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glr2.cc: introduse b4_glr2_cc_if

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* data/skeletons/bison.m4 (b4_glr2_cc_if): Intro.
* data/skeletons/c++.m4: use.
This commit is contained in:
Akim Demaille
2021-09-12 20:02:36 +02:00
parent b820718adf
commit 157e91dcc6
2 changed files with 13 additions and 9 deletions
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6
data/skeletons/bison.m4
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@@ -409,8 +409,12 @@ b4_define_flag_if([yacc]) # Whether POSIX Yacc is emulated.
# b4_glr_cc_if([IF-TRUE], [IF-FALSE])
# -----------------------------------
m4_define([b4_glr_cc_if],
[m4_if(m4_bregexp(b4_skeleton, [^"glr.cc"$]), [0], $@)])
[m4_if(b4_skeleton, ["glr.cc"], $@)])
# b4_glr2_cc_if([IF-TRUE], [IF-FALSE])
# ------------------------------------
m4_define([b4_glr2_cc_if],
[m4_if(b4_skeleton, ["glr2.cc"], $@)])
## --------- ##
## Symbols. ##

16
data/skeletons/c++.m4
View File

@@ -227,7 +227,7 @@ m4_define([b4_value_type_declare],
# Define the public types: token, semantic value, location, and so forth.
# Depending on %define token_lex, may be output in the header or source file.
m4_define([b4_public_types_declare],
[m4_if(b4_skeleton, ["glr2.cc"],
[b4_glr2_cc_if(
[b4_value_type_declare],
[[#ifdef ]b4_api_PREFIX[STYPE
# ifdef __GNUC__
@@ -265,13 +265,13 @@ m4_define([b4_public_types_declare],
/// Token kinds.
struct token
{
]b4_token_enums[]m4_if(b4_skeleton, ["glr2.cc"], [], [[
]b4_token_enums[]b4_glr2_cc_if([], [[
/// Backward compatibility alias (Bison 3.6).
typedef token_kind_type yytokentype;]])[
};
/// Token kind, as returned by yylex.
typedef token::token_kind_type token_kind_type;]m4_if(b4_skeleton, ["glr2.cc"], [], [[
typedef token::token_kind_type token_kind_type;]b4_glr2_cc_if([], [[
/// Backward compatibility alias (Bison 3.6).
typedef token_kind_type token_type;]])[
@@ -399,7 +399,7 @@ m4_define([b4_symbol_type_define],
std::string name () const YY_NOEXCEPT
{
return ]b4_parser_class[::symbol_name (this->kind ());
}]])[]m4_if(b4_skeleton, ["glr2.cc"], [], [[
}]])[]b4_glr2_cc_if([], [[
/// Backward compatibility (Bison 3.6).
symbol_kind_type type_get () const YY_NOEXCEPT;]])[
@@ -456,7 +456,7 @@ m4_define([b4_symbol_type_define],
/// The (internal) type number (corresponding to \a type).
/// \a empty when empty.
symbol_kind_type kind () const YY_NOEXCEPT;]m4_if(b4_skeleton, ["glr2.cc"], [], [[
symbol_kind_type kind () const YY_NOEXCEPT;]b4_glr2_cc_if([], [[
/// Backward compatibility (Bison 3.6).
symbol_kind_type type_get () const YY_NOEXCEPT;]])[
@@ -464,7 +464,7 @@ m4_define([b4_symbol_type_define],
/// The symbol kind.
/// \a ]b4_symbol_prefix[YYEMPTY when empty.
symbol_kind_type kind_;
};]m4_if(b4_skeleton, ["glr2.cc"], [], [[
};]b4_glr2_cc_if([], [[
/// Backward compatibility for a private implementation detail (Bison 3.6).
typedef by_kind by_type;]])[
@@ -522,7 +522,7 @@ m4_define([b4_public_types_define],
(void) v;
]b4_symbol_variant([this->kind ()], [value], [YY_MOVE_OR_COPY], [YY_MOVE (v)])])[}]])[
]m4_if(b4_skeleton, ["glr2.cc"], [], [[
]b4_glr2_cc_if([], [[
template <typename Base>
]b4_parser_class[::symbol_kind_type
]b4_parser_class[::basic_symbol<Base>::type_get () const YY_NOEXCEPT
@@ -599,7 +599,7 @@ m4_define([b4_public_types_define],
return kind_;
}
]m4_if(b4_skeleton, ["glr2.cc"], [], [[
]b4_glr2_cc_if([], [[
]b4_inline([$1])[]b4_parser_class[::symbol_kind_type
]b4_parser_class[::by_kind::type_get () const YY_NOEXCEPT
{