JavaScriptCore-903.5.tar.gz

[apple/javascriptcore.git] / runtime / InternalFunction.cpp

diff --git a/runtime/InternalFunction.cpp b/runtime/InternalFunction.cpp
index 6714cf5426855025da380b636d3e0c5b5af60d60..c3b07f8297028e96f2ff503d95178f1ccf98f6ae 100644 (file)
--- a/runtime/InternalFunction.cpp
+++ b/runtime/InternalFunction.cpp
@@ -24,28 +24,53 @@
 #include "InternalFunction.h"
 
 #include "FunctionPrototype.h"
+#include "JSGlobalObject.h"
 #include "JSString.h"
 
 namespace JSC {
 
+// Ensure the compiler generates a vtable for InternalFunction!
+void InternalFunction::vtableAnchor() {}
+
 ASSERT_CLASS_FITS_IN_CELL(InternalFunction);
 
-const ClassInfo InternalFunction::info = { "Function", 0, 0, 0 };
+const ClassInfo InternalFunction::s_info = { "Function", &JSObjectWithGlobalObject::s_info, 0, 0 };
+
+InternalFunction::InternalFunction(VPtrStealingHackType)
+    : JSObjectWithGlobalObject(VPtrStealingHack)
+{
+}
+
+InternalFunction::InternalFunction(JSGlobalData* globalData, JSGlobalObject* globalObject, Structure* structure, const Identifier& name)
+    : JSObjectWithGlobalObject(globalObject, structure)
+{
+    ASSERT(inherits(&s_info));
+    putDirect(*globalData, globalData->propertyNames->name, jsString(globalData, name.isNull() ? "" : name.ustring()), DontDelete | ReadOnly | DontEnum);
+}
 
-const ClassInfo* InternalFunction::classInfo() const
+const UString& InternalFunction::name(ExecState* exec)
 {
-    return &info;
+    return asString(getDirect(exec->globalData(), exec->globalData().propertyNames->name))->tryGetValue();
 }
 
-InternalFunction::InternalFunction(JSGlobalData* globalData, PassRefPtr<Structure> structure, const Identifier& name)
-    : JSObject(structure)
+const UString InternalFunction::displayName(ExecState* exec)
 {
-    putDirect(globalData->propertyNames->name, jsString(globalData, name.ustring()), DontDelete | ReadOnly | DontEnum);
+    JSValue displayName = getDirect(exec->globalData(), exec->globalData().propertyNames->displayName);
+    
+    if (displayName && isJSString(&exec->globalData(), displayName))
+        return asString(displayName)->tryGetValue();
+    
+    return UString();
 }
 
-const UString& InternalFunction::name(JSGlobalData* globalData)
+const UString InternalFunction::calculatedDisplayName(ExecState* exec)
 {
-    return asString(getDirect(globalData->propertyNames->name))->value();
+    const UString explicitName = displayName(exec);
+    
+    if (!explicitName.isEmpty())
+        return explicitName;
+    
+    return name(exec);
 }
 
 } // namespace JSC