webkitgtk-2.16.5HEADwebkitgtk-2.16.5master

1 files changed, 87 insertions, 0 deletions

diff --git a/Source/JavaScriptCore/runtime/ProxyRevoke.cpp b/Source/JavaScriptCore/runtime/ProxyRevoke.cpp
new file mode 100644
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+++ b/Source/JavaScriptCore/runtime/ProxyRevoke.cpp
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+/*
+ * Copyright (C) 2016 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 "ProxyRevoke.h"
+
+#include "JSCInlines.h"
+#include "ProxyObject.h"
+
+namespace JSC {
+
+STATIC_ASSERT_IS_TRIVIALLY_DESTRUCTIBLE(ProxyRevoke);
+
+const ClassInfo ProxyRevoke::s_info = { "ProxyRevoke", &Base::s_info, 0, CREATE_METHOD_TABLE(ProxyRevoke) };
+
+ProxyRevoke* ProxyRevoke::create(VM& vm, Structure* structure, ProxyObject* proxy)
+{
+    ProxyRevoke* revoke = new (NotNull, allocateCell<ProxyRevoke>(vm.heap)) ProxyRevoke(vm, structure);
+    revoke->finishCreation(vm, "revoke", proxy);
+    return revoke;
+}
+
+ProxyRevoke::ProxyRevoke(VM& vm, Structure* structure)
+    : Base(vm, structure)
+{
+}
+
+void ProxyRevoke::finishCreation(VM& vm, const char* name, ProxyObject* proxy)
+{
+    Base::finishCreation(vm, String(name));
+    m_proxy.set(vm, this, proxy);
+
+    putDirect(vm, vm.propertyNames->length, jsNumber(0), ReadOnly | DontDelete | DontEnum);
+}
+
+static EncodedJSValue JSC_HOST_CALL performProxyRevoke(ExecState* exec)
+{
+    ProxyRevoke* proxyRevoke = jsCast<ProxyRevoke*>(exec->jsCallee());
+    JSValue proxyValue = proxyRevoke->proxy();
+    if (proxyValue.isNull())
+        return JSValue::encode(jsUndefined());
+
+    ProxyObject* proxy = jsCast<ProxyObject*>(proxyValue);
+    VM& vm = exec->vm();
+    proxy->revoke(vm);
+    proxyRevoke->setProxyToNull(vm);
+    return JSValue::encode(jsUndefined());
+}
+
+CallType ProxyRevoke::getCallData(JSCell*, CallData& callData)
+{
+    callData.native.function = performProxyRevoke;
+    return CallType::Host;
+}
+
+void ProxyRevoke::visitChildren(JSCell* cell, SlotVisitor& visitor)
+{
+    ProxyRevoke* thisObject = jsCast<ProxyRevoke*>(cell);
+    ASSERT_GC_OBJECT_INHERITS(thisObject, info());
+    Base::visitChildren(thisObject, visitor);
+
+    visitor.append(thisObject->m_proxy);
+}
+
+} // namespace JSC