rb_define_hooked_variable now free from ANYARGS

After 5e86b005c0f2ef30df2f9906c7e2f3abefe286a2, I now think ANYARGS is
dangerous and should be extinct.  This commit uses rb_gvar_getter_t /
rb_gvar_setter_t for rb_define_hooked_variable /
rb_define_virtual_variable which revealed lots of function prototype
inconsistencies.  Some of them were literally decades old, going back
to dda5dc00cff334cac373096d444a0fd59e716124.

1 files changed, 14 insertions, 2 deletions

diff --git a/process.c b/process.c
index 8cd42db802..dad090712c 100644
--- a/process.c
+++ b/process.c
@@ -8038,6 +8038,18 @@ rb_clock_getres(int argc, VALUE *argv)
     }
 }
 
+static VALUE
+get_$CHILD_STATUS(ID _x, VALUE *_y)
+{
+    return rb_last_status_get();
+}
+
+static VALUE
+get_$PROCESS_ID(ID _x, VALUE *_y)
+{
+    return get_pid();
+}
+
 VALUE rb_mProcess;
 static VALUE rb_mProcUID;
 static VALUE rb_mProcGID;
@@ -8054,8 +8066,8 @@ InitVM_process(void)
 {
 #undef rb_intern
 #define rb_intern(str) rb_intern_const(str)
-    rb_define_virtual_variable("$?", rb_last_status_get, 0);
-    rb_define_virtual_variable("$$", get_pid, 0);
+    rb_define_virtual_variable("$?", get_$CHILD_STATUS, 0);
+    rb_define_virtual_variable("$$", get_$PROCESS_ID, 0);
     rb_define_global_function("exec", rb_f_exec, -1);
     rb_define_global_function("fork", rb_f_fork, 0);
     rb_define_global_function("exit!", rb_f_exit_bang, -1);