* src/reader.c (grammar_current_rule_check): Also check that $$

is used.
Take the rule to check as argument, hence rename as...
(grammar_rule_check): this.
* src/reader.h, src/reader.c (grammar_rule_begin, grammar_rule_end):
Rename as...
(grammar_rule_begin, grammar_rule_end): these, for consistency.
(grammar_midrule_action, grammar_symbol_append): Now static.
* tests/torture.at (input): Don't rely on the default action
being always performed.
* tests/calc.at: "Set" $$ even when the action is "cut" with
YYERROR or other.
* tests/actions.at (Exotic Dollars): Instead of using unused
values, check that the warning is issued.
This commit is contained in:
Akim Demaille
2005-12-27 17:50:00 +00:00
parent f8e1c9e55b
commit 8f3596a633
11 changed files with 217 additions and 193 deletions

View File

@@ -30,13 +30,13 @@ AT_SETUP([Mid-rule actions])
# action.
AT_DATA_GRAMMAR([[input.y]],
[[%{
[[%error-verbose
%debug
%{
# include <stdio.h>
# include <stdlib.h>
static void yyerror (const char *msg);
static int yylex (void);
# define YYDEBUG 1
# define YYERROR_VERBOSE 1
%}
%%
exp: { putchar ('0'); }
@@ -91,13 +91,13 @@ AT_CLEANUP
AT_SETUP([Exotic Dollars])
AT_DATA_GRAMMAR([[input.y]],
[[%{
[[%error-verbose
%debug
%{
# include <stdio.h>
# include <stdlib.h>
static void yyerror (const char *msg);
static int yylex (void);
# define YYDEBUG 1
# define YYERROR_VERBOSE 1
# define USE(Var)
%}
@@ -107,13 +107,12 @@ AT_DATA_GRAMMAR([[input.y]],
};
%type <val> a_1 a_2 a_5
sum_of_the_five_previous_values
exp 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
{
USE (($1, $2, $5));
printf ("%d\n", $6);
}
;
@@ -147,7 +146,11 @@ main (void)
}
]])
AT_CHECK([bison -d -v -o input.c input.y])
AT_CHECK([bison -d -v -o input.c input.y], 0, [],
[input.y:30.6-34.5: warning: unused value: $1
input.y:30.6-34.5: warning: unused value: $2
input.y:30.6-34.5: warning: unused value: $5
])
AT_COMPILE([input])
AT_PARSER_CHECK([./input], 0,
[[15