Feature #16018: Add a way to deprecate methods

• Status: Open
• Assignee: -
• Target version: -

[vo.x (Vit Ondruch)]

Since #11398, We have Module#deprecate_constant available. But I wonder, why we don't have a way to deprecate methods? There is already Gem::Deprecate 1, so may be this could be extracted and made more generic?

This might be useful on several places in Ruby code:

$ find . -name \*.rb -type f -exec grep -r '[^_]warn.*deprecate' {} \; | wc -l
66

[jeremyevans0 (Jeremy Evans)]

• Tracker changed from Bug to Feature
• ruby -v deleted (ruby 2.6.3p62 (2019-04-16 revision 67580) [i386-linux])
• Backport deleted (2.5: UNKNOWN, 2.6: UNKNOWN)

[mame (Yusuke Endoh)]

At the developers' meeting, no one was against this feature. It would be great if we can print a warning per a pair of callsite and callee (to suppress duplicated redundant warnings), but the implementation is not trivial (exploiting method call cache)?

[vo.x (Vit Ondruch)]

• Related to Feature #16345: Don't emit deprecation warnings by default. added