}
]])
-AT_CHECK([bison input.y -d -v -o input.c])
-AT_CHECK([$CC $CFLAGS $CPPFLAGS input.c -o input], 0, [], [ignore])
-AT_CHECK([./input], 0,
+AT_CHECK([bison -d -v -o input.c input.y])
+AT_COMPILE([input])
+AT_PARSER_CHECK([./input], 0,
[[0123456789
]])
int val;
};
-%type <val> a_1 a_2 a_4 a_5
+%type <val> a_1 a_2 a_5
sum_of_the_five_previous_values
%%
-exp: a_1 a_2 { $<val>$ = 3; } a_4 a_5 sum_of_the_five_previous_values
+exp: a_1 a_2 { $<val>$ = 3; } { $<val>$ = $<val>3 + 1; } a_5
+ sum_of_the_five_previous_values
{
printf ("%d\n", $6);
}
;
a_1: { $$ = 1; };
a_2: { $$ = 2; };
-a_4: { $$ = 4; };
a_5: { $$ = 5; };
sum_of_the_five_previous_values:
}
]])
-AT_CHECK([bison input.y -d -v -o input.c])
-AT_CHECK([$CC $CFLAGS $CPPFLAGS input.c -o input], 0, [], [ignore])
-AT_CHECK([./input], 0,
+AT_CHECK([bison -d -v -o input.c input.y])
+AT_COMPILE([input])
+AT_PARSER_CHECK([./input], 0,
[[15
]])
-## ------------- ##
-## Destructors. ##
-## ------------- ##
+## -------------------------- ##
+## Printers and Destructors. ##
+## -------------------------- ##
-AT_SETUP([Destructors])
+# _AT_CHECK_PRINTER_AND_DESTRUCTOR($1, $2, $3, BISON-DIRECTIVE)
+# -------------------------------------------------------------
+m4_define([_AT_CHECK_PRINTER_AND_DESTRUCTOR],
+[m4_if([$1$2$3], $[1]$[2]$[3], [],
+ [m4_fatal([$0: Invalid arguments: $@])])dnl
+
+AT_SETUP([Printers and Destructors: $4])
# Make sure complex $n work.
AT_DATA([[input.y]],
-[[%{
+[[$4
+%{
#include <stdio.h>
#include <stdlib.h>
#include <assert.h>
-#define YYERROR_VERBOSE 1
-#define YYDEBUG 1
-/* #define YYPRINT yyprint */
-
static int yylex (void);
static void yyerror (const char *msg);
-static void yyprint (FILE *out, int toknum, int tokval);
%}
-
+%error-verbose
+%debug
+%verbose
+%locations
%union
{
int ival;
}
-%type <ival> thing 'x'
-%destructor { printf ("Freeing thing %d\n", $$); } thing
-%destructor { printf ("Freeing 'x' %d\n", $$); } 'x'
+%type <ival> 'x' thing line input
+
+%printer { fprintf (yyout, "%d@%d", $$, @$.first_line); }
+ input line thing 'x'
+
+%destructor
+ { fprintf (stdout, "Freeing nterm input (%d@%d)\n", $$, @$.first_line); }
+ input
+
+%destructor
+ { fprintf (stdout, "Freeing nterm line (%d@%d)\n", $$, @$.first_line); }
+ line
+
+%destructor
+ { fprintf (stdout, "Freeing nterm thing (%d@%d)\n", $$, @$.first_line); }
+ thing
+
+%destructor
+ { fprintf (stdout, "Freeing token 'x' (%d@%d)\n", $$, @$.first_line); }
+ 'x'
%%
input:
/* Nothing. */
-| input line
+ {
+ $$ = 0;
+ printf ("input(%d@%d): /* Nothing */';'\n", $$, @$.first_line);
+ }
+| line input /* Right recursive to load the stack so that popping at
+ EOF can be exercised. */
+ {
+ $$ = 2;
+ printf ("input(%d@%d): line(%d@%d) input(%d@%d)';'\n",
+ $$, @$.first_line, $1, @1.first_line, $2, @2.first_line);
+ }
;
line:
thing thing thing ';'
- { printf ("input: thing(%d) thing(%d) thing(%d) ';'\n", $1, $2, $3); }
+ {
+ $$ = $1;
+ printf ("line(%d@%d): thing(%d@%d) thing(%d@%d) thing(%d@%d) ';'\n",
+ $$, @$.first_line, $1, @1.first_line, $2, @2.first_line,
+ $3, @3.first_line);
+ }
| thing thing ';'
- { printf ("input: thing(%d) thing(%d) ';'\n", $1, $2); }
+ {
+ $$ = $1;
+ printf ("line(%d@%d): thing(%d@%d) thing(%d@%d) ';'\n",
+ $$, @$.first_line, $1, @1.first_line, $2, @2.first_line);
+ }
| thing ';'
- { printf ("input: thing(%d) ';'\n", $1); }
+ {
+ $$ = $1;
+ printf ("line(%d@%d): thing(%d@%d) ';'\n",
+ $$, @$.first_line, $1, @1.first_line);
+ }
| error ';'
- { printf ("input: error ';'\n"); }
+ {
+ $$ = -1;
+ printf ("line(%d@%d): error(@%d) ';'\n",
+ $$, @$.first_line, @1.first_line);
+ }
;
thing:
- 'x' { printf ("thing: 'x' (%d)\n", $1); $$ = $1; }
+ 'x'
+ {
+ $$ = $1;
+ printf ("thing(%d@%d): 'x'(%d@%d)\n",
+ $$, @$.first_line, $1, @1.first_line);
+ }
;
%%
static int
yylex (void)
{
- static const int input[] =
+ static const unsigned int input[] =
{
+ /* Exericise the discarding of stack top and input until `error'
+ can be reduced. */
'x', 'x', 'x', 'x', 'x', 'x', ';',
+
+ /* Load the stack and provoke an error that cannot be caught by
+ the grammar, to check that the stack is cleared. */
'x', 'x', ';',
'x', ';',
- 'x', 'y', ';'
+ 'y'
};
- static int counter = 0;
+ static unsigned int counter = 0;
if (counter < (sizeof(input) / sizeof (input[0])))
{
yylval.ival = counter;
- return input[counter++];
+ /* As in BASIC, line numbers go from 10 to 10. */
+ yylloc.first_line = 10 * counter;
+ printf ("sending: '%c' (value = %d, line %d)\n",
+ input[counter], yylval.ival, yylloc.first_line);
+ return (int) input[counter++];
}
else
- return EOF;
+ {
+ printf ("sending: EOF\n");
+ return EOF;
+ }
}
static void
yyerror (const char *msg)
{
- fprintf (stdout, "%s\n", msg);
-}
-
-static void
-yyprint (FILE *out, int toknum, int tokval)
-{
- if (0 < toknum && toknum < 256)
- fprintf (out, " = %d", tokval);
+ fprintf (stdout, "%d: %s\n", yylloc.first_line, msg);
}
int
}
]])
-AT_CHECK([bison input.y -d -v -o input.c])
-AT_CHECK([$CC $CFLAGS $CPPFLAGS input.c -o input], 0, [], [ignore])
-AT_CHECK([./input], 0,
-[[thing: 'x' (0)
-thing: 'x' (1)
-thing: 'x' (2)
-parse error, unexpected 'x', expecting ';'
-Freeing thing 2
-Freeing thing 1
-Freeing thing 0
-Freeing 'x' 3
-Freeing 'x' 4
-Freeing 'x' 5
-input: error ';'
-thing: 'x' (7)
-thing: 'x' (8)
-input: thing(7) thing(8) ';'
-thing: 'x' (10)
-input: thing(10) ';'
-thing: 'x' (12)
-parse error, unexpected $undefined., expecting 'x' or ';'
-Freeing thing 12
-input: error ';'
-Successful parse.
+AT_CHECK([bison -o input.c input.y])
+AT_COMPILE([input])
+AT_PARSER_CHECK([./input], 1,
+[[sending: 'x' (value = 0, line 0)
+thing(0@0): 'x'(0@0)
+sending: 'x' (value = 1, line 10)
+thing(1@10): 'x'(1@10)
+sending: 'x' (value = 2, line 20)
+thing(2@20): 'x'(2@20)
+sending: 'x' (value = 3, line 30)
+30: parse error, unexpected 'x', expecting ';'
+Freeing nterm thing (2@20)
+Freeing nterm thing (1@10)
+Freeing nterm thing (0@0)
+Freeing token 'x' (3@30)
+sending: 'x' (value = 4, line 40)
+Freeing token 'x' (4@40)
+sending: 'x' (value = 5, line 50)
+Freeing token 'x' (5@50)
+sending: ';' (value = 6, line 60)
+line(-1@50): error(@50) ';'
+sending: 'x' (value = 7, line 70)
+thing(7@70): 'x'(7@70)
+sending: 'x' (value = 8, line 80)
+thing(8@80): 'x'(8@80)
+sending: ';' (value = 9, line 90)
+line(7@70): thing(7@70) thing(8@80) ';'
+sending: 'x' (value = 10, line 100)
+thing(10@100): 'x'(10@100)
+sending: ';' (value = 11, line 110)
+line(10@100): thing(10@100) ';'
+sending: 'y' (value = 12, line 120)
+120: parse error, unexpected $undefined, expecting $end or 'x'
+sending: EOF
+Freeing nterm line (10@100)
+Freeing nterm line (7@70)
+Freeing nterm line (-1@50)
+Parsing FAILED.
]])
AT_CLEANUP
+])
+
+
+# AT_CHECK_PRINTER_AND_DESTRUCTOR([BISON-OPTIONS])
+# ------------------------------------------------
+# Produce `calc.y'.
+m4_define([AT_CHECK_PRINTER_AND_DESTRUCTOR],
+[_AT_CHECK_PRINTER_AND_DESTRUCTOR($[1], $[2], $[3], [$1])
+])
+
+
+AT_CHECK_PRINTER_AND_DESTRUCTOR()
+AT_CHECK_PRINTER_AND_DESTRUCTOR([%glr-parser])
projects / bison.git / blobdiff