X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/c932d6135ca3e508f7136810b9b0bf79725290b9..2bd435c36c0dfdefb07cef05dec851ec75bab20b:/data/glr.cc diff --git a/data/glr.cc b/data/glr.cc index f6b24474..49b4fa10 100644 --- a/data/glr.cc +++ b/data/glr.cc @@ -54,7 +54,7 @@ b4_defines_if([], [b4_fatal([b4_skeleton[: using %%defines is mandatory]])]) m4_include(b4_pkgdatadir/[c++.m4]) -b4_percent_define_ifdef([[location_type]], [], +b4_percent_define_ifdef([[api.location.type]], [], [m4_include(b4_pkgdatadir/[location.cc])]) m4_define([b4_parser_class_name], @@ -78,30 +78,39 @@ m4_define([b4_yy_symbol_print_generate], [static void], [[FILE *], []], [[int yytype], [yytype]], - [[const b4_namespace_ref::b4_parser_class_name::semantic_type *yyvaluep], - [yyvaluep]], - [[const b4_namespace_ref::b4_parser_class_name::location_type *yylocationp], - [yylocationp]], + [[const ]b4_namespace_ref::b4_parser_class_name[::semantic_type *yyvaluep], + [yyvaluep]], + [[const ]b4_namespace_ref::b4_parser_class_name[::location_type *yylocationp], + [yylocationp]], b4_parse_param)[ { ]b4_parse_param_use[]dnl [ yyparser.yy_symbol_print_ (yytype, yyvaluep]b4_locations_if([, yylocationp])[); } -]]) +]])[ +# Hijack the initial action to initialize the locations. +]b4_locations_if([b4_percent_define_ifdef([[api.location.type]], [], +[m4_define([b4_initial_action], +[yylloc.initialize ();]m4_ifdef([b4_initial_action], [ +m4_defn([b4_initial_action])]))])])[ -# Declare yyerror. -m4_append([b4_post_prologue], -[b4_syncline([@oline@], [@ofile@]) - -b4_c_ansi_function_decl([yyerror], +# Hijack the post prologue to insert early definition of YYLLOC_DEFAULT +# and declaration of yyerror. +]m4_append([b4_post_prologue], +[b4_syncline([@oline@], [@ofile@])[ +]b4_yylloc_default_define[ +#define YYRHSLOC(Rhs, K) ((Rhs)[K].yystate.yyloc) +]b4_c_ansi_function_decl([yyerror], [static void], - [[b4_namespace_ref::b4_parser_class_name::location_type *yylocationp], [yylocationp]], + [[const ]b4_namespace_ref::b4_parser_class_name[::location_type *yylocationp], + [yylocationp]], b4_parse_param, [[const char* msg], [msg]])]) -# Define yyerror. +# Hijack the epilogue to define implementations (yyerror, parser member +# functions etc.). m4_append([b4_epilogue], [b4_syncline([@oline@], [@ofile@])[ /*------------------. @@ -110,7 +119,8 @@ m4_append([b4_epilogue], ]b4_c_ansi_function_def([yyerror], [static void], - [[b4_namespace_ref::b4_parser_class_name::location_type *yylocationp], [yylocationp]], + [[const ]b4_namespace_ref::b4_parser_class_name[::location_type *yylocationp], + [yylocationp]], b4_parse_param, [[const char* msg], [msg]])[ { @@ -125,8 +135,8 @@ m4_pushdef([b4_parse_param], m4_defn([b4_parse_param_orig]))dnl [ /// Build a parser object. ]b4_parser_class_name::b4_parser_class_name[ (]b4_parse_param_decl[)]m4_ifset([b4_parse_param], [ :])[ -#if YYDEBUG - ]m4_ifset([b4_parse_param], [ ], [ :])[yydebug_ (false), +#if ]b4_api_PREFIX[DEBUG + ]m4_ifset([b4_parse_param], [ ], [ :])[ yycdebug_ (&std::cerr)]m4_ifset([b4_parse_param], [,])[ #endif]b4_parse_param_cons[ { @@ -142,34 +152,38 @@ m4_pushdef([b4_parse_param], m4_defn([b4_parse_param_orig]))dnl return ::yyparse (*this]b4_user_args[); } -#if YYDEBUG +#if ]b4_api_PREFIX[DEBUG /*--------------------. | Print this symbol. | `--------------------*/ inline void ]b4_parser_class_name[::yy_symbol_value_print_ (int yytype, - const semantic_type* yyvaluep, const location_type* yylocationp) + const semantic_type* yyvaluep, + const location_type* yylocationp) { - /* Pacify ``unused variable'' warnings. */ - YYUSE (yyvaluep); YYUSE (yylocationp); + YYUSE (yyvaluep); + std::ostream& yyoutput = debug_stream (); + std::ostream& yyo = yyoutput; + YYUSE (yyo); switch (yytype) { ]m4_map([b4_symbol_actions], m4_defn([b4_symbol_printers]))dnl [ default: - break; + break; } } void ]b4_parser_class_name[::yy_symbol_print_ (int yytype, - const semantic_type* yyvaluep, const location_type* yylocationp) + const semantic_type* yyvaluep, + const location_type* yylocationp) { *yycdebug_ << (yytype < YYNTOKENS ? "token" : "nterm") - << ' ' << yytname[yytype] << " (" - << *yylocationp << ": "; + << ' ' << yytname[yytype] << " (" + << *yylocationp << ": "; yy_symbol_value_print_ (yytype, yyvaluep, yylocationp); *yycdebug_ << ')'; } @@ -190,76 +204,48 @@ m4_pushdef([b4_parse_param], m4_defn([b4_parse_param_orig]))dnl ]b4_parser_class_name[::debug_level_type ]b4_parser_class_name[::debug_level () const { - return yydebug_; + return yydebug; } void ]b4_parser_class_name[::set_debug_level (debug_level_type l) { - yydebug_ = l; + // Actually, it is yydebug which is really used. + yydebug = l; } #endif ]m4_popdef([b4_parse_param])dnl -b4_namespace_close[ - -]]) +b4_namespace_close]) # Let glr.c believe that the user arguments include the parser itself. m4_ifset([b4_parse_param], [m4_pushdef([b4_parse_param], - m4_dquote([[[b4_namespace_ref::b4_parser_class_name& yyparser], [[yyparser]]],] -m4_defn([b4_parse_param])))], + [[b4_namespace_ref::b4_parser_class_name[& yyparser], [[yyparser]]],] +m4_defn([b4_parse_param]))], [m4_pushdef([b4_parse_param], - [[[[b4_namespace_ref::b4_parser_class_name& yyparser], [[yyparser]]]]]) + [[b4_namespace_ref::b4_parser_class_name[& yyparser], [[yyparser]]]]) ]) m4_include(b4_pkgdatadir/[glr.c]) m4_popdef([b4_parse_param]) -m4_divert_push(0) -@output(b4_spec_defines_file@)@ +b4_output_begin([b4_spec_defines_file]) b4_copyright([Skeleton interface for Bison GLR parsers in C++], - [2002-2006, 2009-2011])[ + [2002-2006, 2009-2012])[ /* C++ GLR parser skeleton written by Akim Demaille. */ -#ifndef PARSER_HEADER_H -# define PARSER_HEADER_H +]b4_cpp_guard_open([b4_spec_defines_file])[ ]b4_percent_code_get([[requires]])[ -#include -#include -]b4_percent_define_ifdef([[location_type]], [], - [[#include "location.hh"]])[ +# include +# include +]b4_percent_define_ifdef([[api.location.type]], [], + [[# include "location.hh"]])[ -/* Using locations. */ -#define YYLSP_NEEDED ]b4_locations_flag[ - -/* Enabling traces. */ -#ifndef YYDEBUG -# define YYDEBUG ]b4_debug_flag[ -#endif - -/* 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 (/*CONSTCOND*/ 0) -#endif +]b4_YYDEBUG_define[ ]b4_namespace_open[ /// A Bison parser. @@ -267,7 +253,7 @@ b4_copyright([Skeleton interface for Bison GLR parsers in C++], { public: /// Symbol semantic values. -#ifndef YYSTYPE +# ifndef ]b4_api_PREFIX[STYPE ]m4_ifdef([b4_stype], [ union semantic_type { @@ -275,12 +261,12 @@ b4_user_stype };], [m4_if(b4_tag_seen_flag, 0, [[ typedef int semantic_type;]], -[[ typedef YYSTYPE semantic_type;]])])[ -#else - typedef YYSTYPE semantic_type; -#endif +[[ typedef ]b4_api_PREFIX[STYPE semantic_type;]])])[ +# else + typedef ]b4_api_PREFIX[STYPE semantic_type; +# endif /// Symbol locations. - typedef ]b4_percent_define_get([[location_type]], + typedef ]b4_percent_define_get([[api.location.type]], [[location]])[ location_type; /// Tokens. struct token @@ -319,38 +305,26 @@ b4_user_stype virtual void error (const location_type& loc, const std::string& msg); private: -#if YYDEBUG +# if ]b4_api_PREFIX[DEBUG public: /// \brief Report a symbol value on the debug stream. /// \param yytype The token type. /// \param yyvaluep Its semantic value. /// \param yylocationp Its location. virtual void yy_symbol_value_print_ (int yytype, - const semantic_type* yyvaluep, - const location_type* yylocationp); + const semantic_type* yyvaluep, + const location_type* yylocationp); /// \brief Report a symbol on the debug stream. /// \param yytype The token type. /// \param yyvaluep Its semantic value. /// \param yylocationp Its location. virtual void yy_symbol_print_ (int yytype, - const semantic_type* yyvaluep, - const location_type* yylocationp); + const semantic_type* yyvaluep, + const location_type* yylocationp); private: /* Debugging. */ - int yydebug_; std::ostream* yycdebug_; -#endif - - - /// \brief Reclaim the memory associated to a symbol. - /// \param yymsg Why this token is reclaimed. - /// \param yytype The symbol type. - /// \param yyvaluep Its semantic value. - /// \param yylocationp Its location. - inline void yydestruct_ (const char* yymsg, - int yytype, - semantic_type* yyvaluep, - location_type* yylocationp); +# endif ]b4_parse_param_vars[ }; @@ -359,16 +333,14 @@ b4_user_stype b4_percent_define_flag_if([[global_tokens_and_yystype]], [b4_token_defines(b4_tokens)]) [ -#ifndef YYSTYPE -# define YYSTYPE ]b4_namespace_ref[::]b4_parser_class_name[::semantic_type +#ifndef ]b4_api_PREFIX[STYPE +# define ]b4_api_PREFIX[STYPE ]b4_namespace_ref[::]b4_parser_class_name[::semantic_type #endif -#ifndef YYLTYPE -# define YYLTYPE ]b4_namespace_ref[::]b4_parser_class_name[::location_type +#ifndef ]b4_api_PREFIX[LTYPE +# define ]b4_api_PREFIX[LTYPE ]b4_namespace_ref[::]b4_parser_class_name[::location_type #endif ]b4_namespace_close[ - -]b4_percent_code_get([[provides]])[]dnl - -[#endif /* ! defined PARSER_HEADER_H */] -m4_divert_pop(0) +]b4_percent_code_get([[provides]])[ +]b4_cpp_guard_close([b4_spec_defines_file])[ +]b4_output_end()