X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/8e0a5e9e735620ef5196a155eed1f8cf4d3aab5f..9bcffa0c13d1abee13433f14cdb785cbb960425c:/tests/actions.at?ds=sidebyside diff --git a/tests/actions.at b/tests/actions.at index b38475e8..3f47928a 100644 --- a/tests/actions.at +++ b/tests/actions.at @@ -1,20 +1,19 @@ # Executing Actions. -*- Autotest -*- -# Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006 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 2, or (at your option) -# any later version. +# Copyright (C) 2001-2012 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, write to the Free Software -# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA -# 02110-1301, USA. +# along with this program. If not, see . AT_BANNER([[User Actions.]]) @@ -29,14 +28,13 @@ AT_SETUP([Mid-rule actions]) # instead of being attached to the empty rule dedicated to this # action. +AT_BISON_OPTION_PUSHDEFS AT_DATA_GRAMMAR([[input.y]], [[%error-verbose %debug %{ -# include -# include - static void yyerror (const char *msg); - static int yylex (void); +]AT_YYERROR_DECLARE[ +]AT_YYLEX_DECLARE[ %} %% exp: { putchar ('0'); } @@ -52,30 +50,17 @@ exp: { putchar ('0'); } { putchar ('\n'); } ; %% -static int -yylex (void) -{ - static char const input[] = "123456789"; - static size_t toknum; - if (! (toknum < sizeof input)) - abort (); - return input[toknum++]; -} - -static void -yyerror (const char *msg) -{ - fprintf (stderr, "%s\n", msg); -} - +]AT_YYERROR_DEFINE[ +]AT_YYLEX_DEFINE(123456789)[ int main (void) { return yyparse (); } ]]) +AT_BISON_OPTION_POPDEFS -AT_CHECK([bison -d -v -o input.c input.y]) +AT_BISON_CHECK([-d -v -o input.c input.y]) AT_COMPILE([input]) AT_PARSER_CHECK([./input], 0, [[0123456789 @@ -93,14 +78,13 @@ AT_CLEANUP AT_SETUP([Exotic Dollars]) +AT_BISON_OPTION_PUSHDEFS AT_DATA_GRAMMAR([[input.y]], [[%error-verbose %debug %{ -# include -# include - static void yyerror (const char *msg); - static int yylex (void); +]AT_YYERROR_DECLARE[ +]AT_YYLEX_DECLARE[ # define USE(Var) %} @@ -131,21 +115,43 @@ sum_of_the_five_previous_values: ; %% -static int -yylex (void) +]AT_YYERROR_DEFINE[ +]AT_YYLEX_DEFINE([])[ +int +main (void) { - static int called; - if (called++) - abort (); - return EOF; + return yyparse (); } +]]) -static void -yyerror (const char *msg) -{ - fprintf (stderr, "%s\n", msg); -} +AT_BISON_CHECK([-d -v -o input.c input.y], 0) +AT_COMPILE([input]) +AT_PARSER_CHECK([./input], 0, +[[15 +]]) +# Make sure that fields after $n or $-n are parsed correctly. At one +# point while implementing dashes in symbol names, we were dropping +# fields after $-n. +AT_DATA_GRAMMAR([[input.y]], +[[ +%{ +#include +]AT_YYERROR_DECLARE[ +]AT_YYLEX_DECLARE[ + typedef struct { int val; } stype; +# define YYSTYPE stype +%} + +%% +start: one two { $$.val = $1.val + $2.val; } sum ; +one: { $$.val = 1; } ; +two: { $$.val = 2; } ; +sum: { printf ("%d\n", $0.val + $-1.val + $-2.val); } ; + +%% +]AT_YYERROR_DEFINE[ +]AT_YYLEX_DEFINE()[ int main (void) { @@ -153,12 +159,13 @@ main (void) } ]]) -AT_CHECK([bison -d -v -o input.c input.y], 0) -AT_COMPILE([input]) -AT_PARSER_CHECK([./input], 0, -[[15 +AT_BISON_CHECK([[-o input.c input.y]]) +AT_COMPILE([[input]]) +AT_PARSER_CHECK([[./input]], [[0]], +[[6 ]]) +AT_BISON_OPTION_POPDEFS AT_CLEANUP @@ -167,18 +174,19 @@ AT_CLEANUP ## Printers and Destructors. ## ## -------------------------- ## -# _AT_CHECK_PRINTER_AND_DESTRUCTOR($1, $2, $3, $4, BISON-DIRECTIVE, UNION-FLAG) -# ----------------------------------------------------------------------------- +# _AT_CHECK_PRINTER_AND_DESTRUCTOR($1, $2, $3, $4, +# BISON-DIRECTIVE, UNION-FLAG) +# ------------------------------------------------------------- m4_define([_AT_CHECK_PRINTER_AND_DESTRUCTOR], [# Make sure complex $n work. -m4_if([$1$2$3], $[1]$[2]$[3], [], +m4_if([$1$2$3$4], $[1]$[2]$[3]$[4], [], [m4_fatal([$0: Invalid arguments: $@])])dnl # Be sure to pass all the %directives to this macro to have correct # helping macros. So don't put any directly in the Bison file. AT_BISON_OPTION_PUSHDEFS([$5]) AT_DATA_GRAMMAR([[input.y]], -[[%code "requires" { +[[%code requires { #include #include #include @@ -186,21 +194,24 @@ AT_DATA_GRAMMAR([[input.y]], #define YYINITDEPTH 10 #define YYMAXDEPTH 10 -]AT_LALR1_CC_IF( - [#define RANGE(Location) (Location).begin.line, (Location).end.line], - [#define RANGE(Location) (Location).first_line, (Location).last_line]) -[} +#define RANGE(Location) ]AT_LALR1_CC_IF([(Location).begin.line, (Location).end.line], + [(Location).first_line, (Location).last_line])[ -$5] -m4_ifval([$6], [%union +/* Display the symbol type Symbol. */ +#define V(Symbol, Value, Location, Sep) \ + fprintf (stderr, #Symbol " (%d@%d-%d)" Sep, Value, RANGE(Location)) +} + +$5 +]m4_ifval([$6], [%union { int ival; }]) -AT_LALR1_CC_IF([%define "global_tokens_and_yystype"]) -m4_ifval([$6], [[%code "provides" {]], [[%code {]]) -AT_LALR1_CC_IF([typedef yy::location YYLTYPE;]) -[static int yylex (]AT_LEX_FORMALS[); -]AT_LALR1_CC_IF([], [static void yyerror (const char *msg);]) +AT_LALR1_CC_IF([%define global_tokens_and_yystype]) +m4_ifval([$6], [[%code provides {]], [[%code {]]) +AT_LALR1_CC_IF([typedef yy::location YYLTYPE;])[ +]AT_YYLEX_DECLARE[ +]AT_LALR1_CC_IF([], [AT_YYERROR_DECLARE]) [} ]m4_ifval([$6], [%type '(' 'x' 'y' ')' ';' thing line input END])[ @@ -214,28 +225,28 @@ AT_LALR1_CC_IF([typedef yy::location YYLTYPE;]) input line thing 'x' 'y' %destructor - { printf ("Freeing nterm input (%d@%d-%d)\n", $$, RANGE (@$)); } + { fprintf (stderr, "Freeing nterm input (%d@%d-%d)\n", $$, RANGE (@$)); } input %destructor - { printf ("Freeing nterm line (%d@%d-%d)\n", $$, RANGE (@$)); } + { fprintf (stderr, "Freeing nterm line (%d@%d-%d)\n", $$, RANGE (@$)); } line %destructor - { printf ("Freeing nterm thing (%d@%d-%d)\n", $$, RANGE (@$)); } + { fprintf (stderr, "Freeing nterm thing (%d@%d-%d)\n", $$, RANGE (@$)); } thing %destructor - { printf ("Freeing token 'x' (%d@%d-%d)\n", $$, RANGE (@$)); } + { fprintf (stderr, "Freeing token 'x' (%d@%d-%d)\n", $$, RANGE (@$)); } 'x' %destructor - { printf ("Freeing token 'y' (%d@%d-%d)\n", $$, RANGE (@$)); } + { fprintf (stderr, "Freeing token 'y' (%d@%d-%d)\n", $$, RANGE (@$)); } 'y' %token END 0 %destructor - { printf ("Freeing token END (%d@%d-%d)\n", $$, RANGE (@$)); } + { fprintf (stderr, "Freeing token END (%d@%d-%d)\n", $$, RANGE (@$)); } END %% @@ -250,14 +261,15 @@ input: /* Nothing. */ { $$ = 0; - printf ("input (%d@%d-%d): /* Nothing */\n", $$, RANGE (@$)); + V(input, $$, @$, ": /* Nothing */\n"); } | line input /* Right recursive to load the stack so that popping at END can be exercised. */ { $$ = 2; - printf ("input (%d@%d-%d): line (%d@%d-%d) input (%d@%d-%d)\n", - $$, RANGE (@$), $1, RANGE (@1), $2, RANGE (@2)); + V(input, $$, @$, ": "); + V(line, $1, @1, " "); + V(input, $2, @2, "\n"); } ; @@ -265,28 +277,36 @@ line: thing thing thing ';' { $$ = $1; - printf ("line (%d@%d-%d): thing (%d@%d-%d) thing (%d@%d-%d) thing (%d@%d-%d) ';' (%d@%d-%d)\n", - $$, RANGE (@$), $1, RANGE (@1), $2, RANGE (@2), - $3, RANGE (@3), $4, RANGE (@4)); + V(line, $$, @$, ": "); + V(thing, $1, @1, " "); + V(thing, $2, @2, " "); + V(thing, $3, @3, " "); + V(;, $4, @4, "\n"); } | '(' thing thing ')' { $$ = $1; - printf ("line (%d@%d-%d): '(' (%d@%d-%d) thing (%d@%d-%d) thing (%d@%d-%d) ')' (%d@%d-%d)\n", - $$, RANGE (@$), $1, RANGE (@1), $2, RANGE (@2), - $3, RANGE (@3), $4, RANGE (@4)); + V(line, $$, @$, ": "); + V('(', $1, @1, " "); + V(thing, $2, @2, " "); + V(thing, $3, @3, " "); + V(')', $4, @4, "\n"); } | '(' thing ')' { $$ = $1; - printf ("line (%d@%d-%d): '(' (%d@%d-%d) thing (%d@%d-%d) ')' (%d@%d-%d)\n", - $$, RANGE (@$), $1, RANGE (@1), $2, RANGE (@2), $3, RANGE (@3)); + V(line, $$, @$, ": "); + V('(', $1, @1, " "); + V(thing, $2, @2, " "); + V(')', $3, @3, "\n"); } | '(' error ')' { $$ = -1; - printf ("line (%d@%d-%d): '(' (%d@%d-%d) error (@%d-%d) ')' (%d@%d-%d)\n", - $$, RANGE (@$), $1, RANGE (@1), RANGE (@2), $3, RANGE (@3)); + V(line, $$, @$, ": "); + V('(', $1, @1, " "); + fprintf (stderr, "error (@%d-%d) ", RANGE(@2)); + V(')', $3, @3, "\n"); } ; @@ -294,48 +314,35 @@ thing: 'x' { $$ = $1; - printf ("thing (%d@%d-%d): 'x' (%d@%d-%d)\n", - $$, RANGE (@$), $1, RANGE (@1)); + V(thing, $$, @$, ": "); + V('x', $1, @1, "\n"); } ; %% /* Alias to ARGV[1]. */ -const char *source = 0; +const char *source = YY_NULL; -static int -yylex (]AT_LEX_FORMALS[) +]AT_YYERROR_DEFINE[ + +static +]AT_YYLEX_PROTOTYPE[ { static unsigned int counter = 0; int c = ]AT_VAL[]m4_ifval([$6], [.ival])[ = counter++; /* As in BASIC, line numbers go from 10 to 10. */ -]AT_LALR1_CC_IF( -[ AT_LOC.begin.line = AT_LOC.begin.column = 10 * c; - AT_LOC.end.line = AT_LOC.end.column = AT_LOC.begin.line + 9; -], -[ AT_LOC.first_line = AT_LOC.first_column = 10 * c; - AT_LOC.last_line = AT_LOC.last_column = AT_LOC.first_line + 9; -])[ - - if (! (0 <= c && c <= strlen (source))) - abort (); + ]AT_LOC_FIRST_LINE[ = ]AT_LOC_FIRST_COLUMN[ = 10 * c; + ]AT_LOC_LAST_LINE[ = ]AT_LOC_LAST_COLUMN[ = ]AT_LOC_FIRST_LINE[ + 9; + assert (0 <= c && c <= strlen (source)); if (source[c]) - printf ("sending: '%c'", source[c]); + fprintf (stderr, "sending: '%c'", source[c]); else - printf ("sending: END"); - printf (" (%d@%d-%d)\n", c, RANGE (]AT_LOC[)); + fprintf (stderr, "sending: END"); + fprintf (stderr, " (%d@%d-%d)\n", c, RANGE (]AT_LOC[)); return source[c]; } - ]AT_LALR1_CC_IF( -[/* A C++ error reporting function. */ -void -yy::parser::error (const location& l, const std::string& m) -{ - printf ("%d-%d: %s\n", RANGE (l), m.c_str()); -} - -static bool yydebug; +[static bool yydebug; int yyparse () { @@ -343,12 +350,7 @@ yyparse () parser.set_debug_level (yydebug); return parser.parse (); } -], -[static void -yyerror (const char *msg) -{ - printf ("%d-%d: %s\n", RANGE (yylloc), msg); -}])[ +])[ int main (int argc, const char *argv[]) @@ -360,19 +362,15 @@ main (int argc, const char *argv[]) status = yyparse (); switch (status) { - case 0: printf ("Successful parse.\n"); break; - case 1: printf ("Parsing FAILED.\n"); break; - default: printf ("Parsing FAILED (status %d).\n", status); break; + case 0: fprintf (stderr, "Successful parse.\n"); break; + case 1: fprintf (stderr, "Parsing FAILED.\n"); break; + default: fprintf (stderr, "Parsing FAILED (status %d).\n", status); break; } return status; } ]]) -AT_LALR1_CC_IF( - [AT_CHECK([bison -o input.cc input.y]) - AT_COMPILE_CXX([input])], - [AT_CHECK([bison -o input.c input.y]) - AT_COMPILE([input])]) +AT_FULL_COMPILE([input]) # Check the location of "empty" @@ -380,7 +378,7 @@ AT_LALR1_CC_IF( # I.e., epsilon-reductions, as in "(x)" which ends by reducing # an empty "line" nterm. # FIXME: This location is not satisfying. Depend on the lookahead? -AT_PARSER_CHECK([./input '(x)'], 0, +AT_PARSER_CHECK([./input '(x)'], 0, [], [[sending: '(' (0@0-9) sending: 'x' (1@10-19) thing (1@10-19): 'x' (1@10-19) @@ -399,10 +397,10 @@ Successful parse. # --------------------------------- # '(y)' is an error, but can be recovered from. But what's the location # of the error itself ('y'), and of the resulting reduction ('(error)'). -AT_PARSER_CHECK([./input '(y)'], 0, +AT_PARSER_CHECK([./input '(y)'], 0, [], [[sending: '(' (0@0-9) sending: 'y' (1@10-19) -10-19: syntax error, unexpected 'y', expecting 'x' +10.10-19.18: syntax error, unexpected 'y', expecting 'x' Freeing token 'y' (1@10-19) sending: ')' (2@20-29) line (-1@0-29): '(' (0@0-9) error (@10-19) ')' (2@20-29) @@ -429,14 +427,14 @@ Successful parse. # '(', 'x', ')', # '(', 'x', ')', # 'y' -AT_PARSER_CHECK([./input '(xxxxx)(x)(x)y'], 1, +AT_PARSER_CHECK([./input '(xxxxx)(x)(x)y'], 1, [], [[sending: '(' (0@0-9) sending: 'x' (1@10-19) thing (1@10-19): 'x' (1@10-19) sending: 'x' (2@20-29) thing (2@20-29): 'x' (2@20-29) sending: 'x' (3@30-39) -30-39: syntax error, unexpected 'x', expecting ')' +30.30-39.38: syntax error, unexpected 'x', expecting ')' Freeing nterm thing (2@20-29) Freeing nterm thing (1@10-19) Freeing token 'x' (3@30-39) @@ -461,7 +459,7 @@ input (0@129-129): /* Nothing */ input (2@100-129): line (10@100-129) input (0@129-129) input (2@70-129): line (7@70-99) input (2@100-129) input (2@0-129): line (-1@0-69) input (2@70-129) -130-139: syntax error, unexpected 'y', expecting END +130.130-139.138: syntax error, unexpected 'y', expecting END Freeing nterm input (2@0-129) Freeing token 'y' (13@130-139) Parsing FAILED. @@ -477,7 +475,7 @@ Parsing FAILED. # '(', 'x', ')', # '(', 'x', ')', # 'x' -AT_PARSER_CHECK([./input '(x)(x)x'], 1, +AT_PARSER_CHECK([./input '(x)(x)x'], 1, [], [[sending: '(' (0@0-9) sending: 'x' (1@10-19) thing (1@10-19): 'x' (1@10-19) @@ -491,7 +489,7 @@ line (3@30-59): '(' (3@30-39) thing (4@40-49) ')' (5@50-59) sending: 'x' (6@60-69) thing (6@60-69): 'x' (6@60-69) sending: END (7@70-79) -70-79: syntax error, unexpected END, expecting 'x' +70.70-79.78: syntax error, unexpected END, expecting 'x' Freeing nterm thing (6@60-69) Freeing nterm line (3@30-59) Freeing nterm line (0@0-29) @@ -505,7 +503,7 @@ Parsing FAILED. # Upon stack overflow, all symbols on the stack should be destroyed. # Only check for yacc.c. AT_YACC_IF([ -AT_PARSER_CHECK([./input '(x)(x)(x)(x)(x)(x)(x)'], 2, +AT_PARSER_CHECK([./input '(x)(x)(x)(x)(x)(x)(x)'], 2, [], [[sending: '(' (0@0-9) sending: 'x' (1@10-19) thing (1@10-19): 'x' (1@10-19) @@ -540,7 +538,7 @@ sending: '(' (18@180-189) sending: 'x' (19@190-199) thing (19@190-199): 'x' (19@190-199) sending: ')' (20@200-209) -200-209: memory exhausted +200.200-209.208: memory exhausted Freeing nterm thing (19@190-199) Freeing nterm line (15@150-179) Freeing nterm line (12@120-149) @@ -552,7 +550,8 @@ Parsing FAILED (status 2). ]]) ]) -]) +AT_BISON_OPTION_POPDEFS +])# _AT_CHECK_PRINTER_AND_DESTRUCTOR # AT_CHECK_PRINTER_AND_DESTRUCTOR([BISON-OPTIONS], [UNION-FLAG], [SKIP_FLAG]) @@ -591,7 +590,7 @@ AT_CHECK_PRINTER_AND_DESTRUCTOR([%glr-parser], [with union]) # called for $end, and that $$ and @$ work correctly. AT_SETUP([Default tagless %printer and %destructor]) - +AT_BISON_OPTION_PUSHDEFS([%locations]) AT_DATA_GRAMMAR([[input.y]], [[%error-verbose %debug @@ -604,8 +603,8 @@ AT_DATA_GRAMMAR([[input.y]], %{ # include # include - static void yyerror (const char *msg); - static int yylex (void); +]AT_YYLEX_DECLARE[ +]AT_YYERROR_DECLARE[ # define USE(SYM) %} @@ -636,25 +635,8 @@ AT_DATA_GRAMMAR([[input.y]], start: 'a' 'b' 'c' 'd' 'e' { $$ = 'S'; USE(($1, $2, $3, $4, $5)); } ; %% - -static int -yylex (void) -{ - static char const input[] = "abcd"; - static size_t toknum; - if (! (toknum < sizeof input)) - abort (); - yylval = input[toknum++]; - yylloc.first_line = yylloc.last_line = 1; - yylloc.first_column = yylloc.last_column = toknum; - return yylval; -} - -static void -yyerror (const char *msg) -{ - fprintf (stderr, "%s\n", msg); -} +]AT_YYERROR_DEFINE[ +]AT_YYLEX_DEFINE([abcd], [[yylval = res]])[ int main (void) @@ -664,7 +646,7 @@ main (void) } ]]) -AT_CHECK([bison -o input.c input.y]) +AT_BISON_CHECK([-o input.c input.y]) AT_COMPILE([input]) AT_PARSER_CHECK([./input], 1, [[<> destructor for 'd' @ 4. @@ -687,7 +669,7 @@ Reading a token: Next token is token 'd' (1.4-1.4: <> printer for 'd' @ 4) Shifting token 'd' (1.4-1.4: <> printer for 'd' @ 4) Entering state 6 Reading a token: Now at end of input. -syntax error, unexpected $end, expecting 'e' +1.5-4: syntax error, unexpected $end, expecting 'e' Error: popping token 'd' (1.4-1.4: <> printer for 'd' @ 4) Stack now 0 1 3 5 Error: popping token 'c' (1.3-1.3: 'b'/'c' printer for 'c' @ 3) @@ -700,6 +682,7 @@ Cleanup: discarding lookahead token $end (1.5-1.5: ) Stack now 0 ]]) +AT_BISON_OPTION_POPDEFS AT_CLEANUP @@ -709,7 +692,7 @@ AT_CLEANUP ## ------------------------------------------------------ ## AT_SETUP([Default tagged and per-type %printer and %destructor]) - +AT_BISON_OPTION_PUSHDEFS AT_DATA_GRAMMAR([[input.y]], [[%error-verbose %debug @@ -717,8 +700,8 @@ AT_DATA_GRAMMAR([[input.y]], %{ # include # include - static void yyerror (const char *msg); - static int yylex (void); +]AT_YYERROR_DECLARE[ +]AT_YYLEX_DECLARE[ # define USE(SYM) %} @@ -764,22 +747,8 @@ start: ; %% - -static int -yylex (void) -{ - static char const input[] = "abcdef"; - static size_t toknum; - if (! (toknum < sizeof input)) - abort (); - return input[toknum++]; -} - -static void -yyerror (const char *msg) -{ - fprintf (stderr, "%s\n", msg); -} +]AT_YYERROR_DEFINE[ +]AT_YYLEX_DEFINE([abcdef])[ int main (void) @@ -789,7 +758,7 @@ main (void) } ]]) -AT_CHECK([bison -o input.c input.y]) +AT_BISON_CHECK([-o input.c input.y]) AT_COMPILE([input]) AT_PARSER_CHECK([./input], 1, [[<*>//e destructor. @@ -837,6 +806,7 @@ Cleanup: discarding lookahead token $end () Stack now 0 ]]) +AT_BISON_OPTION_POPDEFS AT_CLEANUP @@ -848,12 +818,13 @@ AT_CLEANUP AT_SETUP([Default %printer and %destructor for user-defined end token]) # _AT_CHECK_DEFAULT_PRINTER_AND_DESTRUCTOR_FOR_END_TOKEN(TYPED) -# ----------------------------------------------------------------------------- +# ------------------------------------------------------------- m4_define([_AT_CHECK_DEFAULT_PRINTER_AND_DESTRUCTOR_FOR_END_TOKEN], [m4_if($1, 0, [m4_pushdef([kind], []) m4_pushdef([not_kind], [*])], [m4_pushdef([kind], [*]) m4_pushdef([not_kind], [])]) +AT_BISON_OPTION_PUSHDEFS([%locations]) AT_DATA_GRAMMAR([[input]]$1[[.y]], [[%error-verbose %debug @@ -866,8 +837,8 @@ AT_DATA_GRAMMAR([[input]]$1[[.y]], %{ # include # include - static void yyerror (const char *msg); - static int yylex (void); +]AT_YYERROR_DECLARE[ +]AT_YYLEX_DECLARE[ # define USE(SYM) %} @@ -909,12 +880,7 @@ yylex (void) yylloc.first_column = yylloc.last_column = 1; return 0; } - -static void -yyerror (const char *msg) -{ - fprintf (stderr, "%s\n", msg); -} +]AT_YYERROR_DEFINE[ int main (void) @@ -923,8 +889,9 @@ main (void) return yyparse (); } ]]) +AT_BISON_OPTION_POPDEFS -AT_CHECK([bison -o input$1.c input$1.y]) +AT_BISON_CHECK([-o input$1.c input$1.y]) AT_COMPILE([input$1]) AT_PARSER_CHECK([./input$1], 0, [[<]]kind[[> for 'E' @ 1. @@ -969,15 +936,15 @@ AT_SETUP([Default %printer and %destructor are not for error or $undefined]) # semantic value, which would be initialized from the lookahead, which # would be destroyed separately. # - For $undefined, who knows what the semantic value would be. - +AT_BISON_OPTION_PUSHDEFS AT_DATA_GRAMMAR([[input.y]], [[%debug %{ # include # include - static void yyerror (const char *msg); - static int yylex (void); +]AT_YYERROR_DECLARE[ +]AT_YYLEX_DECLARE[ # define USE(SYM) %} @@ -998,24 +965,8 @@ start: ; %% - -static int -yylex (void) -{ - static char const input[] = "abd"; - static size_t toknum; - if (! (toknum < sizeof input)) - abort (); - yylval = input[toknum++]; - return yylval; -} - -static void -yyerror (const char *msg) -{ - fprintf (stderr, "%s\n", msg); -} - +]AT_YYERROR_DEFINE[ +]AT_YYLEX_DEFINE([abd], [yylval = res])[ int main (void) { @@ -1023,8 +974,9 @@ main (void) return yyparse (); } ]]) +AT_BISON_OPTION_POPDEFS -AT_CHECK([bison -o input.c input.y]) +AT_BISON_CHECK([-o input.c input.y]) AT_COMPILE([input]) AT_PARSER_CHECK([./input], [1], [], [[Starting parse @@ -1084,14 +1036,15 @@ AT_SETUP([Default %printer and %destructor are not for $accept]) # true for $undefined and the error token, so there are three warnings for # %printer and three for %destructor.) +AT_BISON_OPTION_PUSHDEFS AT_DATA_GRAMMAR([[input.y]], [[%debug /* So that %printer is actually compiled. */ %{ # include # include - static void yyerror (const char *msg); - static int yylex (void); +]AT_YYERROR_DECLARE[ +]AT_YYLEX_DECLARE[ # define USE(SYM) %} @@ -1112,30 +1065,17 @@ AT_DATA_GRAMMAR([[input.y]], start: { USE($$); } ; %% - -static int -yylex (void) -{ - static int called; - if (called++) - abort (); - return 0; -} - -static void -yyerror (const char *msg) -{ - fprintf (stderr, "%s\n", msg); -} - +]AT_YYERROR_DEFINE[ +]AT_YYLEX_DEFINE([])[ int main (void) { return yyparse (); } ]]) +AT_BISON_OPTION_POPDEFS -AT_CHECK([bison -o input.c input.y]) +AT_BISON_CHECK([-o input.c input.y]) AT_COMPILE([input]) AT_CLEANUP @@ -1148,17 +1088,18 @@ AT_CLEANUP AT_SETUP([Default %printer and %destructor for mid-rule values]) +AT_BISON_OPTION_PUSHDEFS AT_DATA_GRAMMAR([[input.y]], [[%debug /* So that %printer is actually compiled. */ %{ # include # include - static void yyerror (const char *msg); - static int yylex (void); +]AT_YYERROR_DECLARE[ +]AT_YYLEX_DECLARE[ # define USE(SYM) # define YYLTYPE int -# define YYLLOC_DEFAULT(Current, Rhs, N) +# define YYLLOC_DEFAULT(Current, Rhs, N) (void)(Rhs) # define YY_LOCATION_PRINT(File, Loc) %} @@ -1179,22 +1120,8 @@ start: ; %% - -static int -yylex (void) -{ - static int called; - if (called++) - abort (); - return 0; -} - -static void -yyerror (const char *msg) -{ - fprintf (stderr, "%s\n", msg); -} - +]AT_YYERROR_DEFINE[ +]AT_YYLEX_DEFINE([])[ int main (void) { @@ -1202,8 +1129,9 @@ main (void) return yyparse (); } ]]) +AT_BISON_OPTION_POPDEFS -AT_CHECK([bison -o input.c input.y], 0,, +AT_BISON_CHECK([-o input.c input.y], 0,, [[input.y:33.3-23: warning: unset value: $$ input.y:30.3-35.37: warning: unused value: $3 ]]) @@ -1246,3 +1174,288 @@ Stack now 0 ]]) AT_CLEANUP + + +## ----------------------- ## +## @$ implies %locations. ## +## ----------------------- ## + +# Bison once forgot to check for @$ in actions other than semantic actions. + +# AT_CHECK_ACTION_LOCATIONS(ACTION-DIRECTIVE) +# ------------------------------------------- +m4_define([AT_CHECK_ACTION_LOCATIONS], +[AT_SETUP([[@$ in ]$1[ implies %locations]]) +AT_BISON_OPTION_PUSHDEFS +AT_DATA_GRAMMAR([[input.y]], +[[%code { + #include +]AT_YYERROR_DECLARE[ +]AT_YYLEX_DECLARE[ +} + +%debug + +]$1[ { + fprintf (stderr, "%d\n", @$.first_line); +} ]m4_if($1, [%initial-action], [], [[start]])[ + +%% + +start: ; + +%% + +static int +yylex (void) +{ + return 0; +} + +]AT_YYERROR_DEFINE[ +int +main (void) +{ + return yyparse (); +} +]]) + +AT_BISON_CHECK([[-o input.c input.y]]) +AT_COMPILE([[input]]) +AT_BISON_OPTION_POPDEFS +AT_CLEANUP]) + +AT_CHECK_ACTION_LOCATIONS([[%initial-action]]) +AT_CHECK_ACTION_LOCATIONS([[%destructor]]) +AT_CHECK_ACTION_LOCATIONS([[%printer]]) + + +## ----------------------------------------------- ## +## Fix user actions without a trailing semicolon. ## +## ----------------------------------------------- ## + +AT_SETUP([[Fix user actions without a trailing semicolon]]) + +# This feature is undocumented, but we accidentally broke it in 2.3a, +# and there was a complaint at: +# . +AT_BISON_OPTION_PUSHDEFS +AT_DATA([input.y], +[[%% +start: test2 test1 test0 testc; + +test2 +: 'a' { semi; /* TEST:N:2 */ } +| 'b' { if (0) {no_semi} /* TEST:N:2 */ } +| 'c' { if (0) {semi;} /* TEST:N:2 */ } +| 'd' { semi; no_semi /* TEST:Y:2 */ } +| 'e' { semi(); no_semi() /* TEST:Y:2 */ } +| 'f' { semi[]; no_semi[] /* TEST:Y:2 */ } +| 'g' { semi++; no_semi++ /* TEST:Y:2 */ } +| 'h' { {no_semi} no_semi /* TEST:Y:2 */ } +| 'i' { {semi;} no_semi /* TEST:Y:2 */ } +; +test1 + : 'a' { semi; // TEST:N:1 ; +} | 'b' { if (0) {no_semi} // TEST:N:1 ; +} | 'c' { if (0) {semi;} // TEST:N:1 ; +} | 'd' { semi; no_semi // TEST:Y:1 ; +} | 'e' { semi(); no_semi() // TEST:Y:1 ; +} | 'f' { semi[]; no_semi[] // TEST:Y:1 ; +} | 'g' { semi++; no_semi++ // TEST:Y:1 ; +} | 'h' { {no_semi} no_semi // TEST:Y:1 ; +} | 'i' { {semi;} no_semi // TEST:Y:1 ; +} ; +test0 + : 'a' { semi; // TEST:N:1 {} +} | 'b' { if (0) {no_semi} // TEST:N:1 {} +} | 'c' { if (0) {semi;} // TEST:N:1 {} +} | 'd' { semi; no_semi // TEST:Y:1 {} +} | 'e' { semi(); no_semi() // TEST:Y:1 {} +} | 'f' { semi[]; no_semi[] // TEST:Y:1 {} +} | 'g' { semi++; no_semi++ // TEST:Y:1 {} +} | 'h' { {no_semi} no_semi // TEST:Y:1 {} +} | 'i' { {semi;} no_semi // TEST:Y:1 {} +} ; + +testc +: 'a' { +#define TEST_MACRO_N \ +[]"broken\" $ @ $$ @$ [];\ +string;"} +| 'b' { +no_semi +#define TEST_MACRO_N \ +[]"broken\" $ @ $$ @$ [];\ +string;"} +]]) +AT_BISON_OPTION_POPDEFS + +AT_BISON_CHECK([[-o input.c input.y]], [0], [], +[[input.y:8.48: warning: a ';' might be needed at the end of action code +input.y:8.48: warning: future versions of Bison will not add the ';' +input.y:9.48: warning: a ';' might be needed at the end of action code +input.y:9.48: warning: future versions of Bison will not add the ';' +input.y:10.48: warning: a ';' might be needed at the end of action code +input.y:10.48: warning: future versions of Bison will not add the ';' +input.y:11.48: warning: a ';' might be needed at the end of action code +input.y:11.48: warning: future versions of Bison will not add the ';' +input.y:12.48: warning: a ';' might be needed at the end of action code +input.y:12.48: warning: future versions of Bison will not add the ';' +input.y:13.48: warning: a ';' might be needed at the end of action code +input.y:13.48: warning: future versions of Bison will not add the ';' +input.y:20.1: warning: a ';' might be needed at the end of action code +input.y:20.1: warning: future versions of Bison will not add the ';' +input.y:21.1: warning: a ';' might be needed at the end of action code +input.y:21.1: warning: future versions of Bison will not add the ';' +input.y:22.1: warning: a ';' might be needed at the end of action code +input.y:22.1: warning: future versions of Bison will not add the ';' +input.y:23.1: warning: a ';' might be needed at the end of action code +input.y:23.1: warning: future versions of Bison will not add the ';' +input.y:24.1: warning: a ';' might be needed at the end of action code +input.y:24.1: warning: future versions of Bison will not add the ';' +input.y:25.1: warning: a ';' might be needed at the end of action code +input.y:25.1: warning: future versions of Bison will not add the ';' +input.y:31.1: warning: a ';' might be needed at the end of action code +input.y:31.1: warning: future versions of Bison will not add the ';' +input.y:32.1: warning: a ';' might be needed at the end of action code +input.y:32.1: warning: future versions of Bison will not add the ';' +input.y:33.1: warning: a ';' might be needed at the end of action code +input.y:33.1: warning: future versions of Bison will not add the ';' +input.y:34.1: warning: a ';' might be needed at the end of action code +input.y:34.1: warning: future versions of Bison will not add the ';' +input.y:35.1: warning: a ';' might be needed at the end of action code +input.y:35.1: warning: future versions of Bison will not add the ';' +input.y:36.1: warning: a ';' might be needed at the end of action code +input.y:36.1: warning: future versions of Bison will not add the ';' +]]) + +AT_MATCHES_CHECK([input.c], [[/\* TEST:N:2 \*/ \}$]], [[3]]) +AT_MATCHES_CHECK([input.c], [[/\* TEST:Y:2 \*/ ;\}$]], [[6]]) +AT_MATCHES_CHECK([input.c], [[// TEST:N:1 [;{}]*\n\}$]], [[6]]) +AT_MATCHES_CHECK([input.c], [[// TEST:Y:1 [;{}]*\n;\}$]], [[12]]) +AT_MATCHES_CHECK([input.c], [[#define TEST_MACRO_N \\\n\[\]"broken\\" \$ \@ \$\$ \@\$ \[\];\\\nstring;"\}]], [[2]]) + +AT_CLEANUP + + +## -------------------------------------------------- ## +## Destroying lookahead assigned by semantic action. ## +## -------------------------------------------------- ## + +AT_SETUP([[Destroying lookahead assigned by semantic action]]) + +AT_BISON_OPTION_PUSHDEFS +AT_DATA_GRAMMAR([input.y], +[[ +%code { + #include + #include +]AT_YYERROR_DECLARE[ +]AT_YYLEX_DECLARE[ + #define USE(Var) +} + +%destructor { fprintf (stderr, "'a' destructor\n"); } 'a' +%destructor { fprintf (stderr, "'b' destructor\n"); } 'b' + +%% + +// In a previous version of Bison, yychar assigned by the semantic +// action below was not translated into yytoken before the lookahead was +// discarded and thus before its destructor (selected according to +// yytoken) was called in order to return from yyparse. This would +// happen even if YYACCEPT was performed in a later semantic action as +// long as only consistent states with default reductions were visited +// in between. However, we leave YYACCEPT in the same semantic action +// for this test in order to show that skeletons cannot simply translate +// immediately after every semantic action because a semantic action +// that has set yychar might not always return normally. Instead, +// skeletons must translate before every use of yytoken. +start: 'a' accept { USE($1); } ; +accept: /*empty*/ { + assert (yychar == YYEMPTY); + yychar = 'b'; + YYACCEPT; +} ; + +%% +]AT_YYERROR_DEFINE[ +]AT_YYLEX_DEFINE([a])[ +int +main (void) +{ + return yyparse (); +} +]]) +AT_BISON_OPTION_POPDEFS +AT_BISON_CHECK([[-o input.c input.y]]) +AT_COMPILE([[input]]) +AT_PARSER_CHECK([[./input]], [[0]], [], +[['b' destructor +'a' destructor +]]) + +AT_CLEANUP + +## ---------- ## +## YYBACKUP. ## +## ---------- ## + +AT_SETUP([[YYBACKUP]]) + +AT_BISON_OPTION_PUSHDEFS([%pure-parser]) + +AT_DATA_GRAMMAR([input.y], +[[ +%error-verbose +%debug +%pure-parser +%code { +# include +# include +# include + + ]AT_YYERROR_DECLARE[ + static int yylex (YYSTYPE *yylval); +} +%% +input: + exp exp {} +; + +exp: + 'a' { printf ("a: %d\n", $1); } +| 'b' { YYBACKUP('a', 123); } +| 'c' 'd' { YYBACKUP('a', 456); } +; + +%% +]AT_YYERROR_DEFINE[ +static int +yylex (YYSTYPE *yylval) +{ + static char const input[] = "bcd"; + static size_t toknum; + assert (toknum < sizeof input); + *yylval = (toknum + 1) * 10; + return input[toknum++]; +} + +int +main (void) +{ + yydebug = !!getenv("YYDEBUG"); + return yyparse (); +} +]]) +AT_BISON_OPTION_POPDEFS + +AT_BISON_CHECK([[-o input.c input.y]]) +AT_COMPILE([[input]]) +AT_PARSER_CHECK([[./input]], [[0]], +[[a: 123 +a: 456 +]]) + +AT_CLEANUP