Support tracing of struct member accessor methods

This follows the same approach used for attr_reader/attr_writer in
2d98593bf54a37397c6e4886ccc7e3654c2eaf85, skipping the checking for
tracing after the first call using the call cache, and clearing the
call cache when tracing is turned on/off.

Fixes [Bug #18886]

1 files changed, 6 insertions, 2 deletions

diff --git a/vm_eval.c b/vm_eval.c
index a1336cf17a..937f0582c4 100644
--- a/vm_eval.c
+++ b/vm_eval.c
@@ -299,11 +299,15 @@ vm_call0_body(rb_execution_context_t *ec, struct rb_calling_info *calling, const
             }
           case OPTIMIZED_METHOD_TYPE_STRUCT_AREF:
             vm_call_check_arity(calling, 0, argv);
-            ret = vm_call_opt_struct_aref0(ec, calling);
+            VM_CALL_METHOD_ATTR(ret,
+                                vm_call_opt_struct_aref0(ec, calling),
+                                (void)0);
             goto success;
           case OPTIMIZED_METHOD_TYPE_STRUCT_ASET:
             vm_call_check_arity(calling, 1, argv);
-            ret = vm_call_opt_struct_aset0(ec, calling, argv[0]);
+            VM_CALL_METHOD_ATTR(ret,
+                                vm_call_opt_struct_aset0(ec, calling, argv[0]),
+                                (void)0);
             goto success;
           default:
             rb_bug("vm_call0: unsupported optimized method type (%d)", vm_cc_cme(cc)->def->body.optimized.type);