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87 lines
2.9 KiB
Go
87 lines
2.9 KiB
Go
// 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 bsonrw
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import (
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"go.mongodb.org/mongo-driver/bson/bsontype"
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"go.mongodb.org/mongo-driver/bson/primitive"
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)
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// ArrayWriter is the interface used to create a BSON or BSON adjacent array.
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// Callers must ensure they call WriteArrayEnd when they have finished creating
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// the array.
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type ArrayWriter interface {
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WriteArrayElement() (ValueWriter, error)
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WriteArrayEnd() error
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}
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// DocumentWriter is the interface used to create a BSON or BSON adjacent
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// document. Callers must ensure they call WriteDocumentEnd when they have
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// finished creating the document.
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type DocumentWriter interface {
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WriteDocumentElement(string) (ValueWriter, error)
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WriteDocumentEnd() error
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}
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// ValueWriter is the interface used to write BSON values. Implementations of
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// this interface handle creating BSON or BSON adjacent representations of the
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// values.
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type ValueWriter interface {
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WriteArray() (ArrayWriter, error)
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WriteBinary(b []byte) error
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WriteBinaryWithSubtype(b []byte, btype byte) error
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WriteBoolean(bool) error
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WriteCodeWithScope(code string) (DocumentWriter, error)
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WriteDBPointer(ns string, oid primitive.ObjectID) error
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WriteDateTime(dt int64) error
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WriteDecimal128(primitive.Decimal128) error
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WriteDouble(float64) error
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WriteInt32(int32) error
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WriteInt64(int64) error
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WriteJavascript(code string) error
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WriteMaxKey() error
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WriteMinKey() error
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WriteNull() error
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WriteObjectID(primitive.ObjectID) error
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WriteRegex(pattern, options string) error
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WriteString(string) error
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WriteDocument() (DocumentWriter, error)
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WriteSymbol(symbol string) error
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WriteTimestamp(t, i uint32) error
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WriteUndefined() error
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}
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// ValueWriterFlusher is a superset of ValueWriter that exposes functionality to flush to the underlying buffer.
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//
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// Deprecated: ValueWriterFlusher will not be supported in Go Driver 2.0.
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type ValueWriterFlusher interface {
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ValueWriter
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Flush() error
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}
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// BytesWriter is the interface used to write BSON bytes to a ValueWriter.
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// This interface is meant to be a superset of ValueWriter, so that types that
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// implement ValueWriter may also implement this interface.
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//
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// Deprecated: BytesWriter will not be supported in Go Driver 2.0.
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type BytesWriter interface {
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WriteValueBytes(t bsontype.Type, b []byte) error
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}
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// SliceWriter allows a pointer to a slice of bytes to be used as an io.Writer.
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//
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// Deprecated: SliceWriter will not be supported in Go Driver 2.0.
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type SliceWriter []byte
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// Write writes the bytes to the underlying slice.
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//
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// Deprecated: SliceWriter will not be supported in Go Driver 2.0.
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func (sw *SliceWriter) Write(p []byte) (int, error) {
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written := len(p)
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*sw = append(*sw, p...)
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return written, nil
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}
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