X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/dd60572a8b54ebc51421448f09f83f39bc0a4229..064e42b0aca1db0ca84b06b01cac5a40f3016591:/tests/glr-regression.at?ds=sidebyside diff --git a/tests/glr-regression.at b/tests/glr-regression.at index 23fda14a..a826a5e3 100644 --- a/tests/glr-regression.at +++ b/tests/glr-regression.at @@ -1,20 +1,20 @@ # Checking GLR Parsing: Regression Tests -*- Autotest -*- -# Copyright (C) 2002, 2003, 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) 2002-2003, 2005-2007, 2009-2012 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 <http://www.gnu.org/licenses/>. AT_BANNER([[GLR Regression Tests]]) @@ -24,17 +24,20 @@ AT_BANNER([[GLR Regression Tests]]) AT_SETUP([Badly Collapsed GLR States]) +AT_BISON_OPTION_PUSHDEFS AT_DATA_GRAMMAR([glr-regr1.y], [[/* Regression Test: Improper state compression */ /* Reported by Scott McPeak */ %{ #include <stdio.h> +#include <stdlib.h> +#include <assert.h> #define YYSTYPE int static YYSTYPE exprMerge (YYSTYPE x0, YYSTYPE x1); -int yylex (void); -void yyerror (char const *msg); +]AT_YYERROR_DECLARE[ +]AT_YYLEX_DECLARE[ %} @@ -64,38 +67,31 @@ static YYSTYPE exprMerge (YYSTYPE x0, YYSTYPE x1) return 0; } +const char *input = NULL; + int -main (void) +main (int argc, const char* argv[]) { + assert (argc == 2); + input = argv[1]; return yyparse (); } -void -yyerror (char const *msg) -{ - fprintf (stderr, "%s\n", msg); -} - +]AT_YYERROR_DEFINE[ int yylex (void) { - for (;;) - { - int ch = getchar (); - if (ch == EOF) - return 0; - else if (ch == 'B' || ch == 'P') - return ch; - } + return *input++; } ]]) +AT_BISON_OPTION_POPDEFS -AT_CHECK([[bison -o glr-regr1.c glr-regr1.y]], 0, [], -[glr-regr1.y: conflicts: 1 shift/reduce -]) +AT_BISON_CHECK([[-o glr-regr1.c glr-regr1.y]], 0, [], +[[glr-regr1.y: warning: 1 shift/reduce conflict [-Wconflicts-sr] +]]) AT_COMPILE([glr-regr1]) -AT_CHECK([[echo BPBPB | ./glr-regr1]], 0, +AT_PARSER_CHECK([[./glr-regr1 BPBPB]], 0, [[E -> 'B' E -> 'B' E -> E 'P' E @@ -115,6 +111,7 @@ AT_CLEANUP AT_SETUP([Improper handling of embedded actions and dollar(-N) in GLR parsers]) +AT_BISON_OPTION_PUSHDEFS AT_DATA_GRAMMAR([glr-regr2a.y], [[/* Regression Test: Improper handling of embedded actions and $-N */ /* Reported by S. Eken */ @@ -126,8 +123,9 @@ AT_DATA_GRAMMAR([glr-regr2a.y], #include <stdio.h> #include <stdlib.h> #include <string.h> - int yylex (void); - void yyerror (char const *); + #include <assert.h> + ]AT_YYERROR_DECLARE[ + ]AT_YYLEX_DECLARE[ %} %glr-parser @@ -167,15 +165,17 @@ var_printer: 'v' { printf ("Variable: '%s'\n", $-1); } %% - -FILE *input = NULL; +]AT_YYERROR_DEFINE[ +FILE *input; int yylex (void) { char buf[50]; char *s; - switch (fscanf (input, " %1[a-z,]", buf)) { + assert (!feof (stdin)); + switch (fscanf (input, " %1[a-z,]", buf)) + { case 1: return buf[0]; case EOF: @@ -185,42 +185,53 @@ yylex (void) } if (fscanf (input, "%49s", buf) != 1) return 0; - if (sizeof buf - 1 <= strlen (buf)) - abort (); + assert (strlen (buf) < sizeof buf - 1); s = (char *) malloc (strlen (buf) + 1); strcpy (s, buf); yylval = s; return 'V'; } -void -yyerror (char const *s) -{ printf ("%s\n", s); -} - int main (int argc, char **argv) { input = stdin; - if (argc == 2 && !(input = fopen (argv[1], "r"))) return 3; - return yyparse (); + if (argc == 2 && !(input = fopen (argv[1], "r"))) + return 3; + int res = yyparse (); + if (argc == 2 && fclose (input)) + return 4; + return res; } ]]) +AT_BISON_OPTION_POPDEFS -AT_CHECK([[bison -o glr-regr2a.c glr-regr2a.y]], 0, [], -[glr-regr2a.y: conflicts: 2 shift/reduce -]) +AT_BISON_CHECK([[-o glr-regr2a.c glr-regr2a.y]], 0, [], +[[glr-regr2a.y: warning: 2 shift/reduce conflicts [-Wconflicts-sr] +]]) AT_COMPILE([glr-regr2a]) -AT_CHECK([[echo s VARIABLE_1 t v x q | ./glr-regr2a]], 0, +AT_DATA([input1.txt], +[[s VARIABLE_1 t v x q +]]) +AT_PARSER_CHECK([[./glr-regr2a input1.txt]], 0, [[Variable: 'VARIABLE_1' -]], []) -AT_CHECK([[echo s VARIABLE_1 , ANOTHER_VARIABLE_2 t e | ./glr-regr2a]], 0, +]]) + +AT_DATA([input2.txt], +[[s VARIABLE_1 , ANOTHER_VARIABLE_2 t e +]]) +AT_PARSER_CHECK([[./glr-regr2a input2.txt]], +0, [[Varlist: 'VARIABLE_1,ANOTHER_VARIABLE_2' ]]) -AT_CHECK([[echo s VARIABLE_3 t v x | ./glr-regr2a]], 0, + +AT_DATA([input3.txt], +[[s VARIABLE_3 t v x +]]) +AT_PARSER_CHECK([[./glr-regr2a input3.txt]], 0, [[Variable: 'VARIABLE_3' -]], []) +]]) AT_CLEANUP @@ -231,17 +242,20 @@ AT_CLEANUP AT_SETUP([Improper merging of GLR delayed action sets]) +AT_BISON_OPTION_PUSHDEFS AT_DATA_GRAMMAR([glr-regr3.y], [[/* Regression Test: Improper merging of GLR delayed action sets. */ /* Reported by M. Rosien */ %{ #include <stdio.h> +#include <stdlib.h> #include <stdarg.h> +#include <assert.h> static int MergeRule (int x0, int x1); -static void yyerror (char const * s); -int yylex (void); +]AT_YYERROR_DECLARE[ +]AT_YYLEX_DECLARE[ #define RULE(x) (1 << (x)) @@ -282,15 +296,14 @@ NT6 : P1 NT1 O1 T3 P2 { $$ = RULE(11) | $2; } %merge<MergeRule> %% -static int MergeRule (int x0, int x1) { +static int +MergeRule (int x0, int x1) +{ return x0 | x1; } +]AT_YYERROR_DEFINE[ -static void yyerror(char const * s) { - fprintf(stderr,"error: %s\n",s); -} - -FILE *input = NULL; +FILE *input = YY_NULL; int P[] = { P1, P2 }; int O[] = { O1, O2 }; @@ -299,6 +312,7 @@ int T[] = { T1, T2, T3, T4 }; int yylex (void) { char inp[3]; + assert (!feof (stdin)); if (fscanf (input, "%2s", inp) == EOF) return 0; switch (inp[0]) @@ -310,21 +324,33 @@ int yylex (void) return BAD_CHAR; } -int main(int argc, char* argv[]) { +int +main(int argc, char* argv[]) +{ input = stdin; - if (argc == 2 && !(input = fopen (argv[1], "r"))) return 3; - return yyparse (); + if (argc == 2 && !(input = fopen (argv[1], "r"))) + return 3; + int res = yyparse (); + if (argc == 2 && fclose (input)) + return 4; + return res; } ]]) +AT_BISON_OPTION_POPDEFS -AT_CHECK([[bison -o glr-regr3.c glr-regr3.y]], 0, [], -[glr-regr3.y: conflicts: 1 shift/reduce, 1 reduce/reduce -]) +AT_BISON_CHECK([[-o glr-regr3.c glr-regr3.y]], 0, [], +[[glr-regr3.y: warning: 1 shift/reduce conflict [-Wconflicts-sr] +glr-regr3.y: warning: 1 reduce/reduce conflict [-Wconflicts-rr] +]]) AT_COMPILE([glr-regr3]) -AT_CHECK([[echo p1 t4 o2 p1 p1 t1 o1 t2 p2 o1 t3 p2 p2 | ./glr-regr3]], 0, +AT_DATA([input.txt], +[[p1 t4 o2 p1 p1 t1 o1 t2 p2 o1 t3 p2 p2 +]]) +AT_PARSER_CHECK([[./glr-regr3 input.txt]], +0, [[Result: 1c04 -]], []) +]]) AT_CLEANUP @@ -336,6 +362,7 @@ AT_CLEANUP AT_SETUP([Duplicate representation of merged trees]) +AT_BISON_OPTION_PUSHDEFS AT_DATA_GRAMMAR([glr-regr4.y], [[ %union { char *ptr; } @@ -348,8 +375,10 @@ AT_DATA_GRAMMAR([glr-regr4.y], #include <string.h> static char *merge (YYSTYPE, YYSTYPE); static char *make_value (char const *, char const *); - static void yyerror (char const *); - static int yylex (void); + ]AT_YYERROR_DECLARE[ + ]AT_YYLEX_DECLARE[ + static char *ptrs[100]; + static char **ptrs_next = ptrs; %} %% @@ -371,25 +400,23 @@ A2: 'a' { $$ = make_value ("A2", "'a'"); } ; B: 'a' { $$ = make_value ("B", "'a'"); } ; %% - -static int -yylex (void) -{ - static char const *input = "a"; - return *input++; -} +]AT_YYERROR_DEFINE[ +]AT_YYLEX_DEFINE(["a"])[ int main (void) { - return yyparse (); + int status = yyparse (); + while (ptrs_next != ptrs) + free (*--ptrs_next); + return status; } static char * make_value (char const *parent, char const *child) { char const format[] = "%s <- %s"; - char *value = + char *value = *ptrs_next++ = (char *) malloc (strlen (parent) + strlen (child) + sizeof format); sprintf (value, format, parent, child); return value; @@ -399,25 +426,20 @@ static char * merge (YYSTYPE s1, YYSTYPE s2) { char const format[] = "merge{ %s and %s }"; - char *value = + char *value = *ptrs_next++ = (char *) malloc (strlen (s1.ptr) + strlen (s2.ptr) + sizeof format); sprintf (value, format, s1.ptr, s2.ptr); return value; } - -static void -yyerror (char const *msg) -{ - fprintf (stderr, "%s\n", msg); -} ]]) +AT_BISON_OPTION_POPDEFS -AT_CHECK([[bison -o glr-regr4.c glr-regr4.y]], 0, [], -[glr-regr4.y: conflicts: 1 reduce/reduce -]) +AT_BISON_CHECK([[-o glr-regr4.c glr-regr4.y]], 0, [], +[[glr-regr4.y: warning: 1 reduce/reduce conflict [-Wconflicts-rr] +]]) AT_COMPILE([glr-regr4]) -AT_CHECK([[./glr-regr4]], 0, +AT_PARSER_CHECK([[./glr-regr4]], 0, [[merge{ S <- merge{ A <- A1 <- 'a' and A <- A2 <- 'a' } and S <- B <- 'a' } ]], []) @@ -431,13 +453,14 @@ AT_CLEANUP AT_SETUP([User destructor for unresolved GLR semantic value]) +AT_BISON_OPTION_PUSHDEFS AT_DATA_GRAMMAR([glr-regr5.y], [[ %{ #include <stdio.h> #include <stdlib.h> - static void yyerror (char const *); - static int yylex (void); + ]AT_YYERROR_DECLARE[ + ]AT_YYLEX_DECLARE[ enum { MAGIC_VALUE = -1057808125 }; /* originally chosen at random */ %} @@ -461,33 +484,22 @@ start: ; %% - -static int -yylex (void) -{ - static char const *input = "a"; - return *input++; -} - -static void -yyerror (char const *msg) -{ - fprintf (stderr, "%s\n", msg); -} - +]AT_YYLEX_DEFINE(["a"])[ +]AT_YYERROR_DEFINE[ int main (void) { return yyparse () != 1; } ]]) +AT_BISON_OPTION_POPDEFS -AT_CHECK([[bison -o glr-regr5.c glr-regr5.y]], 0, [], -[glr-regr5.y: conflicts: 1 reduce/reduce -]) +AT_BISON_CHECK([[-o glr-regr5.c glr-regr5.y]], 0, [], +[[glr-regr5.y: warning: 1 reduce/reduce conflict [-Wconflicts-rr] +]]) AT_COMPILE([glr-regr5]) -AT_CHECK([[./glr-regr5]], 0, [], +AT_PARSER_CHECK([[./glr-regr5]], 0, [], [syntax is ambiguous ]) @@ -501,13 +513,14 @@ AT_CLEANUP AT_SETUP([User destructor after an error during a split parse]) +AT_BISON_OPTION_PUSHDEFS AT_DATA_GRAMMAR([glr-regr6.y], [[ %{ #include <stdio.h> #include <stdlib.h> - static void yyerror (char const *); - static int yylex (void); + ]AT_YYERROR_DECLARE[ + ]AT_YYLEX_DECLARE[ %} %glr-parser @@ -523,33 +536,22 @@ AT_DATA_GRAMMAR([glr-regr6.y], start: 'a' | 'a' ; %% - -static int -yylex (void) -{ - static char const *input = "a"; - return *input++; -} - -static void -yyerror (char const *msg) -{ - fprintf (stderr, "%s\n", msg); -} - +]AT_YYERROR_DEFINE[ +]AT_YYLEX_DEFINE(["a"])[ int main (void) { return yyparse () != 1; } ]]) +AT_BISON_OPTION_POPDEFS -AT_CHECK([[bison -o glr-regr6.c glr-regr6.y]], 0, [], -[glr-regr6.y: conflicts: 1 reduce/reduce -]) +AT_BISON_CHECK([[-o glr-regr6.c glr-regr6.y]], 0, [], +[[glr-regr6.y: warning: 1 reduce/reduce conflict [-Wconflicts-rr] +]]) AT_COMPILE([glr-regr6]) -AT_CHECK([[./glr-regr6]], 0, +AT_PARSER_CHECK([[./glr-regr6]], 0, [Destructor called. ], [syntax is ambiguous @@ -565,22 +567,28 @@ AT_CLEANUP AT_SETUP([Duplicated user destructor for lookahead]) +AT_BISON_OPTION_PUSHDEFS AT_DATA_GRAMMAR([glr-regr7.y], [[ %{ #include <stdio.h> #include <stdlib.h> - static void yyerror (char const *); - static int yylex (void); + ]AT_YYERROR_DECLARE[ + ]AT_YYLEX_DECLARE[ #define YYSTACKEXPANDABLE 0 + typedef struct count_node { + int count; + struct count_node *prev; + } count_node; + static count_node *tail; %} %glr-parser -%union { int *count; } -%type <count> 'a' +%union { count_node *node; } +%type <node> 'a' %destructor { - if ((*$$)++) + if ($$->count++) fprintf (stderr, "Destructor called on same value twice.\n"); } 'a' @@ -599,35 +607,40 @@ stack2: 'a' ; static int yylex (void) { - yylval.count = (int *) malloc (sizeof (int)); - if (!yylval.count) + yylval.node = (count_node*) malloc (sizeof *yylval.node); + if (!yylval.node) { fprintf (stderr, "Test inconclusive.\n"); exit (EXIT_FAILURE); } - *yylval.count = 0; + yylval.node->count = 0; + yylval.node->prev = tail; + tail = yylval.node; return 'a'; } -static void -yyerror (char const *msg) -{ - fprintf (stderr, "%s\n", msg); -} - +]AT_YYERROR_DEFINE[ int main (void) { - return yyparse (); + int status = yyparse (); + while (tail) + { + count_node *prev = tail->prev; + free (tail); + tail = prev; + } + return status; } ]]) +AT_BISON_OPTION_POPDEFS -AT_CHECK([[bison -o glr-regr7.c glr-regr7.y]], 0, [], -[glr-regr7.y: conflicts: 2 reduce/reduce -]) +AT_BISON_CHECK([[-o glr-regr7.c glr-regr7.y]], 0, [], +[[glr-regr7.y: warning: 2 reduce/reduce conflicts [-Wconflicts-rr] +]]) AT_COMPILE([glr-regr7]) -AT_CHECK([[./glr-regr7]], 2, [], +AT_PARSER_CHECK([[./glr-regr7]], 2, [], [memory exhausted ]) @@ -643,14 +656,14 @@ AT_CLEANUP AT_SETUP([Incorrectly initialized location for empty right-hand side in GLR]) +AT_BISON_OPTION_PUSHDEFS AT_DATA_GRAMMAR([glr-regr8.y], [[ %{ #include <stdio.h> #include <stdlib.h> - static void yyerror (char const *); - static int yylex (void); - static void yyerror (char const *msg); + ]AT_YYERROR_DECLARE[ + ]AT_YYLEX_DECLARE[ %} %token T_CONSTANT @@ -684,12 +697,7 @@ OptSignalWord : /* empty */ %% -void -yyerror (char const *msg) -{ - fprintf (stderr, "%s\n", msg); -} - +]AT_YYERROR_DEFINE[ static int lexIndex; int yylex (void) @@ -697,6 +705,8 @@ int yylex (void) lexIndex += 1; switch (lexIndex) { + default: + abort (); case 1: yylloc.first_column = 1; yylloc.last_column = 9; @@ -705,7 +715,7 @@ int yylex (void) yylloc.first_column = 13; yylloc.last_column = 17; return T_PORT; - default: + case 3: return 0; } } @@ -717,13 +727,14 @@ main (void) return 0; } ]]) +AT_BISON_OPTION_POPDEFS -AT_CHECK([[bison -o glr-regr8.c glr-regr8.y]], 0, [], -[glr-regr8.y: conflicts: 1 reduce/reduce -]) +AT_BISON_CHECK([[-o glr-regr8.c glr-regr8.y]], 0, [], +[[glr-regr8.y: warning: 1 reduce/reduce conflict [-Wconflicts-rr] +]]) AT_COMPILE([glr-regr8]) -AT_CHECK([[./glr-regr8]], 0, +AT_PARSER_CHECK([[./glr-regr8]], 0, [empty: 9/9 1/9 - 9/9 - 13/17 ], @@ -739,13 +750,14 @@ AT_CLEANUP AT_SETUP([No users destructors if stack 0 deleted]) +AT_BISON_OPTION_PUSHDEFS AT_DATA_GRAMMAR([glr-regr9.y], [[ %{ # include <stdio.h> # include <stdlib.h> - static void yyerror (char const *); - static int yylex (void); + ]AT_YYERROR_DECLARE[ + ]AT_YYLEX_DECLARE[ # define YYSTACKEXPANDABLE 0 static int tokens = 0; static int destructors = 0; @@ -781,12 +793,7 @@ yylex (void) return 'a'; } -static void -yyerror (char const *msg) -{ - fprintf (stderr, "%s\n", msg); -} - +]AT_YYERROR_DEFINE[ int main (void) { @@ -800,13 +807,14 @@ main (void) return !exit_status; } ]]) +AT_BISON_OPTION_POPDEFS -AT_CHECK([[bison -o glr-regr9.c glr-regr9.y]], 0, [], -[glr-regr9.y: conflicts: 1 reduce/reduce -]) +AT_BISON_CHECK([[-o glr-regr9.c glr-regr9.y]], 0, [], +[[glr-regr9.y: warning: 1 reduce/reduce conflict [-Wconflicts-rr] +]]) AT_COMPILE([glr-regr9]) -AT_CHECK([[./glr-regr9]], 0, [], +AT_PARSER_CHECK([[./glr-regr9]], 0, [], [memory exhausted ]) @@ -819,12 +827,14 @@ AT_CLEANUP AT_SETUP([Corrupted semantic options if user action cuts parse]) +AT_BISON_OPTION_PUSHDEFS AT_DATA_GRAMMAR([glr-regr10.y], [[ %{ +# include <stdlib.h> # include <stdio.h> - static void yyerror (char const *); - static int yylex (void); + ]AT_YYERROR_DECLARE[ + ]AT_YYLEX_DECLARE[ #define GARBAGE_SIZE 50 static char garbage[GARBAGE_SIZE]; %} @@ -841,18 +851,8 @@ start: ; %% - -static void -yyerror (char const *msg) -{ - fprintf (stderr, "%s\n", msg); -} - -static int -yylex (void) -{ - return 0; -} +]AT_YYERROR_DEFINE[ +]AT_YYLEX_DEFINE[ int main (void) @@ -863,13 +863,14 @@ main (void) return yyparse (); } ]]) +AT_BISON_OPTION_POPDEFS -AT_CHECK([[bison -o glr-regr10.c glr-regr10.y]], 0, [], -[glr-regr10.y: conflicts: 1 reduce/reduce -]) +AT_BISON_CHECK([[-o glr-regr10.c glr-regr10.y]], 0, [], +[[glr-regr10.y: warning: 1 reduce/reduce conflict [-Wconflicts-rr] +]]) AT_COMPILE([glr-regr10]) -AT_CHECK([[./glr-regr10]], 0, [], []) +AT_PARSER_CHECK([[./glr-regr10]], 0, [], []) AT_CLEANUP @@ -880,12 +881,13 @@ AT_CLEANUP AT_SETUP([Undesirable destructors if user action cuts parse]) +AT_BISON_OPTION_PUSHDEFS AT_DATA_GRAMMAR([glr-regr11.y], [[ %{ # include <stdlib.h> - static void yyerror (char const *); - static int yylex (void); + ]AT_YYERROR_DECLARE[ + ]AT_YYLEX_DECLARE[ static int destructors = 0; # define USE(val) %} @@ -904,18 +906,8 @@ start: %% -static void -yyerror (char const *msg) -{ - fprintf (stderr, "%s\n", msg); -} - -static int -yylex (void) -{ - static char const *input = "a"; - return *input++; -} +]AT_YYERROR_DEFINE[ +]AT_YYLEX_DEFINE(["a"])[ int main (void) @@ -929,13 +921,14 @@ main (void) return exit_status; } ]]) +AT_BISON_OPTION_POPDEFS -AT_CHECK([[bison -o glr-regr11.c glr-regr11.y]], 0, [], -[glr-regr11.y: conflicts: 1 reduce/reduce -]) +AT_BISON_CHECK([[-o glr-regr11.c glr-regr11.y]], 0, [], +[[glr-regr11.y: warning: 1 reduce/reduce conflict [-Wconflicts-rr] +]]) AT_COMPILE([glr-regr11]) -AT_CHECK([[./glr-regr11]], 0, [], []) +AT_PARSER_CHECK([[./glr-regr11]], 0, [], []) AT_CLEANUP @@ -946,6 +939,7 @@ AT_CLEANUP AT_SETUP([Leaked semantic values if user action cuts parse]) +AT_BISON_OPTION_PUSHDEFS AT_DATA_GRAMMAR([glr-regr12.y], [[ %glr-parser @@ -958,9 +952,10 @@ AT_DATA_GRAMMAR([glr-regr12.y], %{ # include <stdlib.h> +# include <assert.h> static int merge (YYSTYPE, YYSTYPE); - static void yyerror (char const *); - static int yylex (void); + ]AT_YYERROR_DECLARE[ + ]AT_YYLEX_DECLARE[ static int parent_rhs_before_value = 0; static int merged_value = 0; static int parent_rhs_after_value = 0; @@ -1020,21 +1015,10 @@ merge (YYSTYPE s1, YYSTYPE s2) return dummy; } -static void -yyerror (char const *msg) -{ - fprintf (stderr, "%s\n", msg); -} - -static int -yylex (void) -{ - static int const input[] = { PARENT_RHS_AFTER, 0 }; - static const int *inputp = input; - if (*inputp == PARENT_RHS_AFTER) - parent_rhs_after_value = 1; - return *inputp++; -} +]AT_YYERROR_DEFINE[ +]AT_YYLEX_DEFINE([{ PARENT_RHS_AFTER, 0 }], + [if (res == PARENT_RHS_AFTER) + parent_rhs_after_value = 1;])[ int main (void) @@ -1058,13 +1042,15 @@ main (void) return exit_status; } ]]) +AT_BISON_OPTION_POPDEFS -AT_CHECK([[bison -o glr-regr12.c glr-regr12.y]], 0, [], -[glr-regr12.y: conflicts: 1 shift/reduce, 1 reduce/reduce -]) +AT_BISON_CHECK([[-o glr-regr12.c glr-regr12.y]], 0, [], +[[glr-regr12.y: warning: 1 shift/reduce conflict [-Wconflicts-sr] +glr-regr12.y: warning: 1 reduce/reduce conflict [-Wconflicts-rr] +]]) AT_COMPILE([glr-regr12]) -AT_CHECK([[./glr-regr12]], 0, [], []) +AT_PARSER_CHECK([[./glr-regr12]], 0, [], []) AT_CLEANUP @@ -1077,6 +1063,7 @@ AT_CLEANUP AT_SETUP([Incorrect lookahead during deterministic GLR]) +AT_BISON_OPTION_PUSHDEFS AT_DATA_GRAMMAR([glr-regr13.y], [[ /* Tests: @@ -1088,8 +1075,9 @@ AT_DATA_GRAMMAR([glr-regr13.y], %{ #include <stdio.h> - static void yyerror (char const *); - static int yylex (void); + #include <assert.h> + ]AT_YYERROR_DECLARE[ + ]AT_YYLEX_DECLARE[ static void print_lookahead (char const *); #define USE(value) %} @@ -1140,22 +1128,9 @@ change_lookahead: %% -static void -yyerror (char const *msg) -{ - fprintf (stderr, "%s\n", msg); -} - -static int -yylex (void) -{ - static char const *input = "ab"; - static int i = 0; - yylloc.first_line = yylloc.last_line = 1; - yylloc.first_column = yylloc.last_column = i + 1; - yylval.value = input[i] + 'A' - 'a'; - return input[i++]; -} +]AT_YYERROR_DEFINE[ +]AT_YYLEX_DEFINE(["ab"], + [yylval.value = res + 'A' - 'a'])[ static void print_lookahead (char const *reduction) @@ -1185,11 +1160,12 @@ main (void) return yyparse (); } ]]) +AT_BISON_OPTION_POPDEFS -AT_CHECK([[bison -o glr-regr13.c glr-regr13.y]], 0, [], []) +AT_BISON_CHECK([[-o glr-regr13.c glr-regr13.y]], 0, [], []) AT_COMPILE([glr-regr13]) -AT_CHECK([[./glr-regr13]], 0, +AT_PARSER_CHECK([[./glr-regr13]], 0, [defstate_init <- empty string: yychar=YYEMPTY nondefstate <- empty string: @@ -1211,6 +1187,7 @@ AT_CLEANUP AT_SETUP([Incorrect lookahead during nondeterministic GLR]) +AT_BISON_OPTION_PUSHDEFS AT_DATA_GRAMMAR([glr-regr14.y], [[ /* Tests: @@ -1235,9 +1212,11 @@ AT_DATA_GRAMMAR([glr-regr14.y], %union { char value; } %{ + #include <stdlib.h> #include <stdio.h> - static void yyerror (char const *); - static int yylex (void); + #include <assert.h> + ]AT_YYERROR_DECLARE[ + ]AT_YYLEX_DECLARE[ static void print_lookahead (char const *); static char merge (union YYSTYPE, union YYSTYPE); #define USE(value) @@ -1346,21 +1325,17 @@ no_look: %% -static void -yyerror (char const *msg) -{ - fprintf (stderr, "%s\n", msg); -} - +]AT_YYERROR_DEFINE[ static int yylex (void) { - static char const *input = "abcdddd"; - static int i = 0; + static char const input[] = "abcdddd"; + static size_t toknum; + assert (toknum < sizeof input); yylloc.first_line = yylloc.last_line = 1; - yylloc.first_column = yylloc.last_column = i + 1; - yylval.value = input[i] + 'A' - 'a'; - return input[i++]; + yylloc.first_column = yylloc.last_column = toknum + 1; + yylval.value = input[toknum] + 'A' - 'a'; + return input[toknum++]; } static void @@ -1398,13 +1373,14 @@ main (void) return yyparse (); } ]]) +AT_BISON_OPTION_POPDEFS -AT_CHECK([[bison -o glr-regr14.c glr-regr14.y]], 0, [], -[glr-regr14.y: conflicts: 3 reduce/reduce -]) +AT_BISON_CHECK([[-o glr-regr14.c glr-regr14.y]], 0, [], +[[glr-regr14.y: warning: 3 reduce/reduce conflicts [-Wconflicts-rr] +]]) AT_COMPILE([glr-regr14]) -AT_CHECK([[./glr-regr14]], 0, +AT_PARSER_CHECK([[./glr-regr14]], 0, [conflict <- empty string: yychar='a', yylval='A', yylloc=(1,1),(1,1) defstate_look <- empty string: @@ -1428,6 +1404,7 @@ AT_CLEANUP AT_SETUP([Leaked semantic values when reporting ambiguity]) +AT_BISON_OPTION_PUSHDEFS AT_DATA_GRAMMAR([glr-regr15.y], [[ %glr-parser @@ -1435,8 +1412,8 @@ AT_DATA_GRAMMAR([glr-regr15.y], %{ # include <stdlib.h> - static void yyerror (char const *); - static int yylex (void); + ]AT_YYERROR_DECLARE[ + ]AT_YYLEX_DECLARE[ static int parent_rhs_before_value = 0; # define USE(val) %} @@ -1474,18 +1451,8 @@ ambiguity1: ; ambiguity2: ; %% - -static void -yyerror (char const *msg) -{ - fprintf (stderr, "%s\n", msg); -} - -static int -yylex (void) -{ - return 0; -} +]AT_YYERROR_DEFINE[ +]AT_YYLEX_DEFINE[ int main (void) @@ -1499,13 +1466,14 @@ main (void) return exit_status; } ]]) +AT_BISON_OPTION_POPDEFS -AT_CHECK([[bison -o glr-regr15.c glr-regr15.y]], 0, [], -[glr-regr15.y: conflicts: 2 reduce/reduce -]) +AT_BISON_CHECK([[-o glr-regr15.c glr-regr15.y]], 0, [], +[[glr-regr15.y: warning: 2 reduce/reduce conflicts [-Wconflicts-rr] +]]) AT_COMPILE([glr-regr15]) -AT_CHECK([[./glr-regr15]], 0, [], +AT_PARSER_CHECK([[./glr-regr15]], 0, [], [syntax is ambiguous ]) @@ -1517,6 +1485,8 @@ AT_CLEANUP ## ------------------------------------------------------------------------- ## AT_SETUP([Leaked lookahead after nondeterministic parse syntax error]) + +AT_BISON_OPTION_PUSHDEFS AT_DATA_GRAMMAR([glr-regr16.y], [[ %glr-parser @@ -1524,8 +1494,9 @@ AT_DATA_GRAMMAR([glr-regr16.y], %{ # include <stdlib.h> - static void yyerror (char const *); - static int yylex (void); +# include <assert.h> + ]AT_YYERROR_DECLARE[ + ]AT_YYLEX_DECLARE[ static int lookahead_value = 0; # define USE(val) %} @@ -1538,20 +1509,10 @@ alt2: ; %% -static void -yyerror (char const *msg) -{ - fprintf (stderr, "%s\n", msg); -} - -static int -yylex (void) -{ - static char const *input = "ab"; - if (*input == 'b') - lookahead_value = 1; - return *input++; -} +]AT_YYERROR_DEFINE[ +]AT_YYLEX_DEFINE(["ab"], + [if (res == 'b') + lookahead_value = 1])[ int main (void) @@ -1565,13 +1526,14 @@ main (void) return exit_status; } ]]) +AT_BISON_OPTION_POPDEFS -AT_CHECK([[bison -o glr-regr16.c glr-regr16.y]], 0, [], -[glr-regr16.y: conflicts: 1 reduce/reduce -]) +AT_BISON_CHECK([[-o glr-regr16.c glr-regr16.y]], 0, [], +[[glr-regr16.y: warning: 1 reduce/reduce conflict [-Wconflicts-rr] +]]) AT_COMPILE([glr-regr16]) -AT_CHECK([[./glr-regr16]], 0, [], +AT_PARSER_CHECK([[./glr-regr16]], 0, [], [syntax error ]) @@ -1583,27 +1545,23 @@ AT_CLEANUP ## ------------------------------------------------------------------------- ## AT_SETUP([Uninitialized location when reporting ambiguity]) + +AT_BISON_OPTION_PUSHDEFS([%glr-parser %locations %define api.pure]) + AT_DATA_GRAMMAR([glr-regr17.y], [[ %glr-parser %locations -%pure-parser +%define api.pure %error-verbose %union { int dummy; } %{ - static void yyerror (YYLTYPE *, char const *); - static int yylex (YYSTYPE *, YYLTYPE *); + ]AT_YYERROR_DECLARE[ + ]AT_YYLEX_DECLARE[ %} -%initial-action { - @$.first_line = 1; - @$.first_column = 1; - @$.last_line = 1; - @$.last_column = 1; -} - %% /* Tests the case of an empty RHS that has inherited the location of the @@ -1624,24 +1582,20 @@ empty1: ; empty2: ; %% +# include <assert.h> -static void -yyerror (YYLTYPE *locp, char const *msg) -{ - fprintf (stderr, "Error at %d.%d-%d.%d: %s.\n", locp->first_line, - locp->first_column, locp->last_line, locp->last_column, msg); -} - +]AT_YYERROR_DEFINE[ static int yylex (YYSTYPE *lvalp, YYLTYPE *llocp) { static char const input[] = "ab"; - static char const *inputp = input; + static size_t toknum; + assert (toknum < sizeof input); lvalp->dummy = 0; llocp->first_line = llocp->last_line = 2; - llocp->first_column = inputp - input + 1; + llocp->first_column = toknum + 1; llocp->last_column = llocp->first_column + 1; - return *inputp++; + return input[toknum++]; } int @@ -1650,14 +1604,15 @@ main (void) return yyparse () != 1; } ]]) +AT_BISON_OPTION_POPDEFS -AT_CHECK([[bison -o glr-regr17.c glr-regr17.y]], 0, [], -[glr-regr17.y: conflicts: 3 reduce/reduce -]) +AT_BISON_CHECK([[-o glr-regr17.c glr-regr17.y]], 0, [], +[[glr-regr17.y: warning: 3 reduce/reduce conflicts [-Wconflicts-rr] +]]) AT_COMPILE([glr-regr17]) -AT_CHECK([[./glr-regr17]], 0, [], -[Error at 1.1-2.3: syntax is ambiguous. +AT_PARSER_CHECK([[./glr-regr17]], 0, [], +[1.1-2.2: syntax is ambiguous ]) AT_CLEANUP @@ -1668,12 +1623,15 @@ AT_CLEANUP ## -------------------------------------------------------------## AT_SETUP([Missed %merge type warnings when LHS type is declared later]) + +AT_BISON_OPTION_PUSHDEFS AT_DATA_GRAMMAR([glr-regr18.y], [[%glr-parser %{ - static void yyerror (char const *); - static int yylex (); + #include <stdlib.h> + ]AT_YYERROR_DECLARE[ + ]AT_YYLEX_DECLARE[ %} %union { @@ -1693,31 +1651,125 @@ sym3: %merge<merge> { $$ = 0; } ; %type <type3> sym3; %% - -static void -yyerror (char const *msg) +]AT_YYERROR_DEFINE[ +]AT_YYLEX_DEFINE[ +int +main (void) { - fprintf (stderr, "%s\n", msg); + return yyparse (); } +]]) +AT_BISON_OPTION_POPDEFS + +AT_BISON_CHECK([[-o glr-regr18.c glr-regr18.y]], 1, [], +[[glr-regr18.y:26.18-24: error: result type clash on merge function 'merge': <type2> != <type1> +glr-regr18.y:25.18-24: previous declaration +glr-regr18.y:27.13-19: error: result type clash on merge function 'merge': <type3> != <type2> +glr-regr18.y:26.18-24: previous declaration +]]) + +AT_CLEANUP -static int -yylex () -{ - return 0; -} +## ------------------- ## +## Ambiguity reports. ## +## ------------------- ## + +AT_SETUP([Ambiguity reports]) + +AT_BISON_OPTION_PUSHDEFS +AT_DATA_GRAMMAR([input.y], +[[ +%{ + #include <stdio.h> + #include <stdlib.h> + ]AT_YYERROR_DECLARE[ + ]AT_YYLEX_DECLARE[ +%} + +%debug +%glr-parser + +%% +start: + 'a' b 'c' d +| 'a' b 'c' d +; +b: 'b'; +d: /* nada. */; +%% +]AT_YYLEX_DEFINE(["abc"])[ +]AT_YYERROR_DEFINE[ int main (void) { - return yyparse (); + yydebug = 1; + return !!yyparse (); } ]]) +AT_BISON_OPTION_POPDEFS -AT_CHECK([[bison -o glr-regr18.c glr-regr18.y]], 0, [], -[glr-regr18.y:27.18-24: warning: result type clash on merge function `merge': <type2> != <type1> -glr-regr18.y:26.18-24: warning: previous declaration -glr-regr18.y:28.13-19: warning: result type clash on merge function `merge': <type3> != <type2> -glr-regr18.y:27.18-24: warning: previous declaration +AT_BISON_CHECK([[-o input.c input.y]], 0, [], +[[input.y: warning: 1 reduce/reduce conflict [-Wconflicts-rr] +]]) +AT_COMPILE([input]) + +AT_PARSER_CHECK([[./input]], 1, [], +[Starting parse +Entering state 0 +Reading a token: Next token is token 'a' () +Shifting token 'a' () +Entering state 1 +Reading a token: Next token is token 'b' () +Shifting token 'b' () +Entering state 3 +Reducing stack 0 by rule 3 (line 25): + $1 = token 'b' () +-> $$ = nterm b () +Entering state 4 +Reading a token: Next token is token 'c' () +Shifting token 'c' () +Entering state 6 +Reducing stack 0 by rule 4 (line 26): +-> $$ = nterm d () +Entering state 7 +Reading a token: Now at end of input. +Stack 0 Entering state 7 +Now at end of input. +Splitting off stack 1 from 0. +Reduced stack 1 by rule #2; action deferred. Now in state 2. +Stack 1 Entering state 2 +Now at end of input. +Reduced stack 0 by rule #1; action deferred. Now in state 2. +Merging stack 0 into stack 1. +Stack 1 Entering state 2 +Now at end of input. +Removing dead stacks. +Rename stack 1 -> 0. +On stack 0, shifting token $end () +Stack 0 now in state #5 +Ambiguity detected. +Option 1, + start -> <Rule 1, tokens 1 .. 3> + 'a' <tokens 1 .. 1> + b <tokens 2 .. 2> + 'c' <tokens 3 .. 3> + d <empty> + +Option 2, + start -> <Rule 2, tokens 1 .. 3> + 'a' <tokens 1 .. 1> + b <tokens 2 .. 2> + 'c' <tokens 3 .. 3> + d <empty> + +syntax is ambiguous +Cleanup: popping token $end () +Cleanup: popping unresolved nterm start () +Cleanup: popping nterm d () +Cleanup: popping token 'c' () +Cleanup: popping nterm b () +Cleanup: popping token 'a' () ]) AT_CLEANUP