Introduce string_operation

This adds string_operation, which implements OP_STRING for most
languages (C has its own variant).

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

	* expop.h (class string_operation): New.
	* eval.c (eval_op_string): No longer static.
This commit is contained in:
Tom Tromey
2021-03-08 07:27:57 -07:00
parent e6e01e16c5
commit b50db09ff9
3 changed files with 30 additions and 1 deletions

View File

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

View File

@ -1284,7 +1284,7 @@ eval_op_register (struct type *expect_type, struct expression *exp,
/* Helper function that implements the body of OP_STRING. */
static struct value *
struct value *
eval_op_string (struct type *expect_type, struct expression *exp,
enum noside noside, int len, const char *string)
{

View File

@ -61,6 +61,10 @@ extern struct value *eval_op_func_static_var (struct type *expect_type,
extern struct value *eval_op_register (struct type *expect_type,
struct expression *exp,
enum noside noside, const char *name);
extern struct value *eval_op_string (struct type *expect_type,
struct expression *exp,
enum noside noside, int len,
const char *string);
namespace expr
{
@ -681,6 +685,26 @@ protected:
override;
};
class string_operation
: public tuple_holding_operation<std::string>
{
public:
using tuple_holding_operation::tuple_holding_operation;
value *evaluate (struct type *expect_type,
struct expression *exp,
enum noside noside) override
{
const std::string &str = std::get<0> (m_storage);
return eval_op_string (expect_type, exp, noside,
str.size (), str.c_str ());
}
enum exp_opcode opcode () const override
{ return OP_STRING; }
};
} /* namespace expr */
#endif /* EXPOP_H */