fix #3645: handle type alias in child instantiation #3646
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I think this code would benefit from having more comments explaining what it does :). |
smarter
reviewed
Dec 11, 2017
| if (tref.symbol.is(Module)) mapOver(tref) | ||
| else newTypeVar(TypeBounds.upper(tp.underlying)) | ||
| case tp: TypeRef if tp.underlying.isInstanceOf[TypeBounds] => | ||
| // Note that the logic for contra- and co-variance is reverse of `typeParamMap` |
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typeParamMap was renamed parentTypeMap :)
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Fix #3645: handle type alias in child instantiation