diff options
Diffstat (limited to 'includes')
| -rw-r--r-- | includes/rts/storage/Closures.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/includes/rts/storage/Closures.h b/includes/rts/storage/Closures.h index b2b5eda407..81b6fd1fe1 100644 --- a/includes/rts/storage/Closures.h +++ b/includes/rts/storage/Closures.h @@ -104,6 +104,12 @@ typedef struct { StgClosure *selectee; } StgSelector; +/* + PAP payload contains pointers and non-pointers interleaved and we only have + one info table for PAPs (stg_PAP_info). To visit pointers in a PAP payload we + use the `fun`s bitmap. For a PAP with n_args arguments the first n_args bits + in the fun's bitmap tell us which payload locations contain pointers. +*/ typedef struct { StgHeader header; StgHalfWord arity; /* zero if it is an AP */ |