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Introduce typeid_operation

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This adds class typeid_operation, which implements OP_TYPEID.

gdb/ChangeLog
2021-03-08  Tom Tromey  <tom@tromey.com>

	* expop.h (class typeid_operation): New.
This commit is contained in:
Tom Tromey 2021-03-08 07:27:57 -07:00
parent 0af8829eb1
commit 929f3aa742
2 changed files with 33 additions and 0 deletions
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4
gdb/ChangeLog
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@ -1,3 +1,7 @@
2021-03-08 Tom Tromey <tom@tromey.com>
* expop.h (class typeid_operation): New.
2021-03-08 Tom Tromey <tom@tromey.com>
* expop.h (class decltype_operation): New.

29
gdb/expop.h
View File

@ -1517,6 +1517,35 @@ public:
{ return OP_DECLTYPE; }
};
/* Implement 'typeid'. */
class typeid_operation
: public tuple_holding_operation<operation_up>
{
public:
using tuple_holding_operation::tuple_holding_operation;
value *evaluate (struct type *expect_type,
struct expression *exp,
enum noside noside) override
{
enum exp_opcode sub_op = std::get<0> (m_storage)->opcode ();
enum noside sub_noside
= ((sub_op == OP_TYPE || sub_op == OP_DECLTYPE || sub_op == OP_TYPEOF)
? EVAL_AVOID_SIDE_EFFECTS
: noside);
value *result = std::get<0> (m_storage)->evaluate (nullptr, exp,
sub_noside);
if (noside != EVAL_NORMAL)
return allocate_value (cplus_typeid_type (exp->gdbarch));
return cplus_typeid (result);
}
enum exp_opcode opcode () const override
{ return OP_TYPEID; }
};
} /* namespace expr */
#endif /* EXPOP_H */