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| author | Daniel Jacobowitz <drow@false.org> | 2007-10-22 16:07:13 +0000 |
|---|---|---|
| committer | Daniel Jacobowitz <drow@false.org> | 2007-10-22 16:07:13 +0000 |
| commit | 44742d57fbfe7f4041e72db9527e72f63abdbc5e (patch) | |
| tree | 33dcaefd563d21a3c2711292a03f558159c99bcc /gdb/cp-name-parser.y | |
| parent | c9b3544acea166649878ad4a7afc502cf44a2c5a (diff) | |
| download | gdb-44742d57fbfe7f4041e72db9527e72f63abdbc5e.zip gdb-44742d57fbfe7f4041e72db9527e72f63abdbc5e.tar.gz gdb-44742d57fbfe7f4041e72db9527e72f63abdbc5e.tar.bz2 | |
* cp-name-parser.y (exp1): Add & ( var ) as a reference expression.
(exp): Remove and document function-like casts.
Diffstat (limited to 'gdb/cp-name-parser.y')
| -rw-r--r-- | gdb/cp-name-parser.y | 21 |
1 files changed, 9 insertions, 12 deletions
diff --git a/gdb/cp-name-parser.y b/gdb/cp-name-parser.y index 0eab4f2..b4597ec 100644 --- a/gdb/cp-name-parser.y +++ b/gdb/cp-name-parser.y @@ -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 */ |