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Cleanup commit #3890

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Jan 23, 2018
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Cleanup commit #3890

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18 changes: 6 additions & 12 deletions compiler/src/dotty/tools/dotc/typer/Inferencing.scala
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Original file line number Diff line number Diff line change
Expand Up @@ -341,18 +341,12 @@ trait Inferencing { this: Typer =>
case _ => false
}

var isConstrained = false
def ensureConstrained() =
if (!isConstrained) {
isConstrained = true
tree match {
case tree: Apply => // already constrained
case _ => tree.tpe match {
case _: MethodOrPoly => // already constrained
case tp => constrainResult(tp, pt)
}
}
}
var isConstrained = tree.isInstanceOf[Apply] || tree.tpe.isInstanceOf[MethodOrPoly]

def ensureConstrained() = if (!isConstrained) {
isConstrained = true
constrainResult(tree.tpe, pt)
}

// Avoid interpolating variables if typerstate has unreported errors.
// Reason: The errors might reflect unsatisfiable constraints. In that
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