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Author: nicolasstucki

library/src-bootstrapped/scala/runtime/quoted/Matcher.scala

@@ -38,15 +38,18 @@ object Matcher {
         case (Block(Nil, expr), _) => treeMatches(expr, pattern)
         case (_, Block(Nil, pat)) => treeMatches(scrutinee, pat)
 
-        // Match
+        // Match a scala.internal.Quoted.patternHole and return the scrutinee tree
         case (IsTerm(scrutinee), TypeApply(patternHole, tpt :: Nil))
             if patternHole.symbol == kernel.Definitions_InternalQuoted_patternHole && scrutinee.tpe <:< tpt.tpe =>
           Some(Tuple1(scrutinee.seal))
 
-        case (Inlined(_, Nil, scr), _) =>
-          treeMatches(scr, pattern)
-        case (_, Inlined(_, Nil, pat)) =>
-          treeMatches(scrutinee, pat)
+        // Normalize inline trees
+        case (Inlined(_, Nil, scr), _) => treeMatches(scr, pattern)
+        case (_, Inlined(_, Nil, pat)) => treeMatches(scrutinee, pat)
+
+        //
+        // Match two equivalent trees
+        //
 
         case (Literal(constant1), Literal(constant2)) if constant1 == constant2 =>
           Some(())
@@ -150,6 +153,7 @@ object Matcher {
           val finalizerMatch = treeOptMatches(finalizer1, finalizer2)
           foldMatchings(bodyMacth, casesMatch, finalizerMatch)
 
+        // No Match
         case _ =>
           if (debug)
             println(