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c++: Fix demangling of x.operator type 

d_operator_name decides whether "cv" indicates a cast or a conversion
operator based on is_expression.  "on" specifies that we want the conversion
operator.

libiberty/ChangeLog:

	* cp-demangle.c (d_unqualified_name): Clear is_expression.
	* testsuite/demangle-expected: Add tests.
This commit is contained in:
Jason Merrill 2020-12-19 13:10:01 -05:00
parent 0e1d4b3bfe
commit 7169049332
2 changed files with 13 additions and 1 deletions
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8
libiberty/cp-demangle.c
View File

@ -1632,9 +1632,15 @@ d_unqualified_name (struct d_info *di)
ret = d_source_name (di);
else if (IS_LOWER (peek))
{
int was_expr = di->is_expression;
if (peek == 'o' && d_peek_next_char (di) == 'n')
d_advance (di, 2);
{
d_advance (di, 2);
/* Treat cv as naming a conversion operator. */
di->is_expression = 0;
}
ret = d_operator_name (di);
di->is_expression = was_expr;
if (ret != NULL && ret->type == DEMANGLE_COMPONENT_OPERATOR)
{
di->expansion += sizeof "operator" + ret->u.s_operator.op->len - 2;

6
libiberty/testsuite/demangle-expected
View File

@ -1476,3 +1476,9 @@ void f<int>(decltype (__alignof__(int)))
_Z1fIiEvDTv111__alignof__tlT_EE
void f<int>(decltype (__alignof__(int{})))
_Z1gI1AEv1SIXadsrT_oncviEE
void g<A>(S<&A::operator int>)
_Z1jI1AEDTcldtfp_oncvPT_EES1_
decltype (({parm#1}.(operator A*))()) j<A>(A)