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Fix test failure reported by Tom Lane in

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<http://lists.gnu.org/archive/html/bug-bison/2006-10/msg00000.html>
and try to make such failures easier to catch in the future.
* data/glr.c (YYTRANSLATE): Don't check for nonpositive arg;
that's now the caller's responsibility.
(yyprocessOneStack, yyrecoverSyntaxError, yyparse):
Set yychar = YYEOF if it's negative.
* tests/actions.at (yylex): Abort if asked to read past EOF.
* tests/conflicts.at (yylex): Likewise.
* tests/cxx-type.at (yylex): Likewise.
* tests/glr-regression.at (yylex): Likewise.
* tests/input.at (yylex): Likewise.
* tests/regression.at (yylex): Likewise.
* tests/torture.at (yylex): Likewise.
This commit is contained in:
Paul Eggert
2006-10-06 06:57:00 +00:00
parent 0e2f006a23
commit cf8067530b
9 changed files with 203 additions and 72 deletions
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19
tests/regression.at
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@@ -434,6 +434,7 @@ AT_SETUP([Token definitions])
# Bison managed, when fed with `%token 'f' "f"' to #define 'f'!
AT_DATA_GRAMMAR([input.y],
[%{
#include <stdlib.h>
#include <stdio.h>
void yyerror (const char *s);
int yylex (void);
@@ -457,6 +458,9 @@ yyerror (char const *s)
int
yylex (void)
{
static int called;
if (called++)
abort ();
return SPECIAL;
}
@@ -822,7 +826,8 @@ m4_define([_AT_DATA_DANCER_Y],
[%{
static int yylex (AT_LALR1_CC_IF([int *], [void]));
AT_LALR1_CC_IF([],
[#include <stdio.h>
[#include <stdlib.h>
#include <stdio.h>
static void yyerror (const char *);])
%}
$1
@@ -896,12 +901,14 @@ yyerror (const char *s)
static int
yylex (AT_LALR1_CC_IF([int *lval], [void]))
[{
static int toknum = 0;
static int tokens[] =
static int const tokens[] =
{
':', -1
};
static size_t toknum;
]AT_LALR1_CC_IF([*lval = 0; /* Pacify GCC. */])[
if (! (toknum < sizeof tokens / sizeof *tokens))
abort ();
return tokens[toknum++];
}]
@@ -993,12 +1000,14 @@ yyerror (const char *s)
static int
yylex (AT_LALR1_CC_IF([int *lval], [void]))
[{
static int toknum = 0;
static int tokens[] =
static int const tokens[] =
{
1000, '+', '+', -1
};
static size_t toknum;
]AT_LALR1_CC_IF([*lval = 0; /* Pacify GCC. */])[
if (! (toknum < sizeof tokens / sizeof *tokens))
abort ();
return tokens[toknum++];
}]