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Introduce unop_ind_operation

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This adds class unop_ind_operation, which implements UNOP_IND.

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

	* expop.h (class unop_ind_base_operation)
	(class unop_ind_operation): New.
	* eval.c (eval_op_ind): No longer static.  Remove "op" parameter.
	(unop_ind_base_operation::evaluate_for_address)
	(unop_ind_base_operation::evaluate_for_sizeof): New method.
	* ax-gdb.c (gen_expr_unop) <case UNOP_IND>: New.
This commit is contained in:
Tom Tromey
2021-03-08 07:27:57 -07:00
parent 6d89e2962a
commit 876469ffa1
4 changed files with 111 additions and 5 deletions
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54
gdb/expop.h
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@@ -182,6 +182,10 @@ extern struct value *eval_op_postdec (struct type *expect_type,
enum noside noside,
enum exp_opcode op,
struct value *arg1);
extern struct value *eval_op_ind (struct type *expect_type,
struct expression *exp,
enum noside noside,
struct value *arg1);
namespace expr
{
@@ -1366,6 +1370,56 @@ using postinc_operation
using postdec_operation
= unop_incr_operation<UNOP_POSTDECREMENT, eval_op_postdec>;
/* Base class for implementations of UNOP_IND. */
class unop_ind_base_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
{
if (expect_type != nullptr && expect_type->code () == TYPE_CODE_PTR)
expect_type = TYPE_TARGET_TYPE (check_typedef (expect_type));
value *val = std::get<0> (m_storage)->evaluate (expect_type, exp, noside);
return eval_op_ind (expect_type, exp, noside, val);
}
value *evaluate_for_address (struct expression *exp,
enum noside noside) override;
value *evaluate_for_sizeof (struct expression *exp,
enum noside noside) override;
enum exp_opcode opcode () const override
{ return UNOP_IND; }
};
/* Ordinary UNOP_IND implementation. */
class unop_ind_operation
: public unop_ind_base_operation
{
public:
using unop_ind_base_operation::unop_ind_base_operation;
protected:
void do_generate_ax (struct expression *exp,
struct agent_expr *ax,
struct axs_value *value,
struct type *cast_type)
override
{
gen_expr_unop (exp, UNOP_IND,
std::get<0> (this->m_storage).get (),
ax, value);
}
};
} /* namespace expr */
#endif /* EXPOP_H */