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Added Symbol#name

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https://bugs.ruby-lang.org/issues/16150#change-87446
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Nobuyoshi Nakada 2020-09-04 22:18:59 +09:00 • committed by GitHub
parent d7406ccc2c
commit eb67c603ca
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Notes: git 2020-09-04 22:19:24 +09:00 
Merged: https://github.com/ruby/ruby/pull/3514

Merged-By: nobu <nobu@ruby-lang.org>
3 changed files with 14 additions and 0 deletions
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7
NEWS.md
View file

@ -165,6 +165,12 @@ Outstanding ones only.
* Symbol#to_proc now returns a lambda Proc.
[[Feature #16260]]
* New method
* Symbol#name, which returns the name of the symbol if it is
named. The returned string cannot be modified.
[[Feature #16150]]
* Warning
* Modified method
@ -343,6 +349,7 @@ Excluding feature bug fixes.
[Feature #16378]: https://bugs.ruby-lang.org/issues/16378
[Feature #16828]: https://bugs.ruby-lang.org/issues/16828
[Bug #14541]: https://bugs.ruby-lang.org/issues/14541
[Feature #16150]: https://bugs.ruby-lang.org/issues/16150
[Feature #16175]: https://bugs.ruby-lang.org/issues/16175
[Feature #15973]: https://bugs.ruby-lang.org/issues/15973
[Feature #16614]: https://bugs.ruby-lang.org/issues/16614

1
string.c
View file

@ -11539,6 +11539,7 @@ Init_String(void)
rb_define_method(rb_cSymbol, "inspect", sym_inspect, 0);
rb_define_method(rb_cSymbol, "to_s", rb_sym_to_s, 0);
rb_define_method(rb_cSymbol, "id2name", rb_sym_to_s, 0);
rb_define_method(rb_cSymbol, "name", rb_sym2str, 0);
rb_define_method(rb_cSymbol, "intern", sym_to_sym, 0);
rb_define_method(rb_cSymbol, "to_sym", sym_to_sym, 0);
rb_define_method(rb_cSymbol, "to_proc", rb_sym_to_proc, 0);

6
test/ruby/test_symbol.rb
View file

@ -105,6 +105,12 @@ class TestSymbol < Test::Unit::TestCase
end
end
def test_name
assert_equal("foo", :foo.name)
assert_same(:foo.name, :foo.name)
assert_predicate(:foo.name, :frozen?)
end
def test_to_proc
assert_equal %w(1 2 3), (1..3).map(&:to_s)
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