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61 lines
2.2 KiB
Go
61 lines
2.2 KiB
Go
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// 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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//
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// Based on gopkg.in/mgo.v2/bson by Gustavo Niemeyer
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// See THIRD-PARTY-NOTICES for original license terms.
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// +build go1.9
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package bson // import "go.mongodb.org/mongo-driver/bson"
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import (
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"go.mongodb.org/mongo-driver/bson/primitive"
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)
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// Zeroer allows custom struct types to implement a report of zero
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// state. All struct types that don't implement Zeroer or where IsZero
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// returns false are considered to be not zero.
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type Zeroer interface {
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IsZero() bool
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}
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// D represents a BSON Document. This type can be used to represent BSON in a concise and readable
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// manner. It should generally be used when serializing to BSON. For deserializing, the Raw or
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// Document types should be used.
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//
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// Example usage:
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//
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// bson.D{{"foo", "bar"}, {"hello", "world"}, {"pi", 3.14159}}
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//
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// This type should be used in situations where order matters, such as MongoDB commands. If the
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// order is not important, a map is more comfortable and concise.
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type D = primitive.D
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// E represents a BSON element for a D. It is usually used inside a D.
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type E = primitive.E
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// M is an unordered, concise representation of a BSON Document. It should generally be used to
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// serialize BSON when the order of the elements of a BSON document do not matter. If the element
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// order matters, use a D instead.
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//
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// Example usage:
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//
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// bson.M{"foo": "bar", "hello": "world", "pi": 3.14159}
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//
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// This type is handled in the encoders as a regular map[string]interface{}. The elements will be
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// serialized in an undefined, random order, and the order will be different each time.
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type M = primitive.M
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// An A represents a BSON array. This type can be used to represent a BSON array in a concise and
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// readable manner. It should generally be used when serializing to BSON. For deserializing, the
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// RawArray or Array types should be used.
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//
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// Example usage:
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//
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// bson.A{"bar", "world", 3.14159, bson.D{{"qux", 12345}}}
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//
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type A = primitive.A
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