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sprout/weed/context/parse_context/operator/minus.hpp 追加

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sprout/weed/context/parse_context/operator/negate.hpp 追加
This commit is contained in:
bolero-MURAKAMI 2011-11-14 19:45:59 +09:00
parent 005f8a9a87
commit a7698fa6e9
13 changed files with 291 additions and 1 deletions
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2
sprout/weed/context/parse_context/operator.hpp
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@ -3,11 +3,13 @@
#include <sprout/config.hpp>
#include <sprout/weed/context/parse_context/operator/unary_plus.hpp>
#include <sprout/weed/context/parse_context/operator/negate.hpp>
#include <sprout/weed/context/parse_context/operator/dereference.hpp>
#include <sprout/weed/context/parse_context/operator/address_of.hpp>
#include <sprout/weed/context/parse_context/operator/logical_not.hpp>
#include <sprout/weed/context/parse_context/operator/shift_left.hpp>
#include <sprout/weed/context/parse_context/operator/modulus.hpp>
#include <sprout/weed/context/parse_context/operator/minus.hpp>
#include <sprout/weed/context/parse_context/operator/bitwise_or.hpp>
#endif // #ifndef SPROUT_WEED_CONTEXT_PARSE_CONTEXT_OPERATOR_HPP

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sprout/weed/context/parse_context/operator/minus.hpp Normal file
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#ifndef SPROUT_WEED_CONTEXT_PARSE_CONTEXT_TERMINAL_OPERATOR_MINUS_HPP
#define SPROUT_WEED_CONTEXT_PARSE_CONTEXT_TERMINAL_OPERATOR_MINUS_HPP
#include <type_traits>
#include <sprout/config.hpp>
#include <sprout/tuple/tuple.hpp>
#include <sprout/weed/eval_result.hpp>
#include <sprout/weed/expr/tag.hpp>
#include <sprout/weed/expr/eval.hpp>
#include <sprout/weed/traits/expr/tag_of.hpp>
#include <sprout/weed/traits/parser/attribute_of.hpp>
#include <sprout/weed/context/parse_context_fwd.hpp>
namespace sprout {
namespace weed {
//
// parse_context::eval
//
template<typename Iterator>
template<typename Expr>
struct parse_context<Iterator>::eval<
Expr,
typename std::enable_if<
std::is_same<
typename sprout::weed::traits::tag_of<Expr>::type,
sprout::weed::tag::minus
>::value
>::type
> {
private:
typedef sprout::weed::parse_context<Iterator> context_type;
public:
typedef typename sprout::weed::traits::attribute_of<Expr, Iterator, context_type>::type attribute_type;
typedef sprout::weed::eval_result<context_type, Iterator, attribute_type> result_type;
private:
template<typename Result1>
SPROUT_CONSTEXPR result_type call_1(
typename Expr::args_type const& args,
context_type const& ctx,
Result1 const& res
) const
{
return res.success() && !sprout::weed::eval(sprout::tuples::get<1>(args), ctx).success()
? res
: result_type(false, ctx.begin(), attribute_type(), ctx)
;
}
SPROUT_CONSTEXPR result_type call(
typename Expr::args_type const& args,
context_type const& ctx
) const
{
return call_1(args, ctx, sprout::weed::eval(sprout::tuples::get<0>(args), ctx));
}
public:
SPROUT_CONSTEXPR result_type operator()(
Expr const& expr,
context_type const& ctx
) const
{
return call(expr.args(), ctx);
}
};
} // namespace weed
} // namespace sprout
#endif // #ifndef SPROUT_WEED_CONTEXT_PARSE_CONTEXT_TERMINAL_OPERATOR_MINUS_HPP

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sprout/weed/context/parse_context/operator/negate.hpp Normal file
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#ifndef SPROUT_WEED_CONTEXT_PARSE_CONTEXT_TERMINAL_OPERATOR_NEGATE_HPP
#define SPROUT_WEED_CONTEXT_PARSE_CONTEXT_TERMINAL_OPERATOR_NEGATE_HPP
#include <type_traits>
#include <sprout/config.hpp>
#include <sprout/tuple/tuple.hpp>
#include <sprout/weed/eval_result.hpp>
#include <sprout/weed/expr/tag.hpp>
#include <sprout/weed/expr/eval.hpp>
#include <sprout/weed/attr_cnv/negate.hpp>
#include <sprout/weed/traits/expr/tag_of.hpp>
#include <sprout/weed/traits/parser/attribute_of.hpp>
#include <sprout/weed/context/parse_context_fwd.hpp>
namespace sprout {
namespace weed {
//
// parse_context::eval
//
template<typename Iterator>
template<typename Expr>
struct parse_context<Iterator>::eval<
Expr,
typename std::enable_if<
std::is_same<
typename sprout::weed::traits::tag_of<Expr>::type,
sprout::weed::tag::negate
>::value
>::type
> {
private:
typedef sprout::weed::parse_context<Iterator> context_type;
public:
typedef typename sprout::weed::traits::attribute_of<Expr, Iterator, context_type>::type attribute_type;
typedef sprout::weed::eval_result<context_type, Iterator, attribute_type> result_type;
private:
template<typename Result>
SPROUT_CONSTEXPR result_type call(
context_type const& ctx,
Result const& res
) const
{
return result_type(
true,
res.current(),
sprout::weed::attr_cnv::negate(res.attr(), res.success()),
res.success() ? context_type(ctx, res.current()) : ctx
);
}
public:
SPROUT_CONSTEXPR result_type operator()(
Expr const& expr,
context_type const& ctx
) const
{
return call(ctx, sprout::weed::eval(sprout::tuples::get<0>(expr.args()), ctx));
}
};
} // namespace weed
} // namespace sprout
#endif // #ifndef SPROUT_WEED_CONTEXT_PARSE_CONTEXT_TERMINAL_OPERATOR_NEGATE_HPP