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// Copyright 2018 Peter Dimov.
// Copyrigth 2022 Jeff Trull.
//
// Distributed under the Boost Software License, Version 1.0.
//
// See accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt
// Most test coverage of Wave happens with the "eat_whitespace" hooks in effect
// This adds some coverage for Wave with the (minimal) default hooks
#include <boost/wave.hpp>
#include <boost/wave/token_ids.hpp>
#include <boost/wave/cpplexer/cpp_lex_token.hpp>
#include <boost/wave/cpplexer/cpp_lex_iterator.hpp>
#include <iostream>
#include <vector>
#include <utility>
#include <string>
int main()
{
std::string input(
// check LINE directives after conditional (false) sections
"#if 0\n"
"int aa;\n"
"#endif\n"
"char c1;\n" // #LINE 4
"#ifdef FOO\n"
"int bb;\n"
"#endif\n"
"char c2;\n" // #LINE 8
"#ifndef __FILE__\n"
"int cc;\n"
"#endif\n"
"char c3;\n" // #LINE 12
);
using namespace boost::wave;
typedef std::pair<token_id, char const*> tokdata_type;
typedef std::vector<tokdata_type> tokdata_list_type;
tokdata_list_type expected{
{T_PP_LINE, "#line"},
{T_SPACE, " "},
{T_INTLIT, "4"},
{T_SPACE, " "},
{T_STRINGLIT, nullptr}, // exact filepath is not interesting
{T_NEWLINE, "\n"},
{T_CHAR, "char"},
{T_SPACE, " "},
{T_IDENTIFIER, "c1"},
{T_SEMICOLON, ";"},
{T_NEWLINE, "\n"},
{T_PP_LINE, "#line"},
{T_SPACE, " "},
{T_INTLIT, "8"},
{T_SPACE, " "},
{T_STRINGLIT, nullptr},
{T_NEWLINE, "\n"},
{T_CHAR, "char"},
{T_SPACE, " "},
{T_IDENTIFIER, "c2"},
{T_SEMICOLON, ";"},
{T_NEWLINE, "\n"},
{T_PP_LINE, "#line"},
{T_SPACE, " "},
{T_INTLIT, "12"},
{T_SPACE, " "},
{T_STRINGLIT, nullptr},
{T_NEWLINE, "\n"},
{T_CHAR, "char"},
{T_SPACE, " "},
{T_IDENTIFIER, "c3"},
{T_SEMICOLON, ";"},
{T_NEWLINE, "\n"},
{T_EOF, nullptr}
};
try
{
typedef cpplexer::lex_token<> token_type;
typedef cpplexer::lex_iterator<token_type> lex_iterator_type;
typedef context<std::string::iterator, lex_iterator_type> context_type;
context_type ctx( input.begin(), input.end(), "input.cpp" );
tokdata_list_type::const_iterator first_expect = expected.begin();
tokdata_list_type::const_iterator last_expect = expected.end();
for( context_type::iterator_type first = ctx.begin(), last = ctx.end(); first != last; ++first, ++first_expect )
{
if (first_expect == last_expect)
{
std::cerr << "more tokens were produced than expected\n";
return 3;
}
if (token_id(*first) != first_expect->first)
{
std::cerr << "expected " << get_token_name(first_expect->first) << ", got " << get_token_name(token_id(*first)) << "\n";
return 3;
}
if ((first_expect->second != nullptr) && (first_expect->second != first->get_value()))
{
std::cerr << "expected token value " << first_expect->second << ", got " << first->get_value() << "\n";
return 3;
}
std::cout << first->get_value();
}
if (first_expect != last_expect)
{
std::cerr << "fewer tokens were produced than expected\n";
return 3;
}
return 0;
}
catch( cpp_exception const & x )
{
std::cerr << x.file_name() << "(" << x.line_no() << "): " << x.description() << std::endl;
return 1;
}
catch( std::exception const & x )
{
std::cerr << "Exception: " << x.what() << std::endl;
return 2;
}
}
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