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* tests/actions.at (Destructors): Augment to test locations.

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* data/bison.simple (yydestructor): Pass it the current location
if locations are enabled.
Prototype only when __STDC__ or C++.
Change the argument names to move into the yy name space: there is
user code here.
This commit is contained in:
Akim Demaille
2002-06-19 12:03:22 +00:00
parent 7431029172
commit 93b68a0e09
3 changed files with 43 additions and 25 deletions
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9
ChangeLog
View File

@@ -1,3 +1,12 @@
2002-06-19 Akim Demaille <akim@epita.fr>
* tests/actions.at (Destructors): Augment to test locations.
* data/bison.simple (yydestructor): Pass it the current location
if locations are enabled.
Prototype only when __STDC__ or C++.
Change the argument names to move into the yy name space: there is
user code here.
2002-06-19 Akim Demaille <akim@epita.fr>
* data/bison.simple (b4_pure_if): New.

23
data/bison.simple
View File

@@ -667,7 +667,11 @@ int yyparse (void *);
int yyparse (void);
# endif
#endif
static void yydestructor (int symbol_type, YYSTYPE symbol_value);
#if defined (__STDC__) || defined (__cplusplus)
static void yydestructor (int yytype,
YYSTYPE yyvalue[]b4_location_if([, YYLTYPE yylocation]));
#endif
m4_divert_push([KILL])# ======================== M4 code.
# b4_declare_parser_variables
@@ -1126,7 +1130,7 @@ yyerrlab1:
}
}
#endif
yydestructor (yystos[*yyssp], *yyvsp);
yydestructor (yystos[*yyssp], *yyvsp]b4_location_if([, *yylsp])[);
YYPOPSTACK;
}
YYABORT;
@@ -1134,7 +1138,7 @@ yyerrlab1:
YYDPRINTF ((stderr, "Discarding token %d (%s).\n",
yychar, yytname[yychar1]));
yydestructor (yychar1, yylval);
yydestructor (yychar1, yylval]b4_location_if([, yylloc])[);
yychar = YYEMPTY;
}
@@ -1181,7 +1185,7 @@ yyerrlab1:
}
#endif
yydestructor (yystos[yystate], *yyvsp);
yydestructor (yystos[yystate], *yyvsp]b4_location_if([, *yylsp])[);
yyvsp--;
yystate = *--yyssp;
]b4_location_if([ yylsp--;])[
@@ -1251,24 +1255,27 @@ m4_divert_push([KILL])# M4 code.
# b4_symbol_destructor(SYMBOL-NUMBER, DESTRUCTOR, TYPE-NAME)
# ----------------------------------------------------------
m4_define([b4_symbol_destructor],
[m4_pushdef([b4_dollar_dollar], [symbol_value.$6])dnl
[m4_pushdef([b4_dollar_dollar], [yyvalue.$6])dnl
m4_pushdef([b4_at_dollar], [yylocation])dnl
case $4: /* $3 */
#line $2 "$1"
$5;
#line __oline__ "__ofile__"
break;
m4_popdef([b4_at_dollar])dnl
m4_popdef([b4_dollar_dollar])])
m4_divert_pop([KILL])dnl# End of M4 code.
static void
yydestructor (int symbol_type, YYSTYPE symbol_value)
yydestructor (int yytype,
YYSTYPE yyvalue[]b4_location_if([, YYLTYPE yylocation]))
{
switch (symbol_type)
switch (yytype)
{
m4_map([b4_symbol_destructor], m4_defn([b4_symbol_destructors]))dnl
default:
YYDPRINTF ((stderr, "yydestructor: unknown symbol type: %d (%s)\n",
symbol_type, yytname[[symbol_type]]));
yytype, yytname[[yytype]]));
break;
}
}

36
tests/actions.at
View File

@@ -177,10 +177,10 @@ AT_DATA([[input.y]],
int ival;
}
%type <ival> 'x' thing line input
%destructor { printf ("Freeing input %d\n", $$); } input
%destructor { printf ("Freeing line %d\n", $$); } line
%destructor { printf ("Freeing thing %d\n", $$); } thing
%destructor { printf ("Freeing 'x' %d\n", $$); } 'x'
%destructor { printf ("Freeing input %d from %d\n", $$, @$.first_line); } input
%destructor { printf ("Freeing line %d from %d\n", $$, @$.first_line); } line
%destructor { printf ("Freeing thing %d from %d\n", $$, @$.first_line); } thing
%destructor { printf ("Freeing 'x' %d from %d\n", $$, @$.first_line); } 'x'
%{
static int yylex (void);
@@ -256,6 +256,8 @@ yylex (void)
{
yylval.ival = counter;
printf ("sending: '%c'(%d)\n", input[counter], counter);
/* As in BASIC, line numbers go from 10 to 10. */
yylloc.first_line = 10 * counter;
return input[counter++];
}
else
@@ -268,7 +270,7 @@ yylex (void)
static void
yyerror (const char *msg)
{
fprintf (stdout, "%s\n", msg);
fprintf (stdout, "%d: %s\n", yylloc.first_line, msg);
}
static void
@@ -291,7 +293,7 @@ main (void)
}
]])
AT_CHECK([bison input.y -d -v -o input.c])
AT_CHECK([bison input.y --location -d -v -o input.c])
AT_CHECK([$CC $CFLAGS $CPPFLAGS input.c -o input], 0, [], [ignore])
AT_CHECK([./input], 1,
[[sending: 'x'(0)
@@ -301,15 +303,15 @@ thing(1): 'x'(1)
sending: 'x'(2)
thing(2): 'x'(2)
sending: 'x'(3)
parse error, unexpected 'x', expecting ';'
Freeing thing 2
Freeing thing 1
Freeing thing 0
Freeing 'x' 3
30: parse error, unexpected 'x', expecting ';'
Freeing thing 2 from 20
Freeing thing 1 from 10
Freeing thing 0 from 0
Freeing 'x' 3 from 30
sending: 'x'(4)
Freeing 'x' 4
Freeing 'x' 4 from 40
sending: 'x'(5)
Freeing 'x' 5
Freeing 'x' 5 from 50
sending: ';'(6)
line(-1): error ';'
sending: 'x'(7)
@@ -323,11 +325,11 @@ thing(10): 'x'(10)
sending: ';'(11)
line(10): thing(10) ';'
sending: 'y'(12)
parse error, unexpected $undefined., expecting $ or error or 'x'
120: parse error, unexpected $undefined., expecting $ or error or 'x'
sending: EOF
Freeing line 10
Freeing line 7
Freeing line -1
Freeing line 10 from 100
Freeing line 7 from 70
Freeing line -1 from 50
Parsing FAILED.
]])