[PATCH 158/203] Implement some Ada OP_ATR_ operations

Tom Tromey
2021-01-01T21:49:21Z

This implements a few Ada OP_ATR_ operations.

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

* ada-lang.c (ada_unop_atr_operation::evaluate): New method.
* ada-exp.h (class ada_unop_atr_operation): New.
---
gdb/ChangeLog | 5 +++++
gdb/ada-exp.h | 16 ++++++++++++++++
gdb/ada-lang.c | 21 +++++++++++++++++++++
3 files changed, 42 insertions(+)

diff --git a/gdb/ada-exp.h b/gdb/ada-exp.h
index 4c30734171f..e92ae469b63 100644
--- a/gdb/ada-exp.h
+++ b/gdb/ada-exp.h
@@ -267,6 +267,22 @@ class ada_binop_in_bounds_operation
{ return BINOP_IN_BOUNDS; }
};

+/* Implement several unary Ada OP_ATR_* operations. */
+class ada_unop_atr_operation
+ : public maybe_constant_operation<operation_up, enum exp_opcode, int>
+{
+public:
+
+ using maybe_constant_operation::maybe_constant_operation;
+
+ value *evaluate (struct type *expect_type,
+ struct expression *exp,
+ enum noside noside) override;
+
+ enum exp_opcode opcode () const override
+ { return std::get<1> (m_storage); }
+};
+
} /* namespace expr */

#endif /* ADA_EXP_H */
diff --git a/gdb/ada-lang.c b/gdb/ada-lang.c
index 8ed4949238c..9887590a782 100644
--- a/gdb/ada-lang.c
+++ b/gdb/ada-lang.c
@@ -10674,6 +10674,27 @@ ada_binop_addsub_operation::evaluate (struct type *expect_type,
return value_cast (type, value_binop (arg1, arg2, std::get<0> (m_storage)));
}

+value *
+ada_unop_atr_operation::evaluate (struct type *expect_type,
+ struct expression *exp,
+ enum noside noside)
+{
+ struct type *type_arg = nullptr;
+ value *val = nullptr;
+
+ if (std::get<0> (m_storage)->opcode () == OP_TYPE)
+ {
+ value *tem = std::get<0> (m_storage)->evaluate (nullptr, exp,
+ EVAL_AVOID_SIDE_EFFECTS);
+ type_arg = value_type (tem);
+ }
+ else
+ val = std::get<0> (m_storage)->evaluate (nullptr, exp, noside);
+
+ return ada_unop_atr (exp, noside, std::get<1> (m_storage),
+ val, type_arg, std::get<2> (m_storage));
+}
+
}

/* Implement the evaluate_exp routine in the exp_descriptor structure
--
2.26.2