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As in semantic actions, make @$ in %initial-action, %destructor, and

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%printer imply %locations.
* src/scan-code.l (SC_SYMBOL_ACTION): Set locations_flag = true when
scanning @$.
* tests/actions.at (AT_CHECK_ACTION_LOCATIONS): New macro supporting...
(@$ in %initial-action implies %locations,
@$ in %destructor implies %locations,
@$ in %printer implies %locations): ... these new test cases.
This commit is contained in:
Joel E. Denny
2007-02-10 22:28:23 +00:00
parent 1cfe1ed7c8
commit e785ccf715
3 changed files with 74 additions and 1 deletions
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11
ChangeLog
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@@ -1,3 +1,14 @@
2007-02-10 Joel E. Denny <jdenny@ces.clemson.edu>
As in semantic actions, make @$ in %initial-action, %destructor, and
%printer imply %locations.
* src/scan-code.l (SC_SYMBOL_ACTION): Set locations_flag = true when
scanning @$.
* tests/actions.at (AT_CHECK_ACTION_LOCATIONS): New macro supporting...
(@$ in %initial-action implies %locations,
@$ in %destructor implies %locations,
@$ in %printer implies %locations): ... these new test cases.
2007-02-07 Paul Eggert <eggert@cs.ucla.edu>
Undo most of the 2007-02-03 change, switching to the strcase module

5
src/scan-code.l
View File

@@ -202,7 +202,10 @@ splice (\\[ \f\t\v]*\n)*
obstack_sgrow (&obstack_for_string, "]b4_dollar_dollar[");
self->is_value_used = true;
}
"@$" obstack_sgrow (&obstack_for_string, "]b4_at_dollar[");
"@$" {
obstack_sgrow (&obstack_for_string, "]b4_at_dollar[");
locations_flag = true;
}
}

59
tests/actions.at
View File

@@ -1247,3 +1247,62 @@ Stack now 0
]])
AT_CLEANUP
## ----------------------- ##
## @$ implies %locations. ##
## ----------------------- ##
# Bison once forgot to check for @$ in actions other than semantic actions.
# AT_CHECK_ACTION_LOCATIONS(ACTION-DIRECTIVE)
# -------------------------------------------------------
m4_define([AT_CHECK_ACTION_LOCATIONS],
[AT_SETUP([[@$ in ]$1[ implies %locations]])
AT_DATA_GRAMMAR([[input.y]],
[[%code {
#include <stdio.h>
static int yylex (void);
static void yyerror (char const *msg);
}
%debug
]$1[ {
printf ("%d\n", @$.first_line);
} ]m4_if($1, [%initial-action], [], [[start]])[
%%
start: ;
%%
static int
yylex (void)
{
return 0;
}
static void
yyerror (char const *msg)
{
fprintf (stderr, "%s\n", msg);
}
int
main (void)
{
return yyparse ();
}
]])
AT_CHECK([[bison -o input.c input.y]])
AT_COMPILE([[input]])
AT_CLEANUP])
AT_CHECK_ACTION_LOCATIONS([[%initial-action]])
AT_CHECK_ACTION_LOCATIONS([[%destructor]])
AT_CHECK_ACTION_LOCATIONS([[%printer]])