Fix #2140: Avoid exponential subtype complexity #2890
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smarter
approved these changes
Jul 19, 2017
| @@ -993,7 +993,7 @@ class TypeComparer(initctx: Context) extends DotClass with ConstraintHandling { | |||
| case tp: ProtoType => false | |||
| case tp: RefinedOrRecType => isCovered(tp.parent) | |||
| case tp: AnnotatedType => isCovered(tp.underlying) | |||
| case AndType(tp1, tp2) => isCovered(tp1) && isCovered(tp2) | |||
| case tp: AndOrType => isCovered(tp.tp1) && isCovered(tp.tp2) | |||
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The documentation of the method needs to be updated to refer to AndOrTypes instead of AndTypes
Avoid exponential subtype complexity arising from revisiting |-types unnecessarily.
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Avoid exponential subtype complexity arising from revisiting |-types
unnecessarily.