56 lines
1.5 KiB
C++
56 lines
1.5 KiB
C++
/*=============================================================================
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Copyright (c) 2001-2014 Joel de Guzman
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Distributed under the Boost Software License, Version 1.0. (See accompanying
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file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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=============================================================================*/
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#include "compiler.hpp"
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#include "vm.hpp"
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namespace client
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{
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void compiler::operator()(ast::nil) const
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{
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BOOST_ASSERT(0);
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}
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void compiler::operator()(unsigned int n) const
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{
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code.push_back(op_int);
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code.push_back(n);
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}
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void compiler::operator()(ast::operation const& x) const
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{
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boost::apply_visitor(*this, x.operand_);
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switch (x.operator_)
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{
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case '+': code.push_back(op_add); break;
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case '-': code.push_back(op_sub); break;
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case '*': code.push_back(op_mul); break;
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case '/': code.push_back(op_div); break;
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default: BOOST_ASSERT(0); break;
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}
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}
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void compiler::operator()(ast::signed_ const& x) const
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{
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boost::apply_visitor(*this, x.operand_);
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switch (x.sign)
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{
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case '-': code.push_back(op_neg); break;
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case '+': break;
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default: BOOST_ASSERT(0); break;
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}
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}
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void compiler::operator()(ast::expression const& x) const
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{
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boost::apply_visitor(*this, x.first);
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for (ast::operation const& oper : x.rest)
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{
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(*this)(oper);
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}
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}
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}
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