[PATCH 090/203] Introduce objc_nsstring_operation

Tom Tromey
2021-01-01T21:48:31Z

This adds class objc_nsstring_operation, which implements
OP_OBJC_NSSTRING.

gdb/ChangeLog
2021-01-01 Tom Tromey <tom@tromey.com>

* eval.c: Include c-exp.h.
* c-exp.h (class objc_nsstring_operation): New.
---
gdb/ChangeLog | 5 +++++
gdb/c-exp.h | 22 ++++++++++++++++++++++
gdb/eval.c | 1 +
3 files changed, 28 insertions(+)

diff --git a/gdb/c-exp.h b/gdb/c-exp.h
index 5558a773e98..a7b11b5a25d 100644
--- a/gdb/c-exp.h
+++ b/gdb/c-exp.h
@@ -21,6 +21,7 @@
#define C_EXP_H

#include "expop.h"
+#include "objc-lang.h"

namespace expr
{
@@ -41,6 +42,27 @@ class c_string_operation
{ return OP_STRING; }
};

+class objc_nsstring_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
+ {
+ if (noside == EVAL_SKIP)
+ return eval_skip_value (exp);
+ const std::string &str = std::get<0> (m_storage);
+ return value_nsstring (exp->gdbarch, str.c_str (), str.size () + 1);
+ }
+
+ enum exp_opcode opcode () const override
+ { return OP_OBJC_NSSTRING; }
+};
+
}/* namespace expr */

#endif /* C_EXP_H */
diff --git a/gdb/eval.c b/gdb/eval.c
index 7968d008086..0b709ce17a2 100644
--- a/gdb/eval.c
+++ b/gdb/eval.c
@@ -41,6 +41,7 @@
#include "typeprint.h"
#include <ctype.h>
#include "expop.h"
+#include "c-exp.h"

/* Prototypes for local functions. */

--
2.26.2