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| author | Jemma Issroff <jemmaissroff@gmail.com> | 2022-11-08 15:35:31 -0500 |
|---|---|---|
| committer | Peter Zhu <peter@peterzhu.ca> | 2022-11-10 10:11:34 -0500 |
| commit | 5246f4027ec574e77809845e1b1f7822cc2a5cef (patch) | |
| tree | a29c972df6a589c7ab8c2541ea2eea1f7caf5f70 /internal/class.h | |
| parent | 9986697b621e5345177a1c395489dcc9fab8602b (diff) | |
| download | ruby-5246f4027ec574e77809845e1b1f7822cc2a5cef.tar.gz | |
Transition shape when object's capacity changes
This commit adds a `capacity` field to shapes, and adds shape
transitions whenever an object's capacity changes. Objects which are
allocated out of a bigger size pool will also make a transition from the
root shape to the shape with the correct capacity for their size pool
when they are allocated.
This commit will allow us to remove numiv from objects completely, and
will also mean we can guarantee that if two objects share shapes, their
IVs are in the same positions (an embedded and extended object cannot
share shapes). This will enable us to implement ivar sets in YJIT using
object shapes.
Co-Authored-By: Aaron Patterson <tenderlove@ruby-lang.org>
Diffstat (limited to 'internal/class.h')
| -rw-r--r-- | internal/class.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/internal/class.h b/internal/class.h index 784d508e20..8080725634 100644 --- a/internal/class.h +++ b/internal/class.h @@ -62,7 +62,7 @@ struct RClass { struct RBasic basic; VALUE super; struct rb_id_table *m_tbl; -#if !USE_RVARGC +#if SIZE_POOL_COUNT == 1 struct rb_classext_struct *ptr; #endif }; @@ -70,7 +70,7 @@ struct RClass { typedef struct rb_subclass_entry rb_subclass_entry_t; typedef struct rb_classext_struct rb_classext_t; -#if USE_RVARGC +#if RCLASS_EXT_EMBEDDED # define RCLASS_EXT(c) ((rb_classext_t *)((char *)(c) + sizeof(struct RClass))) #else # define RCLASS_EXT(c) (RCLASS(c)->ptr) |