webkitgtk-2.16.5HEADwebkitgtk-2.16.5master

1 files changed, 84 insertions, 0 deletions

diff --git a/Source/JavaScriptCore/bytecode/GetterSetterAccessCase.h b/Source/JavaScriptCore/bytecode/GetterSetterAccessCase.h
new file mode 100644
index 000000000..06192dac2
--- /dev/null
+++ b/Source/JavaScriptCore/bytecode/GetterSetterAccessCase.h
@@ -0,0 +1,84 @@
+/*
+ * Copyright (C) 2017 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
+
+#if ENABLE(JIT)
+
+#include "ProxyableAccessCase.h"
+
+namespace JSC {
+
+class GetterSetterAccessCase : public ProxyableAccessCase {
+public:
+    typedef ProxyableAccessCase Base;
+    friend class AccessCase;
+
+    // This can return null if it hasn't been generated yet. That's
+    // actually somewhat likely because of how we do buffering of new cases.
+    CallLinkInfo* callLinkInfo() const { return m_callLinkInfo.get(); }
+    JSObject* customSlotBase() const { return m_customSlotBase.get(); }
+    DOMJIT::GetterSetter* domJIT() const { return m_domJIT; }
+
+    JSObject* alternateBase() const override;
+
+    void emitDOMJITGetter(AccessGenerationState&, GPRReg baseForGetGPR);
+
+    static std::unique_ptr<AccessCase> create(
+        VM&, JSCell* owner, AccessType, PropertyOffset, Structure*,
+        const ObjectPropertyConditionSet& = ObjectPropertyConditionSet(),
+        bool viaProxy = false,
+        WatchpointSet* additionalSet = nullptr,
+        PropertySlot::GetValueFunc = nullptr,
+        JSObject* customSlotBase = nullptr,
+        DOMJIT::GetterSetter* = nullptr);
+
+    static std::unique_ptr<AccessCase> create(VM&, JSCell* owner, AccessType, Structure*, PropertyOffset,
+        const ObjectPropertyConditionSet&, PutPropertySlot::PutValueFunc = nullptr,
+        JSObject* customSlotBase = nullptr);
+
+    void dumpImpl(PrintStream&, CommaPrinter&) const override;
+    std::unique_ptr<AccessCase> clone() const override;
+
+    ~GetterSetterAccessCase();
+
+private:
+    GetterSetterAccessCase(VM&, JSCell*, AccessType, PropertyOffset, Structure*, const ObjectPropertyConditionSet&, bool viaProxy, WatchpointSet* additionalSet, JSObject* customSlotBase);
+
+    GetterSetterAccessCase(const GetterSetterAccessCase&);
+
+    WriteBarrier<JSObject> m_customSlotBase;
+    std::unique_ptr<CallLinkInfo> m_callLinkInfo;
+    union {
+        PutPropertySlot::PutValueFunc setter;
+        PropertySlot::GetValueFunc getter;
+        void* opaque;
+    } m_customAccessor;
+    DOMJIT::GetterSetter* m_domJIT;
+};
+
+} // namespace JSC
+
+#endif // ENABLE(JIT)