Fix #6210: Erase type blocks in Typed trees #6221
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nicolasstucki
commented
Apr 3, 2019
| val tpt1 = tpt match { | ||
| case Block(_, tpt) => tpt // erase type aliases (statements) from type block | ||
| case tpt => tpt | ||
| } |
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The problematic Typed.tpt is inserted in TypeTestsCasts.scala#L236, this case could also be handled there.
nicolasstucki
changed the title
Type blocks of the for `{ type T1 = X1; ... ; type Tn = Xn; F[T1,..., Tn] }`
are erased to `F[X1,..., Xn]`. We where erasing the type of the tree correctly but
needed to drop the block as well.
odersky
approved these changes
Apr 5, 2019
ghost
removed
the
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Type blocks of the for
{ type T1 = X1; ... ; type Tn = Xn; F[T1,..., Tn] }are erased to
F[X1,..., Xn]. We where erasing the type of the tree correctly butneeded to drop the block as well.