Add `MRB_METHOD_TABLE_INLINE` option.

Now the method tables (in classes/modules and caches) keeps C function
pointers without wrapping in `struct RProc` objects. For the sake of
portability, `mrb_method_t` is represented by the struct and union, but
if the most significant bit of the pointer is not used by the platform,
`mrb_method_t` should be packed in `uintptr_t` to reduce memory usage.

`MRB_METHOD_TABLE_INLINE` is turned on by default for linux.

1 files changed, 5 insertions, 2 deletions

diff --git a/mrbgems/mruby-struct/src/struct.c b/mrbgems/mruby-struct/src/struct.c
index 1d2e62583..8de4b6c52 100644
--- a/mrbgems/mruby-struct/src/struct.c
+++ b/mrbgems/mruby-struct/src/struct.c
@@ -189,11 +189,14 @@ make_struct_define_accessors(mrb_state *mrb, mrb_value members, struct RClass *c
     const char *name = mrb_sym2name_len(mrb, id, NULL);
 
     if (is_local_id(mrb, name) || is_const_id(mrb, name)) {
+      mrb_method_t m;
       mrb_value at = mrb_fixnum_value(i);
       struct RProc *aref = mrb_proc_new_cfunc_with_env(mrb, mrb_struct_ref, 1, &at);
       struct RProc *aset = mrb_proc_new_cfunc_with_env(mrb, mrb_struct_set_m, 1, &at);
-      mrb_define_method_raw(mrb, c, id, aref);
-      mrb_define_method_raw(mrb, c, mrb_id_attrset(mrb, id), aset);
+      MRB_METHOD_FROM_PROC(m, aref);
+      mrb_define_method_raw(mrb, c, id, m);
+      MRB_METHOD_FROM_PROC(m, aset);
+      mrb_define_method_raw(mrb, c, mrb_id_attrset(mrb, id), m);
       mrb_gc_arena_restore(mrb, ai);
     }
   }