Source/JavaScriptCore/wasm/WasmModuleInformation.cpp

/*
 * 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.
 */

#include "config.h"
#include "WasmModuleInformation.h"

#if ENABLE(WEBASSEMBLY)

#include "WasmNameSection.h"
#include <wtf/SHA1.h>

namespace {
CString sha1(const Vector<uint8_t>& input)
{
    SHA1 hash;
    hash.addBytes(input);
    return hash.computeHexDigest();
}
}

namespace JSC { namespace Wasm {

ModuleInformation::ModuleInformation(Vector<uint8_t>&& sourceBytes)
    : source(WTFMove(sourceBytes))
    , hash(Options::useEagerWebAssemblyModuleHashing() ? std::make_optional(sha1(source)) : std::nullopt)
    , nameSection(new NameSection(hash))
{
}
ModuleInformation::~ModuleInformation() { }

} } // namespace JSC::Wasm

#endif // ENABLE(WEBASSEMBLY)