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Introduce string_operation

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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
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5
gdb/ChangeLog
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> 2021-03-08 Tom Tromey <tom@tromey.com>
* expop.h (class internalvar_operation): New. * expop.h (class internalvar_operation): New.

2
gdb/eval.c
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@ -1284,7 +1284,7 @@ eval_op_register (struct type *expect_type, struct expression *exp,
/* Helper function that implements the body of OP_STRING. */ /* Helper function that implements the body of OP_STRING. */
static struct value * struct value *
eval_op_string (struct type *expect_type, struct expression *exp, eval_op_string (struct type *expect_type, struct expression *exp,
enum noside noside, int len, const char *string) enum noside noside, int len, const char *string)
{ {

24
gdb/expop.h
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, extern struct value *eval_op_register (struct type *expect_type,
struct expression *exp, struct expression *exp,
enum noside noside, const char *name); 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 namespace expr
{ {
@ -681,6 +685,26 @@ protected:
override; 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 */ } /* namespace expr */
#endif /* EXPOP_H */ #endif /* EXPOP_H */