Introduce type_operation

This adds class type_operation, which implements OP_TYPE.

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

	* expop.h (class type_operation): New.
	* eval.c (eval_op_type): No longer static.

1 files changed, 25 insertions, 0 deletions

diff --git a/gdb/expop.h b/gdb/expop.h
index 4b1d65a..8b7bfbe 100644
--- a/gdb/expop.h
+++ b/gdb/expop.h
@@ -186,6 +186,9 @@ extern struct value *eval_op_ind (struct type *expect_type,
 				  struct expression *exp,
 				  enum noside noside,
 				  struct value *arg1);
+extern struct value *eval_op_type (struct type *expect_type,
+				   struct expression *exp,
+				   enum noside noside, struct type *type);
 
 namespace expr
 {
@@ -1420,6 +1423,28 @@ protected:
   }
 };
 
+/* Implement OP_TYPE.  */
+class type_operation
+  : public tuple_holding_operation<struct type *>
+{
+public:
+
+  using tuple_holding_operation::tuple_holding_operation;
+
+  value *evaluate (struct type *expect_type,
+		   struct expression *exp,
+		   enum noside noside) override
+  {
+    return eval_op_type (expect_type, exp, noside, std::get<0> (m_storage));
+  }
+
+  enum exp_opcode opcode () const override
+  { return OP_TYPE; }
+
+  bool constant_p () const override
+  { return true; }
+};
+
 } /* namespace expr */
 
 #endif /* EXPOP_H */