regen

[bison.git] / tests / regression.at

diff --git a/tests/regression.at b/tests/regression.at
index 769142008eda10acee2b8a347434a2312f9f9bc8..f101f2180f9205fb62a687d69536042fb65c72dd 100644 (file)
--- a/tests/regression.at
+++ b/tests/regression.at
@@ -1,6 +1,6 @@
 # Bison Regressions.                               -*- Autotest -*-
 
 # Bison Regressions.                               -*- Autotest -*-
 

-# Copyright (C) 2001-2012 Free Software Foundation, Inc.
+# Copyright (C) 2001-2013 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


@@ -130,7 +130,6 @@ AT_SETUP([Early token definitions without --yacc])
 AT_BISON_OPTION_PUSHDEFS
 AT_DATA_GRAMMAR([input.y],
 [[%{
 AT_BISON_OPTION_PUSHDEFS
 AT_DATA_GRAMMAR([input.y],
 [[%{

-#include <stdio.h>

 ]AT_YYERROR_DECLARE_EXTERN[
 ]AT_YYLEX_DECLARE_EXTERN[
 void print_my_token (void);
 ]AT_YYERROR_DECLARE_EXTERN[
 ]AT_YYLEX_DECLARE_EXTERN[
 void print_my_token (void);


@@ -141,6 +140,7 @@ void print_my_token (void);
   int val;
 };
 %{
   int val;
 };
 %{

+#include <stdio.h>

 void
 print_my_token (void)
 {
 void
 print_my_token (void)
 {


@@ -263,11 +263,11 @@ AT_CHECK([cat input.output], [],
 
     0 $accept: expr $end
 
 
     0 $accept: expr $end
 

-    1 $@1: /* empty */
+    1 $@1: %empty

 
     2 expr: 'a' $@1 'b'
 
 
     2 expr: 'a' $@1 'b'
 

-    3 $@2: /* empty */
+    3 $@2: %empty

 
     4 expr: $@2 'c'
 
 
     4 expr: $@2 'c'
 


@@ -373,11 +373,14 @@ AT_DATA([input.y],
 %token  <operator>  LE 134  "<="
 %left  OR  "<="
 %%
 %token  <operator>  LE 134  "<="
 %left  OR  "<="
 %%

-exp: ;
+exp: %empty;

 %%
 ]])
 
 %%
 ]])
 

-AT_BISON_CHECK([-v -o input.c input.y])
+AT_BISON_CHECK([-v -Wall -o input.c input.y], 0, [],
+[[input.y:1.29-32: warning: useless precedence and associativity for "||" [-Wprecedence]
+input.y:2.29-32: warning: useless precedence and associativity for "<=" [-Wprecedence]
+]])

 
 AT_CLEANUP
 
 
 AT_CLEANUP
 


@@ -446,8 +449,6 @@ AT_BISON_OPTION_PUSHDEFS
 # Bison managed, when fed with '%token 'f' "f"' to #define 'f'!
 AT_DATA_GRAMMAR([input.y],
 [%{
 # Bison managed, when fed with '%token 'f' "f"' to #define 'f'!
 AT_DATA_GRAMMAR([input.y],
 [%{

-#include <stdlib.h>
-#include <stdio.h>

 ]AT_YYERROR_DECLARE[
 ]AT_YYLEX_DECLARE[
 %}
 ]AT_YYERROR_DECLARE[
 ]AT_YYLEX_DECLARE[
 %}


@@ -464,12 +465,7 @@ exp: "a" "\\\'\?\"\a\b\f\n\r\t\v\001\201\x001\x000081??!";
 %%
 ]AT_YYERROR_DEFINE[
 ]AT_YYLEX_DEFINE([{ SPECIAL }])[
 %%
 ]AT_YYERROR_DEFINE[
 ]AT_YYLEX_DEFINE([{ SPECIAL }])[

-
-int
-main (void)
-{
-  return yyparse ();
-}
+]AT_MAIN_DEFINE[

 ]])
 AT_BISON_OPTION_POPDEFS
 
 ]])
 AT_BISON_OPTION_POPDEFS
 


@@ -481,6 +477,14 @@ AT_BISON_CHECK([-o input.c input.y], [[0]], [[]],
 [[input.y:22.8-14: warning: symbol SPECIAL redeclared [-Wother]
 input.y:22.8-63: warning: symbol "\\'?\"\a\b\f\n\r\t\v\001\201\001\201??!" used more than once as a literal string [-Wother]
 ]])
 [[input.y:22.8-14: warning: symbol SPECIAL redeclared [-Wother]
 input.y:22.8-63: warning: symbol "\\'?\"\a\b\f\n\r\t\v\001\201\001\201??!" used more than once as a literal string [-Wother]
 ]])

+AT_BISON_CHECK([-fcaret -o input.c input.y], [[0]], [[]],
+[[input.y:22.8-14: warning: symbol SPECIAL redeclared [-Wother]
+ %token SPECIAL "\\\'\?\"\a\b\f\n\r\t\v\001\201\x001\x000081??!"
+        ^^^^^^^
+input.y:22.8-63: warning: symbol "\\'?\"\a\b\f\n\r\t\v\001\201\001\201??!" used more than once as a literal string [-Wother]
+ %token SPECIAL "\\\'\?\"\a\b\f\n\r\t\v\001\201\x001\x000081??!"
+        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+]])

 AT_COMPILE([input])
 
 # Checking the error message here guarantees that yytname, which does contain
 AT_COMPILE([input])
 
 # Checking the error message here guarantees that yytname, which does contain


@@ -569,7 +573,7 @@ AT_CHECK([cat input.output], 0,
     2 CONST_DEC_LIST: CONST_DEC
     3               | CONST_DEC_LIST CONST_DEC
 
     2 CONST_DEC_LIST: CONST_DEC
     3               | CONST_DEC_LIST CONST_DEC
 

-    4 $@1: /* empty */
+    4 $@1: %empty

 
     5 CONST_DEC: $@1 undef_id_tok '=' const_id_tok ';'
 
 
     5 CONST_DEC: $@1 undef_id_tok '=' const_id_tok ';'
 


@@ -717,7 +721,7 @@ AT_KEYWORDS([report])
 AT_DATA([input.y],
 [[%%
 statement:  struct_stat;
 AT_DATA([input.y],
 [[%%
 statement:  struct_stat;

-struct_stat:  /* empty. */ | if else;
+struct_stat:  %empty | if else;

 if: "if" "const" "then" statement;
 else: "else" statement;
 %%
 if: "if" "const" "then" statement;
 else: "else" statement;
 %%


@@ -836,7 +840,6 @@ m4_define([_AT_DATA_DANCER_Y],
 }
 $1
 %token ARROW INVALID NUMBER STRING DATA
 }
 $1
 %token ARROW INVALID NUMBER STRING DATA

-%defines

 %verbose
 %error-verbose
 /* Grammar follows */
 %verbose
 %error-verbose
 /* Grammar follows */


@@ -866,7 +869,7 @@ type: DATA
    | INVALID
    ;
 
    | INVALID
    ;
 

-body: /* empty */
+body: %empty

    | body member
    ;
 
    | body member
    ;
 


@@ -880,23 +883,7 @@ member: STRING
 %%
 ]AT_YYERROR_DEFINE[
 ]AT_YYLEX_DEFINE([":"])[
 %%
 ]AT_YYERROR_DEFINE[
 ]AT_YYLEX_DEFINE([":"])[

-]AT_LALR1_CC_IF(
-[int
-yyparse ()
-{
-  yy::parser parser;
-#if YYDEBUG
-  parser.set_debug_level (YYDEBUG);
-#endif
-  return parser.parse ();
-}
-])[
-
-int
-main (void)
-{
-  return yyparse ();
-}
+]AT_MAIN_DEFINE[

 ]])
 ])# _AT_DATA_DANCER_Y
 
 ]])
 ])# _AT_DATA_DANCER_Y
 


@@ -933,18 +920,16 @@ m4_define([_AT_DATA_EXPECT2_Y],
 [%{
 static int yylex (AT_LALR1_CC_IF([int *], [void]));
 AT_LALR1_CC_IF([[#include <cstdlib>]],
 [%{
 static int yylex (AT_LALR1_CC_IF([int *], [void]));
 AT_LALR1_CC_IF([[#include <cstdlib>]],

-[[#include <stdlib.h>
-#include <stdio.h>
+[[

 ]AT_YYERROR_DECLARE])[
 %}
 $1
 ]AT_YYERROR_DECLARE])[
 %}
 $1

-%defines

 %error-verbose
 %token A 1000
 %token B
 
 %%
 %error-verbose
 %token A 1000
 %token B
 
 %%

-program: /* empty */
+program: %empty

  | program e ';'
  | program error ';';
 
  | program e ';'
  | program error ';';
 


@@ -975,12 +960,7 @@ yylex (]AT_LALR1_CC_IF([int *lval], [void])[)
   assert (toknum < sizeof tokens / sizeof *tokens);
   return tokens[toknum++];
 }
   assert (toknum < sizeof tokens / sizeof *tokens);
   return tokens[toknum++];
 }

-
-int
-main (void)
-{
-  return yyparse ();
-}
+]AT_MAIN_DEFINE[

 ]])
 ])# _AT_DATA_EXPECT2_Y
 
 ]])
 ])# _AT_DATA_EXPECT2_Y
 


@@ -1014,16 +994,14 @@ AT_SETUP([Braced code in declaration in rules section])
 
 # Bison once mistook braced code in a declaration in the rules section to be a
 # rule action.
 
 # Bison once mistook braced code in a declaration in the rules section to be a
 # rule action.

-AT_BISON_OPTION_PUSHDEFS
+AT_BISON_OPTION_PUSHDEFS([%debug])

 AT_DATA_GRAMMAR([input.y],
 [[%{
 AT_DATA_GRAMMAR([input.y],
 [[%{

-#include <stdio.h>

 ]AT_YYERROR_DECLARE[
 ]AT_YYLEX_DECLARE[
 %}
 ]AT_YYERROR_DECLARE[
 ]AT_YYLEX_DECLARE[
 %}

-
+%debug

 %error-verbose
 %error-verbose

-

 %%
 
 start:
 %%
 
 start:


@@ -1039,19 +1017,13 @@ start:
 %%
 ]AT_YYERROR_DEFINE[
 ]AT_YYLEX_DEFINE(["a"])[
 %%
 ]AT_YYERROR_DEFINE[
 ]AT_YYLEX_DEFINE(["a"])[

-
-int
-main (void)
-{
-  yydebug = 1;
-  return !yyparse ();
-}
+]AT_MAIN_DEFINE[

 ]])
 AT_BISON_OPTION_POPDEFS
 
 ]])
 AT_BISON_OPTION_POPDEFS
 

-AT_BISON_CHECK([-t -o input.c input.y])
+AT_BISON_CHECK([-o input.c input.y])

 AT_COMPILE([input])
 AT_COMPILE([input])

-AT_PARSER_CHECK([./input], 0,
+AT_PARSER_CHECK([./input --debug], 1,

 [[Bison would once convert this action to a midrule because of the subsequent braced code.
 ]],
 [[Starting parse
 [[Bison would once convert this action to a midrule because of the subsequent braced code.
 ]],
 [[Starting parse


@@ -1090,7 +1062,7 @@ start: 'a' "A" 'b';
 %token 'a' "A";
 ]])
 
 %token 'a' "A";
 ]])
 

-AT_BISON_CHECK([-t -o input.c input.y])
+AT_BISON_CHECK([-o input.c input.y])

 
 AT_CLEANUP
 
 
 AT_CLEANUP
 


@@ -1147,11 +1119,10 @@ AT_SETUP([[Token number in precedence declaration]])
 # we lost this in Bison 1.50.
 AT_BISON_OPTION_PUSHDEFS
 AT_DATA_GRAMMAR([input.y],
 # we lost this in Bison 1.50.
 AT_BISON_OPTION_PUSHDEFS
 AT_DATA_GRAMMAR([input.y],

-[[%{
-  #include <stdio.h>
+[[%code {

   ]AT_YYERROR_DECLARE[
   ]AT_YYLEX_DECLARE[
   ]AT_YYERROR_DECLARE[
   ]AT_YYLEX_DECLARE[

-%}
+}

 
 %error-verbose
 %right END 0
 
 %error-verbose
 %right END 0


@@ -1172,18 +1143,14 @@ sr_conflict:
 
 ]AT_YYERROR_DEFINE[
 ]AT_YYLEX_DEFINE([{ 1, 2, 3, 0 }])[
 
 ]AT_YYERROR_DEFINE[
 ]AT_YYLEX_DEFINE([{ 1, 2, 3, 0 }])[

-
-int
-main (void)
-{
-  return yyparse ();
-}
+]AT_MAIN_DEFINE[

 ]])
 AT_BISON_OPTION_POPDEFS
 
 ]])
 AT_BISON_OPTION_POPDEFS
 

-AT_BISON_CHECK([[-o input.c input.y]], [[0]],,
-[[input.y:23.5-19: warning: rule useless in parser due to conflicts: start: start [-Wother]
-input.y:27.5-19: warning: rule useless in parser due to conflicts: sr_conflict: TK2 "tok alias" [-Wother]
+AT_BISON_CHECK([[-Wall -o input.c input.y]], [[0]],,
+[[input.y:24.5-19: warning: rule useless in parser due to conflicts [-Wother]
+input.y:28.5-19: warning: rule useless in parser due to conflicts [-Wother]
+input.y:18.7-9: warning: useless precedence and associativity for TK1 [-Wprecedence]

 ]])
 AT_COMPILE([[input]])
 AT_PARSER_CHECK([[./input]])
 ]])
 AT_COMPILE([[input]])
 AT_PARSER_CHECK([[./input]])


@@ -1226,7 +1193,6 @@ AT_SETUP([[parse.error=verbose and YYSTACK_USE_ALLOCA]])
 AT_BISON_OPTION_PUSHDEFS
 AT_DATA_GRAMMAR([input.y],
 [[%code {
 AT_BISON_OPTION_PUSHDEFS
 AT_DATA_GRAMMAR([input.y],
 [[%code {

-  #include <stdio.h>

   ]AT_YYERROR_DECLARE[
   ]AT_YYLEX_DECLARE[
   #define YYSTACK_USE_ALLOCA 1
   ]AT_YYERROR_DECLARE[
   ]AT_YYLEX_DECLARE[
   #define YYSTACK_USE_ALLOCA 1


@@ -1269,11 +1235,7 @@ syntax_error:
      recovery by shifting 3 tokens) in order to detect any loss of the
      reallocated buffer.  */
 ]AT_YYLEX_DEFINE(["abc"])[
      recovery by shifting 3 tokens) in order to detect any loss of the
      reallocated buffer.  */
 ]AT_YYLEX_DEFINE(["abc"])[

-int
-main (void)
-{
-  return yyparse ();
-}
+]AT_MAIN_DEFINE[

 ]])
 AT_BISON_OPTION_POPDEFS
 
 ]])
 AT_BISON_OPTION_POPDEFS
 


@@ -1305,7 +1267,6 @@ AT_SETUP([[parse.error=verbose overflow]])
 AT_BISON_OPTION_PUSHDEFS
 AT_DATA_GRAMMAR([input.y],
 [[%code {
 AT_BISON_OPTION_PUSHDEFS
 AT_DATA_GRAMMAR([input.y],
 [[%code {

-  #include <stdio.h>

   ]AT_YYERROR_DECLARE[
   ]AT_YYLEX_DECLARE[
 
   ]AT_YYERROR_DECLARE[
   ]AT_YYLEX_DECLARE[
 


@@ -1415,15 +1376,14 @@ AT_SETUP([[LAC: Exploratory stack]])
 
 m4_pushdef([AT_LAC_CHECK], [
 
 
 m4_pushdef([AT_LAC_CHECK], [
 

-AT_BISON_OPTION_PUSHDEFS([$1])
+AT_BISON_OPTION_PUSHDEFS([%debug $1])

 
 AT_DATA_GRAMMAR([input.y],
 [[%code {
 
 AT_DATA_GRAMMAR([input.y],
 [[%code {

-  #include <stdio.h>

   ]AT_YYERROR_DECLARE[
   int yylex (]AT_PURE_IF([[YYSTYPE *]], [[void]])[);
 }
   ]AT_YYERROR_DECLARE[
   int yylex (]AT_PURE_IF([[YYSTYPE *]], [[void]])[);
 }

-
+%debug

 ]$1[
 %define parse.error verbose
 %token 'c'
 ]$1[
 %define parse.error verbose
 %token 'c'


@@ -1450,21 +1410,16 @@ yylex (]AT_PURE_IF([[YYSTYPE *v]], [[void]])[)
   return *input++;
 }
 
   return *input++;
 }
 

-int
-main (void)
-{
-  yydebug = 1;
-  return yyparse ();
-}
+]AT_MAIN_DEFINE[

 ]])
 
 AT_BISON_CHECK([[-Dparse.lac=full -Dparse.lac.es-capacity-initial=1 \
                  -Dparse.lac.memory-trace=full \
 ]])
 
 AT_BISON_CHECK([[-Dparse.lac=full -Dparse.lac.es-capacity-initial=1 \
                  -Dparse.lac.memory-trace=full \

-                 -t -o input.c input.y]], [[0]], [],
+                 -o input.c input.y]], [[0]], [],

 [[input.y: warning: 21 shift/reduce conflicts [-Wconflicts-sr]
 ]])
 AT_COMPILE([[input]])
 [[input.y: warning: 21 shift/reduce conflicts [-Wconflicts-sr]
 ]])
 AT_COMPILE([[input]])

-AT_PARSER_CHECK([[./input > stdout.txt 2> stderr.txt]], [[1]])
+AT_PARSER_CHECK([[./input --debug > stdout.txt 2> stderr.txt]], [[1]])

 
 # Make sure syntax error doesn't forget that 'a' is expected.  It would
 # be forgotten without lookahead correction.
 
 # Make sure syntax error doesn't forget that 'a' is expected.  It would
 # be forgotten without lookahead correction.


@@ -1508,15 +1463,14 @@ AT_CLEANUP
 AT_SETUP([[LAC: Memory exhaustion]])
 
 m4_pushdef([AT_LAC_CHECK],
 AT_SETUP([[LAC: Memory exhaustion]])
 
 m4_pushdef([AT_LAC_CHECK],

-[AT_BISON_OPTION_PUSHDEFS
+[AT_BISON_OPTION_PUSHDEFS([%debug])

 AT_DATA_GRAMMAR([input.y],
 [[%code {
 AT_DATA_GRAMMAR([input.y],
 [[%code {

-  #include <stdio.h>

   ]AT_YYERROR_DECLARE[
   ]AT_YYLEX_DECLARE[
   #define YYMAXDEPTH 8
 }
   ]AT_YYERROR_DECLARE[
   ]AT_YYLEX_DECLARE[
   #define YYMAXDEPTH 8
 }

-
+%debug

 %error-verbose
 
 %%
 %error-verbose
 
 %%


@@ -1527,16 +1481,11 @@ A: /*empty*/ | 'a' ;
 %%
 ]AT_YYERROR_DEFINE[
 ]AT_YYLEX_DEFINE(["$1"])[
 %%
 ]AT_YYERROR_DEFINE[
 ]AT_YYLEX_DEFINE(["$1"])[

-int
-main (void)
-{
-  yydebug = 1;
-  return yyparse ();
-}
+]AT_MAIN_DEFINE[

 ]])
 
 AT_BISON_CHECK([[-Dparse.lac=full -Dparse.lac.es-capacity-initial=1 \
 ]])
 
 AT_BISON_CHECK([[-Dparse.lac=full -Dparse.lac.es-capacity-initial=1 \

-                 -t -o input.c input.y]], [[0]], [],
+                 -o input.c input.y]], [[0]], [],

 [[input.y: warning: 8 shift/reduce conflicts [-Wconflicts-sr]
 ]])
 AT_COMPILE([[input]])
 [[input.y: warning: 8 shift/reduce conflicts [-Wconflicts-sr]
 ]])
 AT_COMPILE([[input]])


@@ -1545,7 +1494,7 @@ AT_BISON_OPTION_POPDEFS
 
 # Check for memory exhaustion during parsing.
 AT_LAC_CHECK([])
 
 # Check for memory exhaustion during parsing.
 AT_LAC_CHECK([])

-AT_PARSER_CHECK([[./input]], [[2]], [],
+AT_PARSER_CHECK([[./input --debug]], [[2]], [],

 [[Starting parse
 Entering state 0
 Reading a token: Now at end of input.
 [[Starting parse
 Entering state 0
 Reading a token: Now at end of input.


@@ -1559,7 +1508,7 @@ Stack now 0
 # Induce an immediate syntax error with an undefined token, and check
 # for memory exhaustion while building syntax error message.
 AT_LAC_CHECK([z], [[0]])
 # Induce an immediate syntax error with an undefined token, and check
 # for memory exhaustion while building syntax error message.
 AT_LAC_CHECK([z], [[0]])

-AT_PARSER_CHECK([[./input]], [[2]], [],
+AT_PARSER_CHECK([[./input --debug]], [[2]], [],

 [[Starting parse
 Entering state 0
 Reading a token: Next token is token $undefined ()
 [[Starting parse
 Entering state 0
 Reading a token: Next token is token $undefined ()


@@ -1590,27 +1539,22 @@ AT_CLEANUP
 m4_pushdef([AT_TEST],
 [AT_SETUP([[Lex and parse params: $1]])
 
 m4_pushdef([AT_TEST],
 [AT_SETUP([[Lex and parse params: $1]])
 

+## FIXME: Improve parsing of parse-param.

 AT_BISON_OPTION_PUSHDEFS([%locations %skeleton "$1" %parse-param { int x } %parse-param { int y }])
 
 AT_BISON_OPTION_PUSHDEFS([%locations %skeleton "$1" %parse-param { int x } %parse-param { int y }])
 

-## FIXME: Improve parsing of parse-param and use the generated
-## yyerror.

 AT_DATA_GRAMMAR([input.y],
 AT_DATA_GRAMMAR([input.y],

-[[%defines
-%locations
+[[%locations

 %skeleton "$1"
 %union { int ival; }
 %parse-param { int x }
 // Spaces, tabs, and new lines.
 %parse-param { @&t@
 %skeleton "$1"
 %union { int ival; }
 %parse-param { int x }
 // Spaces, tabs, and new lines.
 %parse-param { @&t@

-        int y   @&t@
+@tb@ int y@tb@ @&t@

          @&t@
  @&t@
 }
 
 %{
          @&t@
  @&t@
 }
 
 %{

-#include <stdio.h>
-#include <stdlib.h>
-

   ]AT_YYERROR_DECLARE[
   ]AT_YYLEX_DECLARE[
 %}
   ]AT_YYERROR_DECLARE[
   ]AT_YYLEX_DECLARE[
 %}


@@ -1633,7 +1577,7 @@ yyparse (int x, int y)
 int
 main (void)
 {
 int
 main (void)
 {

-  return !!yyparse(1, 2);
+  return yyparse(1, 2);

 }
 ]])
 
 }
 ]])
 


@@ -1652,3 +1596,33 @@ AT_TEST([lalr1.cc])
 AT_TEST([glr.cc])
 
 m4_popdef([AT_TEST])
 AT_TEST([glr.cc])
 
 m4_popdef([AT_TEST])

+
+
+## ----------------------- ##
+## stdio.h is not needed.  ##
+## ----------------------- ##
+
+# At some point, by accident, yy_location_print_ was using fprintf and
+# FILE which are from stdio.h, which we do not require.
+AT_SETUP([[stdio.h is not needed]])
+
+AT_BISON_OPTION_PUSHDEFS
+
+AT_DATA_GRAMMAR([input.y],
+[[%locations
+%code
+{
+  static int yylex (void) { return 0; }
+  static void yyerror (const char* msg) { (void) msg; }
+}
+%%
+exp: {}
+%%
+]AT_MAIN_DEFINE[
+]])
+
+AT_FULL_COMPILE([input])
+
+AT_BISON_OPTION_POPDEFS
+
+AT_CLEANUP