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Accept open-ended typed ranges in runtime checks #3138

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Accept open-ended typed ranges in runtime checks #3138

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4a6c7ba
Accept open-ended typed ranges
OskarEichler Aug 30, 2026
6038c2a
Handle minimal range endpoint objects
OskarEichler Aug 30, 2026
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4 changes: 3 additions & 1 deletion lib/rbs/test/type_check.rb
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Original file line number Diff line number Diff line change
Expand Up @@ -280,7 +280,9 @@ def value(val, type)
value(key, type.args[0]) && value(val[key], type.args[1])
end
when klass == ::Range
Test.call(val, IS_AP, klass) && value(val.begin, type.args[0]) && value(val.end, type.args[0])
Test.call(val, IS_AP, klass) &&
(Test.call(val.begin, IS_AP, ::NilClass) || value(val.begin, type.args[0])) &&
(Test.call(val.end, IS_AP, ::NilClass) || value(val.end, type.args[0]))
when klass == ::Enumerator
if Test.call(val, IS_AP, klass)
case val.size
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