X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/a9b67b5b1e99b3ec3849c45fe42e5ecb382a314d..bcbbf654863dd285b176a0f54a75a28c4bdac1d3:/data/lalr1.cc diff --git a/data/lalr1.cc b/data/lalr1.cc index c63e66de..17a8f22c 100644 --- a/data/lalr1.cc +++ b/data/lalr1.cc @@ -37,12 +37,15 @@ b4_defines_if( [@output(b4_spec_defines_file@)@ b4_copyright([Skeleton interface for Bison LALR(1) parsers in C++], [2002-2012]) -dnl FIXME: This is wrong, we want computed header guards. [ +/** + ** \file ]b4_spec_defines_file[ + ** Define the ]b4_namespace_ref[::parser class. + */ + /* C++ LALR(1) 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]])[ @@ -52,25 +55,7 @@ dnl FIXME: This is wrong, we want computed header guards. ]b4_percent_define_ifdef([[location_type]], [], [[#include "location.hh"]])[ -]b4_null_define[ - -/* Enabling traces. */ -#ifndef YYDEBUG -# define YYDEBUG ]b4_debug_flag[ -#endif - -/* Enabling verbose error messages. */ -#ifdef YYERROR_VERBOSE -# undef YYERROR_VERBOSE -# define YYERROR_VERBOSE 1 -#else -# define YYERROR_VERBOSE ]b4_error_verbose_flag[ -#endif - -/* Enabling the token table. */ -#ifndef YYTOKEN_TABLE -# define YYTOKEN_TABLE ]b4_token_table[ -#endif +]b4_YYDEBUG_define[ ]b4_namespace_open[ @@ -79,7 +64,7 @@ dnl FIXME: This is wrong, we want computed header guards. { public: /// Symbol semantic values. -#ifndef YYSTYPE +#ifndef ]b4_api_PREFIX[STYPE ]m4_ifdef([b4_stype], [ union semantic_type { @@ -87,9 +72,9 @@ b4_user_stype };], [m4_if(b4_tag_seen_flag, 0, [[ typedef int semantic_type;]], -[[ typedef YYSTYPE semantic_type;]])])[ +[[ typedef ]b4_api_PREFIX[STYPE semantic_type;]])])[ #else - typedef YYSTYPE semantic_type; + typedef ]b4_api_PREFIX[STYPE semantic_type; #endif /// Symbol locations. typedef ]b4_percent_define_get([[location_type]], @@ -110,7 +95,7 @@ b4_user_stype /// \returns 0 iff parsing succeeded. virtual int parse (); -#if YYDEBUG +#if ]b4_api_PREFIX[DEBUG /// The current debugging stream. std::ostream& debug_stream () const; /// Set the current debugging stream. @@ -135,7 +120,7 @@ b4_user_stype /// \param tok the lookahead token. virtual std::string yysyntax_error_ (int yystate, int tok); -#if YYDEBUG +#if ]b4_api_PREFIX[DEBUG /// \brief Report a symbol value on the debug stream. /// \param yytype The token type. /// \param yyvaluep Its semantic value. @@ -208,17 +193,15 @@ b4_user_stype /// For a rule, its LHS. static const ]b4_int_type_for([b4_r1])[ yyr1_[]; /// For a rule, its RHS length. - static const ]b4_int_type_for([b4_r2])[ yyr2_[]; - -#if YYDEBUG || YYERROR_VERBOSE || YYTOKEN_TABLE - /// For a symbol, its name in clear. - static const char* const yytname_[]; -#endif]b4_error_verbose_if([ + static const ]b4_int_type_for([b4_r2])[ yyr2_[]; ]b4_error_verbose_if([ /// Convert the symbol name \a n to a form suitable for a diagnostic. static std::string yytnamerr_ (const char *n);])[ -#if YYDEBUG +]b4_token_table_if([], [[#if ]b4_api_PREFIX[DEBUG]])[ + /// For a symbol, its name in clear. + static const char* const yytname_[]; +]b4_token_table_if([[#if ]b4_api_PREFIX[DEBUG]])[ /// A type to store symbol numbers and -1. typedef ]b4_int_type_for([b4_rhs])[ rhs_number_type; /// A `-1'-separated list of the rules' RHS. @@ -274,14 +257,13 @@ b4_user_stype ]b4_percent_define_flag_if([[global_tokens_and_yystype]], [b4_token_defines(b4_tokens) -#ifndef YYSTYPE +#ifndef ]b4_api_PREFIX[STYPE /* Redirection for backward compatibility. */ -# define YYSTYPE b4_namespace_ref::b4_parser_class_name::semantic_type +# define ]b4_api_PREFIX[STYPE b4_namespace_ref::b4_parser_class_name::semantic_type #endif -]) -b4_percent_code_get([[provides]])[]dnl - -[#endif /* ! defined PARSER_HEADER_H */] +])[ +]b4_percent_code_get([[provides]])[ +]b4_cpp_guard_close([b4_spec_defines_file]) ])dnl @output(b4_parser_file_name@)@ b4_copyright([Skeleton implementation for Bison LALR(1) parsers in C++], @@ -293,16 +275,18 @@ m4_if(b4_prefix, [yy], [], #define yylex b4_prefix[]lex])[ /* First part of user declarations. */ -]b4_user_pre_prologue +]b4_user_pre_prologue[ -b4_defines_if([[ +]b4_defines_if([[ #include "@basename(]b4_spec_defines_file[@)"]])[ /* User implementation prologue. */ -]b4_user_post_prologue -b4_percent_code_get[]dnl +]b4_user_post_prologue[ +]b4_percent_code_get[ -[#ifndef YY_ +]b4_null_define[ + +#ifndef YY_ # if defined YYENABLE_NLS && YYENABLE_NLS # if ENABLE_NLS # include /* FIXME: INFRINGES ON USER NAME SPACE */ @@ -314,31 +298,14 @@ b4_percent_code_get[]dnl # endif #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). */ - #define YYRHSLOC(Rhs, K) ((Rhs)[K]) -#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 +]b4_yylloc_default_define[ /* Suppress unused-variable warnings by "using" E. */ #define YYUSE(e) ((void) (e)) /* Enable debugging if requested. */ -#if YYDEBUG +#if ]b4_api_PREFIX[DEBUG /* A pseudo ostream that takes yydebug_ into account. */ # define YYCDEBUG if (yydebug_) (*yycdebug_) @@ -365,14 +332,14 @@ do { \ yystack_print_ (); \ } while (false) -#else /* !YYDEBUG */ +#else /* !]b4_api_PREFIX[DEBUG */ # define YYCDEBUG if (false) std::cerr # define YY_SYMBOL_PRINT(Title, Type, Value, Location) # define YY_REDUCE_PRINT(Rule) # define YY_STACK_PRINT() -#endif /* !YYDEBUG */ +#endif /* !]b4_api_PREFIX[DEBUG */ #define yyerrok (yyerrstatus_ = 0) #define yyclearin (yychar = yyempty_) @@ -425,7 +392,7 @@ do { \ /// Build a parser object. ]b4_parser_class_name::b4_parser_class_name[ (]b4_parse_param_decl[)]m4_ifset([b4_parse_param], [ :])[ -#if YYDEBUG +#if ]b4_api_PREFIX[DEBUG ]m4_ifset([b4_parse_param], [ ], [ :])[yydebug_ (false), yycdebug_ (&std::cerr)]m4_ifset([b4_parse_param], [,])[ #endif]b4_parse_param_cons[ @@ -436,7 +403,7 @@ do { \ { } -#if YYDEBUG +#if ]b4_api_PREFIX[DEBUG /*--------------------------------. | Print this symbol on YYOUTPUT. | `--------------------------------*/ @@ -497,7 +464,7 @@ do { \ yylocation_stack_.pop (n); } -#if YYDEBUG +#if ]b4_api_PREFIX[DEBUG std::ostream& ]b4_parser_class_name[::debug_stream () const { @@ -610,7 +577,7 @@ m4_popdef([b4_at_dollar])])dnl { YYCDEBUG << "Reading a token: "; yychar = ]b4_c_function_call([yylex], [int], - [[YYSTYPE*], [&yylval]][]dnl + [b4_api_PREFIX[STYPE*], [&yylval]][]dnl b4_locations_if([, [[location*], [&yylloc]]])dnl m4_ifdef([b4_lex_param], [, ]b4_lex_param))[; } @@ -1025,7 +992,7 @@ b4_error_verbose_if([int yystate, int yytoken], ]b4_stos[ }; -#if YYDEBUG +#if ]b4_api_PREFIX[DEBUG /* TOKEN_NUMBER_[YYLEX-NUM] -- Internal symbol number corresponding to YYLEX-NUM. */ const ]b4_int_type_for([b4_toknum])[ @@ -1049,7 +1016,7 @@ b4_error_verbose_if([int yystate, int yytoken], ]b4_r2[ }; -#if YYDEBUG || YYERROR_VERBOSE || YYTOKEN_TABLE +]b4_token_table_if([], [[#if ]b4_api_PREFIX[DEBUG]])[ /* YYTNAME[SYMBOL-NUM] -- String name of the symbol SYMBOL-NUM. First, the terminals, then, starting at \a yyntokens_, nonterminals. */ const char* @@ -1057,9 +1024,8 @@ b4_error_verbose_if([int yystate, int yytoken], { ]b4_tname[ }; -#endif -#if YYDEBUG +]b4_token_table_if([[#if ]b4_api_PREFIX[DEBUG]])[ /* YYRHS -- A `-1'-separated list of the rules' RHS. */ const ]b4_parser_class_name[::rhs_number_type ]b4_parser_class_name[::yyrhs_[] = @@ -1109,7 +1075,7 @@ b4_error_verbose_if([int yystate, int yytoken], &]b4_rhs_value(yynrhs, yyi + 1)[, &]b4_rhs_location(yynrhs, yyi + 1)[); } -#endif // YYDEBUG +#endif // ]b4_api_PREFIX[DEBUG /* YYTRANSLATE(YYLEX) -- Bison symbol number corresponding to YYLEX. */ ]b4_parser_class_name[::token_number_type