mirror of
https://github.com/darlinghq/darling-JavaScriptCore.git
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57 lines
2.5 KiB
C++
57 lines
2.5 KiB
C++
/*
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* Copyright (C) 2017 Apple Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "config.h"
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#include "WasmIndexOrName.h"
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namespace JSC { namespace Wasm {
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IndexOrName::IndexOrName(Index index, std::pair<const Name*, RefPtr<NameSection>>&& name)
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{
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static_assert(sizeof(m_indexName.index) == sizeof(m_indexName.name), "bit-tagging depends on sizes being equal");
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if ((index & allTags) || (bitwise_cast<Index>(name.first) & allTags))
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*this = IndexOrName();
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else {
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if (name.first)
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m_indexName.name = name.first;
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else
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m_indexName.index = indexTag | index;
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}
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m_nameSection = WTFMove(name.second);
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}
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String makeString(const IndexOrName& ion)
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{
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if (ion.isEmpty())
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return "wasm-stub"_s;
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const String moduleName = ion.nameSection()->moduleName.size() ? String(ion.nameSection()->moduleName.data(), ion.nameSection()->moduleName.size()) : String(ion.nameSection()->moduleHash.data(), ion.nameSection()->moduleHash.size());
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if (ion.isIndex())
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return makeString(moduleName, ".wasm-function[", String::number(ion.m_indexName.index & ~IndexOrName::indexTag), ']');
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return makeString(moduleName, ".wasm-function[", String(ion.m_indexName.name->data(), ion.m_indexName.name->size()), ']');
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}
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} } // namespace JSC::Wasm
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