/* * 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 "WasmIndexOrName.h" namespace JSC { namespace Wasm { IndexOrName::IndexOrName(Index index, std::pair<const Name*, RefPtr<NameSection>>&& name) { static_assert(sizeof(m_indexName.index) == sizeof(m_indexName.name), "bit-tagging depends on sizes being equal"); if ((index & allTags) || (bitwise_cast<Index>(name.first) & allTags)) *this = IndexOrName(); else { if (name.first) m_indexName.name = name.first; else m_indexName.index = indexTag | index; } m_nameSection = WTFMove(name.second); } String makeString(const IndexOrName& ion) { if (ion.isEmpty()) return "wasm-stub"_s; 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()); if (ion.isIndex()) return makeString(moduleName, ".wasm-function[", String::number(ion.m_indexName.index & ~IndexOrName::indexTag), ']'); return makeString(moduleName, ".wasm-function[", String(ion.m_indexName.name->data(), ion.m_indexName.name->size()), ']'); } } } // namespace JSC::Wasm