diff options
Diffstat (limited to 'include/ruby/internal/core/rarray.h')
| -rw-r--r-- | include/ruby/internal/core/rarray.h | 21 |
1 files changed, 20 insertions, 1 deletions
diff --git a/include/ruby/internal/core/rarray.h b/include/ruby/internal/core/rarray.h index 9f1d0509ea..d9e08839cb 100644 --- a/include/ruby/internal/core/rarray.h +++ b/include/ruby/internal/core/rarray.h @@ -130,7 +130,13 @@ enum ruby_rarray_flags { * 3rd parties must not be aware that there even is more than one way to * store array elements. It was a bad idea to expose this to them. */ +#if USE_RVARGC + RARRAY_EMBED_LEN_MASK = RUBY_FL_USER8 | RUBY_FL_USER7 | RUBY_FL_USER6 | + RUBY_FL_USER5 | RUBY_FL_USER4 | RUBY_FL_USER3 +#else RARRAY_EMBED_LEN_MASK = RUBY_FL_USER4 | RUBY_FL_USER3 +#endif + #if USE_TRANSIENT_HEAP , @@ -156,10 +162,14 @@ enum ruby_rarray_flags { */ enum ruby_rarray_consts { /** Where ::RARRAY_EMBED_LEN_MASK resides. */ - RARRAY_EMBED_LEN_SHIFT = RUBY_FL_USHIFT + 3, + RARRAY_EMBED_LEN_SHIFT = RUBY_FL_USHIFT + 3 + +#if !USE_RVARGC + , /** Max possible number elements that can be embedded. */ RARRAY_EMBED_LEN_MAX = RBIMPL_EMBED_LEN_MAX_OF(VALUE) +#endif }; /** Ruby's array. */ @@ -218,7 +228,16 @@ struct RArray { * to store its elements. In this case the length is encoded into the * flags. */ +#if USE_RVARGC + /* This is a length 1 array because: + * 1. GCC has a bug that does not optimize C flexible array members + * (https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102452) + * 2. Zero length arrays are not supported by all compilers + */ + const VALUE ary[1]; +#else const VALUE ary[RARRAY_EMBED_LEN_MAX]; +#endif } as; }; |