diff options
Diffstat (limited to 'tree.c')
-rw-r--r-- | tree.c | 24 |
1 files changed, 24 insertions, 0 deletions
@@ -119,6 +119,27 @@ val key(val node) return node->tn.key; } +val set_left(val node, val nleft) +{ + type_check(lit("set-left"), node, TNOD); + node->tn.left = nleft; + return node; +} + +val set_right(val node, val nright) +{ + type_check(lit("set-right"), node, TNOD); + node->tn.right = nright; + return node; +} + +val set_key(val node, val nkey) +{ + type_check(lit("set-key"), node, TNOD); + node->tn.key = nkey; + return node; +} + val copy_tnode(val node) { val obj = (type_check(lit("copy-tnode"), node, TNOD), make_obj()); @@ -684,6 +705,9 @@ void tree_init(void) reg_fun(intern(lit("left"), user_package), func_n1(left)); reg_fun(intern(lit("right"), user_package), func_n1(right)); reg_fun(intern(lit("key"), user_package), func_n1(key)); + reg_fun(intern(lit("set-left"), user_package), func_n2(set_left)); + reg_fun(intern(lit("set-right"), user_package), func_n2(set_right)); + reg_fun(intern(lit("set-key"), user_package), func_n2(set_key)); reg_fun(intern(lit("copy-tnode"), user_package), func_n1(copy_tnode)); reg_fun(tree_s, func_n4o(tree, 0)); reg_fun(tree_construct_s, func_n2(tree_construct)); |