diff options
author | nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2012-03-31 05:16:04 +0000 |
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committer | nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2012-03-31 05:16:04 +0000 |
commit | e8a1874c198dcb0c84bef4d783fbc6bfc025cd04 (patch) | |
tree | 36c7ab6b2944f7137ed23d0ad63762258dabea0a /hash.c | |
parent | 5f81a53fd2939c8618b4ba3e01052333e584ba56 (diff) |
* hash.c: do not allocate st_table when it is not necessary.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@35195 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'hash.c')
-rw-r--r-- | hash.c | 40 |
1 files changed, 22 insertions, 18 deletions
@@ -649,7 +649,7 @@ rb_hash_default(int argc, VALUE *argv, VALUE hash) static VALUE rb_hash_set_default(VALUE hash, VALUE ifnone) { - rb_hash_modify(hash); + rb_hash_modify_check(hash); RHASH_IFNONE(hash) = ifnone; FL_UNSET(hash, HASH_PROC_DEFAULT); return ifnone; @@ -697,7 +697,7 @@ rb_hash_set_default_proc(VALUE hash, VALUE proc) { VALUE b; - rb_hash_modify(hash); + rb_hash_modify_check(hash); b = rb_check_convert_type(proc, T_DATA, "Proc", "to_proc"); if (NIL_P(b) || !rb_obj_is_proc(b)) { rb_raise(rb_eTypeError, @@ -799,7 +799,7 @@ rb_hash_delete(VALUE hash, VALUE key) { VALUE val; - rb_hash_modify(hash); + rb_hash_modify_check(hash); val = rb_hash_delete_key(hash, key); if (val != Qundef) return val; if (rb_block_given_p()) { @@ -852,18 +852,20 @@ rb_hash_shift(VALUE hash) { struct shift_var var; - rb_hash_modify(hash); - var.key = Qundef; - rb_hash_foreach(hash, RHASH(hash)->iter_lev > 0 ? shift_i_safe : shift_i, - (VALUE)&var); - - if (var.key != Qundef) { - if (RHASH(hash)->iter_lev > 0) { - rb_hash_delete_key(hash, var.key); + rb_hash_modify_check(hash); + if (RHASH(hash)->ntbl) { + var.key = Qundef; + rb_hash_foreach(hash, RHASH(hash)->iter_lev > 0 ? shift_i_safe : shift_i, + (VALUE)&var); + + if (var.key != Qundef) { + if (RHASH(hash)->iter_lev > 0) { + rb_hash_delete_key(hash, var.key); + } + return rb_assoc_new(var.key, var.val); } - return rb_assoc_new(var.key, var.val); } - else if (FL_TEST(hash, HASH_PROC_DEFAULT)) { + if (FL_TEST(hash, HASH_PROC_DEFAULT)) { return rb_funcall(RHASH_IFNONE(hash), id_yield, 2, hash, Qnil); } else { @@ -899,8 +901,9 @@ VALUE rb_hash_delete_if(VALUE hash) { RETURN_ENUMERATOR(hash, 0, 0); - rb_hash_modify(hash); - rb_hash_foreach(hash, delete_if_i, hash); + rb_hash_modify_check(hash); + if (RHASH(hash)->ntbl) + rb_hash_foreach(hash, delete_if_i, hash); return hash; } @@ -1025,7 +1028,7 @@ rb_hash_select_bang(VALUE hash) st_index_t n; RETURN_ENUMERATOR(hash, 0, 0); - rb_hash_modify(hash); + rb_hash_modify_check(hash); if (!RHASH(hash)->ntbl) return Qnil; n = RHASH(hash)->ntbl->num_entries; @@ -1050,8 +1053,9 @@ VALUE rb_hash_keep_if(VALUE hash) { RETURN_ENUMERATOR(hash, 0, 0); - rb_hash_modify(hash); - rb_hash_foreach(hash, keep_if_i, hash); + rb_hash_modify_check(hash); + if (RHASH(hash)->ntbl) + rb_hash_foreach(hash, keep_if_i, hash); return hash; } |