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* cp-name-parser.y (exp1): Add & ( var ) as a reference expression.

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(exp): Remove and document function-like casts.
This commit is contained in:
Daniel Jacobowitz 2007-10-22 16:07:13 +00:00
parent c9b3544ace
commit 44742d57fb
2 changed files with 14 additions and 12 deletions
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5
gdb/ChangeLog
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@ -1,3 +1,8 @@
2007-10-22 Daniel Jacobowitz <dan@codesourcery.com>
* cp-name-parser.y (exp1): Add & ( var ) as a reference expression.
(exp): Remove and document function-like casts.
2007-10-22 Daniel Jacobowitz <dan@codesourcery.com>
* cp-support.c: Include "safe-ctype.h".

21
gdb/cp-name-parser.y
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@ -1011,6 +1011,8 @@ exp1 : exp '>' exp
in parentheses. */
exp1 : '&' start
{ $$ = fill_comp (DEMANGLE_COMPONENT_UNARY, make_operator ("&", 1), $2); }
| '&' '(' start ')'
{ $$ = fill_comp (DEMANGLE_COMPONENT_UNARY, make_operator ("&", 1), $3); }
;
/* Expressions, not including the comma operator. */
@ -1066,18 +1068,13 @@ exp : REINTERPRET_CAST '<' type '>' '(' exp1 ')' %prec UNARY
}
;
/* Another form of C++-style cast. "type ( exp1 )" is not allowed (it's too
ambiguous), but "name ( exp1 )" is. Because we don't need to support
function types, we can handle this unambiguously (the use of typespec_2
prevents a silly, harmless conflict with qualifiers_opt). This does not
appear in demangler output so it's not a great loss if we need to
disable it. */
exp : typespec_2 '(' exp1 ')' %prec UNARY
{ $$ = fill_comp (DEMANGLE_COMPONENT_UNARY,
fill_comp (DEMANGLE_COMPONENT_CAST, $1, NULL),
$3);
}
;
/* Another form of C++-style cast is "type ( exp1 )". This creates too many
conflicts to support. For a while we supported the simpler
"typespec_2 ( exp1 )", but that conflicts with "& ( start )" as a
reference, deep within the wilderness of abstract declarators:
Qux<int(&(*))> vs Qux<int(&(var))>, a shift-reduce conflict at the
innermost left parenthesis. So we do not support function-like casts.
Fortunately they never appear in demangler output. */
/* TO INVESTIGATE: ._0 style anonymous names; anonymous namespaces */