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LibWasm: Start implementing a basic WebAssembly binary format parser
This can currently parse a really simple module. Note that it cannot parse the DataCount section, and it's still missing almost all of the instructions. This commit also adds a 'wasm' test utility that tries to parse a given webassembly binary file. It currently does nothing but exit when the parse fails, but it's a start :^)
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Userland/Libraries/LibWasm/Constants.h
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37
Userland/Libraries/LibWasm/Constants.h
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/*
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* Copyright (c) 2021, Ali Mohammad Pur <mpfard@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <AK/Types.h>
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namespace Wasm::Constants {
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// Value
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static constexpr auto i32_tag = 0x7f;
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static constexpr auto i64_tag = 0x7e;
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static constexpr auto f32_tag = 0x7d;
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static constexpr auto f64_tag = 0x7c;
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static constexpr auto function_reference_tag = 0x70;
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static constexpr auto extern_reference_tag = 0x6f;
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// Function
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static constexpr auto function_signature_tag = 0x60;
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// Global
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static constexpr auto const_tag = 0x00;
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static constexpr auto var_tag = 0x01;
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// Block
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static constexpr auto empty_block_tag = 0x40;
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// Import section
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static constexpr auto extern_function_tag = 0x00;
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static constexpr auto extern_table_tag = 0x01;
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static constexpr auto extern_memory_tag = 0x02;
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static constexpr auto extern_global_tag = 0x03;
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}
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