はてなブックマーク

# typed: true class A extend T::Sig sig {params(x: Integer).returns(String)} def bar(x) x.to_s end end def main A.new.barr(91) # error: Typo! A.new.bar("91") # error: Type mismatch! end Autocorrect: Use `-a` to autocorrect editor.rb:12: Replace with bar 12 | A.new.barr(91) # error: Typo! ^^^^ editor.rb:13: Expected Integer but found String("91") for argument x https://srb.help/7002 13 | A.new.bar(