mirror of
https://github.com/go-gitea/gitea
synced 2024-07-07 10:35:48 +00:00
92 lines
2.7 KiB
Go
92 lines
2.7 KiB
Go
|
// 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
|
||
|
|
||
|
// +build !go1.9
|
||
|
|
||
|
package bson // import "go.mongodb.org/mongo-driver/bson"
|
||
|
|
||
|
import (
|
||
|
"math"
|
||
|
"strconv"
|
||
|
"strings"
|
||
|
)
|
||
|
|
||
|
// Zeroer allows custom struct types to implement a report of zero
|
||
|
// state. All struct types that don't implement Zeroer or where IsZero
|
||
|
// returns false are considered to be not zero.
|
||
|
type Zeroer interface {
|
||
|
IsZero() bool
|
||
|
}
|
||
|
|
||
|
// D represents a BSON Document. This type can be used to represent BSON in a concise and readable
|
||
|
// manner. It should generally be used when serializing to BSON. For deserializing, the Raw or
|
||
|
// Document types should be used.
|
||
|
//
|
||
|
// Example usage:
|
||
|
//
|
||
|
// primitive.D{{"foo", "bar"}, {"hello", "world"}, {"pi", 3.14159}}
|
||
|
//
|
||
|
// This type should be used in situations where order matters, such as MongoDB commands. If the
|
||
|
// order is not important, a map is more comfortable and concise.
|
||
|
type D []E
|
||
|
|
||
|
// Map creates a map from the elements of the D.
|
||
|
func (d D) Map() M {
|
||
|
m := make(M, len(d))
|
||
|
for _, e := range d {
|
||
|
m[e.Key] = e.Value
|
||
|
}
|
||
|
return m
|
||
|
}
|
||
|
|
||
|
// E represents a BSON element for a D. It is usually used inside a D.
|
||
|
type E struct {
|
||
|
Key string
|
||
|
Value interface{}
|
||
|
}
|
||
|
|
||
|
// M is an unordered, concise representation of a BSON Document. It should generally be used to
|
||
|
// serialize BSON when the order of the elements of a BSON document do not matter. If the element
|
||
|
// order matters, use a D instead.
|
||
|
//
|
||
|
// Example usage:
|
||
|
//
|
||
|
// primitive.M{"foo": "bar", "hello": "world", "pi": 3.14159}
|
||
|
//
|
||
|
// This type is handled in the encoders as a regular map[string]interface{}. The elements will be
|
||
|
// serialized in an undefined, random order, and the order will be different each time.
|
||
|
type M map[string]interface{}
|
||
|
|
||
|
// An A represents a BSON array. This type can be used to represent a BSON array in a concise and
|
||
|
// readable manner. It should generally be used when serializing to BSON. For deserializing, the
|
||
|
// RawArray or Array types should be used.
|
||
|
//
|
||
|
// Example usage:
|
||
|
//
|
||
|
// primitive.A{"bar", "world", 3.14159, primitive.D{{"qux", 12345}}}
|
||
|
//
|
||
|
type A []interface{}
|
||
|
|
||
|
func formatDouble(f float64) string {
|
||
|
var s string
|
||
|
if math.IsInf(f, 1) {
|
||
|
s = "Infinity"
|
||
|
} else if math.IsInf(f, -1) {
|
||
|
s = "-Infinity"
|
||
|
} else if math.IsNaN(f) {
|
||
|
s = "NaN"
|
||
|
} else {
|
||
|
// Print exactly one decimalType place for integers; otherwise, print as many are necessary to
|
||
|
// perfectly represent it.
|
||
|
s = strconv.FormatFloat(f, 'G', -1, 64)
|
||
|
if !strings.ContainsRune(s, '.') {
|
||
|
s += ".0"
|
||
|
}
|
||
|
}
|
||
|
|
||
|
return s
|
||
|
}
|