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authorAli Mohammad Pur <ali.mpfard@gmail.com>2021-04-26 12:48:13 +0430
committerAndreas Kling <kling@serenityos.org>2021-05-08 22:14:39 +0200
commitaa4d8d26b971f18921a1a6a368ef15fd5b8e2457 (patch)
tree9f176cf97261eb6b6b14ccedab894331077d0a7c /Userland/Libraries/LibWasm/Constants.h
parent56a6d7924eeeb38df065494c9f3a9b476225abf7 (diff)
downloadserenity-aa4d8d26b971f18921a1a6a368ef15fd5b8e2457.zip
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 :^)
Diffstat (limited to 'Userland/Libraries/LibWasm/Constants.h')
-rw-r--r--Userland/Libraries/LibWasm/Constants.h37
1 files changed, 37 insertions, 0 deletions
diff --git a/Userland/Libraries/LibWasm/Constants.h b/Userland/Libraries/LibWasm/Constants.h
new file mode 100644
index 0000000000..9d5f346fc6
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+++ b/Userland/Libraries/LibWasm/Constants.h
@@ -0,0 +1,37 @@
+/*
+ * Copyright (c) 2021, Ali Mohammad Pur <mpfard@serenityos.org>
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#pragma once
+
+#include <AK/Types.h>
+
+namespace Wasm::Constants {
+
+// Value
+static constexpr auto i32_tag = 0x7f;
+static constexpr auto i64_tag = 0x7e;
+static constexpr auto f32_tag = 0x7d;
+static constexpr auto f64_tag = 0x7c;
+static constexpr auto function_reference_tag = 0x70;
+static constexpr auto extern_reference_tag = 0x6f;
+
+// Function
+static constexpr auto function_signature_tag = 0x60;
+
+// Global
+static constexpr auto const_tag = 0x00;
+static constexpr auto var_tag = 0x01;
+
+// Block
+static constexpr auto empty_block_tag = 0x40;
+
+// Import section
+static constexpr auto extern_function_tag = 0x00;
+static constexpr auto extern_table_tag = 0x01;
+static constexpr auto extern_memory_tag = 0x02;
+static constexpr auto extern_global_tag = 0x03;
+
+}