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Reorganize mrb_cache_entry and mrb_method_t types

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The purpose is to remove the `mid` field from the `mrb_cache_entry` structure.
The resulting RAM requirement for the method cache is reduced from 5 words per entry to 4 words per entry for 32-bit CPUs.

The relevant changes are as follows:

  - Removed `MRB_USE_METHOD_T_STRUCT`.

    The `mrb_method_t` type is now always defined as a structure.

  - Include method IDs in `mrb_method_t`

    Change the `flags` member to `uint32_t`.
    The bitstring structure should be the same as the keys of the `mt` table in `class.c`.

I believe the impact on API compatibility with previous versions is minimal.
This commit is contained in:
dearblue
2024-03-30 18:19:26 +09:00
parent 61b1a4db8e
commit 328eb71e52
5 changed files with 9 additions and 59 deletions
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include/mruby/proc.h
-16
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@@ -106,20 +106,6 @@ MRB_API mrb_value mrb_proc_cfunc_env_get(mrb_state *mrb, mrb_int idx);
#define MRB_METHOD_FUNC_FL 1
#define MRB_METHOD_NOARG_FL 2
#ifndef MRB_USE_METHOD_T_STRUCT
#define MRB_METHOD_FUNC_P(m) (((uintptr_t)(m))&MRB_METHOD_FUNC_FL)
#define MRB_METHOD_NOARG_P(m) ((((uintptr_t)(m))&MRB_METHOD_NOARG_FL)?1:0)
#define MRB_METHOD_NOARG_SET(m) ((m)=(mrb_method_t)(((uintptr_t)(m))|MRB_METHOD_NOARG_FL))
#define MRB_METHOD_FUNC(m) ((mrb_func_t)((uintptr_t)(m)>>2))
#define MRB_METHOD_FROM_FUNC(m,fn) ((m)=(mrb_method_t)((((uintptr_t)(fn))<<2)|MRB_METHOD_FUNC_FL))
#define MRB_METHOD_FROM_PROC(m,pr) ((m)=(mrb_method_t)(pr))
#define MRB_METHOD_PROC_P(m) (!MRB_METHOD_FUNC_P(m))
#define MRB_METHOD_PROC(m) ((struct RProc*)(m))
#define MRB_METHOD_UNDEF_P(m) ((m)==0)
#else
#define MRB_METHOD_FUNC_P(m) ((m).flags&MRB_METHOD_FUNC_FL)
#define MRB_METHOD_NOARG_P(m) (((m).flags&MRB_METHOD_NOARG_FL)?1:0)
#define MRB_METHOD_FUNC(m) ((m).func)
@@ -130,8 +116,6 @@ MRB_API mrb_value mrb_proc_cfunc_env_get(mrb_state *mrb, mrb_int idx);
#define MRB_METHOD_PROC(m) ((m).proc)
#define MRB_METHOD_UNDEF_P(m) ((m).proc==NULL)
#endif /* MRB_USE_METHOD_T_STRUCT */
#define MRB_METHOD_CFUNC_P(m) (MRB_METHOD_FUNC_P(m)?TRUE:(MRB_METHOD_PROC(m)?(MRB_PROC_CFUNC_P(MRB_METHOD_PROC(m))):FALSE))
#define MRB_METHOD_CFUNC(m) (MRB_METHOD_FUNC_P(m)?MRB_METHOD_FUNC(m):((MRB_METHOD_PROC(m)&&MRB_PROC_CFUNC_P(MRB_METHOD_PROC(m)))?MRB_PROC_CFUNC(MRB_METHOD_PROC(m)):NULL))