Trie compression. Hash table iteration.

Bugfix in typeof.

* filter.c (trie_compress): New function.
(trie_value_at, trie_lookup_feed_char, filter_string): Handle cons cell
nodes in trie.
(build_filter): Call trie_compress.

* gc.c (cobj_destroy_op): Function renamed to cobj_destroy_stub_op
since it doesn't do anything.
(cobj_destroy_free_op): New function.
* hash.c (struct hash_iter): New type.
(hash_destroy): Function removed.
(hash_ops): Reference to hash_destroy replaced with
cobj_destroy_free_op.
(hash_count, hash_iter_mark, hash_begin, hash_next): New functions.
(hash_iter_ops): New static structure.
* hash.h (hash_count, hash_begin, hash_next): New functions declared.
* lib.c (hash_iter_s): New symbol variable.
(typeof): Bugfix: TAG_LIT type tag not handled.
(vecref): New function.
(obj_init): Initialize hash_iter_s.
* lib.h (cobj_destroy_op): Declaration renamed.
(cobj_destroy_free_op, vecref): New functions declared.
(hash_iter_s): New variable declared.
* stream.c (string_in_ops, byte_in_ops): cobj_destroy_op
renamed to cobj_destroy_stub_op.

1 files changed, 3 insertions, 0 deletions

diff --git a/hash.h b/hash.h
index b5bd200a..2a99278c 100644
--- a/hash.h
+++ b/hash.h
@@ -31,9 +31,12 @@ val gethash(val hash, val key);
 val gethash_f(val hash, val key, val *found);
 val sethash(val hash, val key, val value);
 val remhash(val hash, val key);
+val hash_count(val hash);
 val get_hash_userdata(val hash);
 val set_hash_userdata(val hash, val data);
 val hashp(val obj);
+val hash_begin(val hash);
+val hash_next(val *iter);
 void hash_process_weak(void);
 
 void hash_init(void);