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* c-exp.y: Remove never-used (because of shift/reduce conflicts) 

rules for pointers to members.
	* Makefile.in: Remove notice about expected shift/reduce conflicts.
This commit is contained in:
Jim Kingdon 1993-10-18 18:01:51 +00:00
parent f91b837dd0
commit adee89e8a2
3 changed files with 16 additions and 22 deletions
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4
gdb/ChangeLog
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@ -1,5 +1,9 @@
Mon Oct 18 10:28:08 1993 Jim Kingdon (kingdon@lioth.cygnus.com)
* c-exp.y: Remove never-used (because of shift/reduce conflicts)
rules for pointers to members.
* Makefile.in: Remove notice about expected shift/reduce conflicts.
* buildsym.c (finish_block): If we pop the context stack and it is
not empty, complain () instead of abort ().

1
gdb/Makefile.in
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@ -718,7 +718,6 @@ version.c: Makefile
# else.
c-exp.tab.o: c-exp.tab.c
c-exp.tab.c: c-exp.y Makefile.in
@echo 'Expect 4 shift/reduce conflicts.'
$(YACC) $(YFLAGS) $(srcdir)/c-exp.y
-sed -e '/extern.*malloc/d' \
-e '/extern.*realloc/d' \

33
gdb/c-exp.y
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@ -722,15 +722,12 @@ variable: name_not_typename
;
/* shift/reduce conflict: "typebase ." and the token is '('. (Shows up
twice, once where qualified_name is a possibility and once where
it is not). */
/* shift/reduce conflict: "typebase CONST_KEYWORD ." and the token is '('. */
/* shift/reduce conflict: "typebase VOLATILE_KEYWORD ." and the token is
'('. */
ptype : typebase
/* "const" and "volatile" are curently ignored. A type qualifier
before the type is currently handled in the typebase rule. */
before the type is currently handled in the typebase rule.
The reason for recognizing these here (shift/reduce conflicts)
might be obsolete now that some pointer to member rules have
been deleted. */
| typebase CONST_KEYWORD
| typebase VOLATILE_KEYWORD
| typebase abs_decl
@ -766,9 +763,6 @@ direct_abs_decl: '(' abs_decl ')'
$$ = 0;
}
/* shift/reduce conflict. "direct_abs_decl . func_mod", and the token
is '('. */
| direct_abs_decl func_mod
{ push_type (tp_function); }
| func_mod
@ -787,20 +781,17 @@ func_mod: '(' ')'
{ free ((PTR)$2); $$ = 0; }
;
/* shift/reduce conflict: "type '(' typebase COLONCOLON '*' ')' ." and the
token is '('. */
/* We used to try to recognize more pointer to member types here, but
that didn't work (shift/reduce conflicts meant that these rules never
got executed). The problem is that
int (foo::bar::baz::bizzle)
is a function type but
int (foo::bar::baz::bizzle::*)
is a pointer to member type. Stroustrup loses again! */
type : ptype
| typebase COLONCOLON '*'
{ $$ = lookup_member_type (builtin_type_int, $1); }
| type '(' typebase COLONCOLON '*' ')'
{ $$ = lookup_member_type ($1, $3); }
| type '(' typebase COLONCOLON '*' ')' '(' ')'
{ $$ = lookup_member_type
(lookup_function_type ($1), $3); }
| type '(' typebase COLONCOLON '*' ')' '(' nonempty_typelist ')'
{ $$ = lookup_member_type
(lookup_function_type ($1), $3);
free ((PTR)$8); }
;
typebase /* Implements (approximately): (type-qualifier)* type-specifier */