webkitgtk-2.16.5HEADwebkitgtk-2.16.5master

1 files changed, 96 insertions, 0 deletions

diff --git a/Source/WebCore/domjit/DOMJITCheckDOM.h b/Source/WebCore/domjit/DOMJITCheckDOM.h
new file mode 100644
index 000000000..1ba310631
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+++ b/Source/WebCore/domjit/DOMJITCheckDOM.h
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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.
+ *
+ */
+
+#pragma once
+
+#include "DOMJITHelpers.h"
+
+#if ENABLE(JIT)
+
+#include "Document.h"
+#include "Element.h"
+#include "Event.h"
+#include "Node.h"
+
+namespace WebCore { namespace DOMJIT {
+
+template<typename DOMInterface>
+struct TypeChecker {
+};
+
+template<>
+struct TypeChecker<Node> {
+    static CCallHelpers::Jump branchIfFail(CCallHelpers& jit, GPRReg dom)
+    {
+        return DOMJIT::branchIfNotNode(jit, dom);
+    }
+};
+
+template<>
+struct TypeChecker<Document> {
+    static CCallHelpers::Jump branchIfFail(CCallHelpers& jit, GPRReg dom)
+    {
+        return DOMJIT::branchIfNotDocumentWrapper(jit, dom);
+    }
+};
+
+template<>
+struct TypeChecker<DocumentFragment> {
+    static CCallHelpers::Jump branchIfFail(CCallHelpers& jit, GPRReg dom)
+    {
+        return DOMJIT::branchIfNotDocumentFragment(jit, dom);
+    }
+};
+
+template<>
+struct TypeChecker<Event> {
+    static CCallHelpers::Jump branchIfFail(CCallHelpers& jit, GPRReg dom)
+    {
+        return DOMJIT::branchIfNotEvent(jit, dom);
+    }
+};
+
+template<>
+struct TypeChecker<Element> {
+    static CCallHelpers::Jump branchIfFail(CCallHelpers& jit, GPRReg dom)
+    {
+        return DOMJIT::branchIfNotElement(jit, dom);
+    }
+};
+
+template<typename DOMInterface>
+Ref<JSC::DOMJIT::Patchpoint> checkDOM()
+{
+    Ref<JSC::DOMJIT::Patchpoint> patchpoint = JSC::DOMJIT::Patchpoint::create();
+    patchpoint->setGenerator([=](CCallHelpers& jit, JSC::DOMJIT::PatchpointParams& params) {
+        return TypeChecker<DOMInterface>::branchIfFail(jit, params[0].gpr());
+    });
+    return patchpoint;
+}
+
+} }
+
+#endif