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Add some post conditions to ReifyQuotes #4870

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Merged
merged 2 commits into from
Jul 31, 2018
Merged

Add some post conditions to ReifyQuotes #4870

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c0e1279
Add some post conditions to ReifyQuotes
nicolasstucki Jul 30, 2018
9f7a8b4
Update ReifyQuotes.scala
nicolasstucki Jul 31, 2018
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12 changes: 12 additions & 0 deletions compiler/src/dotty/tools/dotc/transform/ReifyQuotes.scala
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Original file line number Diff line number Diff line change
Expand Up @@ -74,6 +74,18 @@ class ReifyQuotes extends MacroTransformWithImplicits {

override def phaseName: String = "reifyQuotes"

override def checkPostCondition(tree: Tree)(implicit ctx: Context): Unit = {
tree match {
case tree: RefTree if !ctx.inTransparentMethod =>
assert(!tree.symbol.isQuote)
// assert(!tree.symbol.isSplice) // TODO widen ~ type references at stage 0?
assert(tree.symbol != defn.QuotedExpr_~)
case tree: Select if tree.symbol == defn.QuotedExpr_~ =>
assert(Splicer.canBeSpliced(tree.qualifier))
case _ =>
}
}

override def run(implicit ctx: Context): Unit =
if (ctx.compilationUnit.containsQuotesOrSplices) super.run

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