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authorTom Tromey <tom@tromey.com>2021-03-08 07:27:57 -0700
committerTom Tromey <tom@tromey.com>2021-03-08 07:28:19 -0700
commite51e26a090053f8f8354692fff6dce20ed2e47ba (patch)
tree9f703afaf461c5eaa05838e8e4b0b3843f89c09f
parent07f724a8c604cdfa1639f757e577dd6eb9caed25 (diff)
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Introduce concat_operation
This adds class concat_operation, which implements BINOP_CONCAT. gdb/ChangeLog 2021-03-08 Tom Tromey <tom@tromey.com> * expop.h (class concat_operation): New. * eval.c (eval_op_concat): No longer static. Remove "op" parameter. (evaluate_subexp_standard): Update.
-rw-r--r--gdb/ChangeLog7
-rw-r--r--gdb/eval.c11
-rw-r--r--gdb/expop.h26
3 files changed, 38 insertions, 6 deletions
diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 42a8e1c..59cdff7 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,5 +1,12 @@
2021-03-08 Tom Tromey <tom@tromey.com>
+ * expop.h (class concat_operation): New.
+ * eval.c (eval_op_concat): No longer static. Remove "op"
+ parameter.
+ (evaluate_subexp_standard): Update.
+
+2021-03-08 Tom Tromey <tom@tromey.com>
+
* expop.h (class structop_member_operation)
(class structop_mptr_operation): New.
* eval.c (eval_op_member): No longer static.
diff --git a/gdb/eval.c b/gdb/eval.c
index de78631..b78fa3b 100644
--- a/gdb/eval.c
+++ b/gdb/eval.c
@@ -1313,15 +1313,14 @@ eval_op_objc_selector (struct type *expect_type, struct expression *exp,
/* Helper function that implements the body of BINOP_CONCAT. */
-static struct value *
+struct value *
eval_op_concat (struct type *expect_type, struct expression *exp,
- enum noside noside,
- enum exp_opcode op, struct value *arg1, struct value *arg2)
+ enum noside noside, struct value *arg1, struct value *arg2)
{
if (noside == EVAL_SKIP)
return eval_skip_value (exp);
- if (binop_user_defined_p (op, arg1, arg2))
- return value_x_binop (arg1, arg2, op, OP_NULL, noside);
+ if (binop_user_defined_p (BINOP_CONCAT, arg1, arg2))
+ return value_x_binop (arg1, arg2, BINOP_CONCAT, OP_NULL, noside);
else
return value_concat (arg1, arg2);
}
@@ -2791,7 +2790,7 @@ evaluate_subexp_standard (struct type *expect_type,
case BINOP_CONCAT:
arg1 = evaluate_subexp_with_coercion (exp, pos, noside);
arg2 = evaluate_subexp_with_coercion (exp, pos, noside);
- return eval_op_concat (expect_type, exp, noside, op, arg1, arg2);
+ return eval_op_concat (expect_type, exp, noside, arg1, arg2);
case BINOP_ASSIGN:
arg1 = evaluate_subexp (nullptr, exp, pos, noside);
diff --git a/gdb/expop.h b/gdb/expop.h
index cbd4d62..16ee30d 100644
--- a/gdb/expop.h
+++ b/gdb/expop.h
@@ -84,6 +84,10 @@ extern struct value *eval_op_member (struct type *expect_type,
struct expression *exp,
enum noside noside,
struct value *arg1, struct value *arg2);
+extern struct value *eval_op_concat (struct type *expect_type,
+ struct expression *exp,
+ enum noside noside,
+ struct value *arg1, struct value *arg2);
namespace expr
{
@@ -935,6 +939,28 @@ public:
{ return STRUCTOP_MPTR; }
};
+class concat_operation
+ : public maybe_constant_operation<operation_up, operation_up>
+{
+public:
+
+ using maybe_constant_operation::maybe_constant_operation;
+
+ value *evaluate (struct type *expect_type,
+ struct expression *exp,
+ enum noside noside) override
+ {
+ value *lhs
+ = std::get<0> (m_storage)->evaluate_with_coercion (exp, noside);
+ value *rhs
+ = std::get<1> (m_storage)->evaluate_with_coercion (exp, noside);
+ return eval_op_concat (expect_type, exp, noside, lhs, rhs);
+ }
+
+ enum exp_opcode opcode () const override
+ { return BINOP_CONCAT; }
+};
+
} /* namespace expr */
#endif /* EXPOP_H */