diff options
author | ko1 <ko1@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2008-10-10 19:19:36 +0000 |
---|---|---|
committer | ko1 <ko1@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2008-10-10 19:19:36 +0000 |
commit | 3f710785f0508d93795b316b78dc24987cf47370 (patch) | |
tree | c4bfaeb462fc57b54f0d43d09a914bab27b76400 /parse.y | |
parent | 254937c873d5f273519056f80ea3b1dfd0812e95 (diff) |
* parse.y: optimize 'for' statement when one variable given.
* benchmark/bm_loop_for.rb: added.
* benchmark/bm_loop_times.rb: modified.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@19753 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'parse.y')
-rw-r--r-- | parse.y | 23 |
1 files changed, 17 insertions, 6 deletions
@@ -2772,16 +2772,27 @@ primary : literal NEW_CALL(NEW_CALL(NEW_DVAR(id), rb_intern("[]"), zero), rb_intern("kind_of?"), NEW_LIST(NEW_LIT(rb_cArray))), 0), - NEW_DASGN_CURR(id, - NEW_CALL(NEW_DVAR(id), rb_intern("[]"), zero)), - 0), + NEW_DASGN_CURR(id, + NEW_CALL(NEW_DVAR(id), rb_intern("[]"), zero)), + 0), node_assign($2, NEW_DVAR(id))); + + args = new_args(m, 0, id, 0, 0); } else { - m->nd_next = node_assign(NEW_MASGN(NEW_LIST($2), 0), NEW_DVAR(id)); + if (nd_type($2) == NODE_LASGN || + nd_type($2) == NODE_DASGN || + nd_type($2) == NODE_DASGN_CURR) { + $2->nd_value = NEW_DVAR(id); + m->nd_plen = 1; + m->nd_next = $2; + args = new_args(m, 0, 0, 0, 0); + } + else { + m->nd_next = node_assign(NEW_MASGN(NEW_LIST($2), 0), NEW_DVAR(id)); + args = new_args(m, 0, id, 0, 0); + } } - - args = new_args(m, 0, id, 0, 0); scope = NEW_NODE(NODE_SCOPE, tbl, $8, args); tbl[0] = 1; tbl[1] = id; $$ = NEW_FOR(0, $5, scope); |