diff options
| -rw-r--r-- | src/compiler/scala/tools/nsc/typechecker/Implicits.scala | 4 | ||||
| -rw-r--r-- | test/files/neg/t8291.check | 7 | ||||
| -rw-r--r-- | test/files/neg/t8291.scala | 7 |
3 files changed, 17 insertions, 1 deletions
diff --git a/src/compiler/scala/tools/nsc/typechecker/Implicits.scala b/src/compiler/scala/tools/nsc/typechecker/Implicits.scala index b85c8e6d42..74c28122a1 100644 --- a/src/compiler/scala/tools/nsc/typechecker/Implicits.scala +++ b/src/compiler/scala/tools/nsc/typechecker/Implicits.scala @@ -1478,8 +1478,10 @@ trait Implicits { }) private lazy val typeParamNames: List[String] = sym.typeParams.map(_.decodedName) + private def typeArgsAtSym(paramTp: Type) = paramTp.baseType(sym).typeArgs + + def format(paramName: Name, paramTp: Type): String = format(typeArgsAtSym(paramTp) map (_.toString)) - def format(paramName: Name, paramTp: Type): String = format(paramTp.typeArgs map (_.toString)) def format(typeArgs: List[String]): String = interpolate(msg, Map((typeParamNames zip typeArgs): _*)) // TODO: give access to the name and type of the implicit argument, etc? diff --git a/test/files/neg/t8291.check b/test/files/neg/t8291.check new file mode 100644 index 0000000000..c9972e5575 --- /dev/null +++ b/test/files/neg/t8291.check @@ -0,0 +1,7 @@ +t8291.scala:5: error: Could not find implicit for Int or String + implicitly[X[Int, String]] + ^ +t8291.scala:6: error: Could not find implicit for Int or String + implicitly[Z[String]] + ^ +two errors found diff --git a/test/files/neg/t8291.scala b/test/files/neg/t8291.scala new file mode 100644 index 0000000000..b344586a56 --- /dev/null +++ b/test/files/neg/t8291.scala @@ -0,0 +1,7 @@ +@scala.annotation.implicitNotFound("Could not find implicit for ${T} or ${U}") trait X[T, U] + +object Test { + type Z[U] = X[Int, U] + implicitly[X[Int, String]] + implicitly[Z[String]] +} |