diff options
| author | Martin Odersky <odersky@gmail.com> | 2016-02-05 17:27:23 +0100 |
|---|---|---|
| committer | Martin Odersky <odersky@gmail.com> | 2016-02-05 17:27:23 +0100 |
| commit | 37c877d0781547bb5e26c05b1713b7f7b3ef0411 (patch) | |
| tree | c1b88297c6d522102376032d4b0ae09715b39ced /src/dotty/tools/dotc/typer/Typer.scala | |
| parent | 9d8c92d1d52fcfa95d57ce88d91dbb84c8ecfbd1 (diff) | |
| download | dotty-37c877d0781547bb5e26c05b1713b7f7b3ef0411.tar.gz dotty-37c877d0781547bb5e26c05b1713b7f7b3ef0411.tar.bz2 dotty-37c877d0781547bb5e26c05b1713b7f7b3ef0411.zip | |
Handle "missing args" case when expected type is a singleton type.
Fixes #803.
Diffstat (limited to 'src/dotty/tools/dotc/typer/Typer.scala')
| -rw-r--r-- | src/dotty/tools/dotc/typer/Typer.scala | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/src/dotty/tools/dotc/typer/Typer.scala b/src/dotty/tools/dotc/typer/Typer.scala index b1e4bb48a..c94c90d1d 100644 --- a/src/dotty/tools/dotc/typer/Typer.scala +++ b/src/dotty/tools/dotc/typer/Typer.scala @@ -1343,6 +1343,10 @@ class Typer extends Namer with TypeAssigner with Applications with Implicits wit def methodStr = err.refStr(methPart(tree).tpe) + def missingArgs = errorTree(tree, + d"""missing arguments for $methodStr + |follow this method with `_' if you want to treat it as a partially applied function""".stripMargin) + def adaptOverloaded(ref: TermRef) = { val altDenots = ref.denot.alternatives typr.println(i"adapt overloaded $ref with alternatives ${altDenots map (_.info)}%, %") @@ -1475,12 +1479,11 @@ class Typer extends Namer with TypeAssigner with Applications with Implicits wit else if (wtp.isImplicit) err.typeMismatch(tree, pt) else - errorTree(tree, - d"""missing arguments for $methodStr - |follow this method with `_' if you want to treat it as a partially applied function""".stripMargin) + missingArgs case _ => if (tree.tpe <:< pt) tree else if (ctx.mode is Mode.Pattern) tree // no subtype check for pattern + else if (wtp.isInstanceOf[MethodType]) missingArgs else { typr.println(i"adapt to subtype ${tree.tpe} !<:< $pt") //typr.println(TypeComparer.explained(implicit ctx => tree.tpe <:< pt)) |