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parse.y: Refactor for-statement generation

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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@61879 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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mame 2018-01-16 15:12:15 +00:00
parent 0160006b59
commit f8a0c7d629
1 changed files with 14 additions and 18 deletions
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32
parse.y
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@ -2563,34 +2563,30 @@ primary : literal
* e.each{|x| a, = x}
*/
ID id = internal_id(p);
ID *tbl = ALLOC_N(ID, 2);
NODE *m = NEW_ARGS_AUX(0, 0, &NULL_LOC);
NODE *args, *scope;
NODE *args, *scope, *internal_var = NEW_DVAR(id, &@2);
ID *tbl = ALLOC_N(ID, 2);
tbl[0] = 1 /* length of local var table */; tbl[1] = id /* internal id */;
add_mark_object(p, (VALUE)rb_imemo_alloc_new((VALUE)tbl, 0, 0, 0));
switch (nd_type($2)) {
case NODE_MASGN:
m->nd_next = node_assign(p, $2, NEW_FOR_MASGN(NEW_DVAR(id, &@2), &@2), &@2);
args = new_args(p, m, 0, id, 0, new_args_tail(p, 0, 0, 0, &@2), &@2);
break;
case NODE_LASGN:
case NODE_DASGN:
case NODE_DASGN_CURR:
$2->nd_value = NEW_DVAR(id, &@2);
case NODE_DASGN_CURR: /* e.each {|internal_var| a = internal_var; ... } */
$2->nd_value = internal_var;
id = 0;
m->nd_plen = 1;
m->nd_next = $2;
args = new_args(p, m, 0, 0, 0, new_args_tail(p, 0, 0, 0, &@2), &@2);
break;
default:
{
NODE *masgn = NEW_MASGN(NEW_LIST($2, &@2), 0, &@2);
m->nd_next = node_assign(p, masgn, NEW_DVAR(id, &@2), &@2);
args = new_args(p, m, 0, id, 0, new_args_tail(p, 0, 0, 0, &@2), &@2);
break;
}
case NODE_MASGN: /* e.each {|*internal_var| a, b, c = (internal_var.length == 1 && Array === (tmp = internal_var[0]) ? tmp : internal_var); ... } */
m->nd_next = node_assign(p, $2, NEW_FOR_MASGN(internal_var, &@2), &@2);
break;
default: /* e.each {|*internal_var| @a, B, c[1], d.attr = internal_val; ... } */
m->nd_next = node_assign(p, NEW_MASGN(NEW_LIST($2, &@2), 0, &@2), internal_var, &@2);
}
add_mark_object(p, (VALUE)rb_imemo_alloc_new((VALUE)tbl, 0, 0, 0));
/* {|*internal_id| <m> = internal_id; ... } */
args = new_args(p, m, 0, id, 0, new_args_tail(p, 0, 0, 0, &@2), &@2);
scope = NEW_NODE(NODE_SCOPE, tbl, $5, args, &@$);
tbl[0] = 1; tbl[1] = id;
$$ = NEW_FOR($4, scope, &@$);
fixpos($$, $2);
/*%