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Fix #3873: Properly unpickle shared TypeTrees #3874

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Merged
merged 1 commit into from
Jan 21, 2018
Merged

Fix #3873: Properly unpickle shared TypeTrees #3874

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8 changes: 6 additions & 2 deletions compiler/src/dotty/tools/dotc/core/tasty/TreeUnpickler.scala
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Original file line number Diff line number Diff line change
Expand Up @@ -1054,8 +1054,12 @@ class TreeUnpickler(reader: TastyReader,
setPos(start, tree)
}

def readTpt()(implicit ctx: Context) =
if (nextByte == SHAREDterm || isTypeTreeTag(nextUnsharedTag)) readTerm()
def readTpt()(implicit ctx: Context): Tree =
if (nextByte == SHAREDterm) {
readByte()
forkAt(readAddr()).readTpt()
}
else if (isTypeTreeTag(nextByte)) readTerm()
else {
val start = currentAddr
val tp = readType()
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6 changes: 6 additions & 0 deletions tests/pos/i3873.scala
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Original file line number Diff line number Diff line change
@@ -0,0 +1,6 @@
object Test {
inline def sum2(ys: List[Int]): Unit = {
ys.foldLeft(1)
}
val h1: ((List[Int]) => Unit) = sum2
}