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| author | Martin Odersky <odersky@gmail.com> | 2013-09-26 12:03:10 +0200 |
|---|---|---|
| committer | Martin Odersky <odersky@gmail.com> | 2013-09-26 12:43:55 +0200 |
| commit | 54acd26dcf377e2eb2a474399894e10cfd4322f5 (patch) | |
| tree | a275062a8cab9e81b401a4745400f8db71fed1ae /src/dotty/tools/dotc/typer/Typer.scala | |
| parent | b7f5aa30383730dc1d2b34f9773695d0f5669bcd (diff) | |
| download | dotty-54acd26dcf377e2eb2a474399894e10cfd4322f5.tar.gz dotty-54acd26dcf377e2eb2a474399894e10cfd4322f5.tar.bz2 dotty-54acd26dcf377e2eb2a474399894e10cfd4322f5.zip | |
Added isRef method to determine whether a type is a typeref that refers to a symbol.
The alternative (tpe eq sym.typeConstructor) does not work because types are not unique.
The alternative (tpe.typeSymbol == sym) does not work because other types than TypeRefs have typeSymbols.
Diffstat (limited to 'src/dotty/tools/dotc/typer/Typer.scala')
| -rw-r--r-- | src/dotty/tools/dotc/typer/Typer.scala | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/src/dotty/tools/dotc/typer/Typer.scala b/src/dotty/tools/dotc/typer/Typer.scala index 69b79a474..0c33aa026 100644 --- a/src/dotty/tools/dotc/typer/Typer.scala +++ b/src/dotty/tools/dotc/typer/Typer.scala @@ -387,7 +387,7 @@ class Typer extends Namer with Applications with Implicits { def typedPair(tree: untpd.Pair, pt: Type)(implicit ctx: Context) = { val (leftProto, rightProto) = pt.typeArgs match { - case l :: r :: Nil if pt.typeSymbol == defn.PairClass => (l, r) + case l :: r :: Nil if pt isRef defn.PairClass => (l, r) case _ => (WildcardType, WildcardType) } val left1 = typed(tree.left, leftProto) @@ -468,7 +468,7 @@ class Typer extends Namer with Applications with Implicits { else { val params = args.asInstanceOf[List[ValDef]] val protoFormals: List[Type] = pt match { - case _ if pt.typeSymbol == defn.FunctionClass(params.length) => + case _ if pt isRef defn.FunctionClass(params.length) => pt.typeArgs take params.length case SAMType(meth) => val MethodType(_, paramTypes) = meth.info @@ -1028,7 +1028,7 @@ class Typer extends Namer with Applications with Implicits { val folded = ConstFold(tree, pt) if (folded ne EmptyTree) return folded // drop type if prototype is Unit - if (pt.typeSymbol == defn.UnitClass) + if (pt isRef defn.UnitClass) return tpd.Block(tree :: Nil, Literal(Constant())) // convert function literal to SAM closure tree match { |