Introduce unop_alignof_operation

This adds class unop_alignof_operation, which implements UNOP_ALIGNOF.

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

	* expop.h (class unop_alignof_operation): New.
	* eval.c (eval_op_alignof): No longer static.
This commit is contained in:
Tom Tromey 2021-03-08 07:27:57 -07:00
parent 85d23bda83
commit ae4bb61e19
3 changed files with 31 additions and 1 deletions

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@ -1,3 +1,8 @@
2021-03-08 Tom Tromey <tom@tromey.com>
* expop.h (class unop_alignof_operation): New.
* eval.c (eval_op_alignof): No longer static.
2021-03-08 Tom Tromey <tom@tromey.com>
* expop.h (class unop_sizeof_operation): New.

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@ -1881,7 +1881,7 @@ eval_op_ind (struct type *expect_type, struct expression *exp,
/* A helper function for UNOP_ALIGNOF. */
static struct value *
struct value *
eval_op_alignof (struct type *expect_type, struct expression *exp,
enum noside noside,
struct value *arg1)

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@ -189,6 +189,10 @@ extern struct value *eval_op_ind (struct type *expect_type,
extern struct value *eval_op_type (struct type *expect_type,
struct expression *exp,
enum noside noside, struct type *type);
extern struct value *eval_op_alignof (struct type *expect_type,
struct expression *exp,
enum noside noside,
struct value *arg1);
namespace expr
{
@ -1611,6 +1615,27 @@ protected:
override;
};
/* Implement 'alignof'. */
class unop_alignof_operation
: public maybe_constant_operation<operation_up>
{
public:
using maybe_constant_operation::maybe_constant_operation;
value *evaluate (struct type *expect_type,
struct expression *exp,
enum noside noside) override
{
value *val = std::get<0> (m_storage)->evaluate (nullptr, exp,
EVAL_AVOID_SIDE_EFFECTS);
return eval_op_alignof (expect_type, exp, noside, val);
}
enum exp_opcode opcode () const override
{ return UNOP_ALIGNOF; }
};
} /* namespace expr */
#endif /* EXPOP_H */