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Postings from March 2021
Hi, I prepared quick draft of new feature.[ch] - https://pastebin.com/Lnuq3Nec I hope it's enough to show an idea and evaluate usability. Doing more involves modification in regen/feature.pl which I don't want to start without some kind of consensus that it's a good idea (being stuck with glr parser I need some relax ...) This mechanism - supports unlimited number of features - supports deprecated and prohibited flip - supports bundle (or better, protocol) composition - ie, doesn't use cop_hints - supports different defaults per bundle * deprecated and prohibited flip For example, should feature "indirect" be deprecated since 5.38 and prohibited in 7.0 (default "off" in both), then sequences use v5.38; use v5.10; # can raise warning "indirect is deprecated" use v7.0 use v5.10; # can die "indirect is prohibited" * composition Here I'm not sure how it should behave - for feature manually set it's possible to preserve it's value - it's possible for bundle/protocol to say "i don't care about this feature" Example, it's possible to implement, that after this (as an example with known feature) use feature 'fc'; use v5.10; one can still use fc Best regards, BranoThread Next