diff options
Diffstat (limited to 'test')
-rw-r--r-- | test/files/neg/delayed-init-ref.check | 10 | ||||
-rw-r--r-- | test/files/neg/delayed-init-ref.flags | 1 | ||||
-rw-r--r-- | test/files/neg/delayed-init-ref.scala | 42 | ||||
-rw-r--r-- | test/files/neg/t6771b.check | 6 | ||||
-rw-r--r-- | test/files/neg/t6771b.scala | 16 | ||||
-rw-r--r-- | test/files/pos/t6091.flags | 1 | ||||
-rw-r--r-- | test/files/pos/t6091.scala | 10 | ||||
-rw-r--r-- | test/files/pos/t6771.flags | 1 | ||||
-rw-r--r-- | test/files/pos/t6771.scala | 9 |
9 files changed, 96 insertions, 0 deletions
diff --git a/test/files/neg/delayed-init-ref.check b/test/files/neg/delayed-init-ref.check new file mode 100644 index 0000000000..42ccabed1b --- /dev/null +++ b/test/files/neg/delayed-init-ref.check @@ -0,0 +1,10 @@ +delayed-init-ref.scala:17: error: Selecting value vall from object O, which extends scala.DelayedInit, is likely to yield an uninitialized value + println(O.vall) // warn + ^ +delayed-init-ref.scala:19: error: Selecting value vall from object O, which extends scala.DelayedInit, is likely to yield an uninitialized value + println(vall) // warn + ^ +delayed-init-ref.scala:40: error: Selecting value foo from trait UserContext, which extends scala.DelayedInit, is likely to yield an uninitialized value + println({locally(()); this}.foo) // warn (spurious, but we can't discriminate) + ^ +three errors found diff --git a/test/files/neg/delayed-init-ref.flags b/test/files/neg/delayed-init-ref.flags new file mode 100644 index 0000000000..7949c2afa2 --- /dev/null +++ b/test/files/neg/delayed-init-ref.flags @@ -0,0 +1 @@ +-Xlint -Xfatal-warnings diff --git a/test/files/neg/delayed-init-ref.scala b/test/files/neg/delayed-init-ref.scala new file mode 100644 index 0000000000..f2aa804e28 --- /dev/null +++ b/test/files/neg/delayed-init-ref.scala @@ -0,0 +1,42 @@ +trait T { + val traitVal = "" +} + +object O extends App with T { + val vall = "" + lazy val lazyy = "" + def deff = "" + + println(vall) // no warn + new { + println(vall) // no warn + } +} + +object Client { + println(O.vall) // warn + import O.vall + println(vall) // warn + + println(O.lazyy) // no warn + println(O.deff) // no warn + println(O.traitVal) // no warn +} + +// Delayed init usage pattern from Specs2 +// See: https://groups.google.com/d/msg/scala-sips/wP6dL8nIAQs/ogjoPE-MSVAJ +trait Before extends DelayedInit { + def before() + override def delayedInit(x: => Unit): Unit = { before; x } +} +object Spec { + trait UserContext extends Before { + def before() = () + val foo = "foo" + } + new UserContext { + println(foo) // no warn + println(this.foo) // no warn + println({locally(()); this}.foo) // warn (spurious, but we can't discriminate) + } +} diff --git a/test/files/neg/t6771b.check b/test/files/neg/t6771b.check new file mode 100644 index 0000000000..ba99e9178d --- /dev/null +++ b/test/files/neg/t6771b.check @@ -0,0 +1,6 @@ +t6771b.scala:14: error: type mismatch; + found : x.type (with underlying type String) + required: Test.a.type + b = b match { case x => x } + ^ +one error found diff --git a/test/files/neg/t6771b.scala b/test/files/neg/t6771b.scala new file mode 100644 index 0000000000..78f11f7750 --- /dev/null +++ b/test/files/neg/t6771b.scala @@ -0,0 +1,16 @@ +// Currently, the pattern matcher widens the type of the +// scrutinee, so this doesn't typecheck. This test just +// confirms this behaviour, although it would be an improvement +// to change this and make this a `pos` test. +// +// But, to the intrepid hacker who works on this, a few notes: +// You'll have to look into places in the pattern matcher that +// call `dealias`, and see if they need to be `dealiasWiden`. +// For example, if `checkableType` used only `dealias`, `pos/t6671.scala` +// would fail. +object Test { + val a = ""; var b: a.type = a + + b = b match { case x => x } +} + diff --git a/test/files/pos/t6091.flags b/test/files/pos/t6091.flags new file mode 100644 index 0000000000..954eaba352 --- /dev/null +++ b/test/files/pos/t6091.flags @@ -0,0 +1 @@ +-Xfatal-warnings -Xlint diff --git a/test/files/pos/t6091.scala b/test/files/pos/t6091.scala new file mode 100644 index 0000000000..72e663ec3b --- /dev/null +++ b/test/files/pos/t6091.scala @@ -0,0 +1,10 @@ +object Foo { def eq(x:Int) = x } + +class X { def ==(other: String) = true } + +object Test { + def main(args: Array[String]): Unit = { + Foo eq 1 + new X == null + } +} diff --git a/test/files/pos/t6771.flags b/test/files/pos/t6771.flags new file mode 100644 index 0000000000..e8fb65d50c --- /dev/null +++ b/test/files/pos/t6771.flags @@ -0,0 +1 @@ +-Xfatal-warnings
\ No newline at end of file diff --git a/test/files/pos/t6771.scala b/test/files/pos/t6771.scala new file mode 100644 index 0000000000..0f0bd4e4a0 --- /dev/null +++ b/test/files/pos/t6771.scala @@ -0,0 +1,9 @@ +object Test { + type Id[X] = X + val a: Id[Option[Int]] = None + + a match { + case Some(x) => println(x) + case None => + } +} |