/* This file is part of solidity. solidity is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. solidity is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with solidity. If not, see . */ // SPDX-License-Identifier: GPL-3.0 /** * Dialects for Wasm. */ #pragma once #include #include namespace solidity::yul { class YulString; using Type = YulString; struct FunctionCall; struct Object; /** * Yul dialect for Wasm as a backend. * * Builtin functions are a subset of the wasm instructions. * * There is a builtin function `i32.drop` that takes an i32, while `drop` takes i64. * */ struct WasmDialect: public Dialect { WasmDialect(); BuiltinFunction const* builtin(YulString _name) const override; BuiltinFunction const* discardFunction(YulString _type) const override; BuiltinFunction const* equalityFunction(YulString _type) const override; BuiltinFunction const* booleanNegationFunction() const override { return builtin("i32.eqz"_yulstring); } std::set fixedFunctionNames() const override { return {"main"_yulstring}; } static WasmDialect const& instance(); private: void addEthereumExternals(); void addFunction( std::string _name, std::vector _params, std::vector _returns, bool _movable = true, std::vector> _literalArguments = std::vector>{} ); std::map m_functions; }; }