webkitgtk-2.10.2webkitgtk-2.10.2

1 files changed, 126 insertions, 0 deletions

diff --git a/Source/JavaScriptCore/runtime/SetConstructor.cpp b/Source/JavaScriptCore/runtime/SetConstructor.cpp
new file mode 100644
index 000000000..fb97b6d9f
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+++ b/Source/JavaScriptCore/runtime/SetConstructor.cpp
@@ -0,0 +1,126 @@
+/*
+ * 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 "IteratorOperations.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, 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(ExecState* exec)
+{
+    return JSValue::encode(throwTypeError(exec, ASCIILiteral("Set cannot be called as a function")));
+}
+
+static EncodedJSValue JSC_HOST_CALL constructSet(ExecState* exec)
+{
+    JSGlobalObject* globalObject = asInternalFunction(exec->callee())->globalObject();
+    Structure* setStructure = globalObject->setStructure();
+    JSSet* set = JSSet::create(exec, setStructure);
+    JSValue iterable = exec->argument(0);
+    if (iterable.isUndefinedOrNull())
+        return JSValue::encode(set);
+
+    JSValue adderFunction = set->get(exec, exec->propertyNames().add);
+    if (exec->hadException())
+        return JSValue::encode(jsUndefined());
+
+    CallData adderFunctionCallData;
+    CallType adderFunctionCallType = getCallData(adderFunction, adderFunctionCallData);
+    if (adderFunctionCallType == CallTypeNone)
+        return JSValue::encode(throwTypeError(exec));
+
+    JSValue iteratorFunction = iterable.get(exec, exec->propertyNames().iteratorSymbol);
+    if (exec->hadException())
+        return JSValue::encode(jsUndefined());
+
+    CallData iteratorFunctionCallData;
+    CallType iteratorFunctionCallType = getCallData(iteratorFunction, iteratorFunctionCallData);
+    if (iteratorFunctionCallType == CallTypeNone)
+        return JSValue::encode(throwTypeError(exec));
+
+    ArgList iteratorFunctionArguments;
+    JSValue iterator = call(exec, iteratorFunction, iteratorFunctionCallType, iteratorFunctionCallData, iterable, iteratorFunctionArguments);
+    if (exec->hadException())
+        return JSValue::encode(jsUndefined());
+
+    if (!iterator.isObject())
+        return JSValue::encode(throwTypeError(exec));
+
+    while (true) {
+        JSValue next = iteratorStep(exec, iterator);
+        if (exec->hadException())
+            return JSValue::encode(jsUndefined());
+
+        if (next.isFalse())
+            return JSValue::encode(set);
+
+        JSValue nextValue = iteratorValue(exec, next);
+        if (exec->hadException())
+            return JSValue::encode(jsUndefined());
+
+        MarkedArgumentBuffer arguments;
+        arguments.append(nextValue);
+        call(exec, adderFunction, adderFunctionCallType, adderFunctionCallData, set, arguments);
+        if (exec->hadException()) {
+            iteratorClose(exec, iterator);
+            return JSValue::encode(jsUndefined());
+        }
+    }
+    RELEASE_ASSERT_NOT_REACHED();
+    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;
+}
+
+}