warnings: raise warning for useless printers or destructors

[bison.git] / tests / actions.at

diff --git a/tests/actions.at b/tests/actions.at
index b49d94320ce90f0d98c5404fd6b32fd557afd0f7..4af561536aa5cd26c9e0c4d827b620f1c0f2e1f2 100644 (file)
--- a/tests/actions.at
+++ b/tests/actions.at
@@ -28,14 +28,13 @@ AT_SETUP([Mid-rule actions])
 # instead of being attached to the empty rule dedicated to this
 # action.
 
 # instead of being attached to the empty rule dedicated to this
 # action.
 

+AT_BISON_OPTION_PUSHDEFS

 AT_DATA_GRAMMAR([[input.y]],
 [[%define parse.error verbose
 %debug
 %{
 AT_DATA_GRAMMAR([[input.y]],
 [[%define parse.error verbose
 %debug
 %{

-# include <stdio.h>
-# include <stdlib.h>
-  static void yyerror (const char *msg);
-  static int yylex (void);
+]AT_YYERROR_DECLARE[
+]AT_YYLEX_DECLARE[

 %}
 %%
 exp:     { putchar ('0'); }
 %}
 %%
 exp:     { putchar ('0'); }


@@ -51,28 +50,15 @@ exp:     { putchar ('0'); }
          { putchar ('\n'); }
    ;
 %%
          { 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 ();
 }
 ]])
 int
 main (void)
 {
   return yyparse ();
 }
 ]])

+AT_BISON_OPTION_POPDEFS

 
 AT_BISON_CHECK([-d -v -o input.c input.y])
 AT_COMPILE([input])
 
 AT_BISON_CHECK([-d -v -o input.c input.y])
 AT_COMPILE([input])


@@ -92,14 +78,13 @@ AT_CLEANUP
 
 AT_SETUP([Exotic Dollars])
 
 
 AT_SETUP([Exotic Dollars])
 

+AT_BISON_OPTION_PUSHDEFS

 AT_DATA_GRAMMAR([[input.y]],
 [[%define parse.error verbose
 %debug
 %{
 AT_DATA_GRAMMAR([[input.y]],
 [[%define parse.error verbose
 %debug
 %{

-# include <stdio.h>
-# include <stdlib.h>
-  static void yyerror (const char *msg);
-  static int yylex (void);
+]AT_YYERROR_DECLARE[
+]AT_YYLEX_DECLARE[

 # define USE(Var)
 %}
 
 # define USE(Var)
 %}
 


@@ -130,21 +115,8 @@ sum_of_the_five_previous_values:
 ;
 
 %%
 ;
 
 %%

-static int
-yylex (void)
-{
-  static int called;
-  if (called++)
-    abort ();
-  return EOF;
-}
-
-static void
-yyerror (const char *msg)
-{
-  fprintf (stderr, "%s\n", msg);
-}
-
+]AT_YYERROR_DEFINE[
+]AT_YYLEX_DEFINE([])[

 int
 main (void)
 {
 int
 main (void)
 {


@@ -165,8 +137,8 @@ AT_DATA_GRAMMAR([[input.y]],
 [[
 %{
 # include <stdio.h>
 [[
 %{
 # include <stdio.h>

-  static int yylex (void);
-  static void yyerror (char const *msg);
+]AT_YYERROR_DECLARE[
+]AT_YYLEX_DECLARE[

   typedef struct { int val; } stype;
 # define YYSTYPE stype
 %}
   typedef struct { int val; } stype;
 # define YYSTYPE stype
 %}


@@ -178,19 +150,8 @@ two: { $$.val = 2; } ;
 sum: { printf ("%d\n", $0.val + $-1.val + $-2.val); } ;
 
 %%
 sum: { printf ("%d\n", $0.val + $-1.val + $-2.val); } ;
 
 %%

-
-static int
-yylex (void)
-{
-  return 0;
-}
-
-static void
-yyerror (char const *msg)
-{
-  fprintf (stderr, "%s\n", msg);
-}
-
+]AT_YYERROR_DEFINE[
+]AT_YYLEX_DEFINE()[

 int
 main (void)
 {
 int
 main (void)
 {


@@ -204,6 +165,7 @@ AT_PARSER_CHECK([[./input]], [[0]],
 [[6
 ]])
 
 [[6
 ]])
 

+AT_BISON_OPTION_POPDEFS

 AT_CLEANUP
 
 
 AT_CLEANUP
 
 


@@ -243,9 +205,9 @@ m4_ifval([$6], [%union
 }])
 AT_LALR1_CC_IF([%define global_tokens_and_yystype])
 m4_ifval([$6], [[%code provides {]], [[%code {]])
 }])
 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([typedef yy::location YYLTYPE;])[
+]AT_YYLEX_DECLARE[
+]AT_LALR1_CC_IF([], [AT_YYERROR_DECLARE])

 [}
 
 ]m4_ifval([$6], [%type <ival> '(' 'x' 'y' ')' ';' thing line input END])[
 [}
 
 ]m4_ifval([$6], [%type <ival> '(' 'x' 'y' ')' ';' thing line input END])[


@@ -345,10 +307,10 @@ thing:
 ;
 %%
 /* Alias to ARGV[1]. */
 ;
 %%
 /* Alias to ARGV[1]. */

-const char *source = 0;
+const char *source = YY_NULL;

 
 

-static int
-yylex (]AT_LEX_FORMALS[)
+static
+]AT_YYLEX_PROTOTYPE[

 {
   static unsigned int counter = 0;
 
 {
   static unsigned int counter = 0;
 


@@ -593,7 +555,8 @@ Parsing FAILED (status 2).
 ]])
 ])
 
 ]])
 ])
 

-])
+AT_BISON_OPTION_POPDEFS
+])# _AT_CHECK_PRINTER_AND_DESTRUCTOR

 
 
 # AT_CHECK_PRINTER_AND_DESTRUCTOR([BISON-OPTIONS], [UNION-FLAG], [SKIP_FLAG])
 
 
 # AT_CHECK_PRINTER_AND_DESTRUCTOR([BISON-OPTIONS], [UNION-FLAG], [SKIP_FLAG])


@@ -632,7 +595,7 @@ AT_CHECK_PRINTER_AND_DESTRUCTOR([%glr-parser], [with union])
 # called for $end, and that $$ and @$ work correctly.
 
 AT_SETUP([Default tagless %printer and %destructor])
 # 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]],
 [[%define parse.error verbose
 %debug
 AT_DATA_GRAMMAR([[input.y]],
 [[%define parse.error verbose
 %debug


@@ -645,8 +608,8 @@ AT_DATA_GRAMMAR([[input.y]],
 %{
 # include <stdio.h>
 # include <stdlib.h>
 %{
 # include <stdio.h>
 # include <stdlib.h>

-  static void yyerror (const char *msg);
-  static int yylex (void);
+]AT_YYLEX_DECLARE[
+]AT_YYERROR_DECLARE[

 # define USE(SYM)
 %}
 
 # define USE(SYM)
 %}
 


@@ -677,25 +640,8 @@ AT_DATA_GRAMMAR([[input.y]],
 start: 'a' 'b' 'c' 'd' 'e' { $$ = 'S'; USE(($1, $2, $3, $4, $5)); } ;
 
 %%
 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)
 
 int
 main (void)


@@ -728,7 +674,7 @@ 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.
 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)
 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)


@@ -741,6 +687,7 @@ Cleanup: discarding lookahead token $end (1.5-1.5: )
 Stack now 0
 ]])
 
 Stack now 0
 ]])
 

+AT_BISON_OPTION_POPDEFS

 AT_CLEANUP
 
 
 AT_CLEANUP
 
 


@@ -750,7 +697,7 @@ AT_CLEANUP
 ## ------------------------------------------------------ ##
 
 AT_SETUP([Default tagged and per-type %printer and %destructor])
 ## ------------------------------------------------------ ##
 
 AT_SETUP([Default tagged and per-type %printer and %destructor])

-
+AT_BISON_OPTION_PUSHDEFS

 AT_DATA_GRAMMAR([[input.y]],
 [[%define parse.error verbose
 %debug
 AT_DATA_GRAMMAR([[input.y]],
 [[%define parse.error verbose
 %debug


@@ -758,8 +705,8 @@ AT_DATA_GRAMMAR([[input.y]],
 %{
 # include <stdio.h>
 # include <stdlib.h>
 %{
 # include <stdio.h>
 # include <stdlib.h>

-  static void yyerror (const char *msg);
-  static int yylex (void);
+]AT_YYERROR_DECLARE[
+]AT_YYLEX_DECLARE[

 # define USE(SYM)
 %}
 
 # define USE(SYM)
 %}
 


@@ -805,22 +752,8 @@ 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)
 
 int
 main (void)


@@ -878,6 +811,7 @@ Cleanup: discarding lookahead token $end ()
 Stack now 0
 ]])
 
 Stack now 0
 ]])
 

+AT_BISON_OPTION_POPDEFS

 AT_CLEANUP
 
 
 AT_CLEANUP
 
 


@@ -889,12 +823,13 @@ AT_CLEANUP
 AT_SETUP([Default %printer and %destructor for user-defined end token])
 
 # _AT_CHECK_DEFAULT_PRINTER_AND_DESTRUCTOR_FOR_END_TOKEN(TYPED)
 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], [])])
 
 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]],
 [[%define parse.error verbose
 %debug
 AT_DATA_GRAMMAR([[input]]$1[[.y]],
 [[%define parse.error verbose
 %debug


@@ -907,8 +842,8 @@ AT_DATA_GRAMMAR([[input]]$1[[.y]],
 %{
 # include <stdio.h>
 # include <stdlib.h>
 %{
 # include <stdio.h>
 # include <stdlib.h>

-  static void yyerror (const char *msg);
-  static int yylex (void);
+]AT_YYERROR_DECLARE[
+]AT_YYLEX_DECLARE[

 # define USE(SYM)
 %}
 
 # define USE(SYM)
 %}
 


@@ -950,12 +885,7 @@ yylex (void)
   yylloc.first_column = yylloc.last_column = 1;
   return 0;
 }
   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)
 
 int
 main (void)


@@ -964,6 +894,7 @@ main (void)
   return yyparse ();
 }
 ]])
   return yyparse ();
 }
 ]])

+AT_BISON_OPTION_POPDEFS

 
 AT_BISON_CHECK([-o input$1.c input$1.y])
 AT_COMPILE([input$1])
 
 AT_BISON_CHECK([-o input$1.c input$1.y])
 AT_COMPILE([input$1])


@@ -1010,15 +941,15 @@ 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.
 #       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 <stdio.h>
 # include <stdlib.h>
 AT_DATA_GRAMMAR([[input.y]],
 [[%debug
 
 %{
 # include <stdio.h>
 # include <stdlib.h>

-  static void yyerror (const char *msg);
-  static int yylex (void);
+]AT_YYERROR_DECLARE[
+]AT_YYLEX_DECLARE[

 # define USE(SYM)
 %}
 
 # define USE(SYM)
 %}
 


@@ -1039,24 +970,8 @@ 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)
 {
 int
 main (void)
 {


@@ -1064,6 +979,7 @@ main (void)
   return yyparse ();
 }
 ]])
   return yyparse ();
 }
 ]])

+AT_BISON_OPTION_POPDEFS

 
 AT_BISON_CHECK([-o input.c input.y])
 AT_COMPILE([input])
 
 AT_BISON_CHECK([-o input.c input.y])
 AT_COMPILE([input])


@@ -1125,14 +1041,15 @@ 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.)
 
 #     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 <stdio.h>
 # include <stdlib.h>
 AT_DATA_GRAMMAR([[input.y]],
 [[%debug /* So that %printer is actually compiled.  */
 
 %{
 # include <stdio.h>
 # include <stdlib.h>

-  static void yyerror (const char *msg);
-  static int yylex (void);
+]AT_YYERROR_DECLARE[
+]AT_YYLEX_DECLARE[

 # define USE(SYM)
 %}
 
 # define USE(SYM)
 %}
 


@@ -1153,28 +1070,15 @@ AT_DATA_GRAMMAR([[input.y]],
 start: { USE($$); } ;
 
 %%
 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 ();
 }
 ]])
 int
 main (void)
 {
   return yyparse ();
 }
 ]])

+AT_BISON_OPTION_POPDEFS

 
 AT_BISON_CHECK([-o input.c input.y])
 AT_COMPILE([input])
 
 AT_BISON_CHECK([-o input.c input.y])
 AT_COMPILE([input])


@@ -1189,14 +1093,15 @@ AT_CLEANUP
 
 AT_SETUP([Default %printer and %destructor for mid-rule values])
 
 
 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 <stdio.h>
 # include <stdlib.h>
 AT_DATA_GRAMMAR([[input.y]],
 [[%debug /* So that %printer is actually compiled.  */
 
 %{
 # include <stdio.h>
 # include <stdlib.h>

-  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) (void)(Rhs)
 # define USE(SYM)
 # define YYLTYPE int
 # define YYLLOC_DEFAULT(Current, Rhs, N) (void)(Rhs)


@@ -1220,22 +1125,8 @@ 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)
 {
 int
 main (void)
 {


@@ -1243,6 +1134,7 @@ main (void)
   return yyparse ();
 }
 ]])
   return yyparse ();
 }
 ]])

+AT_BISON_OPTION_POPDEFS

 
 AT_BISON_CHECK([-o input.c input.y], 0,,
 [[input.y:33.3-23: warning: unset value: $$
 
 AT_BISON_CHECK([-o input.c input.y], 0,,
 [[input.y:33.3-23: warning: unset value: $$


@@ -1296,15 +1188,15 @@ AT_CLEANUP
 # Bison once forgot to check for @$ in actions other than semantic actions.
 
 # AT_CHECK_ACTION_LOCATIONS(ACTION-DIRECTIVE)
 # 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 ]$1[ implies %locations]])
 m4_define([AT_CHECK_ACTION_LOCATIONS],
 [AT_SETUP([[@$ in ]$1[ implies %locations]])

-
+AT_BISON_OPTION_PUSHDEFS

 AT_DATA_GRAMMAR([[input.y]],
 [[%code {
   #include <stdio.h>
 AT_DATA_GRAMMAR([[input.y]],
 [[%code {
   #include <stdio.h>

-  static int yylex (void);
-  static void yyerror (char const *msg);
+]AT_YYERROR_DECLARE[
+]AT_YYLEX_DECLARE[

 }
 
 %debug
 }
 
 %debug


@@ -1325,12 +1217,7 @@ yylex (void)
   return 0;
 }
 
   return 0;
 }
 

-static void
-yyerror (char const *msg)
-{
-  fprintf (stderr, "%s\n", msg);
-}
-
+]AT_YYERROR_DEFINE[

 int
 main (void)
 {
 int
 main (void)
 {


@@ -1340,7 +1227,7 @@ main (void)
 
 AT_BISON_CHECK([[-o input.c input.y]])
 AT_COMPILE([[input]])
 
 AT_BISON_CHECK([[-o input.c input.y]])
 AT_COMPILE([[input]])

-
+AT_BISON_OPTION_POPDEFS

 AT_CLEANUP])
 
 AT_CHECK_ACTION_LOCATIONS([[%initial-action]])
 AT_CLEANUP])
 
 AT_CHECK_ACTION_LOCATIONS([[%initial-action]])


@@ -1357,7 +1244,7 @@ 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:
 # <http://lists.gnu.org/archive/html/bug-bison/2008-11/msg00001.html>.
 # This feature is undocumented, but we accidentally broke it in 2.3a,
 # and there was a complaint at:
 # <http://lists.gnu.org/archive/html/bug-bison/2008-11/msg00001.html>.

-
+AT_BISON_OPTION_PUSHDEFS

 AT_DATA([input.y],
 [[%%
 start: test2 test1 test0 testc;
 AT_DATA([input.y],
 [[%%
 start: test2 test1 test0 testc;


@@ -1407,6 +1294,7 @@ no_semi
 []"broken\" $ @ $$ @$ [];\
 string;"}
 ]])
 []"broken\" $ @ $$ @$ [];\
 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
 
 AT_BISON_CHECK([[-o input.c input.y]], [0], [],
 [[input.y:8.48: warning: a ';' might be needed at the end of action code


@@ -1462,13 +1350,14 @@ AT_CLEANUP
 
 AT_SETUP([[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 <assert.h>
   #include <stdio.h>
 AT_DATA_GRAMMAR([input.y],
 [[
 %code {
   #include <assert.h>
   #include <stdio.h>

-  static void yyerror (char const *);
-  static int yylex (void);
+]AT_YYERROR_DECLARE[
+]AT_YYLEX_DECLARE[

   #define USE(Var)
 }
 
   #define USE(Var)
 }
 


@@ -1496,27 +1385,15 @@ accept: /*empty*/ {
 } ;
 
 %%
 } ;
 
 %%

-
-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)
 {
   return yyparse ();
 }
 ]])
 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]], [],
 AT_BISON_CHECK([[-o input.c input.y]])
 AT_COMPILE([[input]])
 AT_PARSER_CHECK([[./input]], [[0]], [],


@@ -1532,6 +1409,8 @@ AT_CLEANUP
 
 AT_SETUP([[YYBACKUP]])
 
 
 AT_SETUP([[YYBACKUP]])
 

+AT_BISON_OPTION_PUSHDEFS([%pure-parser])
+

 AT_DATA_GRAMMAR([input.y],
 [[
 %error-verbose
 AT_DATA_GRAMMAR([input.y],
 [[
 %error-verbose


@@ -1542,7 +1421,7 @@ AT_DATA_GRAMMAR([input.y],
 # include <stdlib.h>
 # include <assert.h>
 
 # include <stdlib.h>
 # include <assert.h>
 

-  static void yyerror (const char *msg);
+  ]AT_YYERROR_DECLARE[

   static int yylex (YYSTYPE *yylval);
 }
 %%
   static int yylex (YYSTYPE *yylval);
 }
 %%


@@ -1557,6 +1436,7 @@ exp:
 ;
 
 %%
 ;
 
 %%

+]AT_YYERROR_DEFINE[

 static int
 yylex (YYSTYPE *yylval)
 {
 static int
 yylex (YYSTYPE *yylval)
 {


@@ -1567,12 +1447,6 @@ yylex (YYSTYPE *yylval)
   return input[toknum++];
 }
 
   return input[toknum++];
 }
 

-static void
-yyerror (const char *msg)
-{
-  fprintf (stderr, "%s\n", msg);
-}
-

 int
 main (void)
 {
 int
 main (void)
 {


@@ -1580,6 +1454,7 @@ main (void)
   return yyparse ();
 }
 ]])
   return yyparse ();
 }
 ]])

+AT_BISON_OPTION_POPDEFS

 
 AT_BISON_CHECK([[-o input.c input.y]])
 AT_COMPILE([[input]])
 
 AT_BISON_CHECK([[-o input.c input.y]])
 AT_COMPILE([[input]])