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Fix #1731: Add regression test #4959

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Merged
merged 1 commit into from
Aug 17, 2018
Merged

Fix #1731: Add regression test #4959

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15 changes: 15 additions & 0 deletions compiler/test/dotty/tools/dotc/reporting/ErrorMessagesTests.scala
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Original file line number Diff line number Diff line change
Expand Up @@ -211,6 +211,21 @@ class ErrorMessagesTests extends ErrorMessagesTest {
assertEquals("foo", cycleSym.name.show)
}

@Test def i1731 =
checkMessagesAfter(FrontEnd.name) {
"""
|case class Foo[T](x: T)
|object Foo { def apply[T]() = Foo(null.asInstanceOf[T]) }
""".stripMargin
}
.expect { (ictx, messages) =>
implicit val ctx: Context = ictx

assertMessageCount(1, messages)
val OverloadedOrRecursiveMethodNeedsResultType(cycleSym) :: Nil = messages
assertEquals("apply", cycleSym.name.show)
}

@Test def recursiveMethodNeedsReturnType =
checkMessagesAfter(FrontEnd.name) {
"""
Expand Down