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, 10 insertions, 4 deletions

diff --git a/mrbgems/mruby-proc-ext/test/proc.c b/mrbgems/mruby-proc-ext/test/proc.c
index a77b68e9d..7072fe2e9 100644
--- a/mrbgems/mruby-proc-ext/test/proc.c
+++ b/mrbgems/mruby-proc-ext/test/proc.c
@@ -13,10 +13,13 @@ proc_new_cfunc_with_env(mrb_state *mrb, mrb_value self)
 {
   mrb_sym n;
   mrb_value n_val;
+  mrb_method_t m;
+  struct RProc *p;
   mrb_get_args(mrb, "n", &n);
   n_val = mrb_symbol_value(n);
-  mrb_define_method_raw(mrb, mrb_class_ptr(self), n,
-                        mrb_proc_new_cfunc_with_env(mrb, return_func_name, 1, &n_val));
+  p = mrb_proc_new_cfunc_with_env(mrb, return_func_name, 1, &n_val);
+  MRB_METHOD_FROM_PROC(m, p);
+  mrb_define_method_raw(mrb, mrb_class_ptr(self), n, m);
   return self;
 }
 
@@ -33,9 +36,12 @@ cfunc_env_get(mrb_state *mrb, mrb_value self)
 {
   mrb_sym n;
   mrb_value *argv; mrb_int argc;
+  mrb_method_t m;
+  struct RProc *p;
   mrb_get_args(mrb, "na", &n, &argv, &argc);
-  mrb_define_method_raw(mrb, mrb_class_ptr(self), n,
-                        mrb_proc_new_cfunc_with_env(mrb, return_env, argc, argv));
+  p = mrb_proc_new_cfunc_with_env(mrb, return_env, argc, argv);
+  MRB_METHOD_FROM_PROC(m, p);
+  mrb_define_method_raw(mrb, mrb_class_ptr(self), n, m);
   return self;
 }