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diff --git a/Source/JavaScriptCore/wasm/js/JSWebAssemblyTable.h b/Source/JavaScriptCore/wasm/js/JSWebAssemblyTable.h
new file mode 100644
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+++ b/Source/JavaScriptCore/wasm/js/JSWebAssemblyTable.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 "JSDestructibleObject.h"
+#include "JSObject.h"
+#include "WebAssemblyFunction.h"
+#include <wtf/MallocPtr.h>
+
+namespace JSC {
+
+namespace Wasm {
+struct CallableFunction;
+}
+
+class JSWebAssemblyTable : public JSDestructibleObject {
+public:
+    typedef JSDestructibleObject Base;
+
+    static JSWebAssemblyTable* create(ExecState*, VM&, Structure*, uint32_t initial, std::optional<uint32_t> maximum);
+    static Structure* createStructure(VM&, JSGlobalObject*, JSValue);
+
+    DECLARE_INFO;
+
+    std::optional<uint32_t> maximum() const { return m_maximum; }
+    uint32_t size() const { return m_size; }
+    bool grow(uint32_t newSize) WARN_UNUSED_RETURN;
+    WebAssemblyFunction* getFunction(uint32_t index)
+    {
+        RELEASE_ASSERT(index < m_size);
+        return m_jsFunctions.get()[index].get();
+    }
+    void clearFunction(uint32_t index);
+    void setFunction(VM&, uint32_t index, WebAssemblyFunction*);
+
+    static ptrdiff_t offsetOfSize() { return OBJECT_OFFSETOF(JSWebAssemblyTable, m_size); }
+    static ptrdiff_t offsetOfFunctions() { return OBJECT_OFFSETOF(JSWebAssemblyTable, m_functions); }
+
+    static bool isValidSize(uint32_t size)
+    {
+        // This tops out at ~384 MB worth of data in this class.
+        return size < (1 << 24);
+    }
+
+private:
+    JSWebAssemblyTable(VM&, Structure*, uint32_t initial, std::optional<uint32_t> maximum);
+    void finishCreation(VM&);
+    static void destroy(JSCell*);
+    static void visitChildren(JSCell*, SlotVisitor&);
+
+    MallocPtr<Wasm::CallableFunction> m_functions;
+    MallocPtr<WriteBarrier<WebAssemblyFunction>> m_jsFunctions;
+    std::optional<uint32_t> m_maximum;
+    uint32_t m_size;
+};
+
+} // namespace JSC
+
+#endif // ENABLE(WEBASSEMBLY)