[PATCH 139/203] Introduce ada_unop_range_operation

[Tom Tromey]

This adds class ada_unop_range_operation, which implements
UNOP_IN_RANGE.

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

	* ada-lang.c (ada_unop_in_range): No longer static.
	* ada-exp.h (class ada_unop_range_operation): New.
---
 gdb/ChangeLog  |  5 +++++
 gdb/ada-exp.h  | 25 +++++++++++++++++++++++++
 gdb/ada-lang.c |  2 +-
 3 files changed, 31 insertions(+), 1 deletion(-)

diff --git a/gdb/ada-exp.h b/gdb/ada-exp.h
index 8f114b3a145..de69210bd2a 100644
--- a/gdb/ada-exp.h
+++ b/gdb/ada-exp.h
@@ -38,6 +38,10 @@ extern struct value *ada_abs (struct type *expect_type,
 			      struct expression *exp,
 			      enum noside noside, enum exp_opcode op,
 			      struct value *arg1);
+extern struct value *ada_unop_in_range (struct type *expect_type,
+					struct expression *exp,
+					enum noside noside, enum exp_opcode op,
+					struct value *arg1, struct type *type);
 
 namespace expr
 {
@@ -109,6 +113,27 @@ using ada_atr_tag_operation = unop_operation<OP_ATR_TAG, ada_atr_tag>;
 using ada_atr_size_operation = unop_operation<OP_ATR_SIZE, ada_atr_size>;
 using ada_abs_operation = unop_operation<UNOP_ABS, ada_abs>;
 
+/* The in-range operation, given a type.  */
+class ada_unop_range_operation
+  : public tuple_holding_operation<operation_up, struct type *>
+{
+public:
+
+  using tuple_holding_operation::tuple_holding_operation;
+
+  value *evaluate (struct type *expect_type,
+		   struct expression *exp,
+		   enum noside noside) override
+  {
+    value *val = std::get<0> (m_storage)->evaluate (nullptr, exp, noside);
+    return ada_unop_in_range (expect_type, exp, noside, UNOP_IN_RANGE,
+			      val, std::get<1> (m_storage));
+  }
+
+  enum exp_opcode opcode () const override
+  { return UNOP_IN_RANGE; }
+};
+
 } /* namespace expr */
 
 #endif /* ADA_EXP_H */
diff --git a/gdb/ada-lang.c b/gdb/ada-lang.c
index 32a64916d0e..e2c9de69b65 100644
--- a/gdb/ada-lang.c
+++ b/gdb/ada-lang.c
@@ -10129,7 +10129,7 @@ ada_unop_neg (struct type *expect_type,
 
 /* A helper function for UNOP_IN_RANGE.  */
 
-static value *
+value *
 ada_unop_in_range (struct type *expect_type,
 		   struct expression *exp,
 		   enum noside noside, enum exp_opcode op,
-- 
2.26.2