V4: Pass scope around as parameters inside the runtime.

The implementation of many (or all) runtime functions consist of first
creating a QV4::Scope, which saves and restores the JS stack pointer.
It also prevents tail-calls because of that restoring behavior. In many
cases it suffices to do that at the entry-point of the runtime.

The return value of a JS function call is now also stored in the scope.
Previously, all return values were stored in a ScopedValue, got loaded
on return, and immediately stored in another ScopedValue in the caller.
This resulted in a lot of stores, where now there is only one store
needed, and no extra ScopedValue for every function.

Change-Id: I13d80fc0ce72c5702ef1536d41d12f710c5914fa
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>

1 files changed, 8 insertions, 8 deletions

diff --git a/src/qml/jsruntime/qv4errorobject_p.h b/src/qml/jsruntime/qv4errorobject_p.h
index 1ca2fedd7b..42a3d05d9f 100644
--- a/src/qml/jsruntime/qv4errorobject_p.h
+++ b/src/qml/jsruntime/qv4errorobject_p.h
@@ -221,50 +221,50 @@ struct ErrorCtor: FunctionObject
 {
     V4_OBJECT2(ErrorCtor, FunctionObject)
 
-    static ReturnedValue construct(const Managed *, CallData *callData);
-    static ReturnedValue call(const Managed *that, CallData *callData);
+    static void construct(const Managed *, Scope &scope, CallData *callData);
+    static void call(const Managed *that, Scope &scope, CallData *callData);
 };
 
 struct EvalErrorCtor: ErrorCtor
 {
     V4_OBJECT2(EvalErrorCtor, ErrorCtor)
 
-    static ReturnedValue construct(const Managed *m, CallData *callData);
+    static void construct(const Managed *m, Scope &scope, CallData *callData);
 };
 
 struct RangeErrorCtor: ErrorCtor
 {
     V4_OBJECT2(RangeErrorCtor, ErrorCtor)
 
-    static ReturnedValue construct(const Managed *m, CallData *callData);
+    static void construct(const Managed *, Scope &scope, CallData *callData);
 };
 
 struct ReferenceErrorCtor: ErrorCtor
 {
     V4_OBJECT2(ReferenceErrorCtor, ErrorCtor)
 
-    static ReturnedValue construct(const Managed *m, CallData *callData);
+    static void construct(const Managed *m, Scope &scope, CallData *callData);
 };
 
 struct SyntaxErrorCtor: ErrorCtor
 {
     V4_OBJECT2(SyntaxErrorCtor, ErrorCtor)
 
-    static ReturnedValue construct(const Managed *m, CallData *callData);
+    static void construct(const Managed *m, Scope &scope, CallData *callData);
 };
 
 struct TypeErrorCtor: ErrorCtor
 {
     V4_OBJECT2(TypeErrorCtor, ErrorCtor)
 
-    static ReturnedValue construct(const Managed *m, CallData *callData);
+    static void construct(const Managed *m, Scope &scope, CallData *callData);
 };
 
 struct URIErrorCtor: ErrorCtor
 {
     V4_OBJECT2(URIErrorCtor, ErrorCtor)
 
-    static ReturnedValue construct(const Managed *m, CallData *callData);
+    static void construct(const Managed *m, Scope &scope, CallData *callData);
 };