diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/reflect/scala/reflect/internal/BuildUtils.scala | 30 |
1 files changed, 25 insertions, 5 deletions
diff --git a/src/reflect/scala/reflect/internal/BuildUtils.scala b/src/reflect/scala/reflect/internal/BuildUtils.scala index 004c4aa40b..cae671a5e9 100644 --- a/src/reflect/scala/reflect/internal/BuildUtils.scala +++ b/src/reflect/scala/reflect/internal/BuildUtils.scala @@ -326,7 +326,9 @@ trait BuildUtils { self: SymbolTable => def unapply(tree: Tree): Option[List[Tree]] = tree match { case Literal(Constant(())) => Some(Nil) - case Apply(TupleCompanionRef(sym), args) if sym == TupleClass(args.length).companionModule => + case Apply(MaybeTypeTreeOriginal(SyntacticTypeApplied(MaybeSelectApply(TupleCompanionRef(sym)), targs)), args) + if sym == TupleClass(args.length).companionModule + && (targs.isEmpty || targs.length == args.length) => Some(args) case _ => None @@ -339,10 +341,11 @@ trait BuildUtils { self: SymbolTable => gen.mkTupleType(args, flattenUnary = false) } - def unapply(tree: Tree): Option[List[Tree]] = tree match { - case UnitClassRef(_) => + def unapply(tree: Tree): Option[List[Tree]] = tree match { + case MaybeTypeTreeOriginal(UnitClassRef(_)) => Some(Nil) - case AppliedTypeTree(TupleClassRef(sym), args) if sym == TupleClass(args.length) => + case MaybeTypeTreeOriginal(AppliedTypeTree(TupleClassRef(sym), args)) + if sym == TupleClass(args.length) => Some(args) case _ => None @@ -356,7 +359,8 @@ trait BuildUtils { self: SymbolTable => } def unapply(tree: Tree): Option[(List[Tree], Tree)] = tree match { - case AppliedTypeTree(FunctionClassRef(sym), args @ (argtpes :+ restpe)) if sym == FunctionClass(args.length - 1) => + case MaybeTypeTreeOriginal(AppliedTypeTree(FunctionClassRef(sym), args @ (argtpes :+ restpe))) + if sym == FunctionClass(args.length - 1) => Some((argtpes, restpe)) case _ => None } @@ -437,6 +441,22 @@ trait BuildUtils { self: SymbolTable => case _ => None } } + + // use typetree's original instead of typetree itself + protected object MaybeTypeTreeOriginal { + def unapply(tree: Tree): Some[Tree] = tree match { + case tt: TypeTree => Some(tt.original) + case _ => Some(tree) + } + } + + // drop potential extra call to .apply + protected object MaybeSelectApply { + def unapply(tree: Tree): Some[Tree] = tree match { + case Select(f, nme.apply) => Some(f) + case other => Some(other) + } + } } val build: BuildImpl = new BuildImpl |