2015-02-16 05:28:33 -08:00
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package otto
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import (
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"strconv"
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)
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2015-03-20 05:22:01 -07:00
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func (runtime *_runtime) newArgumentsObject(indexOfParameterName []string, stash _stash, length int) *_object {
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self := runtime.newClassObject("Arguments")
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for index, _ := range indexOfParameterName {
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name := strconv.FormatInt(int64(index), 10)
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objectDefineOwnProperty(self, name, _property{Value{}, 0111}, false)
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}
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self.objectClass = _classArguments
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self.value = _argumentsObject{
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indexOfParameterName: indexOfParameterName,
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stash: stash,
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}
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self.prototype = runtime.global.ObjectPrototype
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self.defineProperty("length", toValue_int(length), 0101, false)
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return self
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}
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type _argumentsObject struct {
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indexOfParameterName []string
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// function(abc, def, ghi)
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// indexOfParameterName[0] = "abc"
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// indexOfParameterName[1] = "def"
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// indexOfParameterName[2] = "ghi"
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// ...
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stash _stash
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}
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func (in _argumentsObject) clone(clone *_clone) _argumentsObject {
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indexOfParameterName := make([]string, len(in.indexOfParameterName))
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copy(indexOfParameterName, in.indexOfParameterName)
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return _argumentsObject{
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indexOfParameterName,
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clone.stash(in.stash),
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}
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}
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func (self _argumentsObject) get(name string) (Value, bool) {
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index := stringToArrayIndex(name)
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if index >= 0 && index < int64(len(self.indexOfParameterName)) {
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name := self.indexOfParameterName[index]
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if name == "" {
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return Value{}, false
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}
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return self.stash.getBinding(name, false), true
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}
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return Value{}, false
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}
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func (self _argumentsObject) put(name string, value Value) {
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index := stringToArrayIndex(name)
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name = self.indexOfParameterName[index]
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self.stash.setBinding(name, value, false)
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}
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func (self _argumentsObject) delete(name string) {
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index := stringToArrayIndex(name)
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self.indexOfParameterName[index] = ""
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}
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func argumentsGet(self *_object, name string) Value {
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if value, exists := self.value.(_argumentsObject).get(name); exists {
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return value
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}
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return objectGet(self, name)
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}
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func argumentsGetOwnProperty(self *_object, name string) *_property {
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property := objectGetOwnProperty(self, name)
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if value, exists := self.value.(_argumentsObject).get(name); exists {
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property.value = value
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}
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return property
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}
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func argumentsDefineOwnProperty(self *_object, name string, descriptor _property, throw bool) bool {
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if _, exists := self.value.(_argumentsObject).get(name); exists {
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if !objectDefineOwnProperty(self, name, descriptor, false) {
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return self.runtime.typeErrorResult(throw)
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}
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if value, valid := descriptor.value.(Value); valid {
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self.value.(_argumentsObject).put(name, value)
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}
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return true
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}
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return objectDefineOwnProperty(self, name, descriptor, throw)
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}
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func argumentsDelete(self *_object, name string, throw bool) bool {
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if !objectDelete(self, name, throw) {
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return false
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}
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if _, exists := self.value.(_argumentsObject).get(name); exists {
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self.value.(_argumentsObject).delete(name)
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}
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return true
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}
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