Start cleaning up flags in Heap::Base

The goal is to get rid of the flags here and reduce
the size of each GC'ed object with a pointer.

Change-Id: I8c876810037756b85a646348cc5992a688588ea5
Reviewed-by: Robin Burchell <robin.burchell@viroteck.net>
Reviewed-by: Simon Hausmann <simon.hausmann@digia.com>

4 files changed, 7 insertions, 11 deletions

diff --git a/src/qml/jsruntime/qv4functionobject.cpp b/src/qml/jsruntime/qv4functionobject.cpp
index 081321e956..0cdf6b5d7c 100644
--- a/src/qml/jsruntime/qv4functionobject.cpp
+++ b/src/qml/jsruntime/qv4functionobject.cpp
@@ -144,7 +144,6 @@ void FunctionObject::init(String *n, bool createProto)
     ScopedValue protectThis(s, this);
 
     d()->needsActivation = true;
-    d()->strictMode = false;
 
     ensureMemberIndex(s.engine, Heap::FunctionObject::Index_Prototype);
     if (createProto) {
@@ -452,7 +451,6 @@ Heap::SimpleScriptFunction::SimpleScriptFunction(QV4::ExecutionContext *scope, F
     Q_ASSERT(function->code);
 
     needsActivation = function->needsActivation();
-    strictMode = function->isStrict();
 
     // global function
     if (!scope)
diff --git a/src/qml/jsruntime/qv4functionobject_p.h b/src/qml/jsruntime/qv4functionobject_p.h
index 5d2715fa2f..7406e9b0ff 100644
--- a/src/qml/jsruntime/qv4functionobject_p.h
+++ b/src/qml/jsruntime/qv4functionobject_p.h
@@ -142,7 +142,7 @@ struct Q_QML_EXPORT FunctionObject: Object {
     ReturnedValue protoProperty() { return memberData()->data[Heap::FunctionObject::Index_Prototype].asReturnedValue(); }
 
     bool needsActivation() const { return d()->needsActivation; }
-    bool strictMode() const { return d()->strictMode; }
+    bool strictMode() const { return d()->function ? d()->function->isStrict() : false; }
     bool bindingKeyFlag() const { return d()->bindingKeyFlag; }
 
     static void markObjects(Heap::Base *that, ExecutionEngine *e);
diff --git a/src/qml/jsruntime/qv4globalobject.cpp b/src/qml/jsruntime/qv4globalobject.cpp
index c9d61f7c03..7669fa82bb 100644
--- a/src/qml/jsruntime/qv4globalobject.cpp
+++ b/src/qml/jsruntime/qv4globalobject.cpp
@@ -383,11 +383,9 @@ ReturnedValue EvalFunction::evalCall(CallData *callData, bool directCall)
     if (!function)
         return Encode::undefined();
 
-    d()->strictMode = function->isStrict() || (ctx->d()->strictMode);
-
     d()->needsActivation = function->needsActivation();
 
-    if (strictMode()) {
+    if (function->isStrict() || (ctx->d()->strictMode)) {
         ScopedFunctionObject e(scope, FunctionObject::createScriptFunction(ctx, function));
         ScopedCallData callData(scope, 0);
         callData->thisObject = ctx->d()->callData->thisObject;
@@ -397,7 +395,7 @@ ReturnedValue EvalFunction::evalCall(CallData *callData, bool directCall)
     ContextStateSaver stateSaver(scope, ctx);
 
     // set the correct strict mode flag on the context
-    ctx->d()->strictMode = strictMode();
+    ctx->d()->strictMode = false;
     ctx->d()->compilationUnit = function->compilationUnit;
 
     return function->code(ctx->engine(), function->codeData);
diff --git a/src/qml/jsruntime/qv4value_p.h b/src/qml/jsruntime/qv4value_p.h
index 73200404ab..01a1542b07 100644
--- a/src/qml/jsruntime/qv4value_p.h
+++ b/src/qml/jsruntime/qv4value_p.h
@@ -61,14 +61,14 @@ struct Q_QML_EXPORT Base {
         uchar markBit :  1;
         uchar inUse   :  1;
         uchar extensible : 1; // used by Object
-        uchar _unused : 1;
         uchar needsActivation : 1; // used by FunctionObject
-        uchar strictMode : 1; // used by FunctionObject
+        uchar _strictMode : 1; // used by FunctionObject
         uchar bindingKeyFlag : 1;
         uchar hasAccessorProperty : 1;
-        uchar _type;
+        uchar _unused : 1;
         mutable uchar subtype;
-        uchar _flags;
+        uchar _unused2;
+        uchar _unused3;
 
     };