1 files changed, 331 insertions, 0 deletions
diff --git a/Godeps/_workspace/src/github.com/robertkrimen/otto/runtime.go b/Godeps/_workspace/src/github.com/robertkrimen/otto/runtime.go
new file mode 100644
index 000000000..1ac1b435e
--- /dev/null
+++ b/Godeps/_workspace/src/github.com/robertkrimen/otto/runtime.go
@@ -0,0 +1,331 @@
+package otto
+
+import (
+	"errors"
+	"reflect"
+	"sync"
+
+	"github.com/robertkrimen/otto/ast"
+	"github.com/robertkrimen/otto/parser"
+)
+
+type _global struct {
+	Object         *_object // Object( ... ), new Object( ... ) - 1 (length)
+	Function       *_object // Function( ... ), new Function( ... ) - 1
+	Array          *_object // Array( ... ), new Array( ... ) - 1
+	String         *_object // String( ... ), new String( ... ) - 1
+	Boolean        *_object // Boolean( ... ), new Boolean( ... ) - 1
+	Number         *_object // Number( ... ), new Number( ... ) - 1
+	Math           *_object
+	Date           *_object // Date( ... ), new Date( ... ) - 7
+	RegExp         *_object // RegExp( ... ), new RegExp( ... ) - 2
+	Error          *_object // Error( ... ), new Error( ... ) - 1
+	EvalError      *_object
+	TypeError      *_object
+	RangeError     *_object
+	ReferenceError *_object
+	SyntaxError    *_object
+	URIError       *_object
+	JSON           *_object
+
+	ObjectPrototype         *_object // Object.prototype
+	FunctionPrototype       *_object // Function.prototype
+	ArrayPrototype          *_object // Array.prototype
+	StringPrototype         *_object // String.prototype
+	BooleanPrototype        *_object // Boolean.prototype
+	NumberPrototype         *_object // Number.prototype
+	DatePrototype           *_object // Date.prototype
+	RegExpPrototype         *_object // RegExp.prototype
+	ErrorPrototype          *_object // Error.prototype
+	EvalErrorPrototype      *_object
+	TypeErrorPrototype      *_object
+	RangeErrorPrototype     *_object
+	ReferenceErrorPrototype *_object
+	SyntaxErrorPrototype    *_object
+	URIErrorPrototype       *_object
+}
+
+type _runtime struct {
+	global       _global
+	globalObject *_object
+	globalStash  *_objectStash
+	scope        *_scope
+	otto         *Otto
+	eval         *_object // The builtin eval, for determine indirect versus direct invocation
+
+	labels []string // FIXME
+	lck    sync.Mutex
+}
+
+func (self *_runtime) enterScope(scope *_scope) {
+	scope.outer = self.scope
+	self.scope = scope
+}
+
+func (self *_runtime) leaveScope() {
+	self.scope = self.scope.outer
+}
+
+// FIXME This is used in two places (cloning)
+func (self *_runtime) enterGlobalScope() {
+	self.enterScope(newScope(self.globalStash, self.globalStash, self.globalObject))
+}
+
+func (self *_runtime) enterFunctionScope(outer _stash, this Value) *_fnStash {
+	if outer == nil {
+		outer = self.globalStash
+	}
+	stash := self.newFunctionStash(outer)
+	var thisObject *_object
+	switch this.kind {
+	case valueUndefined, valueNull:
+		thisObject = self.globalObject
+	default:
+		thisObject = self.toObject(this)
+	}
+	self.enterScope(newScope(stash, stash, thisObject))
+	return stash
+}
+
+func (self *_runtime) putValue(reference _reference, value Value) {
+	name := reference.putValue(value)
+	if name != "" {
+		// Why? -- If reference.base == nil
+		// strict = false
+		self.globalObject.defineProperty(name, value, 0111, false)
+	}
+}
+
+func (self *_runtime) tryCatchEvaluate(inner func() Value) (tryValue Value, exception bool) {
+	// resultValue = The value of the block (e.g. the last statement)
+	// throw = Something was thrown
+	// throwValue = The value of what was thrown
+	// other = Something that changes flow (return, break, continue) that is not a throw
+	// Otherwise, some sort of unknown panic happened, we'll just propagate it
+	defer func() {
+		if caught := recover(); caught != nil {
+			if exception, ok := caught.(*_exception); ok {
+				caught = exception.eject()
+			}
+			switch caught := caught.(type) {
+			case _error:
+				exception = true
+				tryValue = toValue_object(self.newError(caught.name, caught.messageValue()))
+			case Value:
+				exception = true
+				tryValue = caught
+			default:
+				panic(caught)
+			}
+		}
+	}()
+
+	tryValue = inner()
+	return
+}
+
+// toObject
+
+func (self *_runtime) toObject(value Value) *_object {
+	switch value.kind {
+	case valueEmpty, valueUndefined, valueNull:
+		panic(self.panicTypeError())
+	case valueBoolean:
+		return self.newBoolean(value)
+	case valueString:
+		return self.newString(value)
+	case valueNumber:
+		return self.newNumber(value)
+	case valueObject:
+		return value._object()
+	}
+	panic(self.panicTypeError())
+}
+
+func (self *_runtime) objectCoerce(value Value) (*_object, error) {
+	switch value.kind {
+	case valueUndefined:
+		return nil, errors.New("undefined")
+	case valueNull:
+		return nil, errors.New("null")
+	case valueBoolean:
+		return self.newBoolean(value), nil
+	case valueString:
+		return self.newString(value), nil
+	case valueNumber:
+		return self.newNumber(value), nil
+	case valueObject:
+		return value._object(), nil
+	}
+	panic(self.panicTypeError())
+}
+
+func checkObjectCoercible(rt *_runtime, value Value) {
+	isObject, mustCoerce := testObjectCoercible(value)
+	if !isObject && !mustCoerce {
+		panic(rt.panicTypeError())
+	}
+}
+
+// testObjectCoercible
+
+func testObjectCoercible(value Value) (isObject bool, mustCoerce bool) {
+	switch value.kind {
+	case valueReference, valueEmpty, valueNull, valueUndefined:
+		return false, false
+	case valueNumber, valueString, valueBoolean:
+		isObject = false
+		mustCoerce = true
+	case valueObject:
+		isObject = true
+		mustCoerce = false
+	}
+	return
+}
+
+func (self *_runtime) safeToValue(value interface{}) (Value, error) {
+	result := Value{}
+	err := catchPanic(func() {
+		result = self.toValue(value)
+	})
+	return result, err
+}
+
+func (self *_runtime) toValue(value interface{}) Value {
+	switch value := value.(type) {
+	case Value:
+		return value
+	case func(FunctionCall) Value:
+		return toValue_object(self.newNativeFunction("", value))
+	case _nativeFunction:
+		return toValue_object(self.newNativeFunction("", value))
+	case Object, *Object, _object, *_object:
+		// Nothing happens.
+		// FIXME We should really figure out what can come here.
+		// This catch-all is ugly.
+	default:
+		{
+			value := reflect.ValueOf(value)
+			switch value.Kind() {
+			case reflect.Ptr:
+				switch reflect.Indirect(value).Kind() {
+				case reflect.Struct:
+					return toValue_object(self.newGoStructObject(value))
+				case reflect.Array:
+					return toValue_object(self.newGoArray(value))
+				}
+			case reflect.Func:
+				// TODO Maybe cache this?
+				return toValue_object(self.newNativeFunction("", func(call FunctionCall) Value {
+					in := make([]reflect.Value, len(call.ArgumentList))
+					for i, value := range call.ArgumentList {
+						in[i] = reflect.ValueOf(value.export())
+					}
+
+					out := value.Call(in)
+					if len(out) == 1 {
+						return self.toValue(out[0].Interface())
+					} else if len(out) == 0 {
+						return Value{}
+					}
+
+					panic(call.runtime.panicTypeError())
+				}))
+			case reflect.Struct:
+				return toValue_object(self.newGoStructObject(value))
+			case reflect.Map:
+				return toValue_object(self.newGoMapObject(value))
+			case reflect.Slice:
+				return toValue_object(self.newGoSlice(value))
+			case reflect.Array:
+				return toValue_object(self.newGoArray(value))
+			}
+		}
+	}
+	return toValue(value)
+}
+
+func (runtime *_runtime) newGoSlice(value reflect.Value) *_object {
+	self := runtime.newGoSliceObject(value)
+	self.prototype = runtime.global.ArrayPrototype
+	return self
+}
+
+func (runtime *_runtime) newGoArray(value reflect.Value) *_object {
+	self := runtime.newGoArrayObject(value)
+	self.prototype = runtime.global.ArrayPrototype
+	return self
+}
+
+func (runtime *_runtime) parse(filename string, src interface{}) (*ast.Program, error) {
+	return parser.ParseFile(nil, filename, src, 0)
+}
+
+func (runtime *_runtime) cmpl_parse(filename string, src interface{}) (*_nodeProgram, error) {
+	program, err := parser.ParseFile(nil, filename, src, 0)
+	if err != nil {
+		return nil, err
+	}
+	return cmpl_parse(program), nil
+}
+
+func (self *_runtime) parseSource(src interface{}) (*_nodeProgram, *ast.Program, error) {
+	switch src := src.(type) {
+	case *ast.Program:
+		return nil, src, nil
+	case *Script:
+		return src.program, nil, nil
+	}
+	program, err := self.parse("", src)
+	return nil, program, err
+}
+
+func (self *_runtime) cmpl_run(src interface{}) (Value, error) {
+	result := Value{}
+	cmpl_program, program, err := self.parseSource(src)
+	if err != nil {
+		return result, err
+	}
+	if cmpl_program == nil {
+		cmpl_program = cmpl_parse(program)
+	}
+	err = catchPanic(func() {
+		result = self.cmpl_evaluate_nodeProgram(cmpl_program, false)
+	})
+	switch result.kind {
+	case valueEmpty:
+		result = Value{}
+	case valueReference:
+		result = result.resolve()
+	}
+	return result, err
+}
+
+func (self *_runtime) parseThrow(err error) {
+	if err == nil {
+		return
+	}
+	switch err := err.(type) {
+	case parser.ErrorList:
+		{
+			err := err[0]
+			if err.Message == "Invalid left-hand side in assignment" {
+				panic(self.panicReferenceError(err.Message))
+			}
+			panic(self.panicSyntaxError(err.Message))
+		}
+	}
+	panic(self.panicSyntaxError(err.Error()))
+}
+
+func (self *_runtime) parseOrThrow(source string) *ast.Program {
+	program, err := self.parse("", source)
+	self.parseThrow(err) // Will panic/throw appropriately
+	return program
+}
+
+func (self *_runtime) cmpl_parseOrThrow(source string) *_nodeProgram {
+	program, err := self.cmpl_parse("", source)
+	self.parseThrow(err) // Will panic/throw appropriately
+	return program
+}