tile38/vendor/github.com/tidwall/gjson/gjson.go

// Package gjson provides searching for json strings.
package gjson

import (
	"reflect"
	"strconv"
	"unsafe"

	"github.com/tidwall/match"
)

// Type is Result type
type Type int

const (
	// Null is a null json value
	Null Type = iota
	// False is a json false boolean
	False
	// Number is json number
	Number
	// String is a json string
	String
	// True is a json true boolean
	True
	// JSON is a raw block of JSON
	JSON
)

// String returns a string representation of the type.
func (t Type) String() string {
	switch t {
	default:
		return ""
	case Null:
		return "Null"
	case False:
		return "False"
	case Number:
		return "Number"
	case String:
		return "String"
	case True:
		return "True"
	case JSON:
		return "JSON"
	}
}

// Result represents a json value that is returned from Get().
type Result struct {
	// Type is the json type
	Type Type
	// Raw is the raw json
	Raw string
	// Str is the json string
	Str string
	// Num is the json number
	Num float64
	// Index of raw value in original json, zero means index unknown
	Index int
}

// String returns a string representation of the value.
func (t Result) String() string {
	switch t.Type {
	default:
		return "null"
	case False:
		return "false"
	case Number:
		return strconv.FormatFloat(t.Num, 'f', -1, 64)
	case String:
		return t.Str
	case JSON:
		return t.Raw
	case True:
		return "true"
	}
}

// Bool returns an boolean representation.
func (t Result) Bool() bool {
	switch t.Type {
	default:
		return false
	case True:
		return true
	case String:
		return t.Str != "" && t.Str != "0"
	case Number:
		return t.Num != 0
	}
}

// Int returns an integer representation.
func (t Result) Int() int64 {
	switch t.Type {
	default:
		return 0
	case True:
		return 1
	case String:
		n, _ := strconv.ParseInt(t.Str, 10, 64)
		return n
	case Number:
		return int64(t.Num)
	}
}

// Uint returns an unsigned integer representation.
func (t Result) Uint() uint64 {
	switch t.Type {
	default:
		return 0
	case True:
		return 1
	case String:
		n, _ := strconv.ParseUint(t.Str, 10, 64)
		return n
	case Number:
		return uint64(t.Num)
	}
}

// Float returns an float64 representation.
func (t Result) Float() float64 {
	switch t.Type {
	default:
		return 0
	case True:
		return 1
	case String:
		n, _ := strconv.ParseFloat(t.Str, 64)
		return n
	case Number:
		return t.Num
	}
}

// Array returns back an array of values.
// If the result represents a non-existent value, then an empty array will be returned.
// If the result is not a JSON array, the return value will be an array containing one result.
func (t Result) Array() []Result {
	if !t.Exists() {
		return nil
	}
	if t.Type != JSON {
		return []Result{t}
	}
	<