X-Git-Url: http://repo.macrolet.net/gitweb/?a=blobdiff_plain;f=src%2Fcode%2Fhash-table.lisp;h=c352a17a7f819b4df7819988b70b97130d0fbbcb;hb=4eb1a6d3ad2b7dcc19ac0ec979a1eb1eb049659a;hp=b82a58580837c11e4a20c2da01b060b25a9beec2;hpb=4a4f1e5ca70363d64d7cbb141863a387334e6760;p=sbcl.git diff --git a/src/code/hash-table.lisp b/src/code/hash-table.lisp index b82a585..c352a17 100644 --- a/src/code/hash-table.lisp +++ b/src/code/hash-table.lisp @@ -16,30 +16,29 @@ (sb!xc:defstruct (hash-table (:constructor %make-hash-table)) ;; The type of hash table this is. Only used for printing and as ;; part of the exported interface. - (test (required-argument) :type symbol :read-only t) + (test (missing-arg) :type symbol :read-only t) ;; The function used to compare two keys. Returns T if they are the ;; same and NIL if not. - (test-fun (required-argument) :type function :read-only t) + (test-fun (missing-arg) :type function :read-only t) ;; The function used to compute the hashing of a key. Returns two ;; values: the index hashing and T if that might change with the ;; next GC. - (hash-fun (required-argument) :type function :read-only t) + (hash-fun (missing-arg) :type function :read-only t) ;; how much to grow the hash table by when it fills up. If an index, ;; then add that amount. If a floating point number, then multiply ;; it by that. - (rehash-size (required-argument) :type (or index (single-float (1.0))) + (rehash-size (missing-arg) :type (or index (single-float (1.0))) :read-only t) ;; how full the hash table has to get before we rehash - (rehash-threshold (required-argument) :type (single-float (0.0) 1.0) - :read-only t) + (rehash-threshold (missing-arg) :type (single-float (0.0) 1.0) :read-only t) ;; The number of entries before a rehash, just one less than the ;; size of the next-vector, hash-vector, and half the size of the ;; kv-vector. - (rehash-trigger (required-argument) :type index) + (rehash-trigger (missing-arg) :type index) ;; The current number of entries in the table. (number-entries 0 :type index) ;; The Key-Value pair vector. - (table (required-argument) :type simple-vector) + (table (missing-arg) :type simple-vector) ;; True if this is a weak hash table, meaning that key->value ;; mappings will disappear if there are no other references to the ;; key. Note: this only matters if the hash function indicates that @@ -54,12 +53,11 @@ (next-free-kv 0 :type index) ;; The index vector. This may be larger than the hash size to help ;; reduce collisions. - (index-vector (required-argument) - :type (simple-array (unsigned-byte 32) (*))) + (index-vector (missing-arg) :type (simple-array (unsigned-byte 32) (*))) ;; This table parallels the KV vector, and is used to chain together ;; the hash buckets, the free list, and the values needing rehash, a ;; slot will only ever be in one of these lists. - (next-vector (required-argument) :type (simple-array (unsigned-byte 32) (*))) + (next-vector (missing-arg) :type (simple-array (unsigned-byte 32) (*))) ;; This table parallels the KV table, and can be used to store the ;; hash associated with the key, saving recalculation. Could be ;; useful for EQL, and EQUAL hash tables. This table is not needed