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type_string.go
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/
type_string.go
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package otto
import (
"strconv"
"unicode/utf16"
)
type _stringObject struct {
value Value
value16 []uint16
}
func (runtime *_runtime) newStringObject(value Value) *_object {
value = toValue_string(toString(value))
value16 := utf16Of(value.value.(string))
self := runtime.newClassObject("String")
self.defineProperty("length", toValue_int(len(value16)), 0, false)
self.objectClass = _classString
self.value = _stringObject{
value: value,
value16: value16,
}
return self
}
func (self *_object) stringValue() (string, _stringObject) {
value, valid := self.value.(_stringObject)
if valid {
return value.value.value.(string), value
}
return "", _stringObject{}
}
func (self *_object) stringValue16() []uint16 {
_, value := self.stringValue()
return value.value16
}
func utf16Of(value string) []uint16 {
return utf16.Encode([]rune(value))
}
func stringEnumerate(self *_object, all bool, each func(string) bool) {
length := len(self.stringValue16())
for index := 0; index < length; index += 1 {
if !each(strconv.FormatInt(int64(index), 10)) {
return
}
}
objectEnumerate(self, all, each)
}
func stringGetOwnProperty(self *_object, name string) *_property {
if property := objectGetOwnProperty(self, name); property != nil {
return property
}
index := stringToArrayIndex(name)
if index >= 0 {
value16 := self.stringValue16()
if index < int64(len(value16)) {
return &_property{toValue_string(string(value16[index])), 0}
}
}
return nil
}