expressions working

Signed-off-by: Casey Lee <cplee@nektos.com>

vendor/github.com/robertkrimen/otto/global.go

@@ -0,0 +1,221 @@
+package otto
+
+import (
+	"strconv"
+	"time"
+)
+
+var (
+	prototypeValueObject   = interface{}(nil)
+	prototypeValueFunction = _nativeFunctionObject{
+		call: func(_ FunctionCall) Value {
+			return Value{}
+		},
+	}
+	prototypeValueString = _stringASCII("")
+	// TODO Make this just false?
+	prototypeValueBoolean = Value{
+		kind:  valueBoolean,
+		value: false,
+	}
+	prototypeValueNumber = Value{
+		kind:  valueNumber,
+		value: 0,
+	}
+	prototypeValueDate = _dateObject{
+		epoch: 0,
+		isNaN: false,
+		time:  time.Unix(0, 0).UTC(),
+		value: Value{
+			kind:  valueNumber,
+			value: 0,
+		},
+	}
+	prototypeValueRegExp = _regExpObject{
+		regularExpression: nil,
+		global:            false,
+		ignoreCase:        false,
+		multiline:         false,
+		source:            "",
+		flags:             "",
+	}
+)
+
+func newContext() *_runtime {
+
+	self := &_runtime{}
+
+	self.globalStash = self.newObjectStash(nil, nil)
+	self.globalObject = self.globalStash.object
+
+	_newContext(self)
+
+	self.eval = self.globalObject.property["eval"].value.(Value).value.(*_object)
+	self.globalObject.prototype = self.global.ObjectPrototype
+
+	return self
+}
+
+func (runtime *_runtime) newBaseObject() *_object {
+	self := newObject(runtime, "")
+	return self
+}
+
+func (runtime *_runtime) newClassObject(class string) *_object {
+	return newObject(runtime, class)
+}
+
+func (runtime *_runtime) newPrimitiveObject(class string, value Value) *_object {
+	self := runtime.newClassObject(class)
+	self.value = value
+	return self
+}
+
+func (self *_object) primitiveValue() Value {
+	switch value := self.value.(type) {
+	case Value:
+		return value
+	case _stringObject:
+		return toValue_string(value.String())
+	}
+	return Value{}
+}
+
+func (self *_object) hasPrimitive() bool {
+	switch self.value.(type) {
+	case Value, _stringObject:
+		return true
+	}
+	return false
+}
+
+func (runtime *_runtime) newObject() *_object {
+	self := runtime.newClassObject("Object")
+	self.prototype = runtime.global.ObjectPrototype
+	return self
+}
+
+func (runtime *_runtime) newArray(length uint32) *_object {
+	self := runtime.newArrayObject(length)
+	self.prototype = runtime.global.ArrayPrototype
+	return self
+}
+
+func (runtime *_runtime) newArrayOf(valueArray []Value) *_object {
+	self := runtime.newArray(uint32(len(valueArray)))
+	for index, value := range valueArray {
+		if value.isEmpty() {
+			continue
+		}
+		self.defineProperty(strconv.FormatInt(int64(index), 10), value, 0111, false)
+	}
+	return self
+}
+
+func (runtime *_runtime) newString(value Value) *_object {
+	self := runtime.newStringObject(value)
+	self.prototype = runtime.global.StringPrototype
+	return self
+}
+
+func (runtime *_runtime) newBoolean(value Value) *_object {
+	self := runtime.newBooleanObject(value)
+	self.prototype = runtime.global.BooleanPrototype
+	return self
+}
+
+func (runtime *_runtime) newNumber(value Value) *_object {
+	self := runtime.newNumberObject(value)
+	self.prototype = runtime.global.NumberPrototype
+	return self
+}
+
+func (runtime *_runtime) newRegExp(patternValue Value, flagsValue Value) *_object {
+
+	pattern := ""
+	flags := ""
+	if object := patternValue._object(); object != nil && object.class == "RegExp" {
+		if flagsValue.IsDefined() {
+			panic(runtime.panicTypeError("Cannot supply flags when constructing one RegExp from another"))
+		}
+		regExp := object.regExpValue()
+		pattern = regExp.source
+		flags = regExp.flags
+	} else {
+		if patternValue.IsDefined() {
+			pattern = patternValue.string()
+		}
+		if flagsValue.IsDefined() {
+			flags = flagsValue.string()
+		}
+	}
+
+	return runtime._newRegExp(pattern, flags)
+}
+
+func (runtime *_runtime) _newRegExp(pattern string, flags string) *_object {
+	self := runtime.newRegExpObject(pattern, flags)
+	self.prototype = runtime.global.RegExpPrototype
+	return self
+}
+
+// TODO Should (probably) be one argument, right? This is redundant
+func (runtime *_runtime) newDate(epoch float64) *_object {
+	self := runtime.newDateObject(epoch)
+	self.prototype = runtime.global.DatePrototype
+	return self
+}
+
+func (runtime *_runtime) newError(name string, message Value, stackFramesToPop int) *_object {
+	var self *_object
+	switch name {
+	case "EvalError":
+		return runtime.newEvalError(message)
+	case "TypeError":
+		return runtime.newTypeError(message)
+	case "RangeError":
+		return runtime.newRangeError(message)
+	case "ReferenceError":
+		return runtime.newReferenceError(message)
+	case "SyntaxError":
+		return runtime.newSyntaxError(message)
+	case "URIError":
+		return runtime.newURIError(message)
+	}
+
+	self = runtime.newErrorObject(name, message, stackFramesToPop)
+	self.prototype = runtime.global.ErrorPrototype
+	if name != "" {
+		self.defineProperty("name", toValue_string(name), 0111, false)
+	}
+	return self
+}
+
+func (runtime *_runtime) newNativeFunction(name, file string, line int, _nativeFunction _nativeFunction) *_object {
+	self := runtime.newNativeFunctionObject(name, file, line, _nativeFunction, 0)
+	self.prototype = runtime.global.FunctionPrototype
+	prototype := runtime.newObject()
+	self.defineProperty("prototype", toValue_object(prototype), 0100, false)
+	prototype.defineProperty("constructor", toValue_object(self), 0100, false)
+	return self
+}
+
+func (runtime *_runtime) newNodeFunction(node *_nodeFunctionLiteral, scopeEnvironment _stash) *_object {
+	// TODO Implement 13.2 fully
+	self := runtime.newNodeFunctionObject(node, scopeEnvironment)
+	self.prototype = runtime.global.FunctionPrototype
+	prototype := runtime.newObject()
+	self.defineProperty("prototype", toValue_object(prototype), 0100, false)
+	prototype.defineProperty("constructor", toValue_object(self), 0101, false)
+	return self
+}
+
+// FIXME Only in one place...
+func (runtime *_runtime) newBoundFunction(target *_object, this Value, argumentList []Value) *_object {
+	self := runtime.newBoundFunctionObject(target, this, argumentList)
+	self.prototype = runtime.global.FunctionPrototype
+	prototype := runtime.newObject()
+	self.defineProperty("prototype", toValue_object(prototype), 0100, false)
+	prototype.defineProperty("constructor", toValue_object(self), 0100, false)
+	return self
+}