JavaScriptCore-7600.1.4.9.tar.gz

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

diff --git a/runtime/SetConstructor.cpp b/runtime/SetConstructor.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 "SetConstructor.h"
+
+#include "Error.h"
+#include "JSCJSValueInlines.h"
+#include "JSCellInlines.h"
+#include "JSGlobalObject.h"
+#include "JSSet.h"
+#include "MapData.h"
+#include "SetPrototype.h"
+#include "StructureInlines.h"
+
+namespace JSC {
+
+const ClassInfo SetConstructor::s_info = { "Function", &Base::s_info, 0, 0, CREATE_METHOD_TABLE(SetConstructor) };
+
+void SetConstructor::finishCreation(VM& vm, SetPrototype* setPrototype)
+{
+    Base::finishCreation(vm, setPrototype->classInfo()->className);
+    putDirectWithoutTransition(vm, vm.propertyNames->prototype, setPrototype, DontEnum | DontDelete | ReadOnly);
+    putDirectWithoutTransition(vm, vm.propertyNames->length, jsNumber(0), ReadOnly | DontEnum | DontDelete);
+}
+
+static EncodedJSValue JSC_HOST_CALL callSet(CallFrame* callFrame)
+{
+    // Until we have iterators we throw if we've been given
+    // any arguments that could require us to throw.
+    if (!callFrame->argument(0).isUndefinedOrNull())
+        return JSValue::encode(throwTypeError(callFrame, ASCIILiteral("Set does not accept arguments when called as a function")));
+    if (!callFrame->argument(1).isUndefined())
+        return throwVMError(callFrame, createRangeError(callFrame, WTF::ASCIILiteral("Invalid comparator function")));
+
+    JSGlobalObject* globalObject = asInternalFunction(callFrame->callee())->globalObject();
+    Structure* setStructure = globalObject->setStructure();
+    return JSValue::encode(JSSet::create(callFrame, setStructure));
+}
+
+static EncodedJSValue JSC_HOST_CALL constructSet(CallFrame* callFrame)
+{
+    JSGlobalObject* globalObject = asInternalFunction(callFrame->callee())->globalObject();
+    Structure* setStructure = globalObject->setStructure();
+    JSSet* set = JSSet::create(callFrame, setStructure);
+    MapData* mapData = set->mapData();
+    size_t count = callFrame->argumentCount();
+    for (size_t i = 0; i < count; i++) {
+        JSValue item = callFrame->uncheckedArgument(i);
+        mapData->set(callFrame, item, item);
+    }
+    return JSValue::encode(set);
+}
+
+ConstructType SetConstructor::getConstructData(JSCell*, ConstructData& constructData)
+{
+    constructData.native.function = constructSet;
+    return ConstructTypeHost;
+}
+
+CallType SetConstructor::getCallData(JSCell*, CallData& callData)
+{
+    callData.native.function = callSet;
+    return CallTypeHost;
+}
+
+}