yydestroyStackItem.

[bison.git] / tests / conflicts.at

diff --git a/tests/conflicts.at b/tests/conflicts.at
index 79562a9337e534fa945f9d1921ab6ee1000f3878..9b503b63ae299d3fec097ee56996b7af8608463e 100644 (file)
--- a/tests/conflicts.at
+++ b/tests/conflicts.at
@@ -1,5 +1,6 @@
 # Exercising Bison on conflicts.                         -*- Autotest -*-
 # Exercising Bison on conflicts.                         -*- Autotest -*-

-# Copyright (C) 2002 Free Software Foundation, Inc.
+
+# Copyright (C) 2002, 2003, 2004, 2005 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
 
 # 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


@@ -13,8 +14,8 @@
 
 # You should have received a copy of the GNU General Public License
 # along with this program; if not, write to the Free Software
 
 # 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., 59 Temple Place - Suite 330, Boston, MA
-# 02111-1307, USA.
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+# 02110-1301, USA.

 
 AT_BANNER([[Conflicts.]])
 
 
 AT_BANNER([[Conflicts.]])
 


@@ -37,7 +38,9 @@ exp: e 'e';
 e: 'e' | /* Nothing. */;
 ]])
 
 e: 'e' | /* Nothing. */;
 ]])
 

-AT_CHECK([bison input.y -o input.c])
+AT_CHECK([bison -o input.c input.y], 0, [],
+[[input.y:4.9: warning: rule never reduced because of conflicts: e: /* empty */
+]])

 
 AT_CLEANUP
 
 
 AT_CLEANUP
 


@@ -48,24 +51,17 @@ AT_CLEANUP
 
 AT_SETUP([%nonassoc and eof])
 
 
 AT_SETUP([%nonassoc and eof])
 

-AT_DATA([input.y],
+AT_DATA_GRAMMAR([input.y],

 [[
 %{
 [[
 %{

-#include <config.h>
-/* We don't need a perfect malloc for these tests. */
-#undef malloc

 #include <stdio.h>
 #include <stdio.h>

-
-#if STDC_HEADERS
-# include <stdlib.h>
-#endif
+#include <stdlib.h>

 
 #define YYERROR_VERBOSE 1
 static void
 yyerror (const char *msg)
 {
   fprintf (stderr, "%s\n", msg);
 
 #define YYERROR_VERBOSE 1
 static void
 yyerror (const char *msg)
 {
   fprintf (stderr, "%s\n", msg);

-  exit (1);

 }
 
 /* The current argument. */
 }
 
 /* The current argument. */


@@ -101,7 +97,7 @@ main (int argc, const char *argv[])
 ]])
 
 # Specify the output files to avoid problems on different file systems.
 ]])
 
 # Specify the output files to avoid problems on different file systems.

-AT_CHECK([bison input.y -o input.c])
+AT_CHECK([bison -o input.c input.y])

 AT_COMPILE([input])
 
 AT_PARSER_CHECK([./input '0<0'])
 AT_COMPILE([input])
 
 AT_PARSER_CHECK([./input '0<0'])


@@ -109,16 +105,16 @@ AT_PARSER_CHECK([./input '0<0'])
 # no one has ever spotted it!  The messages are *wrong*: there should
 # be nothing there, it should be expected eof.
 AT_PARSER_CHECK([./input '0<0<0'], [1], [],
 # no one has ever spotted it!  The messages are *wrong*: there should
 # be nothing there, it should be expected eof.
 AT_PARSER_CHECK([./input '0<0<0'], [1], [],

-         [parse error, unexpected '<', expecting '<' or '>'
+         [syntax error, unexpected '<', expecting '<' or '>'

 ])
 
 AT_PARSER_CHECK([./input '0>0'])
 AT_PARSER_CHECK([./input '0>0>0'], [1], [],
 ])
 
 AT_PARSER_CHECK([./input '0>0'])
 AT_PARSER_CHECK([./input '0>0>0'], [1], [],

-         [parse error, unexpected '>', expecting '<' or '>'
+         [syntax error, unexpected '>', expecting '<' or '>'

 ])
 
 AT_PARSER_CHECK([./input '0<0>0'], [1], [],
 ])
 
 AT_PARSER_CHECK([./input '0<0>0'], [1], [],

-         [parse error, unexpected '>', expecting '<' or '>'
+         [syntax error, unexpected '>', expecting '<' or '>'

 ])
 
 AT_CLEANUP
 ])
 
 AT_CLEANUP


@@ -139,18 +135,18 @@ AT_DATA([input.y],
 exp: exp OP exp | NUM;
 ]])
 
 exp: exp OP exp | NUM;
 ]])
 

-AT_CHECK([bison input.y -o input.c --report=all], 0, [],
-[input.y contains 1 shift/reduce conflict.
+AT_CHECK([bison -o input.c --report=all input.y], 0, [],
+[input.y: conflicts: 1 shift/reduce

 ])
 
 # Check the contents of the report.
 AT_CHECK([cat input.output], [],
 ])
 
 # Check the contents of the report.
 AT_CHECK([cat input.output], [],

-[[State 5 contains 1 shift/reduce conflict.
+[[State 5 conflicts: 1 shift/reduce

 
 
 Grammar
 
 
 
 Grammar
 

-    0 $axiom: exp $
+    0 $accept: exp $end

 
     1 exp: exp OP exp
     2    | NUM
 
     1 exp: exp OP exp
     2    | NUM


@@ -158,7 +154,7 @@ Grammar
 
 Terminals, with rules where they appear
 
 
 Terminals, with rules where they appear
 

-$ (0) 0
+$end (0) 0

 error (256)
 NUM (258) 2
 OP (259) 1
 error (256)
 NUM (258) 2
 OP (259) 1


@@ -166,7 +162,7 @@ OP (259) 1
 
 Nonterminals, with rules where they appear
 
 
 Nonterminals, with rules where they appear
 

-$axiom (5)
+$accept (5)

     on left: 0
 exp (6)
     on left: 1 2, on right: 0 1
     on left: 0
 exp (6)
     on left: 1 2, on right: 0 1


@@ -174,7 +170,7 @@ exp (6)
 
 state 0
 
 
 state 0
 

-    0 $axiom: . exp $
+    0 $accept: . exp $end

     1 exp: . exp OP exp
     2    | . NUM
 
     1 exp: . exp OP exp
     2    | . NUM
 


@@ -192,18 +188,18 @@ state 1
 
 state 2
 
 
 state 2
 

-    0 $axiom: exp . $
+    0 $accept: exp . $end

     1 exp: exp . OP exp
 
     1 exp: exp . OP exp
 

-    $   shift, and go to state 3
-    OP  shift, and go to state 4
+    $end  shift, and go to state 3
+    OP    shift, and go to state 4

 
 
 state 3
 
 
 
 state 3
 

-    0 $axiom: exp $ .
+    0 $accept: exp $end .

 
 

-    $default   accept
+    $default  accept

 
 
 state 4
 
 
 state 4


@@ -219,8 +215,8 @@ state 4
 
 state 5
 
 
 state 5
 

-    1 exp: exp . OP exp  [$, OP]
-    1    | exp OP exp .  [$, OP]
+    1 exp: exp . OP exp  [$end, OP]
+    1    | exp OP exp .  [$end, OP]

 
     OP  shift, and go to state 4
 
 
     OP  shift, and go to state 4
 


@@ -247,13 +243,13 @@ AT_DATA([input.y],
 exp: exp OP exp | NUM;
 ]])
 
 exp: exp OP exp | NUM;
 ]])
 

-AT_CHECK([bison input.y -o input.c --report=all])
+AT_CHECK([bison -o input.c --report=all input.y])

 
 # Check the contents of the report.
 AT_CHECK([cat input.output], [],
 [[Grammar
 
 
 # Check the contents of the report.
 AT_CHECK([cat input.output], [],
 [[Grammar
 

-    0 $axiom: exp $
+    0 $accept: exp $end

 
     1 exp: exp OP exp
     2    | NUM
 
     1 exp: exp OP exp
     2    | NUM


@@ -261,7 +257,7 @@ AT_CHECK([cat input.output], [],
 
 Terminals, with rules where they appear
 
 
 Terminals, with rules where they appear
 

-$ (0) 0
+$end (0) 0

 error (256)
 NUM (258) 2
 OP (259) 1
 error (256)
 NUM (258) 2
 OP (259) 1


@@ -269,7 +265,7 @@ OP (259) 1
 
 Nonterminals, with rules where they appear
 
 
 Nonterminals, with rules where they appear
 

-$axiom (5)
+$accept (5)

     on left: 0
 exp (6)
     on left: 1 2, on right: 0 1
     on left: 0
 exp (6)
     on left: 1 2, on right: 0 1


@@ -277,7 +273,7 @@ exp (6)
 
 state 0
 
 
 state 0
 

-    0 $axiom: . exp $
+    0 $accept: . exp $end

     1 exp: . exp OP exp
     2    | . NUM
 
     1 exp: . exp OP exp
     2    | . NUM
 


@@ -295,18 +291,18 @@ state 1
 
 state 2
 
 
 state 2
 

-    0 $axiom: exp . $
+    0 $accept: exp . $end

     1 exp: exp . OP exp
 
     1 exp: exp . OP exp
 

-    $   shift, and go to state 3
-    OP  shift, and go to state 4
+    $end  shift, and go to state 3
+    OP    shift, and go to state 4

 
 
 state 3
 
 
 
 state 3
 

-    0 $axiom: exp $ .
+    0 $accept: exp $end .

 
 

-    $default   accept
+    $default  accept

 
 
 state 4
 
 
 state 4


@@ -322,11 +318,12 @@ state 4
 
 state 5
 
 
 state 5
 

-    1 exp: exp . OP exp  [$, OP]
-    1    | exp OP exp .  [$, OP]
+    1 exp: exp . OP exp  [$end, OP]
+    1    | exp OP exp .  [$end, OP]

 
     $default  reduce using rule 1 (exp)
 
     $default  reduce using rule 1 (exp)

-    Conflict between rule 2 and token OP resolved as shift (%left OP).
+
+    Conflict between rule 1 and token OP resolved as reduce (%left OP).

 ]])
 
 AT_CLEANUP
 ]])
 
 AT_CLEANUP


@@ -339,19 +336,19 @@ AT_CLEANUP
 # When there are RR conflicts, some rules are disabled.  Usually it is
 # simply displayed as:
 #
 # When there are RR conflicts, some rules are disabled.  Usually it is
 # simply displayed as:
 #

-#    $           reduce using rule 3 (num)
-#    $           [reduce using rule 4 (id)]
+#    $end           reduce using rule 3 (num)
+#    $end           [reduce using rule 4 (id)]

 #
 # But when `reduce 3' is the default action, we'd produce:
 #
 #
 # But when `reduce 3' is the default action, we'd produce:
 #

-#    $           [reduce using rule 4 (id)]
+#    $end           [reduce using rule 4 (id)]

 #    $default    reduce using rule 3 (num)
 #
 # In this precise case (a reduction is masked by the default
 # reduction), we make the `reduce 3' explicit:
 #
 #    $default    reduce using rule 3 (num)
 #
 # In this precise case (a reduction is masked by the default
 # reduction), we make the `reduce 3' explicit:
 #

-#    $           reduce using rule 3 (num)
-#    $           [reduce using rule 4 (id)]
+#    $end           reduce using rule 3 (num)
+#    $end           [reduce using rule 4 (id)]

 #    $default    reduce using rule 3 (num)
 #
 # Maybe that's not the best display, but then, please propose something
 #    $default    reduce using rule 3 (num)
 #
 # Maybe that's not the best display, but then, please propose something


@@ -368,18 +365,24 @@ id : '0';
 %%
 ]])
 
 %%
 ]])
 

-AT_CHECK([bison input.y -o input.c --report=all], 1, [],
-[input.y contains 1 reduce/reduce conflict.
-])
+AT_CHECK([bison -o input.c --report=all input.y], 0, [],
+[[input.y: conflicts: 1 reduce/reduce
+input.y:4.6-8: warning: rule never reduced because of conflicts: id: '0'
+]])

 
 # Check the contents of the report.
 AT_CHECK([cat input.output], [],
 
 # Check the contents of the report.
 AT_CHECK([cat input.output], [],

-[[State 1 contains 1 reduce/reduce conflict.
+[[Rules never reduced
+
+    4 id: '0'
+
+
+State 1 conflicts: 1 reduce/reduce

 
 
 Grammar
 
 
 
 Grammar
 

-    0 $axiom: exp $
+    0 $accept: exp $end

 
     1 exp: num
     2    | id
 
     1 exp: num
     2    | id


@@ -391,14 +394,14 @@ Grammar
 
 Terminals, with rules where they appear
 
 
 Terminals, with rules where they appear
 

-$ (0) 0
+$end (0) 0

 '0' (48) 3 4
 error (256)
 
 
 Nonterminals, with rules where they appear
 
 '0' (48) 3 4
 error (256)
 
 
 Nonterminals, with rules where they appear
 

-$axiom (4)
+$accept (4)

     on left: 0
 exp (5)
     on left: 1 2, on right: 0
     on left: 0
 exp (5)
     on left: 1 2, on right: 0


@@ -410,7 +413,7 @@ id (7)
 
 state 0
 
 
 state 0
 

-    0 $axiom: . exp $
+    0 $accept: . exp $end

     1 exp: . num
     2    | . id
     3 num: . '0'
     1 exp: . num
     2    | . id
     3 num: . '0'


@@ -425,19 +428,19 @@ state 0
 
 state 1
 
 
 state 1
 

-    3 num: '0' .  [$]
-    4 id: '0' .  [$]
+    3 num: '0' .  [$end]
+    4 id: '0' .  [$end]

 
 

-    $         reduce using rule 3 (num)
-    $         [reduce using rule 4 (id)]
+    $end      reduce using rule 3 (num)
+    $end      [reduce using rule 4 (id)]

     $default  reduce using rule 3 (num)
 
 
 state 2
 
     $default  reduce using rule 3 (num)
 
 
 state 2
 

-    0 $axiom: exp . $
+    0 $accept: exp . $end

 
 

-    $  shift, and go to state 5
+    $end  shift, and go to state 5

 
 
 state 3
 
 
 state 3


@@ -456,9 +459,9 @@ state 4
 
 state 5
 
 
 state 5
 

-    0 $axiom: exp $ .
+    0 $accept: exp $end .

 
 

-    $default   accept
+    $default  accept

 ]])
 
 AT_CLEANUP
 ]])
 
 AT_CLEANUP


@@ -479,9 +482,9 @@ AT_DATA([input.y],
 exp: exp OP exp | NUM;
 ]])
 
 exp: exp OP exp | NUM;
 ]])
 

-AT_CHECK([bison input.y -o input.c], 1, [],
-[input.y contains 1 shift/reduce conflict.
-expected 0 shift/reduce conflicts
+AT_CHECK([bison -o input.c input.y], 0, [],
+[input.y: conflicts: 1 shift/reduce
+input.y: warning: expected 0 shift/reduce conflicts

 ])
 AT_CLEANUP
 
 ])
 AT_CLEANUP
 


@@ -499,7 +502,7 @@ AT_DATA([input.y],
 exp: exp OP exp | NUM;
 ]])
 
 exp: exp OP exp | NUM;
 ]])
 

-AT_CHECK([bison input.y -o input.c])
+AT_CHECK([bison -o input.c input.y])

 AT_CLEANUP
 
 
 AT_CLEANUP
 
 


@@ -516,8 +519,102 @@ AT_DATA([input.y],
 exp: exp OP exp | NUM;
 ]])
 
 exp: exp OP exp | NUM;
 ]])
 

-AT_CHECK([bison input.y -o input.c], 1, [],
-[input.y contains 1 shift/reduce conflict.
-expected 2 shift/reduce conflicts
+AT_CHECK([bison -o input.c input.y], 0, [],
+[input.y: conflicts: 1 shift/reduce
+input.y: warning: expected 2 shift/reduce conflicts

 ])
 AT_CLEANUP
 ])
 AT_CLEANUP

+
+
+## ------------------------------ ##
+## %expect with reduce conflicts  ##
+## ------------------------------ ##
+
+AT_SETUP([%expect with reduce conflicts])
+
+AT_DATA([input.y],
+[[%expect 0
+%%
+program: a 'a' | a a;
+a: 'a';
+]])
+
+AT_CHECK([bison -o input.c input.y], 0, [],
+[input.y: conflicts: 1 reduce/reduce
+input.y: warning: expected 0 reduce/reduce conflicts
+])
+AT_CLEANUP
+
+
+## ------------------------------- ##
+## %no-default-prec without %prec  ##
+## ------------------------------- ##
+
+AT_SETUP([%no-default-prec without %prec])
+
+AT_DATA([[input.y]],
+[[%left '+'
+%left '*'
+
+%%
+
+%no-default-prec;
+
+e:   e '+' e
+   | e '*' e
+   | '0'
+   ;
+]])
+
+AT_CHECK([bison -o input.c input.y], 0, [],
+[[input.y: conflicts: 4 shift/reduce
+]])
+AT_CLEANUP
+
+
+## ---------------------------- ##
+## %no-default-prec with %prec  ##
+## ---------------------------- ##
+
+AT_SETUP([%no-default-prec with %prec])
+
+AT_DATA([[input.y]],
+[[%left '+'
+%left '*'
+
+%%
+
+%no-default-prec;
+
+e:   e '+' e %prec '+'
+   | e '*' e %prec '*'
+   | '0'
+   ;
+]])
+
+AT_CHECK([bison -o input.c input.y])
+AT_CLEANUP
+
+
+## ---------------- ##
+## %default-prec    ##
+## ---------------- ##
+
+AT_SETUP([%default-prec])
+
+AT_DATA([[input.y]],
+[[%left '+'
+%left '*'
+
+%%
+
+%default-prec;
+
+e:   e '+' e
+   | e '*' e
+   | '0'
+   ;
+]])
+
+AT_CHECK([bison -o input.c input.y])
+AT_CLEANUP