JavaScriptCore-7600.1.4.9.tar.gz

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

diff --git a/runtime/MapConstructor.cpp b/runtime/MapConstructor.cpp
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+/*
+ * Copyright (C) 2013 Apple Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "config.h"
+#include "MapConstructor.h"
+
+#include "Error.h"
+#include "JSCJSValueInlines.h"
+#include "JSCellInlines.h"
+#include "JSGlobalObject.h"
+#include "JSMap.h"
+#include "MapPrototype.h"
+#include "StructureInlines.h"
+
+namespace JSC {
+
+const ClassInfo MapConstructor::s_info = { "Function", &Base::s_info, 0, 0, CREATE_METHOD_TABLE(MapConstructor) };
+
+void MapConstructor::finishCreation(VM& vm, MapPrototype* mapPrototype)
+{
+    Base::finishCreation(vm, mapPrototype->classInfo()->className);
+    putDirectWithoutTransition(vm, vm.propertyNames->prototype, mapPrototype, DontEnum | DontDelete | ReadOnly);
+    putDirectWithoutTransition(vm, vm.propertyNames->length, jsNumber(0), ReadOnly | DontEnum | DontDelete);
+}
+
+static EncodedJSValue JSC_HOST_CALL constructMap(ExecState* exec)
+{
+    // Until we have iterators we throw if we've been given
+    // any arguments that could require us to throw.
+    if (!exec->argument(0).isUndefinedOrNull())
+        return JSValue::encode(throwTypeError(exec, ASCIILiteral("Map constructor does not accept arguments")));
+    if (!exec->argument(1).isUndefined())
+        return throwVMError(exec, createRangeError(exec, WTF::ASCIILiteral("Invalid comparator function")));
+
+    JSGlobalObject* globalObject = asInternalFunction(exec->callee())->globalObject();
+    Structure* mapStructure = globalObject->mapStructure();
+    return JSValue::encode(JSMap::create(exec, mapStructure));
+}
+
+ConstructType MapConstructor::getConstructData(JSCell*, ConstructData& constructData)
+{
+    constructData.native.function = constructMap;
+    return ConstructTypeHost;
+}
+
+CallType MapConstructor::getCallData(JSCell*, CallData& callData)
+{
+    callData.native.function = constructMap;
+    return CallTypeHost;
+}
+
+}