1 files changed, 493 insertions, 0 deletions
diff --git a/vendor/github.com/robertkrimen/otto/object_class.go b/vendor/github.com/robertkrimen/otto/object_class.go
new file mode 100644
index 000000000..d18b9cede
--- /dev/null
+++ b/vendor/github.com/robertkrimen/otto/object_class.go
@@ -0,0 +1,493 @@
+package otto
+
+import (
+	"encoding/json"
+)
+
+type _objectClass struct {
+	getOwnProperty    func(*_object, string) *_property
+	getProperty       func(*_object, string) *_property
+	get               func(*_object, string) Value
+	canPut            func(*_object, string) bool
+	put               func(*_object, string, Value, bool)
+	hasProperty       func(*_object, string) bool
+	hasOwnProperty    func(*_object, string) bool
+	defineOwnProperty func(*_object, string, _property, bool) bool
+	delete            func(*_object, string, bool) bool
+	enumerate         func(*_object, bool, func(string) bool)
+	clone             func(*_object, *_object, *_clone) *_object
+	marshalJSON       func(*_object) json.Marshaler
+}
+
+func objectEnumerate(self *_object, all bool, each func(string) bool) {
+	for _, name := range self.propertyOrder {
+		if all || self.property[name].enumerable() {
+			if !each(name) {
+				return
+			}
+		}
+	}
+}
+
+var (
+	_classObject,
+	_classArray,
+	_classString,
+	_classArguments,
+	_classGoStruct,
+	_classGoMap,
+	_classGoArray,
+	_classGoSlice,
+	_ *_objectClass
+)
+
+func init() {
+	_classObject = &_objectClass{
+		objectGetOwnProperty,
+		objectGetProperty,
+		objectGet,
+		objectCanPut,
+		objectPut,
+		objectHasProperty,
+		objectHasOwnProperty,
+		objectDefineOwnProperty,
+		objectDelete,
+		objectEnumerate,
+		objectClone,
+		nil,
+	}
+
+	_classArray = &_objectClass{
+		objectGetOwnProperty,
+		objectGetProperty,
+		objectGet,
+		objectCanPut,
+		objectPut,
+		objectHasProperty,
+		objectHasOwnProperty,
+		arrayDefineOwnProperty,
+		objectDelete,
+		objectEnumerate,
+		objectClone,
+		nil,
+	}
+
+	_classString = &_objectClass{
+		stringGetOwnProperty,
+		objectGetProperty,
+		objectGet,
+		objectCanPut,
+		objectPut,
+		objectHasProperty,
+		objectHasOwnProperty,
+		objectDefineOwnProperty,
+		objectDelete,
+		stringEnumerate,
+		objectClone,
+		nil,
+	}
+
+	_classArguments = &_objectClass{
+		argumentsGetOwnProperty,
+		objectGetProperty,
+		argumentsGet,
+		objectCanPut,
+		objectPut,
+		objectHasProperty,
+		objectHasOwnProperty,
+		argumentsDefineOwnProperty,
+		argumentsDelete,
+		objectEnumerate,
+		objectClone,
+		nil,
+	}
+
+	_classGoStruct = &_objectClass{
+		goStructGetOwnProperty,
+		objectGetProperty,
+		objectGet,
+		goStructCanPut,
+		goStructPut,
+		objectHasProperty,
+		objectHasOwnProperty,
+		objectDefineOwnProperty,
+		objectDelete,
+		goStructEnumerate,
+		objectClone,
+		goStructMarshalJSON,
+	}
+
+	_classGoMap = &_objectClass{
+		goMapGetOwnProperty,
+		objectGetProperty,
+		objectGet,
+		objectCanPut,
+		objectPut,
+		objectHasProperty,
+		objectHasOwnProperty,
+		goMapDefineOwnProperty,
+		goMapDelete,
+		goMapEnumerate,
+		objectClone,
+		nil,
+	}
+
+	_classGoArray = &_objectClass{
+		goArrayGetOwnProperty,
+		objectGetProperty,
+		objectGet,
+		objectCanPut,
+		objectPut,
+		objectHasProperty,
+		objectHasOwnProperty,
+		goArrayDefineOwnProperty,
+		goArrayDelete,
+		goArrayEnumerate,
+		objectClone,
+		nil,
+	}
+
+	_classGoSlice = &_objectClass{
+		goSliceGetOwnProperty,
+		objectGetProperty,
+		objectGet,
+		objectCanPut,
+		objectPut,
+		objectHasProperty,
+		objectHasOwnProperty,
+		goSliceDefineOwnProperty,
+		goSliceDelete,
+		goSliceEnumerate,
+		objectClone,
+		nil,
+	}
+}
+
+// Allons-y
+
+// 8.12.1
+func objectGetOwnProperty(self *_object, name string) *_property {
+	// Return a _copy_ of the property
+	property, exists := self._read(name)
+	if !exists {
+		return nil
+	}
+	return &property
+}
+
+// 8.12.2
+func objectGetProperty(self *_object, name string) *_property {
+	property := self.getOwnProperty(name)
+	if property != nil {
+		return property
+	}
+	if self.prototype != nil {
+		return self.prototype.getProperty(name)
+	}
+	return nil
+}
+
+// 8.12.3
+func objectGet(self *_object, name string) Value {
+	property := self.getProperty(name)
+	if property != nil {
+		return property.get(self)
+	}
+	return Value{}
+}
+
+// 8.12.4
+func objectCanPut(self *_object, name string) bool {
+	canPut, _, _ := _objectCanPut(self, name)
+	return canPut
+}
+
+func _objectCanPut(self *_object, name string) (canPut bool, property *_property, setter *_object) {
+	property = self.getOwnProperty(name)
+	if property != nil {
+		switch propertyValue := property.value.(type) {
+		case Value:
+			canPut = property.writable()
+			return
+		case _propertyGetSet:
+			setter = propertyValue[1]
+			canPut = setter != nil
+			return
+		default:
+			panic(self.runtime.panicTypeError())
+		}
+	}
+
+	if self.prototype == nil {
+		return self.extensible, nil, nil
+	}
+
+	property = self.prototype.getProperty(name)
+	if property == nil {
+		return self.extensible, nil, nil
+	}
+
+	switch propertyValue := property.value.(type) {
+	case Value:
+		if !self.extensible {
+			return false, nil, nil
+		}
+		return property.writable(), nil, nil
+	case _propertyGetSet:
+		setter = propertyValue[1]
+		canPut = setter != nil
+		return
+	default:
+		panic(self.runtime.panicTypeError())
+	}
+}
+
+// 8.12.5
+func objectPut(self *_object, name string, value Value, throw bool) {
+
+	if true {
+		// Shortcut...
+		//
+		// So, right now, every class is using objectCanPut and every class
+		// is using objectPut.
+		//
+		// If that were to no longer be the case, we would have to have
+		// something to detect that here, so that we do not use an
+		// incompatible canPut routine
+		canPut, property, setter := _objectCanPut(self, name)
+		if !canPut {
+			self.runtime.typeErrorResult(throw)
+		} else if setter != nil {
+			setter.call(toValue(self), []Value{value}, false, nativeFrame)
+		} else if property != nil {
+			property.value = value
+			self.defineOwnProperty(name, *property, throw)
+		} else {
+			self.defineProperty(name, value, 0111, throw)
+		}
+		return
+	}
+
+	// The long way...
+	//
+	// Right now, code should never get here, see above
+	if !self.canPut(name) {
+		self.runtime.typeErrorResult(throw)
+		return
+	}
+
+	property := self.getOwnProperty(name)
+	if property == nil {
+		property = self.getProperty(name)
+		if property != nil {
+			if getSet, isAccessor := property.value.(_propertyGetSet); isAccessor {
+				getSet[1].call(toValue(self), []Value{value}, false, nativeFrame)
+				return
+			}
+		}
+		self.defineProperty(name, value, 0111, throw)
+	} else {
+		switch propertyValue := property.value.(type) {
+		case Value:
+			property.value = value
+			self.defineOwnProperty(name, *property, throw)
+		case _propertyGetSet:
+			if propertyValue[1] != nil {
+				propertyValue[1].call(toValue(self), []Value{value}, false, nativeFrame)
+				return
+			}
+			if throw {
+				panic(self.runtime.panicTypeError())
+			}
+		default:
+			panic(self.runtime.panicTypeError())
+		}
+	}
+}
+
+// 8.12.6
+func objectHasProperty(self *_object, name string) bool {
+	return self.getProperty(name) != nil
+}
+
+func objectHasOwnProperty(self *_object, name string) bool {
+	return self.getOwnProperty(name) != nil
+}
+
+// 8.12.9
+func objectDefineOwnProperty(self *_object, name string, descriptor _property, throw bool) bool {
+	property, exists := self._read(name)
+	{
+		if !exists {
+			if !self.extensible {
+				goto Reject
+			}
+			if newGetSet, isAccessor := descriptor.value.(_propertyGetSet); isAccessor {
+				if newGetSet[0] == &_nilGetSetObject {
+					newGetSet[0] = nil
+				}
+				if newGetSet[1] == &_nilGetSetObject {
+					newGetSet[1] = nil
+				}
+				descriptor.value = newGetSet
+			}
+			self._write(name, descriptor.value, descriptor.mode)
+			return true
+		}
+		if descriptor.isEmpty() {
+			return true
+		}
+
+		// TODO Per 8.12.9.6 - We should shortcut here (returning true) if
+		// the current and new (define) properties are the same
+
+		configurable := property.configurable()
+		if !configurable {
+			if descriptor.configurable() {
+				goto Reject
+			}
+			// Test that, if enumerable is set on the property descriptor, then it should
+			// be the same as the existing property
+			if descriptor.enumerateSet() && descriptor.enumerable() != property.enumerable() {
+				goto Reject
+			}
+		}
+		value, isDataDescriptor := property.value.(Value)
+		getSet, _ := property.value.(_propertyGetSet)
+		if descriptor.isGenericDescriptor() {
+			// GenericDescriptor
+		} else if isDataDescriptor != descriptor.isDataDescriptor() {
+			// DataDescriptor <=> AccessorDescriptor
+			if !configurable {
+				goto Reject
+			}
+		} else if isDataDescriptor && descriptor.isDataDescriptor() {
+			// DataDescriptor <=> DataDescriptor
+			if !configurable {
+				if !property.writable() && descriptor.writable() {
+					goto Reject
+				}
+				if !property.writable() {
+					if descriptor.value != nil && !sameValue(value, descriptor.value.(Value)) {
+						goto Reject
+					}
+				}
+			}
+		} else {
+			// AccessorDescriptor <=> AccessorDescriptor
+			newGetSet, _ := descriptor.value.(_propertyGetSet)
+			presentGet, presentSet := true, true
+			if newGetSet[0] == &_nilGetSetObject {
+				// Present, but nil
+				newGetSet[0] = nil
+			} else if newGetSet[0] == nil {
+				// Missing, not even nil
+				newGetSet[0] = getSet[0]
+				presentGet = false
+			}
+			if newGetSet[1] == &_nilGetSetObject {
+				// Present, but nil
+				newGetSet[1] = nil
+			} else if newGetSet[1] == nil {
+				// Missing, not even nil
+				newGetSet[1] = getSet[1]
+				presentSet = false
+			}
+			if !configurable {
+				if (presentGet && (getSet[0] != newGetSet[0])) || (presentSet && (getSet[1] != newGetSet[1])) {
+					goto Reject
+				}
+			}
+			descriptor.value = newGetSet
+		}
+		{
+			// This section will preserve attributes of
+			// the original property, if necessary
+			value1 := descriptor.value
+			if value1 == nil {
+				value1 = property.value
+			} else if newGetSet, isAccessor := descriptor.value.(_propertyGetSet); isAccessor {
+				if newGetSet[0] == &_nilGetSetObject {
+					newGetSet[0] = nil
+				}
+				if newGetSet[1] == &_nilGetSetObject {
+					newGetSet[1] = nil
+				}
+				value1 = newGetSet
+			}
+			mode1 := descriptor.mode
+			if mode1&0222 != 0 {
+				// TODO Factor this out into somewhere testable
+				// (Maybe put into switch ...)
+				mode0 := property.mode
+				if mode1&0200 != 0 {
+					if descriptor.isDataDescriptor() {
+						mode1 &= ^0200 // Turn off "writable" missing
+						mode1 |= (mode0 & 0100)
+					}
+				}
+				if mode1&020 != 0 {
+					mode1 |= (mode0 & 010)
+				}
+				if mode1&02 != 0 {
+					mode1 |= (mode0 & 01)
+				}
+				mode1 &= 0311 // 0311 to preserve the non-setting on "writable"
+			}
+			self._write(name, value1, mode1)
+		}
+		return true
+	}
+Reject:
+	if throw {
+		panic(self.runtime.panicTypeError())
+	}
+	return false
+}
+
+func objectDelete(self *_object, name string, throw bool) bool {
+	property_ := self.getOwnProperty(name)
+	if property_ == nil {
+		return true
+	}
+	if property_.configurable() {
+		self._delete(name)
+		return true
+	}
+	return self.runtime.typeErrorResult(throw)
+}
+
+func objectClone(in *_object, out *_object, clone *_clone) *_object {
+	*out = *in
+
+	out.runtime = clone.runtime
+	if out.prototype != nil {
+		out.prototype = clone.object(in.prototype)
+	}
+	out.property = make(map[string]_property, len(in.property))
+	out.propertyOrder = make([]string, len(in.propertyOrder))
+	copy(out.propertyOrder, in.propertyOrder)
+	for index, property := range in.property {
+		out.property[index] = clone.property(property)
+	}
+
+	switch value := in.value.(type) {
+	case _nativeFunctionObject:
+		out.value = value
+	case _bindFunctionObject:
+		out.value = _bindFunctionObject{
+			target:       clone.object(value.target),
+			this:         clone.value(value.this),
+			argumentList: clone.valueArray(value.argumentList),
+		}
+	case _nodeFunctionObject:
+		out.value = _nodeFunctionObject{
+			node:  value.node,
+			stash: clone.stash(value.stash),
+		}
+	case _argumentsObject:
+		out.value = value.clone(clone)
+	}
+
+	return out
+}