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", $$, @$.first_line); } thing
+%destructor { printf ("Freeing 'x' %d from %d\n", $$, @$.first_line); } 'x'
%{
static int yylex (void);
{
yylval.ival = counter;
printf ("sending: '%c'(%d)\n", input[counter], counter);
+ /* As in BASIC, line numbers go from 10 to 10. */
+ yylloc.first_line = 10 * counter;
return input[counter++];
}
else
static void
yyerror (const char *msg)
{
- fprintf (stdout, "%s\n", msg);
+ fprintf (stdout, "%d: %s\n", yylloc.first_line, msg);
}
static void
}
]])
-AT_CHECK([bison input.y -d -v -o input.c])
+AT_CHECK([bison input.y --location -d -v -o input.c])
AT_CHECK([$CC $CFLAGS $CPPFLAGS input.c -o input], 0, [], [ignore])
AT_CHECK([./input], 1,
[[sending: 'x'(0)
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)
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.
]])