Speed up invocation of builtin functions

Completely avoid creation of a CallContext for those methods,
as we don't need it.

Change-Id: Iff1a38fd3c7e846df6ec0374cb7b3fb8f1b4de3a
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>

1 files changed, 21 insertions, 0 deletions

diff --git a/src/qml/jsruntime/qv4object.cpp b/src/qml/jsruntime/qv4object.cpp
index f217e301ac..cb13069ca0 100644
--- a/src/qml/jsruntime/qv4object.cpp
+++ b/src/qml/jsruntime/qv4object.cpp
@@ -166,6 +166,17 @@ void Object::defineDefaultProperty(const QString &name, ReturnedValue (*code)(Ca
     defineDefaultProperty(s, function);
 }
 
+void Object::defineDefaultProperty(const QString &name, void (*code)(const BuiltinFunction *, Scope &, CallData *), int argumentCount)
+{
+    ExecutionEngine *e = engine();
+    Scope scope(e);
+    ScopedString s(scope, e->newIdentifier(name));
+    ExecutionContext *global = e->rootContext();
+    ScopedFunctionObject function(scope, BuiltinFunction::create(global, s, code));
+    function->defineReadonlyProperty(e->id_length(), Primitive::fromInt32(argumentCount));
+    defineDefaultProperty(s, function);
+}
+
 void Object::defineDefaultProperty(String *name, ReturnedValue (*code)(CallContext *), int argumentCount)
 {
     ExecutionEngine *e = engine();
@@ -176,6 +187,16 @@ void Object::defineDefaultProperty(String *name, ReturnedValue (*code)(CallConte
     defineDefaultProperty(name, function);
 }
 
+void Object::defineDefaultProperty(String *name, void (*code)(const BuiltinFunction *, Scope &, CallData *), int argumentCount)
+{
+    ExecutionEngine *e = engine();
+    Scope scope(e);
+    ExecutionContext *global = e->rootContext();
+    ScopedFunctionObject function(scope, BuiltinFunction::create(global, name, code));
+    function->defineReadonlyProperty(e->id_length(), Primitive::fromInt32(argumentCount));
+    defineDefaultProperty(name, function);
+}
+
 void Object::defineAccessorProperty(const QString &name, ReturnedValue (*getter)(CallContext *), ReturnedValue (*setter)(CallContext *))
 {
     ExecutionEngine *e = engine();