Source/JavaScriptCore/wasm/WasmMemoryMode.h

/*
 * Copyright (C) 2017-2021 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 "JSExportMacros.h"

namespace JSC { namespace Wasm {

// FIXME: We should support other modes. see: https://bugs.webkit.org/show_bug.cgi?id=162693
enum class MemoryMode : uint8_t {
    BoundsChecking,
#if ENABLE(WEBASSEMBLY_SIGNALING_MEMORY)
    Signaling
#endif
};

static constexpr size_t NumberOfMemoryModes = 2;
JS_EXPORT_PRIVATE const char* makeString(MemoryMode);

enum class MemorySharingMode : uint8_t {
    Default,
    Shared,
};

JS_EXPORT_PRIVATE const char* makeString(MemorySharingMode);

} } // namespace JSC::Wasm

namespace WTF {

class PrintStream;
void printInternal(PrintStream&, JSC::Wasm::MemoryMode);
void printInternal(PrintStream&, JSC::Wasm::MemorySharingMode);

} // namespace WTF

#endif // ENABLE(WEBASSEMBLY)