned along with an
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// error.
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func (r Raw) Values() ([]RawValue, error) {
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vals, err := bsoncore.Document(r).Values()
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rvals := make([]RawValue, 0, len(vals))
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for _, val := range vals {
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rvals = append(rvals, convertFromCoreValue(val))
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}
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return rvals, err
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}
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// Index searches for and retrieves the element at the given index. This method will panic if
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// the document is invalid or if the index is out of bounds.
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func (r Raw) Index(index uint) RawElement { return RawElement(bsoncore.Document(r).Index(index)) }
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// IndexErr searches for and retrieves the element at the given index.
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func (r Raw) IndexErr(index uint) (RawElement, error) {
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elem, err := bsoncore.Document(r).IndexErr(index)
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return RawElement(elem), err
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}
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// String implements the fmt.Stringer interface.
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func (r Raw) String() string { return bsoncore.Document(r).String() }
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// readi32 is a helper function for reading an int32 from slice of bytes.
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func readi32(b []byte) int32 {
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_ = b[3] // bounds check hint to compiler; see golang.org/issue/14808
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return int32(b[0]) | int32(b[1])<<8 | int32(b[2])<<16 | int32(b[3])<<24
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}
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