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Implement code generation

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Jonathan Müller 2017-03-29 19:51:02 +02:00
commit d18070a799
29 changed files with 2522 additions and 280 deletions
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src/cpp_expression.cpp Normal file
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// Copyright (C) 2017 Jonathan Müller <jonathanmueller.dev@gmail.com>
// This file is subject to the license terms in the LICENSE file
// found in the top-level directory of this distribution.
#include <cppast/cpp_expression.hpp>
using namespace cppast;
namespace
{
void write_literal(code_generator::output& output, const cpp_literal_expression& expr)
{
auto type_kind = cpp_void;
if (expr.type().kind() == cpp_type_kind::builtin_t)
type_kind = static_cast<const cpp_builtin_type&>(expr.type()).builtin_type_kind();
else if (expr.type().kind() == cpp_type_kind::pointer_t)
{
auto& pointee = static_cast<const cpp_pointer_type&>(expr.type()).pointee();
if (pointee.kind() == cpp_type_kind::builtin_t)
{
auto& builtin_pointee = static_cast<const cpp_builtin_type&>(pointee);
if (builtin_pointee.builtin_type_kind() == cpp_char
|| builtin_pointee.builtin_type_kind() == cpp_wchar
|| builtin_pointee.builtin_type_kind() == cpp_char16
|| builtin_pointee.builtin_type_kind() == cpp_char32)
// pointer to char aka string
type_kind = builtin_pointee.builtin_type_kind();
}
}
switch (type_kind)
{
case cpp_void:
output << token_seq(expr.value());
break;
case cpp_bool:
output << keyword(expr.value());
break;
case cpp_uchar:
case cpp_ushort:
case cpp_uint:
case cpp_ulong:
case cpp_ulonglong:
case cpp_uint128:
case cpp_schar:
case cpp_short:
case cpp_int:
case cpp_long:
case cpp_longlong:
case cpp_int128:
output << int_literal(expr.value());
break;
case cpp_float:
case cpp_double:
case cpp_longdouble:
case cpp_float128:
output << float_literal(expr.value());
break;
case cpp_char:
case cpp_wchar:
case cpp_char16:
case cpp_char32:
output << string_literal(expr.value());
break;
case cpp_nullptr:
output << keyword(expr.value());
break;
}
}
void write_unexposed(code_generator::output& output, const cpp_unexposed_expression& expr)
{
output << token_seq(expr.expression());
}
}
void detail::write_expression(code_generator::output& output, const cpp_expression& expr)
{
switch (expr.kind())
{
case cpp_expression_kind::literal_t:
write_literal(output, static_cast<const cpp_literal_expression&>(expr));
break;
case cpp_expression_kind::unexposed_t:
write_unexposed(output, static_cast<const cpp_unexposed_expression&>(expr));
break;
}
}