Remove nArguments and name from QV4::Function

Saves 12 bytes per Function

Change-Id: I9a495805f9201eb6162a520ff5c2defeb73dc37a
Reviewed-by: Simon Hausmann <simon.hausmann@digia.com>
Reviewed-by: Michael Brasser <michael.brasser@live.com>

6 files changed, 14 insertions, 30 deletions

diff --git a/src/qml/jsruntime/qv4context.cpp b/src/qml/jsruntime/qv4context.cpp
index cec42e87aa..8a78b18df1 100644
--- a/src/qml/jsruntime/qv4context.cpp
+++ b/src/qml/jsruntime/qv4context.cpp
@@ -153,7 +153,7 @@ String * const *ExecutionContext::variables() const
     if (type < Type_SimpleCallContext)
         return 0;
     QV4::FunctionObject *f = static_cast<const CallContext *>(this)->function;
-    return (f && f->function) ? f->function->internalClass->nameMap.constData() + f->function->nArguments : 0;
+    return (f && f->function) ? f->function->internalClass->nameMap.constData() + f->function->compiledFunction->nFormals : 0;
 }
 
 unsigned int ExecutionContext::variableCount() const
@@ -392,7 +392,7 @@ ReturnedValue ExecutionContext::getProperty(const StringRef name)
                     return v.asReturnedValue();
             }
             if (f->function && f->function->isNamedExpression()
-                && name->equals(f->function->name))
+                && name->equals(f->function->name()))
                 return f.asReturnedValue();
         }
 
@@ -461,7 +461,7 @@ ReturnedValue ExecutionContext::getPropertyAndBase(const StringRef name, ObjectR
                 }
             }
             if (f->function && f->function->isNamedExpression()
-                && name->equals(f->function->name))
+                && name->equals(f->function->name()))
                 return c->function->asReturnedValue();
         }
 
diff --git a/src/qml/jsruntime/qv4engine.cpp b/src/qml/jsruntime/qv4engine.cpp
index 56ca31c85d..4bf6c89f26 100644
--- a/src/qml/jsruntime/qv4engine.cpp
+++ b/src/qml/jsruntime/qv4engine.cpp
@@ -719,7 +719,7 @@ QVector<StackFrame> ExecutionEngine::stackTrace(int frameLimit) const
     if (frameLimit && globalCode) {
         StackFrame frame;
         frame.source = globalCode->sourceFile();
-        frame.function = globalCode->name->toQString();
+        frame.function = globalCode->name()->toQString();
         frame.line = -1;
         frame.column = -1;
 
@@ -828,9 +828,6 @@ void ExecutionEngine::markObjects()
 
     globalObject->mark(this);
 
-    if (globalCode)
-        globalCode->mark(this);
-
     for (int i = 0; i < argumentsAccessors.size(); ++i) {
         const Property &pd = argumentsAccessors.at(i);
         if (FunctionObject *getter = pd.getter())
diff --git a/src/qml/jsruntime/qv4function.cpp b/src/qml/jsruntime/qv4function.cpp
index 811b445f9e..550c359772 100644
--- a/src/qml/jsruntime/qv4function.cpp
+++ b/src/qml/jsruntime/qv4function.cpp
@@ -60,10 +60,6 @@ Function::Function(ExecutionEngine *engine, CompiledData::CompilationUnit *unit,
 {
     Q_UNUSED(engine);
 
-    name = compilationUnit->runtimeStrings[compiledFunction->nameIndex].asString();
-
-    nArguments = compiledFunction->nFormals;
-
     internalClass = engine->emptyClass;
     const quint32 *formalsIndices = compiledFunction->formalsTable();
     // iterate backwards, so we get the right ordering for duplicate names
@@ -92,11 +88,6 @@ Function::~Function()
 }
 
 
-void Function::mark(ExecutionEngine *e)
-{
-    name.mark(e);
-}
-
 namespace QV4 {
 template <int field, typename SearchType>
 struct LineNumberMappingHelper
diff --git a/src/qml/jsruntime/qv4function_p.h b/src/qml/jsruntime/qv4function_p.h
index 377b45bfa3..530d67e3c8 100644
--- a/src/qml/jsruntime/qv4function_p.h
+++ b/src/qml/jsruntime/qv4function_p.h
@@ -81,8 +81,6 @@ struct InternalClass;
 struct Lookup;
 
 struct Function {
-    StringValue name;
-
     const CompiledData::Function *compiledFunction;
     CompiledData::CompilationUnit *compilationUnit;
 
@@ -91,13 +89,15 @@ struct Function {
     quint32 codeSize;
 
     // first nArguments names in internalClass are the actual arguments
-    int nArguments;
     InternalClass *internalClass;
 
     Function(ExecutionEngine *engine, CompiledData::CompilationUnit *unit, const CompiledData::Function *function,
              ReturnedValue (*codePtr)(ExecutionContext *, const uchar *), quint32 _codeSize);
     ~Function();
 
+    inline StringRef name() {
+        return compilationUnit->runtimeStrings[compiledFunction->nameIndex];
+    }
     inline QString sourceFile() const { return compilationUnit->fileName(); }
 
     inline bool usesArgumentsObject() const { return compiledFunction->flags & CompiledData::Function::UsesArgumentsObject; }
@@ -107,8 +107,6 @@ struct Function {
     inline bool needsActivation() const
     { return compiledFunction->nInnerFunctions > 0 || (compiledFunction->flags & (CompiledData::Function::HasDirectEval | CompiledData::Function::UsesArgumentsObject)); }
 
-    void mark(ExecutionEngine *e);
-
     int lineNumberForProgramCounter(qptrdiff offset) const;
     QList<qptrdiff> programCountersForAllLines() const;
 };
diff --git a/src/qml/jsruntime/qv4functionobject.cpp b/src/qml/jsruntime/qv4functionobject.cpp
index 66e956e43c..e8a442faca 100644
--- a/src/qml/jsruntime/qv4functionobject.cpp
+++ b/src/qml/jsruntime/qv4functionobject.cpp
@@ -177,8 +177,6 @@ void FunctionObject::markObjects(Managed *that, ExecutionEngine *e)
 //    for (uint i = 0; i < varCount; ++i)
 //        varList[i]->mark();
     o->scope->mark(e);
-    if (o->function)
-        o->function->mark(e);
 
     Object::markObjects(that, e);
 }
@@ -398,7 +396,7 @@ ReturnedValue FunctionPrototype::method_bind(CallContext *ctx)
 DEFINE_OBJECT_VTABLE(ScriptFunction);
 
 ScriptFunction::ScriptFunction(ExecutionContext *scope, Function *function)
-    : FunctionObject(scope, function->name, true)
+    : FunctionObject(scope, function->name(), true)
 {
     setVTable(staticVTable());
 
@@ -418,8 +416,8 @@ ScriptFunction::ScriptFunction(ExecutionContext *scope, Function *function)
 
     needsActivation = function->needsActivation();
     strictMode = function->isStrict();
-    formalParameterCount = function->nArguments;
-    varCount = function->internalClass->size - function->nArguments;
+    formalParameterCount = function->compiledFunction->nFormals;
+    varCount = function->internalClass->size - function->compiledFunction->nFormals;
 
     defineReadonlyProperty(scope->engine->id_length, Primitive::fromInt32(formalParameterCount));
 
@@ -483,7 +481,7 @@ ReturnedValue ScriptFunction::call(Managed *that, CallData *callData)
 DEFINE_OBJECT_VTABLE(SimpleScriptFunction);
 
 SimpleScriptFunction::SimpleScriptFunction(ExecutionContext *scope, Function *function, bool createProto)
-    : FunctionObject(scope, function->name, createProto)
+    : FunctionObject(scope, function->name(), createProto)
 {
     setVTable(staticVTable());
 
@@ -503,8 +501,8 @@ SimpleScriptFunction::SimpleScriptFunction(ExecutionContext *scope, Function *fu
 
     needsActivation = function->needsActivation();
     strictMode = function->isStrict();
-    formalParameterCount = function->nArguments;
-    varCount = function->internalClass->size - function->nArguments;
+    formalParameterCount = function->compiledFunction->nFormals;
+    varCount = function->internalClass->size - function->compiledFunction->nFormals;
 
     defineReadonlyProperty(scope->engine->id_length, Primitive::fromInt32(formalParameterCount));
 
diff --git a/src/qml/jsruntime/qv4profiling.cpp b/src/qml/jsruntime/qv4profiling.cpp
index 69efbfdee3..8a0cc56448 100644
--- a/src/qml/jsruntime/qv4profiling.cpp
+++ b/src/qml/jsruntime/qv4profiling.cpp
@@ -51,7 +51,7 @@ FunctionCallProperties FunctionCall::resolve() const
     FunctionCallProperties props = {
         m_start,
         m_end,
-        m_function->name.toQString(),
+        m_function->name()->toQString(),
         m_function->compilationUnit->fileName(),
         m_function->compiledFunction->location.line,
         m_function->compiledFunction->location.column