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 <[email protected]>

1 files changed, 2 insertions, 2 deletions

diff --git a/src/qml/jsruntime/qv4arrayobject_p.h b/src/qml/jsruntime/qv4arrayobject_p.h
index bae5f9e0da..f49ed76b02 100644
--- a/src/qml/jsruntime/qv4arrayobject_p.h
+++ b/src/qml/jsruntime/qv4arrayobject_p.h
@@ -70,8 +70,8 @@ struct ArrayCtor: FunctionObject
 {
     V4_OBJECT2(ArrayCtor, FunctionObject)
 
-    static ReturnedValue construct(const Managed *m, CallData *callData);
-    static ReturnedValue call(const Managed *that, CallData *callData);
+    static void construct(const Managed *m, Scope &scope, CallData *callData);
+    static void call(const Managed *that, Scope &scope, CallData *callData);
 };
 
 struct ArrayPrototype: ArrayObject