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* enumerator.c (lazy_zip): raise error for bad arguments

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[Bug #7706]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@38926 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
marcandre 2013-01-24 07:50:33 +00:00
parent 1af390b1ea
commit aab2f788d7
3 changed files with 16 additions and 0 deletions
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5
ChangeLog
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@ -1,3 +1,8 @@
Thu Jan 24 16:47:26 2013 Marc-Andre Lafortune <ruby-core@marc-andre.ca>
* enumerator.c (lazy_zip): raise error for bad arguments
[Bug #7706]
Thu Jan 24 16:05:08 2013 Marc-Andre Lafortune <ruby-core@marc-andre.ca>
* enumerator.c: Optimize Lazy#zip when passed only arrays

6
enumerator.c
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@ -1663,6 +1663,12 @@ lazy_zip(int argc, VALUE *argv, VALUE obj)
for (i = 0; i < argc; i++) {
v = rb_check_array_type(argv[i]);
if (NIL_P(v)) {
for (; i < argc; i++) {
if (!rb_respond_to(argv[i], id_each)) {
rb_raise(rb_eTypeError, "wrong argument type %s (must respond to :each)",
rb_obj_classname(argv[i]));
}
}
ary = rb_ary_new4(argc, argv);
func = lazy_zip_func;
break;

5
test/ruby/test_lazy_enumerator.rb
View File

@ -213,6 +213,11 @@ class TestLazyEnumerator < Test::Unit::TestCase
assert_equal(1, a.current)
end
def test_zip_bad_arg
a = Step.new(1..3)
assert_raise(TypeError){ a.lazy.zip(42) }
end
def test_zip_with_block
# zip should be eager when a block is given
a = Step.new(1..3)