AT_DATA([input.y],
[[%token <integer> INT
-%type <integer> exp
+%type <integer> a b c d e f g h i j k l
+%destructor { destroy ($$); } INT a b c d e f g h i j k l
%%
-exp:
- INT { } INT { } INT { }
-/* Ideally we would like to complain also about $2 and $4 here, but
- it's hard to implement. */
-| INT { $$ } INT { $$ } INT { }
-| INT { $1 } INT { } INT { }
-| INT { } INT { $1 } INT { }
-| INT { } INT { } INT { $1 }
-| INT { } INT { } INT { $$ = $1 + $3 + $5; }
+start:
+ 'a' a { $2 } | 'b' b { $2 } | 'c' c { $2 } | 'd' d { $2 } | 'e' e { $2 }
+| 'f' f { $2 } | 'g' g { $2 } | 'h' h { $2 } | 'i' i { $2 } | 'j' j { $2 }
+| 'k' k { $2 } | 'l' l { $2 }
;
+
+a: INT | INT { } INT { } INT { };
+b: INT | /* empty */;
+c: INT | INT { $1 } INT { } INT { };
+d: INT | INT { } INT { $1 } INT { };
+e: INT | INT { } INT { } INT { $1 };
+f: INT | INT { } INT { } INT { $$ = $1 + $3 + $5; };
+g: INT | INT { $$ } INT { $$ } INT { };
+h: INT | INT { $$ } INT { $$ = $2 } INT { };
+i: INT | INT INT { } { $$ = $1 + $2; };
+j: INT | INT INT { $<integer>$ = 1; } { $$ = $1 + $2; };
+k: INT | INT INT { $$; } { $$ = $3; } { };
+l: INT | INT { $$ = $1; } INT { $$ = $2 + $3; } INT { $$ = $4 + $5; };
+
]])
AT_CHECK([bison input.y], [], [],
-[[input.y:5.3-25: warning: unset value: $$
-input.y:5.3-25: warning: unused value: $1
-input.y:5.3-25: warning: unused value: $3
-input.y:5.3-25: warning: unused value: $5
-input.y:8.3-31: warning: unset value: $$
-input.y:8.3-31: warning: unused value: $1
-input.y:8.3-31: warning: unused value: $3
-input.y:8.3-31: warning: unused value: $5
-input.y:9.3-28: warning: unset value: $$
-input.y:9.3-28: warning: unused value: $3
-input.y:9.3-28: warning: unused value: $5
-input.y:10.3-28: warning: unset value: $$
-input.y:10.3-28: warning: unused value: $3
-input.y:10.3-28: warning: unused value: $5
-input.y:11.3-29: warning: unset value: $$
-input.y:11.3-29: warning: unused value: $3
-input.y:11.3-29: warning: unused value: $5
-input.y: conflicts: 1 reduce/reduce
-input.y:8.7-12: warning: rule never reduced because of conflicts: @3: /* empty */
-input.y:9.7-12: warning: rule never reduced because of conflicts: @5: /* empty */
-input.y:10.7-9: warning: rule never reduced because of conflicts: @7: /* empty */
-input.y:11.7-9: warning: rule never reduced because of conflicts: @9: /* empty */
-input.y:12.7-9: warning: rule never reduced because of conflicts: @11: /* empty */
+[[input.y:11.10-32: warning: unset value: $$
+input.y:11.10-32: warning: unused value: $1
+input.y:11.10-32: warning: unused value: $3
+input.y:11.10-32: warning: unused value: $5
+input.y:12.9: warning: empty rule for typed nonterminal, and no action
+input.y:13.10-35: warning: unset value: $$
+input.y:13.10-35: warning: unused value: $3
+input.y:13.10-35: warning: unused value: $5
+input.y:14.10-35: warning: unset value: $$
+input.y:14.10-35: warning: unused value: $3
+input.y:14.10-35: warning: unused value: $5
+input.y:15.10-36: warning: unset value: $$
+input.y:15.10-36: warning: unused value: $3
+input.y:15.10-36: warning: unused value: $5
+input.y:17.10-38: warning: unset value: $$
+input.y:17.10-38: warning: unused value: $1
+input.y:17.10-38: warning: unused value: $2
+input.y:17.10-38: warning: unused value: $3
+input.y:17.10-38: warning: unused value: $4
+input.y:17.10-38: warning: unused value: $5
+input.y:18.10-43: warning: unset value: $$
+input.y:18.10-43: warning: unused value: $1
+input.y:18.10-43: warning: unused value: $3
+input.y:18.10-43: warning: unused value: $4
+input.y:18.10-43: warning: unused value: $5
+input.y:20.10-55: warning: unused value: $3
+input.y:21.10-41: warning: unset value: $$
+input.y:21.10-41: warning: unused value: $1
+input.y:21.10-41: warning: unused value: $2
+input.y:21.10-41: warning: unused value: $4
]])
AT_CLEANUP
input.y:3.7-11: first declaration
input.y:10.13-17: %destructor redeclaration for foo
input.y:5.13-17: first declaration
-input.y:9.19-23: %printer redeclaration for foo
+input.y:9.10-14: %printer redeclaration for foo
input.y:10.13-17: first declaration
input.y:11.1-5: %left redeclaration for foo
input.y:6.1-5: first declaration