Convert more builtin functions

Change-Id: I2dc8797e2240fcfc4176cb08b982e3e98b879646
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>

14 files changed, 206 insertions, 237 deletions

diff --git a/src/qml/jsruntime/qv4errorobject.cpp b/src/qml/jsruntime/qv4errorobject.cpp
index 597ded6ae1..f290bc5136 100644
--- a/src/qml/jsruntime/qv4errorobject.cpp
+++ b/src/qml/jsruntime/qv4errorobject.cpp
@@ -153,12 +153,11 @@ const char *ErrorObject::className(Heap::ErrorObject::ErrorType t)
     Q_UNREACHABLE();
 }
 
-ReturnedValue ErrorObject::method_get_stack(CallContext *ctx)
+void ErrorObject::method_get_stack(const BuiltinFunction *, Scope &scope, CallData *callData)
 {
-    Scope scope(ctx);
-    Scoped<ErrorObject> This(scope, ctx->thisObject());
+    Scoped<ErrorObject> This(scope, callData->thisObject);
     if (!This)
-        return ctx->engine()->throwTypeError();
+        THROW_TYPE_ERROR();
     if (!This->d()->stack) {
         QString trace;
         for (int i = 0; i < This->d()->stackTrace->count(); ++i) {
@@ -169,9 +168,9 @@ ReturnedValue ErrorObject::method_get_stack(CallContext *ctx)
             if (frame.line >= 0)
                 trace += QLatin1Char(':') + QString::number(frame.line);
         }
-        This->d()->stack = ctx->d()->engine->newString(trace);
+        This->d()->stack = scope.engine->newString(trace);
     }
-    return This->d()->stack->asReturnedValue();
+    scope.result = This->d()->stack;
 }
 
 void ErrorObject::markObjects(Heap::Base *that, ExecutionEngine *e)
@@ -335,22 +334,20 @@ void ErrorPrototype::init(ExecutionEngine *engine, Object *ctor, Object *obj, He
         obj->defineDefaultProperty(engine->id_toString(), method_toString, 0);
 }
 
-ReturnedValue ErrorPrototype::method_toString(CallContext *ctx)
+void ErrorPrototype::method_toString(const BuiltinFunction *, Scope &scope, CallData *callData)
 {
-    Scope scope(ctx);
-
-    Object *o = ctx->thisObject().as<Object>();
+    Object *o = callData->thisObject.as<Object>();
     if (!o)
-        return ctx->engine()->throwTypeError();
+        THROW_TYPE_ERROR();
 
-    ScopedValue name(scope, o->get(ctx->d()->engine->id_name()));
+    ScopedValue name(scope, o->get(scope.engine->id_name()));
     QString qname;
     if (name->isUndefined())
         qname = QStringLiteral("Error");
     else
         qname = name->toQString();
 
-    ScopedString s(scope, ctx->d()->engine->newString(QStringLiteral("message")));
+    ScopedString s(scope, scope.engine->newString(QStringLiteral("message")));
     ScopedValue message(scope, o->get(s));
     QString qmessage;
     if (!message->isUndefined())
@@ -365,5 +362,5 @@ ReturnedValue ErrorPrototype::method_toString(CallContext *ctx)
         str = qname + QLatin1String(": ") + qmessage;
     }
 
-    return ctx->d()->engine->newString(str)->asReturnedValue();
+    scope.result = scope.engine->newString(str)->asReturnedValue();
 }
diff --git a/src/qml/jsruntime/qv4errorobject_p.h b/src/qml/jsruntime/qv4errorobject_p.h
index 2b3ab25e2d..9ba9f05234 100644
--- a/src/qml/jsruntime/qv4errorobject_p.h
+++ b/src/qml/jsruntime/qv4errorobject_p.h
@@ -172,7 +172,7 @@ struct ErrorObject: Object {
 
     static const char *className(Heap::ErrorObject::ErrorType t);
 
-    static ReturnedValue method_get_stack(CallContext *ctx);
+    static void method_get_stack(const BuiltinFunction *, Scope &scope, CallData *callData);
     static void markObjects(Heap::Base *that, ExecutionEngine *e);
 };
 
@@ -282,7 +282,7 @@ struct ErrorPrototype : ErrorObject
     void init(ExecutionEngine *engine, Object *ctor) { init(engine, ctor, this, Heap::ErrorObject::Error); }
 
     static void init(ExecutionEngine *engine, Object *ctor, Object *obj, Heap::ErrorObject::ErrorType t);
-    static ReturnedValue method_toString(CallContext *ctx);
+    static void method_toString(const BuiltinFunction *, Scope &scope, CallData *callData);
 };
 
 struct EvalErrorPrototype : ErrorObject
diff --git a/src/qml/jsruntime/qv4functionobject.cpp b/src/qml/jsruntime/qv4functionobject.cpp
index 1458c77d88..b2d89220ea 100644
--- a/src/qml/jsruntime/qv4functionobject.cpp
+++ b/src/qml/jsruntime/qv4functionobject.cpp
@@ -270,23 +270,22 @@ void FunctionPrototype::init(ExecutionEngine *engine, Object *ctor)
 
 }
 
-ReturnedValue FunctionPrototype::method_toString(CallContext *ctx)
+void FunctionPrototype::method_toString(const BuiltinFunction *, Scope &scope, CallData *callData)
 {
-    FunctionObject *fun = ctx->thisObject().as<FunctionObject>();
+    FunctionObject *fun = callData->thisObject.as<FunctionObject>();
     if (!fun)
-        return ctx->engine()->throwTypeError();
+        THROW_TYPE_ERROR();
 
-    return ctx->d()->engine->newString(QStringLiteral("function() { [code] }"))->asReturnedValue();
+    scope.result = scope.engine->newString(QStringLiteral("function() { [code] }"));
 }
 
-ReturnedValue FunctionPrototype::method_apply(CallContext *ctx)
+void FunctionPrototype::method_apply(const BuiltinFunction *, Scope &scope, CallData *callData)
 {
-    FunctionObject *o = ctx->thisObject().as<FunctionObject>();
+    FunctionObject *o = callData->thisObject.as<FunctionObject>();
     if (!o)
-        return ctx->engine()->throwTypeError();
+        THROW_TYPE_ERROR();
 
-    Scope scope(ctx);
-    ScopedValue arg(scope, ctx->argument(1));
+    ScopedValue arg(scope, callData->argument(1));
 
     ScopedObject arr(scope, arg);
 
@@ -294,75 +293,71 @@ ReturnedValue FunctionPrototype::method_apply(CallContext *ctx)
     if (!arr) {
         len = 0;
         if (!arg->isNullOrUndefined())
-            return ctx->engine()->throwTypeError();
+            THROW_TYPE_ERROR();
     } else {
         len = arr->getLength();
     }
 
-    ScopedCallData callData(scope, len);
+    ScopedCallData cData(scope, len);
 
     if (len) {
         if (ArgumentsObject::isNonStrictArgumentsObject(arr) && !arr->cast<ArgumentsObject>()->fullyCreated()) {
             QV4::ArgumentsObject *a = arr->cast<ArgumentsObject>();
             int l = qMin(len, (uint)a->d()->context->callData->argc);
-            memcpy(callData->args, a->d()->context->callData->args, l*sizeof(Value));
+            memcpy(cData->args, a->d()->context->callData->args, l*sizeof(Value));
             for (quint32 i = l; i < len; ++i)
-                callData->args[i] = Primitive::undefinedValue();
+                cData->args[i] = Primitive::undefinedValue();
         } else if (arr->arrayType() == Heap::ArrayData::Simple && !arr->protoHasArray()) {
             auto sad = static_cast<Heap::SimpleArrayData *>(arr->arrayData());
             uint alen = sad ? sad->len : 0;
             if (alen > len)
                 alen = len;
             for (uint i = 0; i < alen; ++i)
-                callData->args[i] = sad->data(i);
+                cData->args[i] = sad->data(i);
             for (quint32 i = alen; i < len; ++i)
-                callData->args[i] = Primitive::undefinedValue();
+                cData->args[i] = Primitive::undefinedValue();
         } else {
             for (quint32 i = 0; i < len; ++i)
-                callData->args[i] = arr->getIndexed(i);
+                cData->args[i] = arr->getIndexed(i);
         }
     }
 
-    callData->thisObject = ctx->argument(0);
-    o->call(scope, callData);
-    return scope.result.asReturnedValue();
+    cData->thisObject = callData->argument(0);
+    o->call(scope, cData);
 }
 
-ReturnedValue FunctionPrototype::method_call(CallContext *ctx)
+void FunctionPrototype::method_call(const BuiltinFunction *, Scope &scope, CallData *callData)
 {
-    FunctionObject *o = ctx->thisObject().as<FunctionObject>();
+    FunctionObject *o = callData->thisObject.as<FunctionObject>();
     if (!o)
-        return ctx->engine()->throwTypeError();
+        THROW_TYPE_ERROR();
 
-    Scope scope(ctx);
-    ScopedCallData callData(scope, ctx->argc() ? ctx->argc() - 1 : 0);
-    if (ctx->argc()) {
-        for (int i = 1; i < ctx->argc(); ++i)
-            callData->args[i - 1] = ctx->args()[i];
+    ScopedCallData cData(scope, callData->argc ? callData->argc - 1 : 0);
+    if (callData->argc) {
+        for (int i = 1; i < callData->argc; ++i)
+            cData->args[i - 1] = callData->args[i];
     }
-    callData->thisObject = ctx->argument(0);
+    cData->thisObject = callData->argument(0);
 
-    o->call(scope, callData);
-    return scope.result.asReturnedValue();
+    o->call(scope, cData);
 }
 
-ReturnedValue FunctionPrototype::method_bind(CallContext *ctx)
+void FunctionPrototype::method_bind(const BuiltinFunction *, Scope &scope, CallData *callData)
 {
-    FunctionObject *target = ctx->thisObject().as<FunctionObject>();
+    FunctionObject *target = callData->thisObject.as<FunctionObject>();
     if (!target)
-        return ctx->engine()->throwTypeError();
+        THROW_TYPE_ERROR();
 
-    Scope scope(ctx);
-    ScopedValue boundThis(scope, ctx->argument(0));
+    ScopedValue boundThis(scope, callData->argument(0));
     Scoped<MemberData> boundArgs(scope, (Heap::MemberData *)0);
-    if (ctx->argc() > 1) {
-        boundArgs = MemberData::allocate(scope.engine, ctx->argc() - 1);
-        boundArgs->d()->size = ctx->argc() - 1;
-        memcpy(boundArgs->data(), ctx->args() + 1, (ctx->argc() - 1)*sizeof(Value));
+    if (callData->argc > 1) {
+        boundArgs = MemberData::allocate(scope.engine, callData->argc - 1);
+        boundArgs->d()->size = callData->argc - 1;
+        memcpy(boundArgs->data(), callData->args + 1, (callData->argc - 1)*sizeof(Value));
     }
 
     ExecutionContext *global = scope.engine->rootContext();
-    return BoundFunction::create(global, target, boundThis, boundArgs)->asReturnedValue();
+    scope.result = BoundFunction::create(global, target, boundThis, boundArgs);
 }
 
 DEFINE_OBJECT_VTABLE(ScriptFunction);
diff --git a/src/qml/jsruntime/qv4functionobject_p.h b/src/qml/jsruntime/qv4functionobject_p.h
index 31b05666a7..45d7485f1b 100644
--- a/src/qml/jsruntime/qv4functionobject_p.h
+++ b/src/qml/jsruntime/qv4functionobject_p.h
@@ -184,10 +184,10 @@ struct FunctionPrototype: FunctionObject
 
     void init(ExecutionEngine *engine, Object *ctor);
 
-    static ReturnedValue method_toString(CallContext *ctx);
-    static ReturnedValue method_apply(CallContext *ctx);
-    static ReturnedValue method_call(CallContext *ctx);
-    static ReturnedValue method_bind(CallContext *ctx);
+    static void method_toString(const BuiltinFunction *, Scope &scope, CallData *callData);
+    static void method_apply(const BuiltinFunction *, Scope &scope, CallData *callData);
+    static void method_call(const BuiltinFunction *, Scope &scope, CallData *callData);
+    static void method_bind(const BuiltinFunction *, Scope &scope, CallData *callData);
 };
 
 struct Q_QML_EXPORT OldBuiltinFunction : FunctionObject {
diff --git a/src/qml/jsruntime/qv4global_p.h b/src/qml/jsruntime/qv4global_p.h
index 1dbc538be2..66861bf697 100644
--- a/src/qml/jsruntime/qv4global_p.h
+++ b/src/qml/jsruntime/qv4global_p.h
@@ -208,6 +208,7 @@ struct StringObject;
 struct ArrayObject;
 struct DateObject;
 struct FunctionObject;
+struct BuiltinFunction;
 struct ErrorObject;
 struct ArgumentsObject;
 struct Managed;
diff --git a/src/qml/jsruntime/qv4globalobject.cpp b/src/qml/jsruntime/qv4globalobject.cpp
index af92ce1ad8..1bc91f832b 100644
--- a/src/qml/jsruntime/qv4globalobject.cpp
+++ b/src/qml/jsruntime/qv4globalobject.cpp
@@ -423,18 +423,15 @@ static inline int toInt(const QChar &qc, int R)
 }
 
 // parseInt [15.1.2.2]
-ReturnedValue GlobalFunctions::method_parseInt(CallContext *ctx)
+void GlobalFunctions::method_parseInt(const BuiltinFunction *, Scope &scope, CallData *callData)
 {
-    Scope scope(ctx);
-    ScopedValue inputString(scope, ctx->argument(0));
-    ScopedValue radix(scope, ctx->argument(1));
+    ScopedValue inputString(scope, callData->argument(0));
+    ScopedValue radix(scope, callData->argument(1));
     int R = radix->isUndefined() ? 0 : radix->toInt32();
 
     // [15.1.2.2] step by step:
     QString trimmed = inputString->toQString().trimmed(); // 1 + 2
-
-    if (ctx->d()->engine->hasException)
-        return Encode::undefined();
+    CHECK_EXCEPTION();
 
     const QChar *pos = trimmed.constData();
     const QChar *end = pos + trimmed.length();
@@ -449,7 +446,7 @@ ReturnedValue GlobalFunctions::method_parseInt(CallContext *ctx)
     bool stripPrefix = true; // 7
     if (R) { // 8
         if (R < 2 || R > 36)
-            return Encode(std::numeric_limits<double>::quiet_NaN()); // 8a
+            RETURN_RESULT(Encode(std::numeric_limits<double>::quiet_NaN())); // 8a
         if (R != 16)
             stripPrefix = false; // 8b
     } else { // 9
@@ -466,13 +463,13 @@ ReturnedValue GlobalFunctions::method_parseInt(CallContext *ctx)
     // 11: Z is progressively built below
     // 13: this is handled by the toInt function
     if (pos == end) // 12
-        return Encode(std::numeric_limits<double>::quiet_NaN());
+        RETURN_RESULT(Encode(std::numeric_limits<double>::quiet_NaN()));
     bool overflow = false;
     qint64 v_overflow = 0;
     unsigned overflow_digit_count = 0;
     int d = toInt(*pos++, R);
     if (d == -1)
-        return Encode(std::numeric_limits<double>::quiet_NaN());
+        RETURN_RESULT(Encode(std::numeric_limits<double>::quiet_NaN()));
     qint64 v = d;
     while (pos != end) {
         d = toInt(*pos++, R);
@@ -499,155 +496,148 @@ ReturnedValue GlobalFunctions::method_parseInt(CallContext *ctx)
     if (overflow) {
         double result = (double) v_overflow * pow(static_cast<double>(R), static_cast<double>(overflow_digit_count));
         result += v;
-        return Encode(sign * result);
+        RETURN_RESULT(Encode(sign * result));
     } else {
-        return Encode(sign * (double) v); // 15
+        RETURN_RESULT(Encode(sign * (double) v)); // 15
     }
 }
 
 // parseFloat [15.1.2.3]
-ReturnedValue GlobalFunctions::method_parseFloat(CallContext *ctx)
+void GlobalFunctions::method_parseFloat(const BuiltinFunction *, Scope &scope, CallData *callData)
 {
-    Scope scope(ctx);
-
     // [15.1.2.3] step by step:
-    ScopedString inputString(scope, ctx->argument(0), ScopedString::Convert);
-    if (scope.engine->hasException)
-        return Encode::undefined();
+    ScopedString inputString(scope, callData->argument(0), ScopedString::Convert);
+    CHECK_EXCEPTION();
 
     QString trimmed = inputString->toQString().trimmed(); // 2
 
     // 4:
     if (trimmed.startsWith(QLatin1String("Infinity"))
             || trimmed.startsWith(QLatin1String("+Infinity")))
-        return Encode(Q_INFINITY);
+        RETURN_RESULT(Encode(Q_INFINITY));
     if (trimmed.startsWith(QLatin1String("-Infinity")))
-        return Encode(-Q_INFINITY);
+        RETURN_RESULT(Encode(-Q_INFINITY));
     QByteArray ba = trimmed.toLatin1();
     bool ok;
     const char *begin = ba.constData();
     const char *end = 0;
     double d = qstrtod(begin, &end, &ok);
     if (end - begin == 0)
-        return Encode(std::numeric_limits<double>::quiet_NaN()); // 3
+        RETURN_RESULT(Encode(std::numeric_limits<double>::quiet_NaN())); // 3
     else
-        return Encode(d);
+        RETURN_RESULT(Encode(d));
 }
 
 /// isNaN [15.1.2.4]
-ReturnedValue GlobalFunctions::method_isNaN(CallContext *ctx)
+void GlobalFunctions::method_isNaN(const BuiltinFunction *, Scope &scope, CallData *callData)
 {
-    if (!ctx->argc())
+    if (!callData->argc)
         // undefined gets converted to NaN
-        return Encode(true);
+        RETURN_RESULT(Encode(true));
 
-    if (ctx->args()[0].integerCompatible())
-        return Encode(false);
+    if (callData->args[0].integerCompatible())
+        RETURN_RESULT(Encode(false));
 
-    double d = ctx->args()[0].toNumber();
-    return Encode((bool)std::isnan(d));
+    double d = callData->args[0].toNumber();
+    RETURN_RESULT(Encode((bool)std::isnan(d)));
 }
 
 /// isFinite [15.1.2.5]
-ReturnedValue GlobalFunctions::method_isFinite(CallContext *ctx)
+void GlobalFunctions::method_isFinite(const BuiltinFunction *, Scope &scope, CallData *callData)
 {
-    if (!ctx->argc())
+    if (!callData->argc)
         // undefined gets converted to NaN
-        return Encode(false);
+        RETURN_RESULT(Encode(false));
 
-    if (ctx->args()[0].integerCompatible())
-        return Encode(true);
+    if (callData->args[0].integerCompatible())
+        RETURN_RESULT(Encode(true));
 
-    double d = ctx->args()[0].toNumber();
-    return Encode((bool)std::isfinite(d));
+    double d = callData->args[0].toNumber();
+    RETURN_RESULT(Encode((bool)std::isfinite(d)));
 }
 
 /// decodeURI [15.1.3.1]
-ReturnedValue GlobalFunctions::method_decodeURI(CallContext *context)
+void GlobalFunctions::method_decodeURI(const BuiltinFunction *, Scope &scope, CallData *callData)
 {
-    if (context->argc() == 0)
-        return Encode::undefined();
+    if (callData->argc == 0)
+        RETURN_UNDEFINED();
 
-    QString uriString = context->args()[0].toQString();
+    QString uriString = callData->args[0].toQString();
     bool ok;
     QString out = decode(uriString, DecodeNonReserved, &ok);
     if (!ok) {
-        Scope scope(context);
-        ScopedString s(scope, context->d()->engine->newString(QStringLiteral("malformed URI sequence")));
-        return context->engine()->throwURIError(s);
+        ScopedString s(scope, scope.engine->newString(QStringLiteral("malformed URI sequence")));
+        RETURN_RESULT(scope.engine->throwURIError(s));
     }
 
-    return context->d()->engine->newString(out)->asReturnedValue();
+    RETURN_RESULT(scope.engine->newString(out));
 }
 
 /// decodeURIComponent [15.1.3.2]
-ReturnedValue GlobalFunctions::method_decodeURIComponent(CallContext *context)
+void GlobalFunctions::method_decodeURIComponent(const BuiltinFunction *, Scope &scope, CallData *callData)
 {
-    if (context->argc() == 0)
-        return Encode::undefined();
+    if (callData->argc == 0)
+        RETURN_UNDEFINED();
 
-    QString uriString = context->args()[0].toQString();
+    QString uriString = callData->args[0].toQString();
     bool ok;
     QString out = decode(uriString, DecodeAll, &ok);
     if (!ok) {
-        Scope scope(context);
-        ScopedString s(scope, context->d()->engine->newString(QStringLiteral("malformed URI sequence")));
-        return context->engine()->throwURIError(s);
+        ScopedString s(scope, scope.engine->newString(QStringLiteral("malformed URI sequence")));
+        RETURN_RESULT(scope.engine->throwURIError(s));
     }
 
-    return context->d()->engine->newString(out)->asReturnedValue();
+    RETURN_RESULT(scope.engine->newString(out));
 }
 
 /// encodeURI [15.1.3.3]
-ReturnedValue GlobalFunctions::method_encodeURI(CallContext *context)
+void GlobalFunctions::method_encodeURI(const BuiltinFunction *, Scope &scope, CallData *callData)
 {
-    if (context->argc() == 0)
-        return Encode::undefined();
+    if (callData->argc == 0)
+        RETURN_UNDEFINED();
 
-    QString uriString = context->args()[0].toQString();
+    QString uriString = callData->args[0].toQString();
     bool ok;
     QString out = encode(uriString, uriUnescapedReserved, &ok);
     if (!ok) {
-        Scope scope(context);
-        ScopedString s(scope, context->d()->engine->newString(QStringLiteral("malformed URI sequence")));
-        return context->engine()->throwURIError(s);
+        ScopedString s(scope, scope.engine->newString(QStringLiteral("malformed URI sequence")));
+        RETURN_RESULT(scope.engine->throwURIError(s));
     }
 
-    return context->d()->engine->newString(out)->asReturnedValue();
+    RETURN_RESULT(scope.engine->newString(out));
 }
 
 /// encodeURIComponent [15.1.3.4]
-ReturnedValue GlobalFunctions::method_encodeURIComponent(CallContext *context)
+void GlobalFunctions::method_encodeURIComponent(const BuiltinFunction *, Scope &scope, CallData *callData)
 {
-    if (context->argc() == 0)
-        return Encode::undefined();
+    if (callData->argc == 0)
+        RETURN_UNDEFINED();
 
-    QString uriString = context->args()[0].toQString();
+    QString uriString = callData->args[0].toQString();
     bool ok;
     QString out = encode(uriString, uriUnescaped, &ok);
     if (!ok) {
-        Scope scope(context);
-        ScopedString s(scope, context->d()->engine->newString(QStringLiteral("malformed URI sequence")));
-        return context->engine()->throwURIError(s);
+        ScopedString s(scope, scope.engine->newString(QStringLiteral("malformed URI sequence")));
+        RETURN_RESULT(scope.engine->throwURIError(s));
     }
 
-    return context->d()->engine->newString(out)->asReturnedValue();
+    RETURN_RESULT(scope.engine->newString(out));
 }
 
-ReturnedValue GlobalFunctions::method_escape(CallContext *context)
+void GlobalFunctions::method_escape(const BuiltinFunction *, Scope &scope, CallData *callData)
 {
-    if (!context->argc())
-        return context->d()->engine->newString(QStringLiteral("undefined"))->asReturnedValue();
+    if (!callData->argc)
+        RETURN_RESULT(scope.engine->newString(QStringLiteral("undefined")));
 
-    QString str = context->args()[0].toQString();
-    return context->d()->engine->newString(escape(str))->asReturnedValue();
+    QString str = callData->args[0].toQString();
+    RETURN_RESULT(scope.engine->newString(escape(str)));
 }
 
-ReturnedValue GlobalFunctions::method_unescape(CallContext *context)
+void GlobalFunctions::method_unescape(const BuiltinFunction *, Scope &scope, CallData *callData)
 {
-    if (!context->argc())
-        return context->d()->engine->newString(QStringLiteral("undefined"))->asReturnedValue();
+    if (!callData->argc)
+        RETURN_RESULT(scope.engine->newString(QStringLiteral("undefined")));
 
-    QString str = context->args()[0].toQString();
-    return context->d()->engine->newString(unescape(str))->asReturnedValue();
+    QString str = callData->args[0].toQString();
+    RETURN_RESULT(scope.engine->newString(unescape(str)));
 }
diff --git a/src/qml/jsruntime/qv4globalobject_p.h b/src/qml/jsruntime/qv4globalobject_p.h
index e8b3a92d34..273f1ba7ea 100644
--- a/src/qml/jsruntime/qv4globalobject_p.h
+++ b/src/qml/jsruntime/qv4globalobject_p.h
@@ -76,16 +76,16 @@ struct Q_QML_EXPORT EvalFunction : FunctionObject
 
 struct GlobalFunctions
 {
-    static ReturnedValue method_parseInt(CallContext *context);
-    static ReturnedValue method_parseFloat(CallContext *context);
-    static ReturnedValue method_isNaN(CallContext *context);
-    static ReturnedValue method_isFinite(CallContext *ctx);
-    static ReturnedValue method_decodeURI(CallContext *context);
-    static ReturnedValue method_decodeURIComponent(CallContext *context);
-    static ReturnedValue method_encodeURI(CallContext *context);
-    static ReturnedValue method_encodeURIComponent(CallContext *context);
-    static ReturnedValue method_escape(CallContext *context);
-    static ReturnedValue method_unescape(CallContext *context);
+    static void method_parseInt(const BuiltinFunction *, Scope &scope, CallData *callData);
+    static void method_parseFloat(const BuiltinFunction *, Scope &scope, CallData *callData);
+    static void method_isNaN(const BuiltinFunction *, Scope &scope, CallData *callData);
+    static void method_isFinite(const BuiltinFunction *, Scope &scope, CallData *callData);
+    static void method_decodeURI(const BuiltinFunction *, Scope &scope, CallData *callData);
+    static void method_decodeURIComponent(const BuiltinFunction *, Scope &scope, CallData *callData);
+    static void method_encodeURI(const BuiltinFunction *, Scope &scope, CallData *callData);
+    static void method_encodeURIComponent(const BuiltinFunction *, Scope &scope, CallData *callData);
+    static void method_escape(const BuiltinFunction *, Scope &scope, CallData *callData);
+    static void method_unescape(const BuiltinFunction *, Scope &scope, CallData *callData);
 };
 
 }
diff --git a/src/qml/jsruntime/qv4include.cpp b/src/qml/jsruntime/qv4include.cpp
index 1d393cf0aa..f033eb2d2d 100644
--- a/src/qml/jsruntime/qv4include.cpp
+++ b/src/qml/jsruntime/qv4include.cpp
@@ -195,23 +195,22 @@ void QV4Include::finished()
 /*
     Documented in qv8engine.cpp
 */
-QV4::ReturnedValue QV4Include::method_include(QV4::CallContext *ctx)
+void QV4Include::method_include(const QV4::BuiltinFunction *, QV4::Scope &scope, QV4::CallData *callData)
 {
-    if (!ctx->argc())
-        return QV4::Encode::undefined();
+    if (!callData->argc)
+        RETURN_UNDEFINED();
 
-    QV4::Scope scope(ctx->engine());
     QQmlContextData *context = scope.engine->callingQmlContext();
 
     if (!context || !context->isJSContext)
-        V4THROW_ERROR("Qt.include(): Can only be called from JavaScript files");
+        RETURN_RESULT(scope.engine->throwError(QString::fromUtf8("Qt.include(): Can only be called from JavaScript files")));
 
     QV4::ScopedValue callbackFunction(scope, QV4::Primitive::undefinedValue());
-    if (ctx->argc() >= 2 && ctx->args()[1].as<QV4::FunctionObject>())
-        callbackFunction = ctx->args()[1];
+    if (callData->argc >= 2 && callData->args[1].as<QV4::FunctionObject>())
+        callbackFunction = callData->args[1];
 
 #if QT_CONFIG(qml_network)
-    QUrl url(scope.engine->resolvedUrl(ctx->args()[0].toQStringNoThrow()));
+    QUrl url(scope.engine->resolvedUrl(callData->args[0].toQStringNoThrow()));
     if (scope.engine->qmlEngine() && scope.engine->qmlEngine()->urlInterceptor())
         url = scope.engine->qmlEngine()->urlInterceptor()->intercept(url, QQmlAbstractUrlInterceptor::JavaScriptFile);
 
@@ -261,12 +260,12 @@ QV4::ReturnedValue QV4Include::method_include(QV4::CallContext *ctx)
         callback(callbackFunction, result);
     }
 
-    return result->asReturnedValue();
+    scope.result = result;
 #else
     QV4::ScopedValue result(scope);
     result = resultValue(scope.engine, NetworkError);
     callback(callbackFunction, result);
-    return result->asReturnedValue();
+    scope.result = result;
 #endif
 }
 
diff --git a/src/qml/jsruntime/qv4include_p.h b/src/qml/jsruntime/qv4include_p.h
index 4c601a5e7b..5908d6bfde 100644
--- a/src/qml/jsruntime/qv4include_p.h
+++ b/src/qml/jsruntime/qv4include_p.h
@@ -77,7 +77,7 @@ public:
         Exception = 3
     };
 
-    static QV4::ReturnedValue method_include(QV4::CallContext *ctx);
+    static void method_include(const QV4::BuiltinFunction *, QV4::Scope &scope, QV4::CallData *callData);
 
 private Q_SLOTS:
     void finished();
diff --git a/src/qml/jsruntime/qv4jsonobject.cpp b/src/qml/jsruntime/qv4jsonobject.cpp
index d79e6242ba..1d571f53f3 100644
--- a/src/qml/jsruntime/qv4jsonobject.cpp
+++ b/src/qml/jsruntime/qv4jsonobject.cpp
@@ -883,10 +883,9 @@ void Heap::JsonObject::init()
 }
 
 
-ReturnedValue JsonObject::method_parse(CallContext *ctx)
+void JsonObject::method_parse(const BuiltinFunction *, Scope &scope, CallData *callData)
 {
-    Scope scope(ctx);
-    ScopedValue v(scope, ctx->argument(0));
+    ScopedValue v(scope, callData->argument(0));
     QString jtext = v->toQString();
 
     DEBUG << "parsing source = " << jtext;
@@ -895,19 +894,17 @@ ReturnedValue JsonObject::method_parse(CallContext *ctx)
     ScopedValue result(scope, parser.parse(&error));
     if (error.error != QJsonParseError::NoError) {
         DEBUG << "parse error" << error.errorString();
-        return ctx->engine()->throwSyntaxError(QStringLiteral("JSON.parse: Parse error"));
+        RETURN_RESULT(scope.engine->throwSyntaxError(QStringLiteral("JSON.parse: Parse error")));
     }
 
-    return result->asReturnedValue();
+    scope.result = result;
 }
 
-ReturnedValue JsonObject::method_stringify(CallContext *ctx)
+void JsonObject::method_stringify(const BuiltinFunction *, Scope &scope, CallData *callData)
 {
-    Scope scope(ctx);
-
     Stringify stringify(scope.engine);
 
-    ScopedObject o(scope, ctx->argument(1));
+    ScopedObject o(scope, callData->argument(1));
     if (o) {
         stringify.replacerFunction = o->as<FunctionObject>();
         if (o->isArrayObject()) {
@@ -932,7 +929,7 @@ ReturnedValue JsonObject::method_stringify(CallContext *ctx)
         }
     }
 
-    ScopedValue s(scope, ctx->argument(2));
+    ScopedValue s(scope, callData->argument(2));
     if (NumberObject *n = s->as<NumberObject>())
         s = Encode(n->value());
     else if (StringObject *so = s->as<StringObject>())
@@ -945,11 +942,11 @@ ReturnedValue JsonObject::method_stringify(CallContext *ctx)
     }
 
 
-    ScopedValue arg0(scope, ctx->argument(0));
+    ScopedValue arg0(scope, callData->argument(0));
     QString result = stringify.Str(QString(), arg0);
     if (result.isEmpty() || scope.engine->hasException)
-        return Encode::undefined();
-    return ctx->d()->engine->newString(result)->asReturnedValue();
+        RETURN_UNDEFINED();
+    scope.result = scope.engine->newString(result);
 }
 
 
diff --git a/src/qml/jsruntime/qv4jsonobject_p.h b/src/qml/jsruntime/qv4jsonobject_p.h
index 43248a214d..a73ce1c74e 100644
--- a/src/qml/jsruntime/qv4jsonobject_p.h
+++ b/src/qml/jsruntime/qv4jsonobject_p.h
@@ -88,8 +88,8 @@ private:
     typedef QSet<ObjectItem> V4ObjectSet;
 public:
 
-    static ReturnedValue method_parse(CallContext *ctx);
-    static ReturnedValue method_stringify(CallContext *ctx);
+    static void method_parse(const BuiltinFunction *, Scope &scope, CallData *callData);
+    static void method_stringify(const BuiltinFunction *, Scope &scope, CallData *callData);
 
     static ReturnedValue fromJsonValue(ExecutionEngine *engine, const QJsonValue &value);
     static ReturnedValue fromJsonObject(ExecutionEngine *engine, const QJsonObject &object);
diff --git a/src/qml/jsruntime/qv4regexpobject.cpp b/src/qml/jsruntime/qv4regexpobject.cpp
index 41d8010fef..40682aaa4b 100644
--- a/src/qml/jsruntime/qv4regexpobject.cpp
+++ b/src/qml/jsruntime/qv4regexpobject.cpp
@@ -349,34 +349,33 @@ void RegExpPrototype::init(ExecutionEngine *engine, Object *constructor)
     defineDefaultProperty(QStringLiteral("compile"), method_compile, 2);
 }
 
-ReturnedValue RegExpPrototype::method_exec(CallContext *ctx)
+void RegExpPrototype::method_exec(const BuiltinFunction *, Scope &scope, CallData *callData)
 {
-    Scope scope(ctx);
-    Scoped<RegExpObject> r(scope, ctx->thisObject().as<RegExpObject>());
+    Scoped<RegExpObject> r(scope, callData->thisObject.as<RegExpObject>());
     if (!r)
-        return ctx->engine()->throwTypeError();
+        THROW_TYPE_ERROR();
 
-    ScopedValue arg(scope, ctx->argument(0));
+    ScopedValue arg(scope, callData->argument(0));
     ScopedString str(scope, arg->toString(scope.engine));
     if (scope.hasException())
-        return Encode::undefined();
+        RETURN_UNDEFINED();
     QString s = str->toQString();
 
     int offset = r->global() ? r->lastIndexProperty()->toInt32() : 0;
     if (offset < 0 || offset > s.length()) {
         *r->lastIndexProperty() = Primitive::fromInt32(0);
-        return Encode::null();
+        RETURN_RESULT(Encode::null());
     }
 
     uint* matchOffsets = (uint*)alloca(r->value()->captureCount() * 2 * sizeof(uint));
     const int result = Scoped<RegExp>(scope, r->value())->match(s, offset, matchOffsets);
 
-    Scoped<RegExpCtor> regExpCtor(scope, ctx->d()->engine->regExpCtor());
+    Scoped<RegExpCtor> regExpCtor(scope, scope.engine->regExpCtor());
     regExpCtor->d()->clearLastMatch();
 
     if (result == -1) {
         *r->lastIndexProperty() = Primitive::fromInt32(0);
-        return Encode::null();
+        RETURN_RESULT(Encode::null());
     }
 
     // fill in result data
@@ -387,7 +386,7 @@ ReturnedValue RegExpPrototype::method_exec(CallContext *ctx)
     for (int i = 0; i < len; ++i) {
         int start = matchOffsets[i * 2];
         int end = matchOffsets[i * 2 + 1];
-        v = (start != -1) ? ctx->d()->engine->newString(s.mid(start, end - start))->asReturnedValue() : Encode::undefined();
+        v = (start != -1) ? scope.engine->newString(s.mid(start, end - start))->asReturnedValue() : Encode::undefined();
         array->arrayPut(i, v);
     }
     array->setArrayLengthUnchecked(len);
@@ -403,84 +402,75 @@ ReturnedValue RegExpPrototype::method_exec(CallContext *ctx)
     if (r->global())
         *r->lastIndexProperty() = Primitive::fromInt32(matchOffsets[1]);
 
-    return array.asReturnedValue();
+    scope.result = array;
 }
 
-ReturnedValue RegExpPrototype::method_test(CallContext *ctx)
+void RegExpPrototype::method_test(const BuiltinFunction *b, Scope &scope, CallData *callData)
 {
-    Scope scope(ctx);
-    ScopedValue r(scope, method_exec(ctx));
-    return Encode(!r->isNull());
+    method_exec(b, scope, callData);
+    scope.result = Encode(!scope.result.isNull());
 }
 
-ReturnedValue RegExpPrototype::method_toString(CallContext *ctx)
+void RegExpPrototype::method_toString(const BuiltinFunction *, Scope &scope, CallData *callData)
 {
-    Scope scope(ctx);
-    Scoped<RegExpObject> r(scope, ctx->thisObject().as<RegExpObject>());
+    Scoped<RegExpObject> r(scope, callData->thisObject.as<RegExpObject>());
     if (!r)
-        return ctx->engine()->throwTypeError();
+        THROW_TYPE_ERROR();
 
-    return ctx->d()->engine->newString(r->toString())->asReturnedValue();
+    scope.result = scope.engine->newString(r->toString());
 }
 
-ReturnedValue RegExpPrototype::method_compile(CallContext *ctx)
+void RegExpPrototype::method_compile(const BuiltinFunction *, Scope &scope, CallData *callData)
 {
-    Scope scope(ctx);
-    Scoped<RegExpObject> r(scope, ctx->thisObject().as<RegExpObject>());
+    Scoped<RegExpObject> r(scope, callData->thisObject.as<RegExpObject>());
     if (!r)
-        return ctx->engine()->throwTypeError();
+        THROW_TYPE_ERROR();
 
-    ScopedCallData callData(scope, ctx->argc());
-    memcpy(callData->args, ctx->args(), ctx->argc()*sizeof(Value));
+    ScopedCallData cData(scope, callData->argc);
+    memcpy(cData->args, callData->args, callData->argc*sizeof(Value));
 
-    ctx->d()->engine->regExpCtor()->as<FunctionObject>()->construct(scope, callData);
+    scope.engine->regExpCtor()->as<FunctionObject>()->construct(scope, cData);
     Scoped<RegExpObject> re(scope, scope.result.asReturnedValue());
 
     r->d()->value = re->value();
     r->d()->global = re->global();
-    return Encode::undefined();
+    RETURN_UNDEFINED();
 }
 
 template <int index>
-ReturnedValue RegExpPrototype::method_get_lastMatch_n(CallContext *ctx)
+void RegExpPrototype::method_get_lastMatch_n(const BuiltinFunction *, Scope &scope, CallData *)
 {
-    Scope scope(ctx);
-    ScopedArrayObject lastMatch(scope, static_cast<RegExpCtor*>(ctx->d()->engine->regExpCtor())->lastMatch());
-    ScopedValue result(scope, lastMatch ? lastMatch->getIndexed(index) : Encode::undefined());
-    if (result->isUndefined())
-        return ctx->d()->engine->newString()->asReturnedValue();
-    return result->asReturnedValue();
+    ScopedArrayObject lastMatch(scope, static_cast<RegExpCtor*>(scope.engine->regExpCtor())->lastMatch());
+    scope.result = lastMatch ? lastMatch->getIndexed(index) : Encode::undefined();
+    if (scope.result.isUndefined())
+        scope.result = scope.engine->newString();
 }
 
-ReturnedValue RegExpPrototype::method_get_lastParen(CallContext *ctx)
+void RegExpPrototype::method_get_lastParen(const BuiltinFunction *, Scope &scope, CallData *)
 {
-    Scope scope(ctx);
-    ScopedArrayObject lastMatch(scope, static_cast<RegExpCtor*>(ctx->d()->engine->regExpCtor())->lastMatch());
-    ScopedValue result(scope, lastMatch ? lastMatch->getIndexed(lastMatch->getLength() - 1) : Encode::undefined());
-    if (result->isUndefined())
-        return ctx->d()->engine->newString()->asReturnedValue();
-    return result->asReturnedValue();
+    ScopedArrayObject lastMatch(scope, static_cast<RegExpCtor*>(scope.engine->regExpCtor())->lastMatch());
+    scope.result = lastMatch ? lastMatch->getIndexed(lastMatch->getLength() - 1) : Encode::undefined();
+    if (scope.result.isUndefined())
+        scope.result = scope.engine->newString();
 }
 
-ReturnedValue RegExpPrototype::method_get_input(CallContext *ctx)
+void RegExpPrototype::method_get_input(const BuiltinFunction *, Scope &scope, CallData *)
 {
-    return static_cast<RegExpCtor*>(ctx->d()->engine->regExpCtor())->lastInput()->asReturnedValue();
+    scope.result = static_cast<RegExpCtor*>(scope.engine->regExpCtor())->lastInput();
 }
 
-ReturnedValue RegExpPrototype::method_get_leftContext(CallContext *ctx)
+void RegExpPrototype::method_get_leftContext(const BuiltinFunction *, Scope &scope, CallData *)
 {
-    Scope scope(ctx);
-    Scoped<RegExpCtor> regExpCtor(scope, ctx->d()->engine->regExpCtor());
+    Scoped<RegExpCtor> regExpCtor(scope, scope.engine->regExpCtor());
     QString lastInput = regExpCtor->lastInput()->toQString();
-    return ctx->d()->engine->newString(lastInput.left(regExpCtor->lastMatchStart()))->asReturnedValue();
+    scope.result = scope.engine->newString(lastInput.left(regExpCtor->lastMatchStart()));
 }
 
-ReturnedValue RegExpPrototype::method_get_rightContext(CallContext *ctx)
+void RegExpPrototype::method_get_rightContext(const BuiltinFunction *, Scope &scope, CallData *)
 {
-    Scope scope(ctx);
-    Scoped<RegExpCtor> regExpCtor(scope, ctx->d()->engine->regExpCtor());
+    Scoped<RegExpCtor> regExpCtor(scope, scope.engine->regExpCtor());
     QString lastInput = regExpCtor->lastInput()->toQString();
-    return ctx->d()->engine->newString(lastInput.mid(regExpCtor->lastMatchEnd()))->asReturnedValue();
+    scope.result = scope.engine->newString(lastInput.mid(regExpCtor->lastMatchEnd()));
 }
 
 QT_END_NAMESPACE
diff --git a/src/qml/jsruntime/qv4regexpobject_p.h b/src/qml/jsruntime/qv4regexpobject_p.h
index 2c82cfdfd1..c0c7dfa78a 100644
--- a/src/qml/jsruntime/qv4regexpobject_p.h
+++ b/src/qml/jsruntime/qv4regexpobject_p.h
@@ -149,17 +149,17 @@ struct RegExpPrototype: RegExpObject
 {
     void init(ExecutionEngine *engine, Object *ctor);
 
-    static ReturnedValue method_exec(CallContext *ctx);
-    static ReturnedValue method_test(CallContext *ctx);
-    static ReturnedValue method_toString(CallContext *ctx);
-    static ReturnedValue method_compile(CallContext *ctx);
+    static void method_exec(const BuiltinFunction *, Scope &scope, CallData *callData);
+    static void method_test(const BuiltinFunction *, Scope &scope, CallData *callData);
+    static void method_toString(const BuiltinFunction *, Scope &scope, CallData *callData);
+    static void method_compile(const BuiltinFunction *, Scope &scope, CallData *callData);
 
     template <int index>
-    static ReturnedValue method_get_lastMatch_n(CallContext *ctx);
-    static ReturnedValue method_get_lastParen(CallContext *ctx);
-    static ReturnedValue method_get_input(CallContext *ctx);
-    static ReturnedValue method_get_leftContext(CallContext *ctx);
-    static ReturnedValue method_get_rightContext(CallContext *ctx);
+    static void method_get_lastMatch_n(const BuiltinFunction *, Scope &scope, CallData *callData);
+    static void method_get_lastParen(const BuiltinFunction *, Scope &scope, CallData *callData);
+    static void method_get_input(const BuiltinFunction *, Scope &scope, CallData *callData);
+    static void method_get_leftContext(const BuiltinFunction *, Scope &scope, CallData *callData);
+    static void method_get_rightContext(const BuiltinFunction *, Scope &scope, CallData *callData);
 };
 
 }
diff --git a/src/qml/jsruntime/qv4scopedvalue_p.h b/src/qml/jsruntime/qv4scopedvalue_p.h
index 379c3babda..6cdc6200e7 100644
--- a/src/qml/jsruntime/qv4scopedvalue_p.h
+++ b/src/qml/jsruntime/qv4scopedvalue_p.h
@@ -71,14 +71,14 @@ struct ScopedValue;
 #define CHECK_EXCEPTION() \
     do { \
         if (scope.hasException()) { \
-            scope.result = Encode::undefined(); \
+            scope.result = QV4::Encode::undefined(); \
             return; \
         } \
     } while (false)
 
 #define RETURN_UNDEFINED() \
     do { \
-        scope.result = Encode::undefined(); \
+        scope.result = QV4::Encode::undefined(); \
         return; \
     } while (false)