diff options
Diffstat (limited to 'vm_method.c')
| -rw-r--r-- | vm_method.c | 15 |
1 files changed, 9 insertions, 6 deletions
diff --git a/vm_method.c b/vm_method.c index 182d42dc1a..1950fb1f9d 100644 --- a/vm_method.c +++ b/vm_method.c @@ -2165,14 +2165,13 @@ rb_mod_private(int argc, VALUE *argv, VALUE module) * methods. * * This should only be used for methods that delegate keywords to another - * method, and only for backwards compatibility with Ruby versions before - * 2.7. + * method, and only for backwards compatibility with Ruby versions before 3.0. + * See https://www.ruby-lang.org/en/news/2019/12/12/separation-of-positional-and-keyword-arguments-in-ruby-3-0/ + * for details on why +ruby2_keywords+ exists and when and how to use it. * * This method will probably be removed at some point, as it exists only - * for backwards compatibility. As it does not exist in Ruby versions - * before 2.7, check that the module responds to this method before calling - * it. Also, be aware that if this method is removed, the behavior of the - * method will change so that it does not pass through keywords. + * for backwards compatibility. As it does not exist in Ruby versions before + * 2.7, check that the module responds to this method before calling it: * * module Mod * def foo(meth, *args, &block) @@ -2180,6 +2179,10 @@ rb_mod_private(int argc, VALUE *argv, VALUE module) * end * ruby2_keywords(:foo) if respond_to?(:ruby2_keywords, true) * end + * + * However, be aware that if the +ruby2_keywords+ method is removed, the + * behavior of the +foo+ method using the above approach will change so that + * the method does not pass through keywords. */ static VALUE |