webkitgtk-2.16.5HEADwebkitgtk-2.16.5master

1 files changed, 116 insertions, 0 deletions

diff --git a/Source/JavaScriptCore/wasm/WasmPlan.h b/Source/JavaScriptCore/wasm/WasmPlan.h
new file mode 100644
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+++ b/Source/JavaScriptCore/wasm/WasmPlan.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
+
+#if ENABLE(WEBASSEMBLY)
+
+#include "CompilationResult.h"
+#include "VM.h"
+#include "WasmB3IRGenerator.h"
+#include "WasmFormat.h"
+#include <wtf/Bag.h>
+#include <wtf/ThreadSafeRefCounted.h>
+#include <wtf/Vector.h>
+
+namespace JSC {
+
+class CallLinkInfo;
+class JSGlobalObject;
+class JSWebAssemblyCallee;
+
+namespace Wasm {
+
+class Plan {
+public:
+    JS_EXPORT_PRIVATE Plan(VM*, Vector<uint8_t>);
+    JS_EXPORT_PRIVATE Plan(VM*, const uint8_t*, size_t);
+    JS_EXPORT_PRIVATE ~Plan();
+
+    bool parseAndValidateModule();
+
+    JS_EXPORT_PRIVATE void run();
+
+    JS_EXPORT_PRIVATE void initializeCallees(JSGlobalObject*, std::function<void(unsigned, JSWebAssemblyCallee*, JSWebAssemblyCallee*)>);
+
+    bool WARN_UNUSED_RETURN failed() const { return m_failed; }
+    const String& errorMessage() const
+    {
+        RELEASE_ASSERT(failed());
+        return m_errorMessage;
+    }
+
+    Vector<Export>& exports() const
+    {
+        RELEASE_ASSERT(!failed());
+        return m_moduleInformation->exports;
+    }
+
+    size_t internalFunctionCount() const
+    {
+        RELEASE_ASSERT(!failed());
+        return m_wasmInternalFunctions.size();
+    }
+
+    std::unique_ptr<ModuleInformation>&& takeModuleInformation()
+    {
+        RELEASE_ASSERT(!failed());
+        return WTFMove(m_moduleInformation);
+    }
+
+    Bag<CallLinkInfo>&& takeCallLinkInfos()
+    {
+        RELEASE_ASSERT(!failed());
+        return WTFMove(m_callLinkInfos);
+    }
+
+    Vector<WasmExitStubs>&& takeWasmExitStubs()
+    {
+        RELEASE_ASSERT(!failed());
+        return WTFMove(m_wasmExitStubs);
+    }
+
+private:
+    std::unique_ptr<ModuleInformation> m_moduleInformation;
+    Vector<FunctionLocationInBinary> m_functionLocationInBinary;
+    Vector<SignatureIndex> m_moduleSignatureIndicesToUniquedSignatureIndices;
+    Bag<CallLinkInfo> m_callLinkInfos;
+    Vector<WasmExitStubs> m_wasmExitStubs;
+    Vector<std::unique_ptr<WasmInternalFunction>> m_wasmInternalFunctions;
+    Vector<CompilationContext> m_compilationContexts;
+
+    VM* m_vm;
+    Vector<Vector<UnlinkedWasmToWasmCall>> m_unlinkedWasmToWasmCalls;
+    const uint8_t* m_source;
+    const size_t m_sourceLength;
+    bool m_failed { true };
+    String m_errorMessage;
+    uint32_t m_currentIndex;
+    Lock m_lock;
+};
+
+} } // namespace JSC::Wasm
+
+#endif // ENABLE(WEBASSEMBLY)