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OlivierBlanvillain opened this issue Oct 13, 2016 · 0 comments
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java.lang.Error: type is not fully defined #1590

OlivierBlanvillain opened this issue Oct 13, 2016 · 0 comments
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@OlivierBlanvillain
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This minimized case class:

case class W[T](seq: Option[Option[T]] = Option.empty)

Stops the compilation with the following exception:

Exception in thread "main" java.lang.Error: internal error: type of right-hand side Option[A] is not fully defined, pos = <58..98>

(full stack trace)
odersky added a commit to dotty-staging/dotty that referenced this issue Oct 13, 2016
@odersky
Fix scala#1590: Eliminate wildcards when approximating a type
a45a3e5 
Fixes scala#1590. Type variables should never be instantiated to types
containing wildcards.
@odersky odersky mentioned this issue Oct 13, 2016
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@odersky odersky assigned odersky and unassigned odersky Oct 13, 2016
odersky added a commit that referenced this issue Oct 16, 2016
@odersky
Merge pull request #1592 from dotty-staging/fix-#1590
0fdd4e3 
Fix #1590: Eliminate wildcards when approximating a type
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