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array.c: reduce to_ary call

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* array.c (flatten): no need to call to_ary method on elements
  beyond the given level.  [ruby-core:67637] [Bug #10748]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@49400 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
nobu 2015-01-25 03:04:10 +00:00
parent 7d87d0c466
commit aa436bdca6
4 changed files with 39 additions and 1 deletions
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6
array.c
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@ -4387,11 +4387,15 @@ flatten(VALUE ary, int level, int *modified)
while (1) {
while (i < RARRAY_LEN(ary)) {
elt = RARRAY_AREF(ary, i++);
if (level >= 0 && RARRAY_LEN(stack) / 2 >= level) {
rb_ary_push(result, elt);
continue;
}
tmp = rb_check_array_type(elt);
if (RBASIC(result)->klass) {
rb_raise(rb_eRuntimeError, "flatten reentered");
}
if (NIL_P(tmp) || (level >= 0 && RARRAY_LEN(stack) / 2 >= level)) {
if (NIL_P(tmp)) {
rb_ary_push(result, elt);
}
else {