JavaScriptCore-521.tar.gz

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

diff --git a/runtime/ErrorConstructor.cpp b/runtime/ErrorConstructor.cpp
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+/*
+ *  Copyright (C) 1999-2000 Harri Porten (porten@kde.org)
+ *  Copyright (C) 2003, 2008 Apple Inc. All rights reserved.
+ *
+ *  This library is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU Lesser General Public
+ *  License as published by the Free Software Foundation; either
+ *  version 2 of the License, or (at your option) any later version.
+ *
+ *  This library is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ *  Lesser General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Lesser General Public
+ *  License along with this library; if not, write to the Free Software
+ *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ */
+
+#include "config.h"
+#include "ErrorConstructor.h"
+
+#include "ErrorPrototype.h"
+#include "JSGlobalObject.h"
+#include "JSString.h"
+
+namespace JSC {
+
+ASSERT_CLASS_FITS_IN_CELL(ErrorConstructor);
+
+ErrorConstructor::ErrorConstructor(ExecState* exec, PassRefPtr<Structure> structure, ErrorPrototype* errorPrototype)
+    : InternalFunction(&exec->globalData(), structure, Identifier(exec, errorPrototype->classInfo()->className))
+{
+    // ECMA 15.11.3.1 Error.prototype
+    putDirectWithoutTransition(exec->propertyNames().prototype, errorPrototype, DontEnum | DontDelete | ReadOnly);
+    putDirectWithoutTransition(exec->propertyNames().length, jsNumber(exec, 1), DontDelete | ReadOnly | DontEnum);
+}
+
+// ECMA 15.9.3
+ErrorInstance* constructError(ExecState* exec, const ArgList& args)
+{
+    ErrorInstance* obj = new (exec) ErrorInstance(exec->lexicalGlobalObject()->errorStructure());
+    if (!args.at(exec, 0).isUndefined())
+        obj->putDirect(exec->propertyNames().message, jsString(exec, args.at(exec, 0).toString(exec)));
+    return obj;
+}
+
+static JSObject* constructWithErrorConstructor(ExecState* exec, JSObject*, const ArgList& args)
+{
+    return constructError(exec, args);
+}
+
+ConstructType ErrorConstructor::getConstructData(ConstructData& constructData)
+{
+    constructData.native.function = constructWithErrorConstructor;
+    return ConstructTypeHost;
+}
+
+// ECMA 15.9.2
+static JSValuePtr callErrorConstructor(ExecState* exec, JSObject*, JSValuePtr, const ArgList& args)
+{
+    // "Error()" gives the sames result as "new Error()"
+    return constructError(exec, args);
+}
+
+CallType ErrorConstructor::getCallData(CallData& callData)
+{
+    callData.native.function = callErrorConstructor;
+    return CallTypeHost;
+}
+
+} // namespace JSC