211 lines
8.6 KiB
C++
211 lines
8.6 KiB
C++
|
/*=============================================================================
|
||
|
|
Boost.Wave: A Standard compliant C++ preprocessor library
|
||
|
|
|
||
|
|
http://www.boost.org/
|
||
|
|
|
||
|
|
Copyright (c) 2001-2012 Hartmut Kaiser. 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)
|
||
|
|
=============================================================================*/
|
||
|
|
|
||
|
|
#if !defined(INTERPRET_PRAGMA_HPP_B1F2315E_C5CE_4ED1_A343_0EF548B7942A_INCLUDED)
|
||
|
|
#define INTERPRET_PRAGMA_HPP_B1F2315E_C5CE_4ED1_A343_0EF548B7942A_INCLUDED
|
||
|
|
|
||
|
|
#include <string>
|
||
|
|
#include <list>
|
||
|
|
|
||
|
|
#include <boost/spirit/include/classic_core.hpp>
|
||
|
|
#include <boost/spirit/include/classic_assign_actor.hpp>
|
||
|
|
#include <boost/spirit/include/classic_push_back_actor.hpp>
|
||
|
|
#include <boost/spirit/include/classic_confix.hpp>
|
||
|
|
|
||
|
|
#include <boost/wave/wave_config.hpp>
|
||
|
|
|
||
|
|
#include <boost/wave/util/pattern_parser.hpp>
|
||
|
|
#include <boost/wave/util/macro_helpers.hpp>
|
||
|
|
|
||
|
|
#include <boost/wave/token_ids.hpp>
|
||
|
|
#include <boost/wave/cpp_exceptions.hpp>
|
||
|
|
#include <boost/wave/cpp_iteration_context.hpp>
|
||
|
|
#include <boost/wave/language_support.hpp>
|
||
|
|
|
||
|
|
#if !defined(spirit_append_actor)
|
||
|
|
#define spirit_append_actor(actor) boost::spirit::classic::push_back_a(actor)
|
||
|
|
#define spirit_assign_actor(actor) boost::spirit::classic::assign_a(actor)
|
||
|
|
#endif // !defined(spirit_append_actor)
|
||
|
|
|
||
|
|
// this must occur after all of the includes and before any code appears
|
||
|
|
#ifdef BOOST_HAS_ABI_HEADERS
|
||
|
|
#include BOOST_ABI_PREFIX
|
||
|
|
#endif
|
||
|
|
|
||
|
|
///////////////////////////////////////////////////////////////////////////////
|
||
|
|
namespace boost {
|
||
|
|
namespace wave {
|
||
|
|
namespace util {
|
||
|
|
|
||
|
|
///////////////////////////////////////////////////////////////////////////////
|
||
|
|
//
|
||
|
|
// The function interpret_pragma interprets the given token sequence as the
|
||
|
|
// body of a #pragma directive (or parameter to the _Pragma operator) and
|
||
|
|
// executes the actions associated with recognized Wave specific options.
|
||
|
|
//
|
||
|
|
///////////////////////////////////////////////////////////////////////////////
|
||
|
|
template <typename ContextT, typename IteratorT, typename ContainerT>
|
||
|
|
inline bool
|
||
|
|
interpret_pragma(ContextT &ctx, typename ContextT::token_type const &act_token,
|
||
|
|
IteratorT it, IteratorT const &end, ContainerT &pending)
|
||
|
|
{
|
||
|
|
typedef typename ContextT::token_type token_type;
|
||
|
|
typedef typename token_type::string_type string_type;
|
||
|
|
|
||
|
|
using namespace cpplexer;
|
||
|
|
if (T_IDENTIFIER == token_id(*it)) {
|
||
|
|
// check for pragma wave ...
|
||
|
|
if ((*it).get_value() == BOOST_WAVE_PRAGMA_KEYWORD)
|
||
|
|
{
|
||
|
|
// this is a wave specific option, it should have the form:
|
||
|
|
//
|
||
|
|
// #pragma command option(value)
|
||
|
|
//
|
||
|
|
// where
|
||
|
|
// 'command' is the value of the preprocessor constant
|
||
|
|
// BOOST_WAVE_PRAGMA_KEYWORD (defaults to "wave") and
|
||
|
|
// '(value)' is required only for some pragma directives (this is
|
||
|
|
// optional)
|
||
|
|
//
|
||
|
|
// All recognized #pragma operators are forwarded to the supplied
|
||
|
|
// preprocessing hook.
|
||
|
|
using namespace boost::spirit::classic;
|
||
|
|
token_type option;
|
||
|
|
ContainerT values;
|
||
|
|
|
||
|
|
if (!parse (++it, end,
|
||
|
|
( ch_p(T_IDENTIFIER)
|
||
|
|
[
|
||
|
|
spirit_assign_actor(option)
|
||
|
|
]
|
||
|
|
| pattern_p(KeywordTokenType,
|
||
|
|
TokenTypeMask|PPTokenFlag)
|
||
|
|
[
|
||
|
|
spirit_assign_actor(option)
|
||
|
|
]
|
||
|
|
| pattern_p(OperatorTokenType|AltExtTokenType,
|
||
|
|
ExtTokenTypeMask|PPTokenFlag) // and, bit_and etc.
|
||
|
|
[
|
||
|
|
spirit_assign_actor(option)
|
||
|
|
]
|
||
|
|
| pattern_p(BoolLiteralTokenType,
|
||
|
|
TokenTypeMask|PPTokenFlag)
|
||
|
|
[
|
||
|
|
spirit_assign_actor(option)
|
||
|
|
]
|
||
|
|
)
|
||
|
|
>> !comment_nest_p(
|
||
|
|
ch_p(T_LEFTPAREN),
|
||
|
|
ch_p(T_RIGHTPAREN)
|
||
|
|
)[spirit_assign_actor(values)],
|
||
|
|
pattern_p(WhiteSpaceTokenType, TokenTypeMask|PPTokenFlag)).hit)
|
||
|
|
{
|
||
|
|
typename ContextT::string_type msg(
|
||
|
|
impl::as_string<string_type>(it, end));
|
||
|
|
BOOST_WAVE_THROW_CTX(ctx, preprocess_exception,
|
||
|
|
ill_formed_pragma_option,
|
||
|
|
msg.c_str(), act_token.get_position());
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
// remove the falsely matched surrounding parenthesis's
|
||
|
|
if (values.size() >= 2) {
|
||
|
|
BOOST_ASSERT(T_LEFTPAREN == values.front() && T_RIGHTPAREN == values.back());
|
||
|
|
values.erase(values.begin());
|
||
|
|
typename ContainerT::reverse_iterator rit = values.rbegin();
|
||
|
|
values.erase((++rit).base());
|
||
|
|
}
|
||
|
|
|
||
|
|
// decode the option (call the context_policy hook)
|
||
|
|
if (!ctx.get_hooks().interpret_pragma(
|
||
|
|
ctx.derived(), pending, option, values, act_token))
|
||
|
|
{
|
||
|
|
// unknown #pragma option
|
||
|
|
string_type option_str ((*it).get_value());
|
||
|
|
|
||
|
|
option_str += option.get_value();
|
||
|
|
if (values.size() > 0) {
|
||
|
|
option_str += "(";
|
||
|
|
option_str += impl::as_string(values);
|
||
|
|
option_str += ")";
|
||
|
|
}
|
||
|
|
BOOST_WAVE_THROW_CTX(ctx, preprocess_exception,
|
||
|
|
ill_formed_pragma_option,
|
||
|
|
option_str.c_str(), act_token.get_position());
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
#if BOOST_WAVE_SUPPORT_PRAGMA_ONCE != 0
|
||
|
|
else if ((*it).get_value() == "once") {
|
||
|
|
// #pragma once
|
||
|
|
return ctx.add_pragma_once_header(act_token, ctx.get_current_filename());
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
#if BOOST_WAVE_SUPPORT_PRAGMA_MESSAGE != 0
|
||
|
|
else if ((*it).get_value() == "message") {
|
||
|
|
// #pragma message(...) or #pragma message ...
|
||
|
|
using namespace boost::spirit::classic;
|
||
|
|
ContainerT values;
|
||
|
|
|
||
|
|
if (!parse (++it, end,
|
||
|
|
( ( ch_p(T_LEFTPAREN)
|
||
|
|
>> lexeme_d[
|
||
|
|
*(anychar_p[spirit_append_actor(values)] - ch_p(T_RIGHTPAREN))
|
||
|
|
]
|
||
|
|
>> ch_p(T_RIGHTPAREN)
|
||
|
|
)
|
||
|
|
| lexeme_d[
|
||
|
|
*(anychar_p[spirit_append_actor(values)] - ch_p(T_NEWLINE))
|
||
|
|
]
|
||
|
|
),
|
||
|
|
pattern_p(WhiteSpaceTokenType, TokenTypeMask|PPTokenFlag)
|
||
|
|
).hit
|
||
|
|
)
|
||
|
|
{
|
||
|
|
typename ContextT::string_type msg(
|
||
|
|
impl::as_string<string_type>(it, end));
|
||
|
|
BOOST_WAVE_THROW_CTX(ctx, preprocess_exception,
|
||
|
|
ill_formed_pragma_message,
|
||
|
|
msg.c_str(), act_token.get_position());
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
// remove the falsely matched closing parenthesis/newline
|
||
|
|
if (values.size() > 0) {
|
||
|
|
BOOST_ASSERT(T_RIGHTPAREN == values.back() || T_NEWLINE == values.back());
|
||
|
|
typename ContainerT::reverse_iterator rit = values.rbegin();
|
||
|
|
values.erase((++rit).base());
|
||
|
|
}
|
||
|
|
|
||
|
|
// output the message itself
|
||
|
|
typename ContextT::string_type msg(impl::as_string(values));
|
||
|
|
BOOST_WAVE_THROW_CTX(ctx, preprocess_exception,
|
||
|
|
pragma_message_directive,
|
||
|
|
msg.c_str(), act_token.get_position());
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
}
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
///////////////////////////////////////////////////////////////////////////////
|
||
|
|
} // namespace util
|
||
|
|
} // namespace wave
|
||
|
|
} // namespace boost
|
||
|
|
|
||
|
|
// the suffix header occurs after all of the code
|
||
|
|
#ifdef BOOST_HAS_ABI_HEADERS
|
||
|
|
#include BOOST_ABI_SUFFIX
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#endif // !defined(INTERPRET_PRAGMA_HPP_B1F2315E_C5CE_4ED1_A343_0EF548B7942A_INCLUDED)
|