diff options
Diffstat (limited to 'core/module-list.c')
| -rw-r--r-- | core/module-list.c | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/core/module-list.c b/core/module-list.c index c965c6d..db79802 100644 --- a/core/module-list.c +++ b/core/module-list.c @@ -1506,6 +1506,19 @@ void pure_list_clear(PureList *list) { (void)members_start(list); } +bool pure_list_full(PureList *list) { return list->form == DENSE && list->count && dense_keys(list) && list->full; } + +bool pure_list_suits(PureList *list, unsigned needs, unsigned narrow) { + if (list->form == DENSE && !dense_keys(list)) return false; /* its keys counted: full as it is (the tier reads it, LIST_FULL_AT) */ + if (needs & 1 && list->form != DENSE) return false; /* by key: at its keys */ + if (needs & 2 && list->form != FLAT && !(list->form == DENSE && dense_keys(list) && list->full)) return false; /* by position */ + if (needs & 4 && !(list->form == DENSE && dense_keys(list) && list->full)) return false; /* a key its position */ + if (list->form != FLAT && list->form != DENSE) return false; + for (unsigned f = 0; f < list->layout.fields; ++f) + if (narrow >> f & 1 && list->width[f] != 1 && list->width[f] != 4) return false; + return true; +} + bool pure_list_hashed(PureList *list) { const Layout *l = &list->layout; if (list->members) return true; @@ -1560,7 +1573,7 @@ const size_t pure_list_layout[] = { [LIST_FORM_AT] = offsetof(PureList, form), [LIST_COLUMNS_AT] = offsetof(PureList, columns), [LIST_VERSION_AT] = offsetof(PureList, version), [LIST_ROOM_AT] = offsetof(PureList, room), [LIST_MEMBER_COUNT_AT] = offsetof(PureList, member_count), [LIST_BYTES_AT] = offsetof(PureList, bytes), - [LIST_PACK_AT] = offsetof(PureList, pack), [LIST_WIDTH_AT] = offsetof(PureList, width)}; + [LIST_PACK_AT] = offsetof(PureList, pack), [LIST_WIDTH_AT] = offsetof(PureList, width), [LIST_FULL_AT] = offsetof(PureList, full)}; const size_t pure_pack_layout[] = { [PACK_FIRST_AT] = offsetof(Pack, first), [PACK_WHOLE_AT] = offsetof(Pack, whole), [PACK_SHIFT_AT] = offsetof(Pack, shift), |