JavaScriptCore-721.26.tar.gz

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

diff --git a/runtime/JSGlobalObject.cpp b/runtime/JSGlobalObject.cpp
index 4bf0a6904c32d8a9ee4eb3d058f5d4e205330a4a..93ded4c7d9afb0d663b593630ecb0c1cc06d644b 100644 (file)
--- a/runtime/JSGlobalObject.cpp
+++ b/runtime/JSGlobalObject.cpp
@@ -117,10 +117,8 @@ JSGlobalObject::~JSGlobalObject()
         (*it)->clearGlobalObject();
         
     RegisterFile& registerFile = globalData()->interpreter->registerFile();
-    if (registerFile.globalObject() == this) {
-        registerFile.setGlobalObject(0);
+    if (registerFile.clearGlobalObject(this))
         registerFile.setNumGlobals(0);
-    }
     d()->destructor(d());
 }
 
@@ -247,15 +245,6 @@ void JSGlobalObject::reset(JSValue prototype)
     ErrorPrototype* errorPrototype = new (exec) ErrorPrototype(exec, ErrorPrototype::createStructure(d()->objectPrototype), d()->prototypeFunctionStructure.get());
     d()->errorStructure = ErrorInstance::createStructure(errorPrototype);
 
-    RefPtr<Structure> nativeErrorPrototypeStructure = NativeErrorPrototype::createStructure(errorPrototype);
-
-    NativeErrorPrototype* evalErrorPrototype = new (exec) NativeErrorPrototype(exec, nativeErrorPrototypeStructure, "EvalError", "EvalError");
-    NativeErrorPrototype* rangeErrorPrototype = new (exec) NativeErrorPrototype(exec, nativeErrorPrototypeStructure, "RangeError", "RangeError");
-    NativeErrorPrototype* referenceErrorPrototype = new (exec) NativeErrorPrototype(exec, nativeErrorPrototypeStructure, "ReferenceError", "ReferenceError");
-    NativeErrorPrototype* syntaxErrorPrototype = new (exec) NativeErrorPrototype(exec, nativeErrorPrototypeStructure, "SyntaxError", "SyntaxError");
-    NativeErrorPrototype* typeErrorPrototype = new (exec) NativeErrorPrototype(exec, nativeErrorPrototypeStructure, "TypeError", "TypeError");
-    NativeErrorPrototype* URIErrorPrototype = new (exec) NativeErrorPrototype(exec, nativeErrorPrototypeStructure, "URIError", "URIError");
-
     // Constructors
 
     JSCell* objectConstructor = new (exec) ObjectConstructor(exec, ObjectConstructor::createStructure(d()->functionPrototype), d()->objectPrototype, d()->prototypeFunctionStructure.get());
@@ -270,14 +259,15 @@ void JSGlobalObject::reset(JSValue prototype)
 
     d()->errorConstructor = new (exec) ErrorConstructor(exec, ErrorConstructor::createStructure(d()->functionPrototype), errorPrototype);
 
+    RefPtr<Structure> nativeErrorPrototypeStructure = NativeErrorPrototype::createStructure(errorPrototype);
     RefPtr<Structure> nativeErrorStructure = NativeErrorConstructor::createStructure(d()->functionPrototype);
 
-    d()->evalErrorConstructor = new (exec) NativeErrorConstructor(exec, nativeErrorStructure, evalErrorPrototype);
-    d()->rangeErrorConstructor = new (exec) NativeErrorConstructor(exec, nativeErrorStructure, rangeErrorPrototype);
-    d()->referenceErrorConstructor = new (exec) NativeErrorConstructor(exec, nativeErrorStructure, referenceErrorPrototype);
-    d()->syntaxErrorConstructor = new (exec) NativeErrorConstructor(exec, nativeErrorStructure, syntaxErrorPrototype);
-    d()->typeErrorConstructor = new (exec) NativeErrorConstructor(exec, nativeErrorStructure, typeErrorPrototype);
-    d()->URIErrorConstructor = new (exec) NativeErrorConstructor(exec, nativeErrorStructure, URIErrorPrototype);
+    d()->evalErrorConstructor = new (exec) NativeErrorConstructor(exec, nativeErrorStructure, nativeErrorPrototypeStructure, "EvalError");
+    d()->rangeErrorConstructor = new (exec) NativeErrorConstructor(exec, nativeErrorStructure, nativeErrorPrototypeStructure, "RangeError");
+    d()->referenceErrorConstructor = new (exec) NativeErrorConstructor(exec, nativeErrorStructure, nativeErrorPrototypeStructure, "ReferenceError");
+    d()->syntaxErrorConstructor = new (exec) NativeErrorConstructor(exec, nativeErrorStructure, nativeErrorPrototypeStructure, "SyntaxError");
+    d()->typeErrorConstructor = new (exec) NativeErrorConstructor(exec, nativeErrorStructure, nativeErrorPrototypeStructure, "TypeError");
+    d()->URIErrorConstructor = new (exec) NativeErrorConstructor(exec, nativeErrorStructure, nativeErrorPrototypeStructure, "URIError");
 
     d()->objectPrototype->putDirectFunctionWithoutTransition(exec->propertyNames().constructor, objectConstructor, DontEnum);
     d()->functionPrototype->putDirectFunctionWithoutTransition(exec->propertyNames().constructor, functionConstructor, DontEnum);
@@ -289,13 +279,6 @@ void JSGlobalObject::reset(JSValue prototype)
     d()->regExpPrototype->putDirectFunctionWithoutTransition(exec->propertyNames().constructor, d()->regExpConstructor, DontEnum);
     errorPrototype->putDirectFunctionWithoutTransition(exec->propertyNames().constructor, d()->errorConstructor, DontEnum);
 
-    evalErrorPrototype->putDirect(exec->propertyNames().constructor, d()->evalErrorConstructor, DontEnum);
-    rangeErrorPrototype->putDirect(exec->propertyNames().constructor, d()->rangeErrorConstructor, DontEnum);
-    referenceErrorPrototype->putDirect(exec->propertyNames().constructor, d()->referenceErrorConstructor, DontEnum);
-    syntaxErrorPrototype->putDirect(exec->propertyNames().constructor, d()->syntaxErrorConstructor, DontEnum);
-    typeErrorPrototype->putDirect(exec->propertyNames().constructor, d()->typeErrorConstructor, DontEnum);
-    URIErrorPrototype->putDirect(exec->propertyNames().constructor, d()->URIErrorConstructor, DontEnum);
-
     // Set global constructors
 
     // FIXME: These properties could be handled by a static hash table.
@@ -319,9 +302,9 @@ void JSGlobalObject::reset(JSValue prototype)
     // Set global values.
     GlobalPropertyInfo staticGlobals[] = {
         GlobalPropertyInfo(Identifier(exec, "Math"), new (exec) MathObject(exec, MathObject::createStructure(d()->objectPrototype)), DontEnum | DontDelete),
-        GlobalPropertyInfo(Identifier(exec, "NaN"), jsNaN(exec), DontEnum | DontDelete),
-        GlobalPropertyInfo(Identifier(exec, "Infinity"), jsNumber(exec, Inf), DontEnum | DontDelete),
-        GlobalPropertyInfo(Identifier(exec, "undefined"), jsUndefined(), DontEnum | DontDelete),
+        GlobalPropertyInfo(Identifier(exec, "NaN"), jsNaN(exec), DontEnum | DontDelete | ReadOnly),
+        GlobalPropertyInfo(Identifier(exec, "Infinity"), jsNumber(exec, Inf), DontEnum | DontDelete | ReadOnly),
+        GlobalPropertyInfo(Identifier(exec, "undefined"), jsUndefined(), DontEnum | DontDelete | ReadOnly),
         GlobalPropertyInfo(Identifier(exec, "JSON"), new (exec) JSONObject(JSONObject::createStructure(d()->objectPrototype)), DontEnum | DontDelete)
     };
 
@@ -428,7 +411,7 @@ ExecState* JSGlobalObject::globalExec()
     return CallFrame::create(d()->globalCallFrame + RegisterFile::CallFrameHeaderSize);
 }
 
-bool JSGlobalObject::isDynamicScope() const
+bool JSGlobalObject::isDynamicScope(bool&) const
 {
     return true;
 }
@@ -473,4 +456,21 @@ void JSGlobalObject::destroyJSGlobalObjectData(void* jsGlobalObjectData)
     delete static_cast<JSGlobalObjectData*>(jsGlobalObjectData);
 }
 
+DynamicGlobalObjectScope::DynamicGlobalObjectScope(CallFrame* callFrame, JSGlobalObject* dynamicGlobalObject)
+    : m_dynamicGlobalObjectSlot(callFrame->globalData().dynamicGlobalObject)
+    , m_savedDynamicGlobalObject(m_dynamicGlobalObjectSlot)
+{
+    if (!m_dynamicGlobalObjectSlot) {
+#if ENABLE(JIT)
+        if (ExecutablePool::underMemoryPressure())
+            callFrame->globalData().recompileAllJSFunctions();
+#endif
+        m_dynamicGlobalObjectSlot = dynamicGlobalObject;
+
+        // Reset the date cache between JS invocations to force the VM
+        // to observe time zone changes.
+        callFrame->globalData().resetDateCache();
+    }
+}
+
 } // namespace JSC