kotovalexarian-likes-github/ruby--ruby
1
0
Fork 0
mirror of https://github.com/ruby/ruby.git synced 2022-11-09 12:17:21 -05:00
Code Releases Activity

Raise NoMatchingPatternError when expr in pat doesn't match

Browse source 
* `expr in pattern` should raise `NoMatchingError` when unmatched
* `expr in pattern` should return `nil`. (this is unspecified, but
  this feature is experimental, at all)

[Feature #16355]
This commit is contained in:
Nobuyoshi Nakada 2019-11-28 13:44:25 +09:00
parent 18953416de
commit 8b4ee5d6ba
No known key found for this signature in database
GPG key ID: 4BC7D6DF58D8DF60
2 changed files with 5 additions and 2 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
parse.y
View file

@ -1571,7 +1571,7 @@ expr : command_call
{ {
p->in_kwarg = !!$<num>3; p->in_kwarg = !!$<num>3;
/*%%%*/ /*%%%*/
$$ = NEW_CASE3($1, NEW_IN($5, NEW_TRUE(&@5), NEW_FALSE(&@5), &@5), &@$); $$ = NEW_CASE3($1, NEW_IN($5, 0, 0, &@5), &@$);
rb_warn0L(nd_line($$), "Pattern matching is experimental, and the behavior may change in future versions of Ruby!"); rb_warn0L(nd_line($$), "Pattern matching is experimental, and the behavior may change in future versions of Ruby!");
/*% %*/ /*% %*/
/*% ripper: case!($1, in!($5, Qnil, Qnil)) %*/ /*% ripper: case!($1, in!($5, Qnil, Qnil)) %*/

5
test/ruby/test_pattern_matching.rb
View file

@ -1261,8 +1261,11 @@ END
################################################################ ################################################################
def test_modifier_in def test_modifier_in
assert_equal true, (1 in a) assert_nil (1 in a)
assert_equal 1, a assert_equal 1, a
assert_raise(NoMatchingPatternError) do
{a: 1} in {a: 0}
end
assert_valid_syntax "p(({} in {a:}), a:\n 1)" assert_valid_syntax "p(({} in {a:}), a:\n 1)"
assert_syntax_error(%q{ assert_syntax_error(%q{
1 in a, b 1 in a, b