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Diffstat (limited to 'Source/JavaScriptCore/wasm/WasmModuleParser.h')
-rw-r--r-- | Source/JavaScriptCore/wasm/WasmModuleParser.h | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/Source/JavaScriptCore/wasm/WasmModuleParser.h b/Source/JavaScriptCore/wasm/WasmModuleParser.h new file mode 100644 index 000000000..41b57fc82 --- /dev/null +++ b/Source/JavaScriptCore/wasm/WasmModuleParser.h @@ -0,0 +1,76 @@ +/* + * 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 "WasmFormat.h" +#include "WasmOps.h" +#include "WasmParser.h" +#include <wtf/Vector.h> + +namespace JSC { namespace Wasm { + +struct ModuleParserResult { + std::unique_ptr<ModuleInformation> module; + Vector<FunctionLocationInBinary> functionLocationInBinary; + Vector<SignatureIndex> moduleSignatureIndicesToUniquedSignatureIndices; +}; + +class ModuleParser : public Parser<ModuleParserResult> { +public: + + ModuleParser(VM* vm, const uint8_t* sourceBuffer, size_t sourceLength) + : Parser(vm, sourceBuffer, sourceLength) + { + } + ModuleParser(VM* vm, const Vector<uint8_t>& sourceBuffer) + : ModuleParser(vm, sourceBuffer.data(), sourceBuffer.size()) + { + } + + Result WARN_UNUSED_RETURN parse(); + +private: + +#define WASM_SECTION_DECLARE_PARSER(NAME, ID, DESCRIPTION) PartialResult WARN_UNUSED_RETURN parse ## NAME(); + FOR_EACH_WASM_SECTION(WASM_SECTION_DECLARE_PARSER) +#undef WASM_SECTION_DECLARE_PARSER + + PartialResult WARN_UNUSED_RETURN parseCustom(uint32_t); + PartialResult WARN_UNUSED_RETURN parseGlobalType(Global&); + PartialResult WARN_UNUSED_RETURN parseMemoryHelper(bool isImport); + PartialResult WARN_UNUSED_RETURN parseTableHelper(bool isImport); + PartialResult WARN_UNUSED_RETURN parseResizableLimits(uint32_t& initial, std::optional<uint32_t>& maximum); + PartialResult WARN_UNUSED_RETURN parseInitExpr(uint8_t&, uint64_t&, Type& initExprType); + + ModuleParserResult m_result; + bool m_hasTable { false }; +}; + +} } // namespace JSC::Wasm + +#endif // ENABLE(WEBASSEMBLY) |