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update bison flex

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-Updated bison flex exe files to the latest windows version i could find
-Regenned the compiler..... alot of changes.....
This commit is contained in:
marauder2k7 2024-04-14 22:17:41 +01:00
parent 0954b081d0
commit 83b3f01928
65 changed files with 31010 additions and 11607 deletions
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1241
Engine/bin/bison-flex/data/skeletons/bison.m4 Normal file
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-*- Autoconf -*-
# C++ skeleton dispatching for Bison.
# Copyright (C) 2006-2007, 2009-2015, 2018-2021 Free Software
# Foundation, Inc.
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <https://www.gnu.org/licenses/>.
b4_glr_if( [m4_define([b4_used_skeleton], [b4_skeletonsdir/[glr.cc]])])
b4_nondeterministic_if([m4_define([b4_used_skeleton], [b4_skeletonsdir/[glr.cc]])])
m4_define_default([b4_used_skeleton], [b4_skeletonsdir/[lalr1.cc]])
m4_define_default([b4_skeleton], ["b4_basename(b4_used_skeleton)"])
m4_include(b4_used_skeleton)

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-*- Autoconf -*-
# C++ skeleton for Bison
# Copyright (C) 2002-2021 Free Software Foundation, Inc.
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <https://www.gnu.org/licenses/>.
# Sanity checks, before defaults installed by c.m4.
b4_percent_define_ifdef([[api.value.union.name]],
[b4_complain_at(b4_percent_define_get_loc([[api.value.union.name]]),
[named %union is invalid in C++])])
b4_percent_define_default([[api.symbol.prefix]], [[S_]])
m4_include(b4_skeletonsdir/[c.m4])
b4_percent_define_check_kind([api.namespace], [code], [deprecated])
b4_percent_define_check_kind([api.parser.class], [code], [deprecated])
## ----- ##
## C++. ##
## ----- ##
# b4_comment(TEXT, [PREFIX])
# --------------------------
# Put TEXT in comment. Prefix all the output lines with PREFIX.
m4_define([b4_comment],
[_b4_comment([$1], [$2// ], [$2// ])])
# b4_inline(hh|cc)
# ----------------
# Expand to `inline\n ` if $1 is hh.
m4_define([b4_inline],
[m4_case([$1],
[cc], [],
[hh], [[inline
]],
[m4_fatal([$0: invalid argument: $1])])])
# b4_cxx_portability
# ------------------
m4_define([b4_cxx_portability],
[#if defined __cplusplus
# define YY_CPLUSPLUS __cplusplus
#else
# define YY_CPLUSPLUS 199711L
#endif
// Support move semantics when possible.
#if 201103L <= YY_CPLUSPLUS
# define YY_MOVE std::move
# define YY_MOVE_OR_COPY move
# define YY_MOVE_REF(Type) Type&&
# define YY_RVREF(Type) Type&&
# define YY_COPY(Type) Type
#else
# define YY_MOVE
# define YY_MOVE_OR_COPY copy
# define YY_MOVE_REF(Type) Type&
# define YY_RVREF(Type) const Type&
# define YY_COPY(Type) const Type&
#endif
// Support noexcept when possible.
#if 201103L <= YY_CPLUSPLUS
# define YY_NOEXCEPT noexcept
# define YY_NOTHROW
#else
# define YY_NOEXCEPT
# define YY_NOTHROW throw ()
#endif
// Support constexpr when possible.
#if 201703 <= YY_CPLUSPLUS
# define YY_CONSTEXPR constexpr
#else
# define YY_CONSTEXPR
#endif[]dnl
])
## ---------------- ##
## Default values. ##
## ---------------- ##
b4_percent_define_default([[api.parser.class]], [[parser]])
# Don't do that so that we remember whether we're using a user
# request, or the default value.
#
# b4_percent_define_default([[api.location.type]], [[location]])
b4_percent_define_default([[api.filename.type]], [[const std::string]])
# Make it a warning for those who used betas of Bison 3.0.
b4_percent_define_default([[api.namespace]], m4_defn([b4_prefix]))
b4_percent_define_default([[define_location_comparison]],
[m4_if(b4_percent_define_get([[filename_type]]),
[std::string], [[true]], [[false]])])
## ----------- ##
## Namespace. ##
## ----------- ##
m4_define([b4_namespace_ref], [b4_percent_define_get([[api.namespace]])])
# Don't permit an empty b4_namespace_ref. Any '::parser::foo' appended to it
# would compile as an absolute reference with 'parser' in the global namespace.
# b4_namespace_open would open an anonymous namespace and thus establish
# internal linkage. This would compile. However, it's cryptic, and internal
# linkage for the parser would be specified in all translation units that
# include the header, which is always generated. If we ever need to permit
# internal linkage somehow, surely we can find a cleaner approach.
m4_if(m4_bregexp(b4_namespace_ref, [^[ ]*$]), [-1], [],
[b4_complain_at(b4_percent_define_get_loc([[api.namespace]]),
[[namespace reference is empty]])])
# Instead of assuming the C++ compiler will do it, Bison should reject any
# invalid b4_namespace_ref that would be converted to a valid
# b4_namespace_open. The problem is that Bison doesn't always output
# b4_namespace_ref to uncommented code but should reserve the ability to do so
# in future releases without risking breaking any existing user grammars.
# Specifically, don't allow empty names as b4_namespace_open would just convert
# those into anonymous namespaces, and that might tempt some users.
m4_if(m4_bregexp(b4_namespace_ref, [::[ ]*::]), [-1], [],
[b4_complain_at(b4_percent_define_get_loc([[api.namespace]]),
[[namespace reference has consecutive "::"]])])
m4_if(m4_bregexp(b4_namespace_ref, [::[ ]*$]), [-1], [],
[b4_complain_at(b4_percent_define_get_loc([[api.namespace]]),
[[namespace reference has a trailing "::"]])])
m4_define([b4_namespace_open],
[b4_user_code([b4_percent_define_get_syncline([[api.namespace]])dnl
[namespace ]m4_bpatsubst(m4_dquote(m4_bpatsubst(m4_dquote(b4_namespace_ref),
[^\(.\)[ ]*::], [\1])),
[::], [ { namespace ])[ {]])])
m4_define([b4_namespace_close],
[b4_user_code([b4_percent_define_get_syncline([[api.namespace]])dnl
m4_bpatsubst(m4_dquote(m4_bpatsubst(m4_dquote(b4_namespace_ref[ ]),
[^\(.\)[ ]*\(::\)?\([^][:]\|:[^:]\)*],
[\1])),
[::\([^][:]\|:[^:]\)*], [} ])[} // ]b4_namespace_ref])])
## ------------- ##
## Token kinds. ##
## ------------- ##
# b4_token_enums
# --------------
# Output the definition of the token kinds.
m4_define([b4_token_enums],
[[enum token_kind_type
{
]b4_symbol([-2], [id])[ = -2,
]b4_symbol_foreach([b4_token_enum])dnl
[ };]dnl
])
## -------------- ##
## Symbol kinds. ##
## -------------- ##
# b4_declare_symbol_enum
# ----------------------
# The definition of the symbol internal numbers as an enum.
# Defining YYEMPTY here is important: it forces the compiler
# to use a signed type, which matters for yytoken.
m4_define([b4_declare_symbol_enum],
[[enum symbol_kind_type
{
YYNTOKENS = ]b4_tokens_number[, ///< Number of tokens.
]b4_symbol(empty, kind_base)[ = -2,
]b4_symbol_foreach([ b4_symbol_enum])dnl
[ };]])
## ----------------- ##
## Semantic Values. ##
## ----------------- ##
# b4_value_type_declare
# ---------------------
# Declare value_type.
m4_define([b4_value_type_declare],
[b4_value_type_setup[]dnl
[ /// Symbol semantic values.
]m4_bmatch(b4_percent_define_get_kind([[api.value.type]]),
[code],
[[ typedef ]b4_percent_define_get([[api.value.type]])[ value_type;]],
[m4_bmatch(b4_percent_define_get([[api.value.type]]),
[union\|union-directive],
[[ union value_type
{
]b4_user_union_members[
};]])])dnl
])
# b4_public_types_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],
[b4_glr2_cc_if(
[b4_value_type_declare],
[[#ifdef ]b4_api_PREFIX[STYPE
# ifdef __GNUC__
# pragma GCC message "bison: do not #define ]b4_api_PREFIX[STYPE in C++, use %define api.value.type"
# endif
typedef ]b4_api_PREFIX[STYPE value_type;
#else
]b4_value_type_declare[
#endif
/// Backward compatibility (Bison 3.8).
typedef value_type semantic_type;
]])[]b4_locations_if([
/// Symbol locations.
typedef b4_percent_define_get([[api.location.type]],
[[location]]) location_type;])[
/// Syntax errors thrown from user actions.
struct syntax_error : std::runtime_error
{
syntax_error (]b4_locations_if([const location_type& l, ])[const std::string& m)
: std::runtime_error (m)]b4_locations_if([
, location (l)])[
{}
syntax_error (const syntax_error& s)
: std::runtime_error (s.what ())]b4_locations_if([
, location (s.location)])[
{}
~syntax_error () YY_NOEXCEPT YY_NOTHROW;]b4_locations_if([
location_type location;])[
};
/// Token kinds.
struct token
{
]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;]b4_glr2_cc_if([], [[
/// Backward compatibility alias (Bison 3.6).
typedef token_kind_type token_type;]])[
/// Symbol kinds.
struct symbol_kind
{
]b4_declare_symbol_enum[
};
/// (Internal) symbol kind.
typedef symbol_kind::symbol_kind_type symbol_kind_type;
/// The number of tokens.
static const symbol_kind_type YYNTOKENS = symbol_kind::YYNTOKENS;
]])
# b4_symbol_type_define
# ---------------------
# Define symbol_type, the external type for symbols used for symbol
# constructors.
m4_define([b4_symbol_type_define],
[[ /// A complete symbol.
///
/// Expects its Base type to provide access to the symbol kind
/// via kind ().
///
/// Provide access to semantic value]b4_locations_if([ and location])[.
template <typename Base>
struct basic_symbol : Base
{
/// Alias to Base.
typedef Base super_type;
/// Default constructor.
basic_symbol () YY_NOEXCEPT
: value ()]b4_locations_if([
, location ()])[
{}
#if 201103L <= YY_CPLUSPLUS
/// Move constructor.
basic_symbol (basic_symbol&& that)
: Base (std::move (that))
, value (]b4_variant_if([], [std::move (that.value)]))b4_locations_if([
, location (std::move (that.location))])[
{]b4_variant_if([
b4_symbol_variant([this->kind ()], [value], [move],
[std::move (that.value)])
])[}
#endif
/// Copy constructor.
basic_symbol (const basic_symbol& that);]b4_variant_if([[
/// Constructors for typed symbols.
]b4_type_foreach([b4_basic_symbol_constructor_define], [
])], [[
/// Constructor for valueless symbols.
basic_symbol (typename Base::kind_type t]b4_locations_if([,
YY_MOVE_REF (location_type) l])[);
/// Constructor for symbols with semantic value.
basic_symbol (typename Base::kind_type t,
YY_RVREF (value_type) v]b4_locations_if([,
YY_RVREF (location_type) l])[);
]])[
/// Destroy the symbol.
~basic_symbol ()
{
clear ();
}
]b4_glr2_cc_if([[
/// Copy assignment.
basic_symbol& operator= (const basic_symbol& that)
{
Base::operator= (that);]b4_variant_if([[
]b4_symbol_variant([this->kind ()], [value], [copy],
[that.value])], [[
value = that.value]])[;]b4_locations_if([[
location = that.location;]])[
return *this;
}
/// Move assignment.
basic_symbol& operator= (basic_symbol&& that)
{
Base::operator= (std::move (that));]b4_variant_if([[
]b4_symbol_variant([this->kind ()], [value], [move],
[std::move (that.value)])], [[
value = std::move (that.value)]])[;]b4_locations_if([[
location = std::move (that.location);]])[
return *this;
}
]])[
/// Destroy contents, and record that is empty.
void clear () YY_NOEXCEPT
{]b4_variant_if([[
// User destructor.
symbol_kind_type yykind = this->kind ();
basic_symbol<Base>& yysym = *this;
(void) yysym;
switch (yykind)
{
]b4_symbol_foreach([b4_symbol_destructor])dnl
[ default:
break;
}
// Value type destructor.
]b4_symbol_variant([[yykind]], [[value]], [[template destroy]])])[
Base::clear ();
}
]b4_parse_error_bmatch(
[custom\|detailed],
[[ /// The user-facing name of this symbol.
const char *name () const YY_NOEXCEPT
{
return ]b4_parser_class[::symbol_name (this->kind ());
}]],
[simple],
[[#if ]b4_api_PREFIX[DEBUG || ]b4_token_table_flag[
/// The user-facing name of this symbol.
const char *name () const YY_NOEXCEPT
{
return ]b4_parser_class[::symbol_name (this->kind ());
}
#endif // #if ]b4_api_PREFIX[DEBUG || ]b4_token_table_flag[
]],
[verbose],
[[ /// The user-facing name of this symbol.
std::string name () const YY_NOEXCEPT
{
return ]b4_parser_class[::symbol_name (this->kind ());
}]])[]b4_glr2_cc_if([], [[
/// Backward compatibility (Bison 3.6).
symbol_kind_type type_get () const YY_NOEXCEPT;]])[
/// Whether empty.
bool empty () const YY_NOEXCEPT;
/// Destructive move, \a s is emptied into this.
void move (basic_symbol& s);
/// The semantic value.
value_type value;]b4_locations_if([
/// The location.
location_type location;])[
private:
#if YY_CPLUSPLUS < 201103L
/// Assignment operator.
basic_symbol& operator= (const basic_symbol& that);
#endif
};
/// Type access provider for token (enum) based symbols.
struct by_kind
{
/// The symbol kind as needed by the constructor.
typedef token_kind_type kind_type;
/// Default constructor.
by_kind () YY_NOEXCEPT;
#if 201103L <= YY_CPLUSPLUS
/// Move constructor.
by_kind (by_kind&& that) YY_NOEXCEPT;
#endif
/// Copy constructor.
by_kind (const by_kind& that) YY_NOEXCEPT;
/// Constructor from (external) token numbers.
by_kind (kind_type t) YY_NOEXCEPT;
]b4_glr2_cc_if([[
/// Copy assignment.
by_kind& operator= (const by_kind& that);
/// Move assignment.
by_kind& operator= (by_kind&& that);
]])[
/// Record that this symbol is empty.
void clear () YY_NOEXCEPT;
/// Steal the symbol kind from \a that.
void move (by_kind& that);
/// The (internal) type number (corresponding to \a type).
/// \a empty when empty.
symbol_kind_type kind () const YY_NOEXCEPT;]b4_glr2_cc_if([], [[
/// Backward compatibility (Bison 3.6).
symbol_kind_type type_get () const YY_NOEXCEPT;]])[
/// The symbol kind.
/// \a ]b4_symbol_prefix[YYEMPTY when empty.
symbol_kind_type kind_;
};]b4_glr2_cc_if([], [[
/// Backward compatibility for a private implementation detail (Bison 3.6).
typedef by_kind by_type;]])[
/// "External" symbols: returned by the scanner.
struct symbol_type : basic_symbol<by_kind>
{]b4_variant_if([[
/// Superclass.
typedef basic_symbol<by_kind> super_type;
/// Empty symbol.
symbol_type () YY_NOEXCEPT {}
/// Constructor for valueless symbols, and symbols from each type.
]b4_type_foreach([_b4_symbol_constructor_define])dnl
])[};
]])
# b4_public_types_define(hh|cc)
# -----------------------------
# Provide the implementation needed by the public types.
m4_define([b4_public_types_define],
[[ // basic_symbol.
template <typename Base>
]b4_parser_class[::basic_symbol<Base>::basic_symbol (const basic_symbol& that)
: Base (that)
, value (]b4_variant_if([], [that.value]))b4_locations_if([
, location (that.location)])[
{]b4_variant_if([
b4_symbol_variant([this->kind ()], [value], [copy],
[YY_MOVE (that.value)])
])[}
]b4_variant_if([], [[
/// Constructor for valueless symbols.
template <typename Base>
]b4_parser_class[::basic_symbol<Base>::basic_symbol (]b4_join(
[typename Base::kind_type t],
b4_locations_if([YY_MOVE_REF (location_type) l]))[)
: Base (t)
, value ()]b4_locations_if([
, location (l)])[
{}
template <typename Base>
]b4_parser_class[::basic_symbol<Base>::basic_symbol (]b4_join(
[typename Base::kind_type t],
[YY_RVREF (value_type) v],
b4_locations_if([YY_RVREF (location_type) l]))[)
: Base (t)
, value (]b4_variant_if([], [YY_MOVE (v)])[)]b4_locations_if([
, location (YY_MOVE (l))])[
{]b4_variant_if([[
(void) v;
]b4_symbol_variant([this->kind ()], [value], [YY_MOVE_OR_COPY], [YY_MOVE (v)])])[}]])[
]b4_glr2_cc_if([], [[
template <typename Base>
]b4_parser_class[::symbol_kind_type
]b4_parser_class[::basic_symbol<Base>::type_get () const YY_NOEXCEPT
{
return this->kind ();
}
]])[
template <typename Base>
bool
]b4_parser_class[::basic_symbol<Base>::empty () const YY_NOEXCEPT
{
return this->kind () == ]b4_symbol(empty, kind)[;
}
template <typename Base>
void
]b4_parser_class[::basic_symbol<Base>::move (basic_symbol& s)
{
super_type::move (s);
]b4_variant_if([b4_symbol_variant([this->kind ()], [value], [move],
[YY_MOVE (s.value)])],
[value = YY_MOVE (s.value);])[]b4_locations_if([
location = YY_MOVE (s.location);])[
}
// by_kind.
]b4_inline([$1])b4_parser_class[::by_kind::by_kind () YY_NOEXCEPT
: kind_ (]b4_symbol(empty, kind)[)
{}
#if 201103L <= YY_CPLUSPLUS
]b4_inline([$1])b4_parser_class[::by_kind::by_kind (by_kind&& that) YY_NOEXCEPT
: kind_ (that.kind_)
{
that.clear ();
}
#endif
]b4_inline([$1])b4_parser_class[::by_kind::by_kind (const by_kind& that) YY_NOEXCEPT
: kind_ (that.kind_)
{}
]b4_inline([$1])b4_parser_class[::by_kind::by_kind (token_kind_type t) YY_NOEXCEPT
: kind_ (yytranslate_ (t))
{}
]b4_glr2_cc_if([[
]b4_inline([$1])]b4_parser_class[::by_kind&
b4_parser_class[::by_kind::by_kind::operator= (const by_kind& that)
{
kind_ = that.kind_;
return *this;
}
]b4_inline([$1])]b4_parser_class[::by_kind&
b4_parser_class[::by_kind::by_kind::operator= (by_kind&& that)
{
kind_ = that.kind_;
that.clear ();
return *this;
}
]])[
]b4_inline([$1])[void
]b4_parser_class[::by_kind::clear () YY_NOEXCEPT
{
kind_ = ]b4_symbol(empty, kind)[;
}
]b4_inline([$1])[void
]b4_parser_class[::by_kind::move (by_kind& that)
{
kind_ = that.kind_;
that.clear ();
}
]b4_inline([$1])[]b4_parser_class[::symbol_kind_type
]b4_parser_class[::by_kind::kind () const YY_NOEXCEPT
{
return kind_;
}
]b4_glr2_cc_if([], [[
]b4_inline([$1])[]b4_parser_class[::symbol_kind_type
]b4_parser_class[::by_kind::type_get () const YY_NOEXCEPT
{
return this->kind ();
}
]])[
]])
# b4_token_constructor_define
# ----------------------------
# Define make_FOO for all the token kinds.
# Use at class-level. Redefined in variant.hh.
m4_define([b4_token_constructor_define], [])
# b4_yytranslate_define(cc|hh)
# ----------------------------
# Define yytranslate_. Sometimes used in the header file ($1=hh),
# sometimes in the cc file.
m4_define([b4_yytranslate_define],
[ b4_inline([$1])b4_parser_class[::symbol_kind_type
]b4_parser_class[::yytranslate_ (int t) YY_NOEXCEPT
{
]b4_api_token_raw_if(
[[ return static_cast<symbol_kind_type> (t);]],
[[ // YYTRANSLATE[TOKEN-NUM] -- Symbol number corresponding to
// TOKEN-NUM as returned by yylex.
static
const ]b4_int_type_for([b4_translate])[
translate_table[] =
{
]b4_translate[
};
// Last valid token kind.
const int code_max = ]b4_code_max[;
if (t <= 0)
return symbol_kind::]b4_symbol_prefix[YYEOF;
else if (t <= code_max)
return static_cast <symbol_kind_type> (translate_table[t]);
else
return symbol_kind::]b4_symbol_prefix[YYUNDEF;]])[
}
]])
# b4_lhs_value([TYPE])
# --------------------
m4_define([b4_lhs_value],
[b4_symbol_value([yyval], [$1])])
# b4_rhs_value(RULE-LENGTH, POS, [TYPE])
# --------------------------------------
# FIXME: Dead code.
m4_define([b4_rhs_value],
[b4_symbol_value([yysemantic_stack_@{($1) - ($2)@}], [$3])])
# b4_lhs_location()
# -----------------
# Expansion of @$.
m4_define([b4_lhs_location],
[(yyloc)])
# b4_rhs_location(RULE-LENGTH, POS)
# ---------------------------------
# Expansion of @POS, where the current rule has RULE-LENGTH symbols
# on RHS.
m4_define([b4_rhs_location],
[(yylocation_stack_@{($1) - ($2)@})])
# b4_parse_param_decl
# -------------------
# Extra formal arguments of the constructor.
# Change the parameter names from "foo" into "foo_yyarg", so that
# there is no collision bw the user chosen attribute name, and the
# argument name in the constructor.
m4_define([b4_parse_param_decl],
[m4_ifset([b4_parse_param],
[m4_map_sep([b4_parse_param_decl_1], [, ], [b4_parse_param])])])
m4_define([b4_parse_param_decl_1],
[$1_yyarg])
# b4_parse_param_cons
# -------------------
# Extra initialisations of the constructor.
m4_define([b4_parse_param_cons],
[m4_ifset([b4_parse_param],
[
b4_cc_constructor_calls(b4_parse_param)])])
m4_define([b4_cc_constructor_calls],
[m4_map_sep([b4_cc_constructor_call], [,
], [$@])])
m4_define([b4_cc_constructor_call],
[$2 ($2_yyarg)])
# b4_parse_param_vars
# -------------------
# Extra instance variables.
m4_define([b4_parse_param_vars],
[m4_ifset([b4_parse_param],
[
// User arguments.
b4_cc_var_decls(b4_parse_param)])])
m4_define([b4_cc_var_decls],
[m4_map_sep([b4_cc_var_decl], [
], [$@])])
m4_define([b4_cc_var_decl],
[ $1;])
## ---------##
## Values. ##
## ---------##
# b4_yylloc_default_define
# ------------------------
# Define YYLLOC_DEFAULT.
m4_define([b4_yylloc_default_define],
[[/* YYLLOC_DEFAULT -- Set CURRENT to span from RHS[1] to RHS[N].
If N is 0, then set CURRENT to the empty location which ends
the previous symbol: RHS[0] (always defined). */
# ifndef YYLLOC_DEFAULT
# define YYLLOC_DEFAULT(Current, Rhs, N) \
do \
if (N) \
{ \
(Current).begin = YYRHSLOC (Rhs, 1).begin; \
(Current).end = YYRHSLOC (Rhs, N).end; \
} \
else \
{ \
(Current).begin = (Current).end = YYRHSLOC (Rhs, 0).end; \
} \
while (false)
# endif
]])
## -------- ##
## Checks. ##
## -------- ##
b4_token_ctor_if([b4_variant_if([],
[b4_fatal_at(b4_percent_define_get_loc(api.token.constructor),
[cannot use '%s' without '%s'],
[%define api.token.constructor],
[%define api.value.type variant]))])])

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-*- Autoconf -*-
# Common code for C-like languages (C, C++, Java, etc.)
# Copyright (C) 2012-2015, 2018-2021 Free Software Foundation, Inc.
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <https://www.gnu.org/licenses/>.
# _b4_comment(TEXT, OPEN, CONTINUE, END)
# --------------------------------------
# Put TEXT in comment. Avoid trailing spaces: don't indent empty lines.
# Avoid adding indentation to the first line, as the indentation comes
# from OPEN. That's why we don't patsubst([$1], [^\(.\)], [ \1]).
# Turn "*/" in TEXT into "* /" so that we don't unexpectedly close
# the comments before its end.
#
# Prefix all the output lines with PREFIX.
m4_define([_b4_comment],
[$2[]b4_gsub(m4_expand([$1]),
[[*]/], [*\\/],
[/[*]], [/\\*],
[
\(.\)], [
$3\1])$4])
# b4_comment(TEXT, [PREFIX])
# --------------------------
# Put TEXT in comment. Prefix all the output lines with PREFIX.
m4_define([b4_comment],
[_b4_comment([$1], [$2/* ], [$2 ], [ */])])
# _b4_dollar_dollar(VALUE, SYMBOL-NUM, FIELD, DEFAULT-FIELD)
# ----------------------------------------------------------
# If FIELD (or DEFAULT-FIELD) is non-null, return "VALUE.FIELD",
# otherwise just VALUE. Be sure to pass "(VALUE)" if VALUE is a
# pointer.
m4_define([_b4_dollar_dollar],
[b4_symbol_value([$1],
[$2],
m4_if([$3], [[]],
[[$4]], [[$3]]))])
# b4_dollar_pushdef(VALUE-POINTER, SYMBOL-NUM, [TYPE_TAG], LOCATION)
# b4_dollar_popdef
# ------------------------------------------------------------------
# Define b4_dollar_dollar for VALUE-POINTER and DEFAULT-FIELD,
# and b4_at_dollar for LOCATION.
m4_define([b4_dollar_pushdef],
[m4_pushdef([b4_dollar_dollar],
[_b4_dollar_dollar([$1], [$2], m4_dquote($][1), [$3])])dnl
m4_pushdef([b4_at_dollar], [$4])dnl
])
m4_define([b4_dollar_popdef],
[m4_popdef([b4_at_dollar])dnl
m4_popdef([b4_dollar_dollar])dnl
])

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-*- Autoconf -*-
# C skeleton dispatching for Bison.
# Copyright (C) 2006-2007, 2009-2015, 2018-2021 Free Software
# Foundation, Inc.
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <https://www.gnu.org/licenses/>.
b4_glr_if( [m4_define([b4_used_skeleton], [b4_skeletonsdir/[glr.c]])])
b4_nondeterministic_if([m4_define([b4_used_skeleton], [b4_skeletonsdir/[glr.c]])])
m4_define_default([b4_used_skeleton], [b4_skeletonsdir/[yacc.c]])
m4_define_default([b4_skeleton], ["b4_basename(b4_used_skeleton)"])
m4_include(b4_used_skeleton)

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-*- Autoconf -*-
# D skeleton dispatching for Bison.
# Copyright (C) 2018-2021 Free Software Foundation, Inc.
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <https://www.gnu.org/licenses/>.
b4_glr_if( [b4_complain([%%glr-parser not supported for D])])
b4_nondeterministic_if([b4_complain([%%nondeterministic-parser not supported for D])])
m4_define_default([b4_used_skeleton], [b4_skeletonsdir/[lalr1.d]])
m4_define_default([b4_skeleton], ["b4_basename(b4_used_skeleton)"])
m4_include(b4_used_skeleton)

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-*- Autoconf -*-
# D language support for Bison
# Copyright (C) 2018-2021 Free Software Foundation, Inc.
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <https://www.gnu.org/licenses/>.
m4_include(b4_skeletonsdir/[c-like.m4])
# b4_symbol_action(SYMBOL-NUM, ACTION)
# ------------------------------------
# Run the action ACTION ("destructor" or "printer") for SYMBOL-NUM.
m4_define([b4_symbol_action],
[b4_symbol_if([$1], [has_$2],
[b4_dollar_pushdef([yyval],
[$1],
[],
[yyloc])dnl
_b4_symbol_case([$1])[]dnl
b4_syncline([b4_symbol([$1], [$2_line])], [b4_symbol([$1], [$2_file])])dnl
b4_symbol([$1], [$2])
b4_syncline([@oline@], [@ofile@])dnl
break;
b4_dollar_popdef[]dnl
])])
# b4_use(EXPR)
# ------------
# Pacify the compiler about some maybe unused value.
m4_define([b4_use],
[])
# b4_sync_start(LINE, FILE)
# -------------------------
m4_define([b4_sync_start], [[#]line $1 $2])
# b4_list2(LIST1, LIST2)
# ----------------------
# Join two lists with a comma if necessary.
m4_define([b4_list2],
[$1[]m4_ifval(m4_quote($1), [m4_ifval(m4_quote($2), [[, ]])])[]$2])
# b4_percent_define_get3(DEF, PRE, POST, NOT)
# -------------------------------------------
# Expand to the value of DEF surrounded by PRE and POST if it's %define'ed,
# otherwise NOT.
m4_define([b4_percent_define_get3],
[m4_ifval(m4_quote(b4_percent_define_get([$1])),
[$2[]b4_percent_define_get([$1])[]$3], [$4])])
# b4_percent_define_if_get2(ARG1, ARG2, DEF, NOT)
# -----------------------------------------------
# Expand to the value of DEF if ARG1 or ARG2 are %define'ed,
# otherwise NOT.
m4_define([b4_percent_define_if_get2],
[m4_ifval(m4_quote(b4_percent_define_get([$1])),
[$3], [m4_ifval(m4_quote(b4_percent_define_get([$2])),
[$3], [$4])])])
# b4_percent_define_class_before_interface(CLASS, INTERFACE)
# ----------------------------------------------------------
# Expand to a ', ' if both a class and an interface have been %define'ed
m4_define([b4_percent_define_class_before_interface],
[m4_ifval(m4_quote(b4_percent_define_get([$1])),
[m4_ifval(m4_quote(b4_percent_define_get([$2])),
[, ])])])
# b4_flag_value(BOOLEAN-FLAG)
# ---------------------------
m4_define([b4_flag_value], [b4_flag_if([$1], [true], [false])])
# b4_parser_class_declaration
# ---------------------------
# The declaration of the parser class ("class YYParser"), with all its
# qualifiers/annotations.
b4_percent_define_default([[api.parser.abstract]], [[false]])
b4_percent_define_default([[api.parser.final]], [[false]])
b4_percent_define_default([[api.parser.public]], [[false]])
m4_define([b4_parser_class_declaration],
[b4_percent_define_get3([api.parser.annotations], [], [ ])dnl
b4_percent_define_flag_if([api.parser.public], [public ])dnl
b4_percent_define_flag_if([api.parser.abstract], [abstract ])dnl
b4_percent_define_flag_if([api.parser.final], [final ])dnl
[class ]b4_parser_class[]dnl
b4_percent_define_if_get2([api.parser.extends], [api.parser.implements], [ : ])dnl
b4_percent_define_get([api.parser.extends])dnl
b4_percent_define_class_before_interface([api.parser.extends], [api.parser.implements])dnl
b4_percent_define_get([api.parser.implements])])
# b4_lexer_if(TRUE, FALSE)
# ------------------------
m4_define([b4_lexer_if],
[b4_percent_code_ifdef([[lexer]], [$1], [$2])])
# b4_position_type_if(TRUE, FALSE)
# --------------------------------
m4_define([b4_position_type_if],
[b4_percent_define_ifdef([[position_type]], [$1], [$2])])
# b4_location_type_if(TRUE, FALSE)
# --------------------------------
m4_define([b4_location_type_if],
[b4_percent_define_ifdef([[location_type]], [$1], [$2])])
# b4_identification
# -----------------
m4_define([b4_identification],
[[/** Version number for the Bison executable that generated this parser. */
public static immutable string yy_bison_version = "]b4_version_string[";
/** Name of the skeleton that generated this parser. */
public static immutable string yy_bison_skeleton = ]b4_skeleton[;
]])
## ------------ ##
## Data types. ##
## ------------ ##
# b4_int_type(MIN, MAX)
# ---------------------
# Return the smallest int type able to handle numbers ranging from
# MIN to MAX (included).
m4_define([b4_int_type],
[m4_if(b4_ints_in($@, [-128], [127]), [1], [byte],
b4_ints_in($@, [-32768], [32767]), [1], [short],
[int])])
# b4_int_type_for(NAME)
# ---------------------
# Return the smallest int type able to handle numbers ranging from
# `NAME_min' to `NAME_max' (included).
m4_define([b4_int_type_for],
[b4_int_type($1_min, $1_max)])
# b4_null
# -------
m4_define([b4_null], [null])
# b4_integral_parser_table_define(NAME, DATA, COMMENT)
#-----------------------------------------------------
# Define "yy<TABLE-NAME>" whose contents is CONTENT.
m4_define([b4_integral_parser_table_define],
[m4_ifvaln([$3], [b4_comment([$3], [ ])])dnl
private static immutable b4_int_type_for([$2])[[]] yy$1_ =
@{
$2
@};dnl
])
## ------------- ##
## Token kinds. ##
## ------------- ##
m4_define([b4_symbol(-2, id)], [[YYEMPTY]])
b4_percent_define_default([[api.token.raw]], [[true]])
# b4_token_enum(TOKEN-NAME, TOKEN-NUMBER)
# ---------------------------------------
# Output the definition of this token as an enum.
m4_define([b4_token_enum],
[b4_token_format([ %s = %s,
], [$1])])
# b4_token_enums
# --------------
# Output the definition of the tokens as enums.
m4_define([b4_token_enums],
[/* Token kinds. */
public enum TokenKind {
]b4_symbol(empty, id)[ = -2,
b4_symbol_foreach([b4_token_enum])dnl
}
])
# b4_symbol_translate(STRING)
# ---------------------------
# Used by "bison" in the array of symbol names to mark those that
# require translation.
m4_define([b4_symbol_translate],
[[_($1)]])
# _b4_token_constructor_define(SYMBOL-NUM)
# ----------------------------------------
# Define Symbol.FOO for SYMBOL-NUM.
m4_define([_b4_token_constructor_define],
[b4_token_visible_if([$1],
[[
static auto ]b4_symbol([$1], [id])[(]b4_symbol_if([$1], [has_type],
[b4_union_if([b4_symbol([$1], [type]],
[[typeof(YYSemanticType.]b4_symbol([$1], [type])[]])) [val]])dnl
[]b4_locations_if([b4_symbol_if([$1], [has_type], [[, ]])[Location l]])[)
{
return Symbol(TokenKind.]b4_symbol([$1], [id])[]b4_symbol_if([$1], [has_type],
[[, val]])[]b4_locations_if([[, l]])[);
}]])])
# b4_token_constructor_define
# ---------------------------
# Define Symbol.FOO for each token kind FOO.
m4_define([b4_token_constructor_define],
[[
/* Implementation of token constructors for each symbol type visible to
* the user. The code generates static methods that have the same names
* as the TokenKinds.
*/]b4_symbol_foreach([_b4_token_constructor_define])dnl
])
## -------------- ##
## Symbol kinds. ##
## -------------- ##
# b4_symbol_kind(NUM)
# -------------------
m4_define([b4_symbol_kind],
[SymbolKind.b4_symbol_kind_base($@)])
# b4_symbol_enum(SYMBOL-NUM)
# --------------------------
# Output the definition of this symbol as an enum.
m4_define([b4_symbol_enum],
[m4_format([ %-30s %s],
m4_format([[%s = %s,]],
b4_symbol([$1], [kind_base]),
[$1]),
[b4_symbol_tag_comment([$1])])])
# b4_declare_symbol_enum
# ----------------------
# The definition of the symbol internal numbers as an enum.
# Defining YYEMPTY here is important: it forces the compiler
# to use a signed type, which matters for yytoken.
m4_define([b4_declare_symbol_enum],
[[ /* Symbol kinds. */
struct SymbolKind
{
enum
{
]b4_symbol(empty, kind_base)[ = -2, /* No symbol. */
]b4_symbol_foreach([b4_symbol_enum])dnl
[ }
private int yycode_;
alias yycode_ this;
this(int code)
{
yycode_ = code;
}
/* Return YYSTR after stripping away unnecessary quotes and
backslashes, so that it's suitable for yyerror. The heuristic is
that double-quoting is unnecessary unless the string contains an
apostrophe, a comma, or backslash (other than backslash-backslash).
YYSTR is taken from yytname. */
final void toString(W)(W sink) const
if (isOutputRange!(W, char))
{
immutable string[] yy_sname = @{
]b4_symbol_names[
@};]b4_has_translations_if([[
/* YYTRANSLATABLE[SYMBOL-NUM] -- Whether YY_SNAME[SYMBOL-NUM] is
internationalizable. */
immutable ]b4_int_type_for([b4_translatable])[[] yytranslatable = @{
]b4_translatable[
@};]])[
put(sink, yy_sname[yycode_]);
}
}
]])
# b4_case(ID, CODE, [COMMENTS])
# -----------------------------
m4_define([b4_case], [ case $1:m4_ifval([$3], [ b4_comment([$3])])
$2
break;])
## ---------------- ##
## Default values. ##
## ---------------- ##
m4_define([b4_yystype], [b4_percent_define_get([[stype]])])
b4_percent_define_default([[stype]], [[YYSemanticType]])])
# %name-prefix
m4_define_default([b4_prefix], [[YY]])
b4_percent_define_default([[api.parser.class]], [b4_prefix[]Parser])])
m4_define([b4_parser_class], [b4_percent_define_get([[api.parser.class]])])
#b4_percent_define_default([[location_type]], [Location])])
m4_define([b4_location_type], b4_percent_define_ifdef([[location_type]],[b4_percent_define_get([[location_type]])],[YYLocation]))
#b4_percent_define_default([[position_type]], [Position])])
m4_define([b4_position_type], b4_percent_define_ifdef([[position_type]],[b4_percent_define_get([[position_type]])],[YYPosition]))
## ---------------- ##
## api.value.type. ##
## ---------------- ##
# ---------------------- #
# api.value.type=union. #
# ---------------------- #
# b4_symbol_type_register(SYMBOL-NUM)
# -----------------------------------
# Symbol SYMBOL-NUM has a type (for union) instead of a type-tag.
# Extend the definition of %union's body (b4_union_members) with a
# field of that type, and extend the symbol's "type" field to point to
# the field name, instead of the type name.
m4_define([b4_symbol_type_register],
[m4_define([b4_symbol($1, type_tag)],
[b4_symbol_if([$1], [has_id],
[b4_symbol([$1], [id])],
[yykind_[]b4_symbol([$1], [number])])])dnl
m4_append([b4_union_members],
m4_expand([m4_format([ %-40s %s],
m4_expand([b4_symbol([$1], [type]) b4_symbol([$1], [type_tag]);]),
[b4_symbol_tag_comment([$1])])]))
])
# b4_type_define_tag(SYMBOL1-NUM, ...)
# ------------------------------------
# For the batch of symbols SYMBOL1-NUM... (which all have the same
# type), enhance the %union definition for each of them, and set
# there "type" field to the field tag name, instead of the type name.
m4_define([b4_type_define_tag],
[b4_symbol_if([$1], [has_type],
[m4_map([b4_symbol_type_register], [$@])])
])
# b4_symbol_value_union(VAL, SYMBOL-NUM, [TYPE])
# ----------------------------------------------
# Same of b4_symbol_value, but when api.value.type=union.
m4_define([b4_symbol_value_union],
[m4_ifval([$3],
[(*($3*)(&$1))],
[m4_ifval([$2],
[b4_symbol_if([$2], [has_type],
[($1.b4_symbol([$2], [type_tag]))],
[$1])],
[$1])])])
# b4_value_type_setup_union
# -------------------------
# Setup support for api.value.type=union. Symbols are defined with a
# type instead of a union member name: build the corresponding union,
# and give the symbols their tag.
m4_define([b4_value_type_setup_union],
[m4_define([b4_union_members])
b4_type_foreach([b4_type_define_tag])
m4_copy_force([b4_symbol_value_union], [b4_symbol_value])
])
# _b4_value_type_setup_keyword
# ----------------------------
# api.value.type is defined with a keyword/string syntax. Check if
# that is properly defined, and prepare its use.
m4_define([_b4_value_type_setup_keyword],
[b4_percent_define_check_values([[[[api.value.type]],
[[none]],
[[union]],
[[union-directive]],
[[yystype]]]])dnl
m4_case(b4_percent_define_get([[api.value.type]]),
[union], [b4_value_type_setup_union])])
# b4_value_type_setup
# -------------------
# Check if api.value.type is properly defined, and possibly prepare
# its use.
b4_define_silent([b4_value_type_setup],
[
# Define default value.
b4_percent_define_ifdef([[api.value.type]], [],
[# %union => api.value.type=union-directive
m4_ifdef([b4_union_members],
[m4_define([b4_percent_define_kind(api.value.type)], [keyword])
m4_define([b4_percent_define(api.value.type)], [union-directive])],
[# no tag seen => api.value.type={int}
m4_if(b4_tag_seen_flag, 0,
[m4_define([b4_percent_define_kind(api.value.type)], [code])
m4_define([b4_percent_define(api.value.type)], [int])],
[# otherwise api.value.type=yystype
m4_define([b4_percent_define_kind(api.value.type)], [keyword])
m4_define([b4_percent_define(api.value.type)], [yystype])])])])
# Set up.
m4_bmatch(b4_percent_define_get_kind([[api.value.type]]),
[keyword], [_b4_value_type_setup_keyword])
])
## ----------------- ##
## Semantic Values. ##
## ----------------- ##
# b4_symbol_value(VAL, [SYMBOL-NUM], [TYPE-TAG])
# ----------------------------------------------
# See README. FIXME: factor in c-like?
m4_define([b4_symbol_value],
[m4_ifval([$3],
[($1.$3)],
[m4_ifval([$2],
[b4_symbol_if([$2], [has_type],
[($1.b4_symbol([$2], [type]))],
[$1])],
[$1])])])
# b4_lhs_value(SYMBOL-NUM, [TYPE])
# --------------------------------
# See README.
m4_define([b4_lhs_value],
[b4_symbol_value([yyval], [$1], [$2])])
# b4_rhs_value(RULE-LENGTH, POS, SYMBOL-NUM, [TYPE])
# --------------------------------------------------
# See README.
#
# In this simple implementation, %token and %type have class names
# between the angle brackets.
m4_define([b4_rhs_value],
[b4_symbol_value([(yystack.valueAt (b4_subtract([$1], [$2])))], [$3], [$4])])
# b4_lhs_location()
# -----------------
# Expansion of @$.
m4_define([b4_lhs_location],
[(yyloc)])
# b4_rhs_location(RULE-LENGTH, POS)
# ---------------------------------
# Expansion of @POS, where the current rule has RULE-LENGTH symbols
# on RHS.
m4_define([b4_rhs_location],
[yystack.locationAt (b4_subtract($@))])
# b4_lex_param
# b4_parse_param
# --------------
# If defined, b4_lex_param arrives double quoted, but below we prefer
# it to be single quoted. Same for b4_parse_param.
# TODO: should be in bison.m4
m4_define_default([b4_lex_param], [[]]))
m4_define([b4_lex_param], b4_lex_param))
m4_define([b4_parse_param], b4_parse_param))
# b4_lex_param_decl
# -------------------
# Extra formal arguments of the constructor.
m4_define([b4_lex_param_decl],
[m4_ifset([b4_lex_param],
[b4_remove_comma([$1],
b4_param_decls(b4_lex_param))],
[$1])])
m4_define([b4_param_decls],
[m4_map([b4_param_decl], [$@])])
m4_define([b4_param_decl], [, $1])
m4_define([b4_remove_comma], [m4_ifval(m4_quote($1), [$1, ], [])m4_shift2($@)])
# b4_parse_param_decl
# -------------------
# Extra formal arguments of the constructor.
m4_define([b4_parse_param_decl],
[m4_ifset([b4_parse_param],
[b4_remove_comma([$1],
b4_param_decls(b4_parse_param))],
[$1])])
# b4_lex_param_call
# -------------------
# Delegating the lexer parameters to the lexer constructor.
m4_define([b4_lex_param_call],
[m4_ifset([b4_lex_param],
[b4_remove_comma([$1],
b4_param_calls(b4_lex_param))],
[$1])])
m4_define([b4_param_calls],
[m4_map([b4_param_call], [$@])])
m4_define([b4_param_call], [, $2])
# b4_parse_param_cons
# -------------------
# Extra initialisations of the constructor.
m4_define([b4_parse_param_cons],
[m4_ifset([b4_parse_param],
[b4_constructor_calls(b4_parse_param)])])
m4_define([b4_constructor_calls],
[m4_map([b4_constructor_call], [$@])])
m4_define([b4_constructor_call],
[this.$2 = $2;
])
# b4_parse_param_vars
# -------------------
# Extra instance variables.
m4_define([b4_parse_param_vars],
[m4_ifset([b4_parse_param],
[
/* User arguments. */
b4_var_decls(b4_parse_param)])])
m4_define([b4_var_decls],
[m4_map_sep([b4_var_decl], [
], [$@])])
m4_define([b4_var_decl],
[ protected $1;])
# b4_public_types_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],
[[
alias Symbol = ]b4_parser_class[.Symbol;
alias Value = ]b4_yystype[;]b4_locations_if([[
alias Location = ]b4_location_type[;
alias Position = ]b4_position_type[;]b4_push_if([[
alias PUSH_MORE = ]b4_parser_class[.YYPUSH_MORE;
alias ABORT = ]b4_parser_class[.YYABORT;
alias ACCEPT = ]b4_parser_class[.YYACCEPT;]])[]])[
]])
# b4_basic_symbol_constructor_define
# ----------------------------------
# Create Symbol struct constructors for all the visible types.
m4_define([b4_basic_symbol_constructor_define],
[b4_token_visible_if([$1],
[[ this(TokenKind token]b4_symbol_if([$1], [has_type],
[[, ]b4_union_if([], [[typeof(YYSemanticType.]])b4_symbol([$1], [type])dnl
[]b4_union_if([], [[) ]])[ val]])[]b4_locations_if([[, Location loc]])[)
{
kind = yytranslate_(token);]b4_union_if([b4_symbol_if([$1], [has_type], [[
static foreach (member; __traits(allMembers, YYSemanticType))
{
static if (is(typeof(mixin("value_." ~ member)) == ]b4_symbol([$1], [type])[))
{
mixin("value_." ~ member ~ " = val;");
}
}]])], [b4_symbol_if([$1], [has_type], [[
value_.]b4_symbol([$1], [type])[ = val;]])])[]b4_locations_if([
location_ = loc;])[
}
]])])
# b4_symbol_type_define
# ---------------------
# Define symbol_type, the external type for symbols used for symbol
# constructors.
m4_define([b4_symbol_type_define],
[[
/**
* A complete symbol
*/
struct Symbol
{
private SymbolKind kind;
private Value value_;]b4_locations_if([[
private Location location_;]])[
]b4_type_foreach([b4_basic_symbol_constructor_define])[
SymbolKind token() { return kind; }
Value value() { return value_; }]b4_locations_if([[
Location location() { return location_; }]])[
]b4_token_ctor_if([b4_token_constructor_define])[
}
]])

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# C++ GLR skeleton for Bison
# Copyright (C) 2002-2015, 2018-2021 Free Software Foundation, Inc.
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <https://www.gnu.org/licenses/>.
# This skeleton produces a C++ class that encapsulates a C glr parser.
# This is in order to reduce the maintenance burden. The glr.c
# skeleton is clean and pure enough so that there are no real
# problems. The C++ interface is the same as that of lalr1.cc. In
# fact, glr.c can replace yacc.c without the user noticing any
# difference, and similarly for glr.cc replacing lalr1.cc.
#
# The passing of parse-params
#
# The additional arguments are stored as members of the parser
# object, yyparser. The C routines need to carry yyparser
# throughout the C parser; that's easy: make yyparser an
# additional parse-param. But because the C++ skeleton needs to
# know the "real" original parse-param, we save them
# (b4_parse_param_orig). Note that b4_parse_param is overquoted
# (and c.m4 strips one level of quotes). This is a PITA, and
# explains why there are so many levels of quotes.
#
# The locations
#
# We use location.cc just like lalr1.cc, but because glr.c stores
# the locations in a union, the position and location classes
# must not have a constructor. Therefore, contrary to lalr1.cc, we
# must not define "b4_location_constructors". As a consequence the
# user must initialize the first positions (in particular the
# filename member).
# We require a pure interface.
m4_define([b4_pure_flag], [1])
m4_include(b4_skeletonsdir/[c++.m4])
b4_bison_locations_if([m4_include(b4_skeletonsdir/[location.cc])])
m4_define([b4_parser_class],
[b4_percent_define_get([[api.parser.class]])])
# Save the parse parameters.
m4_define([b4_parse_param_orig], m4_defn([b4_parse_param]))
# b4_parse_param_wrap
# -------------------
# New ones.
m4_ifset([b4_parse_param],
[m4_define([b4_parse_param_wrap],
[[b4_namespace_ref::b4_parser_class[& yyparser], [[yyparser]]],]
m4_defn([b4_parse_param]))],
[m4_define([b4_parse_param_wrap],
[[b4_namespace_ref::b4_parser_class[& yyparser], [[yyparser]]]])
])
# b4_yy_symbol_print_define
# -------------------------
# Bypass the default implementation to generate the "yy_symbol_print"
# and "yy_symbol_value_print" functions.
m4_define([b4_yy_symbol_print_define],
[[/*--------------------.
| Print this symbol. |
`--------------------*/
static void
yy_symbol_print (FILE *, ]b4_namespace_ref::b4_parser_class[::symbol_kind_type yytoken,
const ]b4_namespace_ref::b4_parser_class[::value_type *yyvaluep]b4_locations_if([[,
const ]b4_namespace_ref::b4_parser_class[::location_type *yylocationp]])[]b4_user_formals[)
{
]b4_parse_param_use[]dnl
[ yyparser.yy_symbol_print_ (yytoken, yyvaluep]b4_locations_if([, yylocationp])[);
}
]])[
# Hijack the initial action to initialize the locations.
]b4_bison_locations_if([m4_define([b4_initial_action],
[yylloc.initialize ();]m4_ifdef([b4_initial_action], [
m4_defn([b4_initial_action])]))])[
# Hijack the post prologue to declare yyerror.
]m4_append([b4_post_prologue],
[b4_syncline([@oline@], [@ofile@])dnl
[static void
yyerror (]b4_locations_if([[const ]b4_namespace_ref::b4_parser_class[::location_type *yylocationp,
]])[]m4_ifset([b4_parse_param], [b4_formals(b4_parse_param),
])[const char* msg);]])[
# Inserted before the epilogue to define implementations (yyerror, parser member
# functions etc.).
]m4_define([b4_glr_cc_pre_epilogue],
[b4_syncline([@oline@], [@ofile@])dnl
[
/*------------------.
| Report an error. |
`------------------*/
static void
yyerror (]b4_locations_if([[const ]b4_namespace_ref::b4_parser_class[::location_type *yylocationp,
]])[]m4_ifset([b4_parse_param], [b4_formals(b4_parse_param),
])[const char* msg)
{
]b4_parse_param_use[]dnl
[ yyparser.error (]b4_locations_if([[*yylocationp, ]])[msg);
}
]b4_namespace_open[
]dnl In this section, the parse params are the original parse_params.
m4_pushdef([b4_parse_param], m4_defn([b4_parse_param_orig]))dnl
[ /// Build a parser object.
]b4_parser_class::b4_parser_class[ (]b4_parse_param_decl[)]m4_ifset([b4_parse_param], [
:])[
#if ]b4_api_PREFIX[DEBUG
]m4_ifset([b4_parse_param], [ ], [ :])[yycdebug_ (&std::cerr)]m4_ifset([b4_parse_param], [,])[
#endif]b4_parse_param_cons[
{}
]b4_parser_class::~b4_parser_class[ ()
{}
]b4_parser_class[::syntax_error::~syntax_error () YY_NOEXCEPT YY_NOTHROW
{}
int
]b4_parser_class[::operator() ()
{
return parse ();
}
int
]b4_parser_class[::parse ()
{
return ::yy_parse_impl (*this]b4_user_args[);
}
#if ]b4_api_PREFIX[DEBUG
/*--------------------.
| Print this symbol. |
`--------------------*/
void
]b4_parser_class[::yy_symbol_value_print_ (symbol_kind_type yykind,
const value_type* yyvaluep]b4_locations_if([[,
const location_type* yylocationp]])[) const
{]b4_locations_if([[
YY_USE (yylocationp);]])[
YY_USE (yyvaluep);
std::ostream& yyo = debug_stream ();
std::ostream& yyoutput = yyo;
YY_USE (yyoutput);
]b4_symbol_actions([printer])[
}
void
]b4_parser_class[::yy_symbol_print_ (symbol_kind_type yykind,
const value_type* yyvaluep]b4_locations_if([[,
const location_type* yylocationp]])[) const
{
*yycdebug_ << (yykind < YYNTOKENS ? "token" : "nterm")
<< ' ' << yysymbol_name (yykind) << " ("]b4_locations_if([[
<< *yylocationp << ": "]])[;
yy_symbol_value_print_ (yykind, yyvaluep]b4_locations_if([[, yylocationp]])[);
*yycdebug_ << ')';
}
std::ostream&
]b4_parser_class[::debug_stream () const
{
return *yycdebug_;
}
void
]b4_parser_class[::set_debug_stream (std::ostream& o)
{
yycdebug_ = &o;
}
]b4_parser_class[::debug_level_type
]b4_parser_class[::debug_level () const
{
return yydebug;
}
void
]b4_parser_class[::set_debug_level (debug_level_type l)
{
// Actually, it is yydebug which is really used.
yydebug = l;
}
#endif
]m4_popdef([b4_parse_param])dnl
b4_namespace_close[]dnl
])
m4_define([b4_define_symbol_kind],
[m4_format([#define %-15s %s],
b4_symbol($][1, kind_base),
b4_namespace_ref[::]b4_parser_class[::symbol_kind::]b4_symbol($1, kind_base))
])
# b4_glr_cc_setup
# ---------------
# Setup redirections for glr.c: Map the names used in c.m4 to the ones used
# in c++.m4.
m4_define([b4_glr_cc_setup],
[[]b4_attribute_define[
]b4_null_define[
// This skeleton is based on C, yet compiles it as C++.
// So expect warnings about C style casts.
#if defined __clang__ && 306 <= __clang_major__ * 100 + __clang_minor__
# pragma clang diagnostic ignored "-Wold-style-cast"
#elif defined __GNUC__ && 406 <= __GNUC__ * 100 + __GNUC_MINOR__
# pragma GCC diagnostic ignored "-Wold-style-cast"
#endif
// On MacOS, PTRDIFF_MAX is defined as long long, which Clang's
// -pedantic reports as being a C++11 extension.
#if defined __APPLE__ && YY_CPLUSPLUS < 201103L \
&& defined __clang__ && 4 <= __clang_major__
# pragma clang diagnostic ignored "-Wc++11-long-long"
#endif
#undef ]b4_symbol(empty, [id])[
#define ]b4_symbol(empty, [id])[ ]b4_namespace_ref[::]b4_parser_class[::token::]b4_symbol(empty, [id])[
#undef ]b4_symbol(eof, [id])[
#define ]b4_symbol(eof, [id])[ ]b4_namespace_ref[::]b4_parser_class[::token::]b4_symbol(eof, [id])[
#undef ]b4_symbol(error, [id])[
#define ]b4_symbol(error, [id])[ ]b4_namespace_ref[::]b4_parser_class[::token::]b4_symbol(error, [id])[
#ifndef ]b4_api_PREFIX[STYPE
# define ]b4_api_PREFIX[STYPE ]b4_namespace_ref[::]b4_parser_class[::value_type
#endif
#ifndef ]b4_api_PREFIX[LTYPE
# define ]b4_api_PREFIX[LTYPE ]b4_namespace_ref[::]b4_parser_class[::location_type
#endif
typedef ]b4_namespace_ref[::]b4_parser_class[::symbol_kind_type yysymbol_kind_t;
// Expose C++ symbol kinds to C.
]b4_define_symbol_kind(-2)dnl
b4_symbol_foreach([b4_define_symbol_kind])])[
]])
m4_define([b4_undef_symbol_kind],
[[#undef ]b4_symbol($1, kind_base)[
]])
# b4_glr_cc_cleanup
# -----------------
# Remove redirections for glr.c.
m4_define([b4_glr_cc_cleanup],
[[#undef ]b4_symbol(empty, [id])[
#undef ]b4_symbol(eof, [id])[
#undef ]b4_symbol(error, [id])[
]b4_undef_symbol_kind(-2)dnl
b4_symbol_foreach([b4_undef_symbol_kind])dnl
])
# b4_shared_declarations(hh|cc)
# -----------------------------
# Declaration that might either go into the header (if --header, $1 = hh)
# or in the implementation file.
m4_define([b4_shared_declarations],
[m4_pushdef([b4_parse_param], m4_defn([b4_parse_param_orig]))dnl
b4_percent_code_get([[requires]])[
#include <iostream>
#include <stdexcept>
#include <string>
]b4_cxx_portability[
]m4_ifdef([b4_location_include],
[[# include ]b4_location_include])[
]b4_variant_if([b4_variant_includes])[
// Whether we are compiled with exception support.
#ifndef YY_EXCEPTIONS
# if defined __GNUC__ && !defined __EXCEPTIONS
# define YY_EXCEPTIONS 0
# else
# define YY_EXCEPTIONS 1
# endif
#endif
]b4_YYDEBUG_define[
]b4_namespace_open[
]b4_bison_locations_if([m4_ifndef([b4_location_file],
[b4_location_define])])[
/// A Bison parser.
class ]b4_parser_class[
{
public:
]b4_public_types_declare[
/// Build a parser object.
]b4_parser_class[ (]b4_parse_param_decl[);
virtual ~]b4_parser_class[ ();
/// Parse. An alias for parse ().
/// \returns 0 iff parsing succeeded.
int operator() ();
/// Parse.
/// \returns 0 iff parsing succeeded.
virtual int parse ();
#if ]b4_api_PREFIX[DEBUG
/// The current debugging stream.
std::ostream& debug_stream () const;
/// Set the current debugging stream.
void set_debug_stream (std::ostream &);
/// Type for debugging levels.
typedef int debug_level_type;
/// The current debugging level.
debug_level_type debug_level () const;
/// Set the current debugging level.
void set_debug_level (debug_level_type l);
#endif
/// Report a syntax error.]b4_locations_if([[
/// \param loc where the syntax error is found.]])[
/// \param msg a description of the syntax error.
virtual void error (]b4_locations_if([[const location_type& loc, ]])[const std::string& msg);
# if ]b4_api_PREFIX[DEBUG
public:
/// \brief Report a symbol value on the debug stream.
/// \param yykind The symbol kind.
/// \param yyvaluep Its semantic value.]b4_locations_if([[
/// \param yylocationp Its location.]])[
virtual void yy_symbol_value_print_ (symbol_kind_type yykind,
const value_type* yyvaluep]b4_locations_if([[,
const location_type* yylocationp]])[) const;
/// \brief Report a symbol on the debug stream.
/// \param yykind The symbol kind.
/// \param yyvaluep Its semantic value.]b4_locations_if([[
/// \param yylocationp Its location.]])[
virtual void yy_symbol_print_ (symbol_kind_type yykind,
const value_type* yyvaluep]b4_locations_if([[,
const location_type* yylocationp]])[) const;
private:
/// Debug stream.
std::ostream* yycdebug_;
#endif
]b4_parse_param_vars[
};
]b4_namespace_close[
]b4_percent_code_get([[provides]])[
]m4_popdef([b4_parse_param])dnl
])[
]b4_header_if(
[b4_output_begin([b4_spec_header_file])
b4_copyright([Skeleton interface for Bison GLR parsers in C++],
[2002-2015, 2018-2021])[
// C++ GLR parser skeleton written by Akim Demaille.
]b4_disclaimer[
]b4_cpp_guard_open([b4_spec_mapped_header_file])[
]b4_shared_declarations[
]b4_cpp_guard_close([b4_spec_mapped_header_file])[
]b4_output_end])
# Let glr.c (and b4_shared_declarations) believe that the user
# arguments include the parser itself.
m4_pushdef([b4_parse_param], m4_defn([b4_parse_param_wrap]))
m4_include(b4_skeletonsdir/[glr.c])
m4_popdef([b4_parse_param])

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-*- Autoconf -*-
# Java skeleton dispatching for Bison.
# Copyright (C) 2007, 2009-2015, 2018-2021 Free Software Foundation,
# Inc.
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <https://www.gnu.org/licenses/>.
b4_glr_if( [b4_complain([%%glr-parser not supported for Java])])
b4_nondeterministic_if([b4_complain([%%nondeterministic-parser not supported for Java])])
m4_define_default([b4_used_skeleton], [b4_skeletonsdir/[lalr1.java]])
m4_define_default([b4_skeleton], ["b4_basename(b4_used_skeleton)"])
m4_include(b4_used_skeleton)

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-*- Autoconf -*-
# Java language support for Bison
# Copyright (C) 2007-2015, 2018-2021 Free Software Foundation, Inc.
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <https://www.gnu.org/licenses/>.
m4_include(b4_skeletonsdir/[c-like.m4])
# b4_list2(LIST1, LIST2)
# ----------------------
# Join two lists with a comma if necessary.
m4_define([b4_list2],
[$1[]m4_ifval(m4_quote($1), [m4_ifval(m4_quote($2), [[, ]])])[]$2])
# b4_percent_define_get3(DEF, PRE, POST, NOT)
# -------------------------------------------
# Expand to the value of DEF surrounded by PRE and POST if it's %define'ed,
# otherwise NOT.
m4_define([b4_percent_define_get3],
[m4_ifval(m4_quote(b4_percent_define_get([$1])),
[$2[]b4_percent_define_get([$1])[]$3], [$4])])
# b4_flag_value(BOOLEAN-FLAG)
# ---------------------------
m4_define([b4_flag_value], [b4_flag_if([$1], [true], [false])])
# b4_parser_class_declaration
# ---------------------------
# The declaration of the parser class ("class YYParser"), with all its
# qualifiers/annotations.
b4_percent_define_default([[api.parser.abstract]], [[false]])
b4_percent_define_default([[api.parser.final]], [[false]])
b4_percent_define_default([[api.parser.public]], [[false]])
b4_percent_define_default([[api.parser.strictfp]], [[false]])
m4_define([b4_parser_class_declaration],
[b4_percent_define_get3([api.parser.annotations], [], [ ])dnl
b4_percent_define_flag_if([api.parser.public], [public ])dnl
b4_percent_define_flag_if([api.parser.abstract], [abstract ])dnl
b4_percent_define_flag_if([api.parser.final], [final ])dnl
b4_percent_define_flag_if([api.parser.strictfp], [strictfp ])dnl
[class ]b4_parser_class[]dnl
b4_percent_define_get3([api.parser.extends], [ extends ])dnl
b4_percent_define_get3([api.parser.implements], [ implements ])])
# b4_lexer_if(TRUE, FALSE)
# ------------------------
m4_define([b4_lexer_if],
[b4_percent_code_ifdef([[lexer]], [$1], [$2])])
# b4_identification
# -----------------
m4_define([b4_identification],
[[ /** Version number for the Bison executable that generated this parser. */
public static final String bisonVersion = "]b4_version_string[";
/** Name of the skeleton that generated this parser. */
public static final String bisonSkeleton = ]b4_skeleton[;
]])
## ------------ ##
## Data types. ##
## ------------ ##
# b4_int_type(MIN, MAX)
# ---------------------
# Return the smallest int type able to handle numbers ranging from
# MIN to MAX (included).
m4_define([b4_int_type],
[m4_if(b4_ints_in($@, [-128], [127]), [1], [byte],
b4_ints_in($@, [-32768], [32767]), [1], [short],
[int])])
# b4_int_type_for(NAME)
# ---------------------
# Return the smallest int type able to handle numbers ranging from
# 'NAME_min' to 'NAME_max' (included).
m4_define([b4_int_type_for],
[b4_int_type($1_min, $1_max)])
# b4_null
# -------
m4_define([b4_null], [null])
# b4_typed_parser_table_define(TYPE, NAME, DATA, COMMENT)
# -------------------------------------------------------
# We use intermediate functions (e.g., yypact_init) to work around the
# 64KB limit for JVM methods. See
# https://lists.gnu.org/r/help-bison/2008-11/msg00004.html.
m4_define([b4_typed_parser_table_define],
[m4_ifval([$4], [b4_comment([$4])
])dnl
[private static final ]$1[[] yy$2_ = yy$2_init();
private static final ]$1[[] yy$2_init()
{
return new ]$1[[]
{
]$3[
};
}]])
# b4_integral_parser_table_define(NAME, DATA, COMMENT)
#-----------------------------------------------------
m4_define([b4_integral_parser_table_define],
[b4_typed_parser_table_define([b4_int_type_for([$2])], [$1], [$2], [$3])])
## ------------- ##
## Token kinds. ##
## ------------- ##
# b4_token_enum(TOKEN-NUM)
# ------------------------
# Output the definition of this token as an enum.
m4_define([b4_token_enum],
[b4_token_visible_if([$1],
[m4_format([[ /** Token %s, to be returned by the scanner. */
static final int %s = %s%s;
]],
b4_symbol([$1], [tag]),
b4_symbol([$1], [id]),
b4_symbol([$1], b4_api_token_raw_if([[number]], [[code]])))])])
# b4_token_enums
# --------------
# Output the definition of the tokens (if there are) as enums.
m4_define([b4_token_enums],
[b4_any_token_visible_if([ /* Token kinds. */
b4_symbol_foreach([b4_token_enum])])])
## -------------- ##
## Symbol kinds. ##
## -------------- ##
# b4_symbol_kind(NUM)
# -------------------
m4_define([b4_symbol_kind],
[SymbolKind.b4_symbol_kind_base($@)])
# b4_symbol_enum(SYMBOL-NUM)
# --------------------------
# Output the definition of this symbol as an enum.
m4_define([b4_symbol_enum],
[m4_format([ %-30s %s],
m4_format([[%s(%s)%s]],
b4_symbol([$1], [kind_base]),
[$1],
m4_if([$1], b4_last_symbol, [[;]], [[,]])),
[b4_symbol_tag_comment([$1])])])
# b4_declare_symbol_enum
# ----------------------
# The definition of the symbol internal numbers as an enum.
m4_define([b4_declare_symbol_enum],
[[ public enum SymbolKind
{
]b4_symbol_foreach([b4_symbol_enum])[
private final int yycode_;
SymbolKind (int n) {
this.yycode_ = n;
}
private static final SymbolKind[] values_ = {
]m4_map_args_sep([b4_symbol_kind(], [)], [,
], b4_symbol_numbers)[
};
static final SymbolKind get(int code) {
return values_[code];
}
public final int getCode() {
return this.yycode_;
}
]b4_parse_error_bmatch(
[simple\|verbose],
[[ /* Return YYSTR after stripping away unnecessary quotes and
backslashes, so that it's suitable for yyerror. The heuristic is
that double-quoting is unnecessary unless the string contains an
apostrophe, a comma, or backslash (other than backslash-backslash).
YYSTR is taken from yytname. */
private static String yytnamerr_(String yystr)
{
if (yystr.charAt (0) == '"')
{
StringBuffer yyr = new StringBuffer();
strip_quotes: for (int i = 1; i < yystr.length(); i++)
switch (yystr.charAt(i))
{
case '\'':
case ',':
break strip_quotes;
case '\\':
if (yystr.charAt(++i) != '\\')
break strip_quotes;
/* Fall through. */
default:
yyr.append(yystr.charAt(i));
break;
case '"':
return yyr.toString();
}
}
return yystr;
}
/* YYTNAME[SYMBOL-NUM] -- String name of the symbol SYMBOL-NUM.
First, the terminals, then, starting at \a YYNTOKENS_, nonterminals. */
]b4_typed_parser_table_define([String], [tname], [b4_tname])[
/* The user-facing name of this symbol. */
public final String getName() {
return yytnamerr_(yytname_[yycode_]);
}
]],
[custom\|detailed],
[[ /* YYNAMES_[SYMBOL-NUM] -- String name of the symbol SYMBOL-NUM.
First, the terminals, then, starting at \a YYNTOKENS_, nonterminals. */
]b4_typed_parser_table_define([String], [names], [b4_symbol_names])[
/* The user-facing name of this symbol. */
public final String getName() {
return yynames_[yycode_];
}]])[
};
]])])
# b4_case(ID, CODE, [COMMENTS])
# -----------------------------
# We need to fool Java's stupid unreachable code detection.
m4_define([b4_case],
[ case $1:m4_ifval([$3], [ b4_comment([$3])])
if (yyn == $1)
$2;
break;
])
# b4_predicate_case(LABEL, CONDITIONS)
# ------------------------------------
m4_define([b4_predicate_case],
[ case $1:
if (! ($2)) YYERROR;
break;
])
## -------- ##
## Checks. ##
## -------- ##
b4_percent_define_check_kind([[api.value.type]], [code], [deprecated])
b4_percent_define_check_kind([[annotations]], [code], [deprecated])
b4_percent_define_check_kind([[extends]], [code], [deprecated])
b4_percent_define_check_kind([[implements]], [code], [deprecated])
b4_percent_define_check_kind([[init_throws]], [code], [deprecated])
b4_percent_define_check_kind([[lex_throws]], [code], [deprecated])
b4_percent_define_check_kind([[api.parser.class]], [code], [deprecated])
b4_percent_define_check_kind([[throws]], [code], [deprecated])
## ---------------- ##
## Default values. ##
## ---------------- ##
m4_define([b4_yystype], [b4_percent_define_get([[api.value.type]])])
b4_percent_define_default([[api.value.type]], [[Object]])
b4_percent_define_default([[api.symbol.prefix]], [[S_]])
# b4_api_prefix, b4_api_PREFIX
# ----------------------------
# Corresponds to %define api.prefix
b4_percent_define_default([[api.prefix]], [[YY]])
m4_define([b4_api_prefix],
[b4_percent_define_get([[api.prefix]])])
m4_define([b4_api_PREFIX],
[m4_toupper(b4_api_prefix)])
# b4_prefix
# ---------
# If the %name-prefix is not given, it is api.prefix.
m4_define_default([b4_prefix], [b4_api_prefix])
b4_percent_define_default([[api.parser.class]], [b4_prefix[]Parser])
m4_define([b4_parser_class], [b4_percent_define_get([[api.parser.class]])])
b4_percent_define_default([[lex_throws]], [[java.io.IOException]])
m4_define([b4_lex_throws], [b4_percent_define_get([[lex_throws]])])
b4_percent_define_default([[throws]], [])
m4_define([b4_throws], [b4_percent_define_get([[throws]])])
b4_percent_define_default([[init_throws]], [])
m4_define([b4_init_throws], [b4_percent_define_get([[init_throws]])])
b4_percent_define_default([[api.location.type]], [Location])
m4_define([b4_location_type], [b4_percent_define_get([[api.location.type]])])
b4_percent_define_default([[api.position.type]], [Position])
m4_define([b4_position_type], [b4_percent_define_get([[api.position.type]])])
## ----------------- ##
## Semantic Values. ##
## ----------------- ##
# b4_symbol_translate(STRING)
# ---------------------------
# Used by "bison" in the array of symbol names to mark those that
# require translation.
m4_define([b4_symbol_translate],
[[i18n($1)]])
# b4_trans(STRING)
# ----------------
# Translate a string if i18n is enabled. Avoid collision with b4_translate.
m4_define([b4_trans],
[b4_has_translations_if([i18n($1)], [$1])])
# b4_symbol_value(VAL, [SYMBOL-NUM], [TYPE-TAG])
# ----------------------------------------------
# See README.
m4_define([b4_symbol_value],
[m4_ifval([$3],
[(($3)($1))],
[m4_ifval([$2],
[b4_symbol_if([$2], [has_type],
[((b4_symbol([$2], [type]))($1))],
[$1])],
[$1])])])
# b4_lhs_value([SYMBOL-NUM], [TYPE])
# ----------------------------------
# See README.
m4_define([b4_lhs_value], [yyval])
# b4_rhs_data(RULE-LENGTH, POS)
# -----------------------------
# See README.
m4_define([b4_rhs_data],
[yystack.valueAt (b4_subtract($@))])
# b4_rhs_value(RULE-LENGTH, POS, SYMBOL-NUM, [TYPE])
# --------------------------------------------------
# See README.
#
# In this simple implementation, %token and %type have class names
# between the angle brackets.
m4_define([b4_rhs_value],
[b4_symbol_value([b4_rhs_data([$1], [$2])], [$3], [$4])])
# b4_lhs_location()
# -----------------
# Expansion of @$.
m4_define([b4_lhs_location],
[(yyloc)])
# b4_rhs_location(RULE-LENGTH, POS)
# ---------------------------------
# Expansion of @POS, where the current rule has RULE-LENGTH symbols
# on RHS.
m4_define([b4_rhs_location],
[yystack.locationAt (b4_subtract($@))])
# b4_lex_param
# b4_parse_param
# --------------
# If defined, b4_lex_param arrives double quoted, but below we prefer
# it to be single quoted. Same for b4_parse_param.
# TODO: should be in bison.m4
m4_define_default([b4_lex_param], [[]])
m4_define([b4_lex_param], b4_lex_param)
m4_define([b4_parse_param], b4_parse_param)
# b4_lex_param_decl
# -----------------
# Extra formal arguments of the constructor.
m4_define([b4_lex_param_decl],
[m4_ifset([b4_lex_param],
[b4_remove_comma([$1],
b4_param_decls(b4_lex_param))],
[$1])])
m4_define([b4_param_decls],
[m4_map([b4_param_decl], [$@])])
m4_define([b4_param_decl], [, $1])
m4_define([b4_remove_comma], [m4_ifval(m4_quote($1), [$1, ], [])m4_shift2($@)])
# b4_parse_param_decl
# -------------------
# Extra formal arguments of the constructor.
m4_define([b4_parse_param_decl],
[m4_ifset([b4_parse_param],
[b4_remove_comma([$1],
b4_param_decls(b4_parse_param))],
[$1])])
# b4_lex_param_call
# -----------------
# Delegating the lexer parameters to the lexer constructor.
m4_define([b4_lex_param_call],
[m4_ifset([b4_lex_param],
[b4_remove_comma([$1],
b4_param_calls(b4_lex_param))],
[$1])])
m4_define([b4_param_calls],
[m4_map([b4_param_call], [$@])])
m4_define([b4_param_call], [, $2])
# b4_parse_param_cons
# -------------------
# Extra initialisations of the constructor.
m4_define([b4_parse_param_cons],
[m4_ifset([b4_parse_param],
[b4_constructor_calls(b4_parse_param)])])
m4_define([b4_constructor_calls],
[m4_map([b4_constructor_call], [$@])])
m4_define([b4_constructor_call],
[this.$2 = $2;
])
# b4_parse_param_vars
# -------------------
# Extra instance variables.
m4_define([b4_parse_param_vars],
[m4_ifset([b4_parse_param],
[
/* User arguments. */
b4_var_decls(b4_parse_param)])])
m4_define([b4_var_decls],
[m4_map_sep([b4_var_decl], [
], [$@])])
m4_define([b4_var_decl],
[ protected final $1;])
# b4_maybe_throws(THROWS)
# -----------------------
# Expand to either an empty string or "throws THROWS".
m4_define([b4_maybe_throws],
[m4_ifval($1, [ throws $1])])

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# C++ skeleton for Bison
# Copyright (C) 2002-2015, 2018-2021 Free Software Foundation, Inc.
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <https://www.gnu.org/licenses/>.
m4_pushdef([b4_copyright_years],
[2002-2015, 2018-2021])
# b4_location_file
# ----------------
# Name of the file containing the position/location class,
# if we want this file.
b4_percent_define_check_file([b4_location_file],
[[api.location.file]],
b4_header_if([[location.hh]]))
# b4_location_include
# -------------------
# If location.hh is to be generated, the name under which should it be
# included.
#
# b4_location_path
# ----------------
# The path to use for the CPP guard.
m4_ifdef([b4_location_file],
[m4_define([b4_location_include],
[b4_percent_define_get([[api.location.include]],
["b4_location_file"])])
m4_define([b4_location_path],
b4_percent_define_get([[api.location.include]],
["b4_mapped_dir_prefix[]b4_location_file"]))
m4_define([b4_location_path],
m4_substr(m4_defn([b4_location_path]), 1, m4_eval(m4_len(m4_defn([b4_location_path])) - 2)))
])
# b4_position_file
# ----------------
# Name of the file containing the position class, if we want this file.
b4_header_if(
[b4_required_version_if(
[30200], [],
[m4_ifdef([b4_location_file],
[m4_define([b4_position_file], [position.hh])])])])
# b4_location_define
# ------------------
# Define the position and location classes.
m4_define([b4_location_define],
[[ /// A point in a source file.
class position
{
public:
/// Type for file name.
typedef ]b4_percent_define_get([[api.filename.type]])[ filename_type;
/// Type for line and column numbers.
typedef int counter_type;
]m4_ifdef([b4_location_constructors], [[
/// Construct a position.
explicit position (filename_type* f = YY_NULLPTR,
counter_type l = ]b4_location_initial_line[,
counter_type c = ]b4_location_initial_column[)
: filename (f)
, line (l)
, column (c)
{}
]])[
/// Initialization.
void initialize (filename_type* fn = YY_NULLPTR,
counter_type l = ]b4_location_initial_line[,
counter_type c = ]b4_location_initial_column[)
{
filename = fn;
line = l;
column = c;
}
/** \name Line and Column related manipulators
** \{ */
/// (line related) Advance to the COUNT next lines.
void lines (counter_type count = 1)
{
if (count)
{
column = ]b4_location_initial_column[;
line = add_ (line, count, ]b4_location_initial_line[);
}
}
/// (column related) Advance to the COUNT next columns.
void columns (counter_type count = 1)
{
column = add_ (column, count, ]b4_location_initial_column[);
}
/** \} */
/// File name to which this position refers.
filename_type* filename;
/// Current line number.
counter_type line;
/// Current column number.
counter_type column;
private:
/// Compute max (min, lhs+rhs).
static counter_type add_ (counter_type lhs, counter_type rhs, counter_type min)
{
return lhs + rhs < min ? min : lhs + rhs;
}
};
/// Add \a width columns, in place.
inline position&
operator+= (position& res, position::counter_type width)
{
res.columns (width);
return res;
}
/// Add \a width columns.
inline position
operator+ (position res, position::counter_type width)
{
return res += width;
}
/// Subtract \a width columns, in place.
inline position&
operator-= (position& res, position::counter_type width)
{
return res += -width;
}
/// Subtract \a width columns.
inline position
operator- (position res, position::counter_type width)
{
return res -= width;
}
]b4_percent_define_flag_if([[define_location_comparison]], [[
/// Compare two position objects.
inline bool
operator== (const position& pos1, const position& pos2)
{
return (pos1.line == pos2.line
&& pos1.column == pos2.column
&& (pos1.filename == pos2.filename
|| (pos1.filename && pos2.filename
&& *pos1.filename == *pos2.filename)));
}
/// Compare two position objects.
inline bool
operator!= (const position& pos1, const position& pos2)
{
return !(pos1 == pos2);
}
]])[
/** \brief Intercept output stream redirection.
** \param ostr the destination output stream
** \param pos a reference to the position to redirect
*/
template <typename YYChar>
std::basic_ostream<YYChar>&
operator<< (std::basic_ostream<YYChar>& ostr, const position& pos)
{
if (pos.filename)
ostr << *pos.filename << ':';
return ostr << pos.line << '.' << pos.column;
}
/// Two points in a source file.
class location
{
public:
/// Type for file name.
typedef position::filename_type filename_type;
/// Type for line and column numbers.
typedef position::counter_type counter_type;
]m4_ifdef([b4_location_constructors], [
/// Construct a location from \a b to \a e.
location (const position& b, const position& e)
: begin (b)
, end (e)
{}
/// Construct a 0-width location in \a p.
explicit location (const position& p = position ())
: begin (p)
, end (p)
{}
/// Construct a 0-width location in \a f, \a l, \a c.
explicit location (filename_type* f,
counter_type l = ]b4_location_initial_line[,
counter_type c = ]b4_location_initial_column[)
: begin (f, l, c)
, end (f, l, c)
{}
])[
/// Initialization.
void initialize (filename_type* f = YY_NULLPTR,
counter_type l = ]b4_location_initial_line[,
counter_type c = ]b4_location_initial_column[)
{
begin.initialize (f, l, c);
end = begin;
}
/** \name Line and Column related manipulators
** \{ */
public:
/// Reset initial location to final location.
void step ()
{
begin = end;
}
/// Extend the current location to the COUNT next columns.
void columns (counter_type count = 1)
{
end += count;
}
/// Extend the current location to the COUNT next lines.
void lines (counter_type count = 1)
{
end.lines (count);
}
/** \} */
public:
/// Beginning of the located region.
position begin;
/// End of the located region.
position end;
};
/// Join two locations, in place.
inline location&
operator+= (location& res, const location& end)
{
res.end = end.end;
return res;
}
/// Join two locations.
inline location
operator+ (location res, const location& end)
{
return res += end;
}
/// Add \a width columns to the end position, in place.
inline location&
operator+= (location& res, location::counter_type width)
{
res.columns (width);
return res;
}
/// Add \a width columns to the end position.
inline location
operator+ (location res, location::counter_type width)
{
return res += width;
}
/// Subtract \a width columns to the end position, in place.
inline location&
operator-= (location& res, location::counter_type width)
{
return res += -width;
}
/// Subtract \a width columns to the end position.
inline location
operator- (location res, location::counter_type width)
{
return res -= width;
}
]b4_percent_define_flag_if([[define_location_comparison]], [[
/// Compare two location objects.
inline bool
operator== (const location& loc1, const location& loc2)
{
return loc1.begin == loc2.begin && loc1.end == loc2.end;
}
/// Compare two location objects.
inline bool
operator!= (const location& loc1, const location& loc2)
{
return !(loc1 == loc2);
}
]])[
/** \brief Intercept output stream redirection.
** \param ostr the destination output stream
** \param loc a reference to the location to redirect
**
** Avoid duplicate information.
*/
template <typename YYChar>
std::basic_ostream<YYChar>&
operator<< (std::basic_ostream<YYChar>& ostr, const location& loc)
{
location::counter_type end_col
= 0 < loc.end.column ? loc.end.column - 1 : 0;
ostr << loc.begin;
if (loc.end.filename
&& (!loc.begin.filename
|| *loc.begin.filename != *loc.end.filename))
ostr << '-' << loc.end.filename << ':' << loc.end.line << '.' << end_col;
else if (loc.begin.line < loc.end.line)
ostr << '-' << loc.end.line << '.' << end_col;
else if (loc.begin.column < end_col)
ostr << '-' << end_col;
return ostr;
}
]])
m4_ifdef([b4_position_file], [[
]b4_output_begin([b4_dir_prefix], [b4_position_file])[
]b4_generated_by[
// Starting with Bison 3.2, this file is useless: the structure it
// used to define is now defined in "]b4_location_file[".
//
// To get rid of this file:
// 1. add '%require "3.2"' (or newer) to your grammar file
// 2. remove references to this file from your build system
// 3. if you used to include it, include "]b4_location_file[" instead.
#include ]b4_location_include[
]b4_output_end[
]])
m4_ifdef([b4_location_file], [[
]b4_output_begin([b4_dir_prefix], [b4_location_file])[
]b4_copyright([Locations for Bison parsers in C++])[
/**
** \file ]b4_location_path[
** Define the ]b4_namespace_ref[::location class.
*/
]b4_cpp_guard_open([b4_location_path])[
# include <iostream>
# include <string>
]b4_null_define[
]b4_namespace_open[
]b4_location_define[
]b4_namespace_close[
]b4_cpp_guard_close([b4_location_path])[
]b4_output_end[
]])
m4_popdef([b4_copyright_years])

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# C++ skeleton for Bison
# Copyright (C) 2002-2015, 2018-2021 Free Software Foundation, Inc.
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <https://www.gnu.org/licenses/>.
# b4_stack_file
# -------------
# Name of the file containing the stack class, if we want this file.
b4_header_if([b4_required_version_if([30200], [],
[m4_define([b4_stack_file], [stack.hh])])])
# b4_stack_define
# ---------------
m4_define([b4_stack_define],
[[ /// A stack with random access from its top.
template <typename T, typename S = std::vector<T> >
class stack
{
public:
// Hide our reversed order.
typedef typename S::iterator iterator;
typedef typename S::const_iterator const_iterator;
typedef typename S::size_type size_type;
typedef typename std::ptrdiff_t index_type;
stack (size_type n = 200) YY_NOEXCEPT
: seq_ (n)
{}
#if 201103L <= YY_CPLUSPLUS
/// Non copyable.
stack (const stack&) = delete;
/// Non copyable.
stack& operator= (const stack&) = delete;
#endif
/// Random access.
///
/// Index 0 returns the topmost element.
const T&
operator[] (index_type i) const
{
return seq_[size_type (size () - 1 - i)];
}
/// Random access.
///
/// Index 0 returns the topmost element.
T&
operator[] (index_type i)
{
return seq_[size_type (size () - 1 - i)];
}
/// Steal the contents of \a t.
///
/// Close to move-semantics.
void
push (YY_MOVE_REF (T) t)
{
seq_.push_back (T ());
operator[] (0).move (t);
}
/// Pop elements from the stack.
void
pop (std::ptrdiff_t n = 1) YY_NOEXCEPT
{
for (; 0 < n; --n)
seq_.pop_back ();
}
/// Pop all elements from the stack.
void
clear () YY_NOEXCEPT
{
seq_.clear ();
}
/// Number of elements on the stack.
index_type
size () const YY_NOEXCEPT
{
return index_type (seq_.size ());
}
/// Iterator on top of the stack (going downwards).
const_iterator
begin () const YY_NOEXCEPT
{
return seq_.begin ();
}
/// Bottom of the stack.
const_iterator
end () const YY_NOEXCEPT
{
return seq_.end ();
}
/// Present a slice of the top of a stack.
class slice
{
public:
slice (const stack& stack, index_type range) YY_NOEXCEPT
: stack_ (stack)
, range_ (range)
{}
const T&
operator[] (index_type i) const
{
return stack_[range_ - i];
}
private:
const stack& stack_;
index_type range_;
};
private:
#if YY_CPLUSPLUS < 201103L
/// Non copyable.
stack (const stack&);
/// Non copyable.
stack& operator= (const stack&);
#endif
/// The wrapped container.
S seq_;
};
]])
m4_ifdef([b4_stack_file],
[b4_output_begin([b4_dir_prefix], [b4_stack_file])[
]b4_generated_by[
// Starting with Bison 3.2, this file is useless: the structure it
// used to define is now defined with the parser itself.
//
// To get rid of this file:
// 1. add '%require "3.2"' (or newer) to your grammar file
// 2. remove references to this file from your build system.
]b4_output_end[
]])

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dnl GNU M4 treats -dV in a position-independent manner.
m4_debugmode(V)m4_traceon()dnl

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Engine/bin/bison-flex/data/skeletons/variant.hh Normal file
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# C++ skeleton for Bison
# Copyright (C) 2002-2015, 2018-2021 Free Software Foundation, Inc.
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <https://www.gnu.org/licenses/>.
## --------- ##
## variant. ##
## --------- ##
# b4_assert
# ---------
# The name of YY_ASSERT.
m4_define([b4_assert],
[b4_api_PREFIX[]_ASSERT])
# b4_symbol_variant(YYTYPE, YYVAL, ACTION, [ARGS])
# ------------------------------------------------
# Run some ACTION ("build", or "destroy") on YYVAL of symbol type
# YYTYPE.
m4_define([b4_symbol_variant],
[m4_pushdef([b4_dollar_dollar],
[$2.$3< $][3 > (m4_shift3($@))])dnl
switch ($1)
{
b4_type_foreach([_b4_type_action])[]dnl
default:
break;
}
m4_popdef([b4_dollar_dollar])dnl
])
# _b4_char_sizeof_counter
# -----------------------
# A counter used by _b4_char_sizeof_dummy to create fresh symbols.
m4_define([_b4_char_sizeof_counter],
[0])
# _b4_char_sizeof_dummy
# ---------------------
# At each call return a new C++ identifier.
m4_define([_b4_char_sizeof_dummy],
[m4_define([_b4_char_sizeof_counter], m4_incr(_b4_char_sizeof_counter))dnl
dummy[]_b4_char_sizeof_counter])
# b4_char_sizeof(SYMBOL-NUMS)
# ---------------------------
# To be mapped on the list of type names to produce:
#
# char dummy1[sizeof (type_name_1)];
# char dummy2[sizeof (type_name_2)];
#
# for defined type names.
m4_define([b4_char_sizeof],
[b4_symbol_if([$1], [has_type],
[
m4_map([ b4_symbol_tag_comment], [$@])dnl
char _b4_char_sizeof_dummy@{sizeof (b4_symbol([$1], [type]))@};
])])
# b4_variant_includes
# -------------------
# The needed includes for variants support.
m4_define([b4_variant_includes],
[b4_parse_assert_if([[#include <typeinfo>
#ifndef ]b4_assert[
# include <cassert>
# define ]b4_assert[ assert
#endif
]])])
## -------------------------- ##
## Adjustments for variants. ##
## -------------------------- ##
# b4_value_type_declare
# ---------------------
# Define value_type.
m4_define([b4_value_type_declare],
[[ /// A buffer to store and retrieve objects.
///
/// Sort of a variant, but does not keep track of the nature
/// of the stored data, since that knowledge is available
/// via the current parser state.
class value_type
{
public:
/// Type of *this.
typedef value_type self_type;
/// Empty construction.
value_type () YY_NOEXCEPT
: yyraw_ ()]b4_parse_assert_if([
, yytypeid_ (YY_NULLPTR)])[
{}
/// Construct and fill.
template <typename T>
value_type (YY_RVREF (T) t)]b4_parse_assert_if([
: yytypeid_ (&typeid (T))])[
{]b4_parse_assert_if([[
]b4_assert[ (sizeof (T) <= size);]])[
new (yyas_<T> ()) T (YY_MOVE (t));
}
#if 201103L <= YY_CPLUSPLUS
/// Non copyable.
value_type (const self_type&) = delete;
/// Non copyable.
self_type& operator= (const self_type&) = delete;
#endif
/// Destruction, allowed only if empty.
~value_type () YY_NOEXCEPT
{]b4_parse_assert_if([
]b4_assert[ (!yytypeid_);
])[}
# if 201103L <= YY_CPLUSPLUS
/// Instantiate a \a T in here from \a t.
template <typename T, typename... U>
T&
emplace (U&&... u)
{]b4_parse_assert_if([[
]b4_assert[ (!yytypeid_);
]b4_assert[ (sizeof (T) <= size);
yytypeid_ = & typeid (T);]])[
return *new (yyas_<T> ()) T (std::forward <U>(u)...);
}
# else
/// Instantiate an empty \a T in here.
template <typename T>
T&
emplace ()
{]b4_parse_assert_if([[
]b4_assert[ (!yytypeid_);
]b4_assert[ (sizeof (T) <= size);
yytypeid_ = & typeid (T);]])[
return *new (yyas_<T> ()) T ();
}
/// Instantiate a \a T in here from \a t.
template <typename T>
T&
emplace (const T& t)
{]b4_parse_assert_if([[
]b4_assert[ (!yytypeid_);
]b4_assert[ (sizeof (T) <= size);
yytypeid_ = & typeid (T);]])[
return *new (yyas_<T> ()) T (t);
}
# endif
/// Instantiate an empty \a T in here.
/// Obsolete, use emplace.
template <typename T>
T&
build ()
{
return emplace<T> ();
}
/// Instantiate a \a T in here from \a t.
/// Obsolete, use emplace.
template <typename T>
T&
build (const T& t)
{
return emplace<T> (t);
}
/// Accessor to a built \a T.
template <typename T>
T&
as () YY_NOEXCEPT
{]b4_parse_assert_if([[
]b4_assert[ (yytypeid_);
]b4_assert[ (*yytypeid_ == typeid (T));
]b4_assert[ (sizeof (T) <= size);]])[
return *yyas_<T> ();
}
/// Const accessor to a built \a T (for %printer).
template <typename T>
const T&
as () const YY_NOEXCEPT
{]b4_parse_assert_if([[
]b4_assert[ (yytypeid_);
]b4_assert[ (*yytypeid_ == typeid (T));
]b4_assert[ (sizeof (T) <= size);]])[
return *yyas_<T> ();
}
/// Swap the content with \a that, of same type.
///
/// Both variants must be built beforehand, because swapping the actual
/// data requires reading it (with as()), and this is not possible on
/// unconstructed variants: it would require some dynamic testing, which
/// should not be the variant's responsibility.
/// Swapping between built and (possibly) non-built is done with
/// self_type::move ().
template <typename T>
void
swap (self_type& that) YY_NOEXCEPT
{]b4_parse_assert_if([[
]b4_assert[ (yytypeid_);
]b4_assert[ (*yytypeid_ == *that.yytypeid_);]])[
std::swap (as<T> (), that.as<T> ());
}
/// Move the content of \a that to this.
///
/// Destroys \a that.
template <typename T>
void
move (self_type& that)
{
# if 201103L <= YY_CPLUSPLUS
emplace<T> (std::move (that.as<T> ()));
# else
emplace<T> ();
swap<T> (that);
# endif
that.destroy<T> ();
}
# if 201103L <= YY_CPLUSPLUS
/// Move the content of \a that to this.
template <typename T>
void
move (self_type&& that)
{
emplace<T> (std::move (that.as<T> ()));
that.destroy<T> ();
}
#endif
/// Copy the content of \a that to this.
template <typename T>
void
copy (const self_type& that)
{
emplace<T> (that.as<T> ());
}
/// Destroy the stored \a T.
template <typename T>
void
destroy ()
{
as<T> ().~T ();]b4_parse_assert_if([
yytypeid_ = YY_NULLPTR;])[
}
private:
#if YY_CPLUSPLUS < 201103L
/// Non copyable.
value_type (const self_type&);
/// Non copyable.
self_type& operator= (const self_type&);
#endif
/// Accessor to raw memory as \a T.
template <typename T>
T*
yyas_ () YY_NOEXCEPT
{
void *yyp = yyraw_;
return static_cast<T*> (yyp);
}
/// Const accessor to raw memory as \a T.
template <typename T>
const T*
yyas_ () const YY_NOEXCEPT
{
const void *yyp = yyraw_;
return static_cast<const T*> (yyp);
}
/// An auxiliary type to compute the largest semantic type.
union union_type
{]b4_type_foreach([b4_char_sizeof])[ };
/// The size of the largest semantic type.
enum { size = sizeof (union_type) };
/// A buffer to store semantic values.
union
{
/// Strongest alignment constraints.
long double yyalign_me_;
/// A buffer large enough to store any of the semantic values.
char yyraw_[size];
};]b4_parse_assert_if([
/// Whether the content is built: if defined, the name of the stored type.
const std::type_info *yytypeid_;])[
};
]])
# How the semantic value is extracted when using variants.
# b4_symbol_value(VAL, SYMBOL-NUM, [TYPE])
# ----------------------------------------
# See README.
m4_define([b4_symbol_value],
[m4_ifval([$3],
[$1.as< $3 > ()],
[m4_ifval([$2],
[b4_symbol_if([$2], [has_type],
[$1.as < b4_symbol([$2], [type]) > ()],
[$1])],
[$1])])])
# b4_symbol_value_template(VAL, SYMBOL-NUM, [TYPE])
# -------------------------------------------------
# Same as b4_symbol_value, but used in a template method.
m4_define([b4_symbol_value_template],
[m4_ifval([$3],
[$1.template as< $3 > ()],
[m4_ifval([$2],
[b4_symbol_if([$2], [has_type],
[$1.template as < b4_symbol([$2], [type]) > ()],
[$1])],
[$1])])])
## ------------- ##
## make_SYMBOL. ##
## ------------- ##
# _b4_includes_tokens(SYMBOL-NUM...)
# ----------------------------------
# Expands to non-empty iff one of the SYMBOL-NUM denotes
# a token.
m4_define([_b4_is_token],
[b4_symbol_if([$1], [is_token], [1])])
m4_define([_b4_includes_tokens],
[m4_map([_b4_is_token], [$@])])
# _b4_token_maker_define(SYMBOL-NUM)
# ----------------------------------
# Declare make_SYMBOL for SYMBOL-NUM. Use at class-level.
m4_define([_b4_token_maker_define],
[b4_token_visible_if([$1],
[#if 201103L <= YY_CPLUSPLUS
static
symbol_type
make_[]_b4_symbol([$1], [id]) (b4_join(
b4_symbol_if([$1], [has_type],
[b4_symbol([$1], [type]) v]),
b4_locations_if([location_type l])))
{
return symbol_type (b4_join([token::b4_symbol([$1], [id])],
b4_symbol_if([$1], [has_type], [std::move (v)]),
b4_locations_if([std::move (l)])));
}
#else
static
symbol_type
make_[]_b4_symbol([$1], [id]) (b4_join(
b4_symbol_if([$1], [has_type],
[const b4_symbol([$1], [type])& v]),
b4_locations_if([const location_type& l])))
{
return symbol_type (b4_join([token::b4_symbol([$1], [id])],
b4_symbol_if([$1], [has_type], [v]),
b4_locations_if([l])));
}
#endif
])])
# b4_token_kind(SYMBOL-NUM)
# -------------------------
# Some tokens don't have an ID.
m4_define([b4_token_kind],
[b4_symbol_if([$1], [has_id],
[token::b4_symbol([$1], [id])],
[b4_symbol([$1], [code])])])
# _b4_tok_in(SYMBOL-NUM, ...)
# ---------------------------
# See b4_tok_in below. The SYMBOL-NUMs... are tokens only.
#
# We iterate over the tokens to group them by "range" of token numbers (not
# symbols numbers!).
#
# b4_fst is the start of that range.
# b4_prev is the previous value.
# b4_val is the current value.
# If b4_val is the successor of b4_prev in token numbers, update the latter,
# otherwise emit the code for range b4_fst .. b4_prev.
# $1 is also used as a terminator in the foreach, but it will not be printed.
#
m4_define([_b4_tok_in],
[m4_pushdef([b4_prev], [$1])dnl
m4_pushdef([b4_fst], [$1])dnl
m4_pushdef([b4_sep], [])dnl
m4_foreach([b4_val], m4_dquote(m4_shift($@, $1)),
[m4_if(b4_symbol(b4_val, [code]), m4_eval(b4_symbol(b4_prev, [code]) + 1), [],
[b4_sep[]m4_if(b4_fst, b4_prev,
[tok == b4_token_kind(b4_fst)],
[(b4_token_kind(b4_fst) <= tok && tok <= b4_token_kind(b4_prev))])[]dnl
m4_define([b4_fst], b4_val)dnl
m4_define([b4_sep], [
|| ])])dnl
m4_define([b4_prev], b4_val)])dnl
m4_popdef([b4_sep])dnl
m4_popdef([b4_fst])dnl
m4_popdef([b4_prev])dnl
])
# _b4_filter_tokens(SYMBOL-NUM, ...)
# ----------------------------------
# Expand as the list of tokens amongst SYMBOL-NUM.
m4_define([_b4_filter_tokens],
[m4_pushdef([b4_sep])dnl
m4_foreach([b4_val], [$@],
[b4_symbol_if(b4_val, [is_token], [b4_sep[]b4_val[]m4_define([b4_sep], [,])])])dnl
m4_popdef([b4_sep])dnl
])
# b4_tok_in(SYMBOL-NUM, ...)
# ---------------------------
# A C++ conditional that checks that `tok` is a member of this list of symbol
# numbers.
m4_define([b4_tok_in],
[_$0(_b4_filter_tokens($@))])
# _b4_symbol_constructor_define(SYMBOL-NUM...)
# --------------------------------------------
# Define a symbol_type constructor common to all the SYMBOL-NUM (they
# have the same type). Use at class-level.
m4_define([_b4_symbol_constructor_define],
[m4_ifval(_b4_includes_tokens($@),
[[#if 201103L <= YY_CPLUSPLUS
symbol_type (]b4_join(
[int tok],
b4_symbol_if([$1], [has_type],
[b4_symbol([$1], [type]) v]),
b4_locations_if([location_type l]))[)
: super_type (]b4_join([token_kind_type (tok)],
b4_symbol_if([$1], [has_type], [std::move (v)]),
b4_locations_if([std::move (l)]))[)
#else
symbol_type (]b4_join(
[int tok],
b4_symbol_if([$1], [has_type],
[const b4_symbol([$1], [type])& v]),
b4_locations_if([const location_type& l]))[)
: super_type (]b4_join([token_kind_type (tok)],
b4_symbol_if([$1], [has_type], [v]),
b4_locations_if([l]))[)
#endif
{]b4_parse_assert_if([[
#if !defined _MSC_VER || defined __clang__
]b4_assert[ (]b4_tok_in($@)[);
#endif
]])[}
]])])
# b4_basic_symbol_constructor_define(SYMBOL-NUM)
# ----------------------------------------------
# Generate a constructor for basic_symbol from given type.
m4_define([b4_basic_symbol_constructor_define],
[[#if 201103L <= YY_CPLUSPLUS
basic_symbol (]b4_join(
[typename Base::kind_type t],
b4_symbol_if([$1], [has_type], [b4_symbol([$1], [type])&& v]),
b4_locations_if([location_type&& l]))[)
: Base (t)]b4_symbol_if([$1], [has_type], [
, value (std::move (v))])[]b4_locations_if([
, location (std::move (l))])[
{}
#else
basic_symbol (]b4_join(
[typename Base::kind_type t],
b4_symbol_if([$1], [has_type], [const b4_symbol([$1], [type])& v]),
b4_locations_if([const location_type& l]))[)
: Base (t)]b4_symbol_if([$1], [has_type], [
, value (v)])[]b4_locations_if([
, location (l)])[
{}
#endif
]])
# b4_token_constructor_define
# ---------------------------
# Define the overloaded versions of make_FOO for all the token kinds.
m4_define([b4_token_constructor_define],
[ // Implementation of make_symbol for each token kind.
b4_symbol_foreach([_b4_token_maker_define])])

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Engine/bin/bison-flex/data/skeletons/yacc.c Normal file
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