archive/ruby
1
0
Fork 0
mirror of https://github.com/ruby/ruby.git synced 2025-08-28 07:26:00 +02:00
Code Issues Projects Releases Packages Wiki Activity Actions 11

register_fstring: avoid duping the passed string when possible

Browse source 
If the passed string is frozen, bare and not shared, then there
is no need to duplicate it.

Ref: 4ab69ebbd7
Ref: https://bugs.ruby-lang.org/issues/11386
This commit is contained in:
Jean Boussier 2020-08-19 11:29:54 +02:00 • committed by Aaron Patterson
parent 7f0ea20581
commit aaf0e33c0a
Notes: git 2020-08-20 00:09:32 +09:00
2 changed files with 18 additions and 1 deletions
Download patch file Download diff file Expand all files Collapse all files

16
test/ruby/test_string.rb
View file

@ -3187,6 +3187,22 @@ CODE
assert_same(str, -bar, "uminus deduplicates [Feature #13077]")
end
def test_uminus_frozen
# embedded
str1 = ("foobar" * 3).freeze
str2 = ("foobar" * 3).freeze
assert_not_same str1, str2
assert_same str1, -str1
assert_same str1, -str2
# regular
str1 = ("foobar" * 4).freeze
str2 = ("foobar" * 4).freeze
assert_not_same str1, str2
assert_same str1, -str1
assert_same str1, -str2
end
def test_uminus_no_freeze_not_bare
str = @cls.new("foo")
assert_instance_of(@cls, -str)