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Avoid assertion failure for illegal trait inheritance #15631

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Jul 11, 2022
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Avoid assertion failure for illegal trait inheritance #15631

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2 changes: 1 addition & 1 deletion compiler/src/dotty/tools/dotc/typer/Namer.scala
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Original file line number Diff line number Diff line change
Expand Up @@ -478,7 +478,7 @@ class Namer { typer: Typer =>
if (child == other)
annots // can happen if a class has several inaccessible children
else {
assert(childStart != other.span.start, i"duplicate child annotation $child / $other")
assert(childStart != other.span.start || child.source != other.source, i"duplicate child annotation $child / $other")
val (prefix, otherAnnot :: rest) = annots.span(_.symbol != defn.ChildAnnot): @unchecked
prefix ::: otherAnnot :: insertInto(rest)
}
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