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| author | Martin Odersky <odersky@gmail.com> | 2016-07-16 15:21:12 +0200 |
|---|---|---|
| committer | Martin Odersky <odersky@gmail.com> | 2016-07-16 15:21:21 +0200 |
| commit | 0eb2d76c467a53786ae6147c9c983c23ab0894c8 (patch) | |
| tree | 44db7e49882c87f2906d6d21dca564c0d5407d38 /src/dotty/tools/dotc/typer/ProtoTypes.scala | |
| parent | bd45ecc06b04c3788d1ce706508eed5e0c50b50b (diff) | |
| download | dotty-0eb2d76c467a53786ae6147c9c983c23ab0894c8.tar.gz dotty-0eb2d76c467a53786ae6147c9c983c23ab0894c8.tar.bz2 dotty-0eb2d76c467a53786ae6147c9c983c23ab0894c8.zip | |
Proparage function result constrains when inferring parameter types
If an application has functions with implicit parameter types we need to be
more aggressive about propagating knowledge of the expected result type into
the constraint.
Fixes #1378.
Diffstat (limited to 'src/dotty/tools/dotc/typer/ProtoTypes.scala')
| -rw-r--r-- | src/dotty/tools/dotc/typer/ProtoTypes.scala | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/dotty/tools/dotc/typer/ProtoTypes.scala b/src/dotty/tools/dotc/typer/ProtoTypes.scala index a430d5f75..767ccbe7d 100644 --- a/src/dotty/tools/dotc/typer/ProtoTypes.scala +++ b/src/dotty/tools/dotc/typer/ProtoTypes.scala @@ -175,7 +175,7 @@ object ProtoTypes { def isMatchedBy(tp: Type)(implicit ctx: Context) = typer.isApplicable(tp, Nil, typedArgs, resultType) - def derivedFunProto(args: List[untpd.Tree], resultType: Type, typer: Typer) = + def derivedFunProto(args: List[untpd.Tree] = this.args, resultType: Type, typer: Typer = this.typer) = if ((args eq this.args) && (resultType eq this.resultType) && (typer eq this.typer)) this else new FunProto(args, resultType, typer) |