From 9ef5f6817688f814a3450126aa7383b0928e80a0 Mon Sep 17 00:00:00 2001
From: Samuel Gruetter <samuel.gruetter@epfl.ch>
Date: Wed, 12 Mar 2014 22:44:33 +0100
Subject: add tests from scala/test/files/{pos,neg}

with explicit Unit return type
---
 tests/untried/pos/patmat.scala | 163 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 163 insertions(+)
 create mode 100644 tests/untried/pos/patmat.scala

(limited to 'tests/untried/pos/patmat.scala')

diff --git a/tests/untried/pos/patmat.scala b/tests/untried/pos/patmat.scala
new file mode 100644
index 000000000..53e1c5f1f
--- /dev/null
+++ b/tests/untried/pos/patmat.scala
@@ -0,0 +1,163 @@
+// these used to be in test/files/run/patmatnew.scala
+// the ticket numbers are from the old tracker, not Trac
+
+object ZipFun {
+  //just compilation
+  def zipFun[a, b](xs: List[a], ys: List[b]): List[Tuple2[a, b]] = ((xs, ys): @unchecked) match {
+    // !!! case (List(), _), (_, List()) => List()
+    case (x :: xs1, y :: ys1) => (x, y) :: zipFun(xs1, ys1)
+  }
+}
+
+object Test1253 { // compile-only
+  def foo(t: (Int, String)) = t match {
+    case (1, "") => throw new Exception
+    case (r, _) => throw new Exception(r.toString)
+  }
+}
+
+object Foo1258 {
+  case object baz
+  def foo(bar: AnyRef) = {
+    val Baz = baz
+    bar match {
+      case Baz => ()
+    }
+  }
+}
+
+object t1261 {
+  sealed trait Elem
+  case class Foo() extends Elem
+  case class Bar() extends Elem
+  trait Row extends Elem
+  object Row {
+    def unapply(r: Row) = true
+
+    def f(elem: Elem): Unit = {
+      elem match {
+        case Bar() => ;
+        case Row() => ;
+        case Foo() => ; // used to give ERROR (unreachable code)
+      }
+    }
+  }
+}
+
+sealed abstract class Tree
+case class Node(l: Tree, v: Int, r: Tree) extends Tree
+case object EmptyTree extends Tree
+
+object Ticket335 { // compile-only
+  def runTest(): Unit = {
+    (EmptyTree: Tree @unchecked) match {
+      case Node(_, v, _) if (v == 0) => 0
+      case EmptyTree => 2
+    }
+  }
+}
+
+object TestIfOpt { //compile-only "test EqualsPatternClass in combination with MixTypes opt, bug #1278"
+  trait Token {
+    val offset: Int
+    def matching: Option[Token]
+  }
+  def go(tok: Token) = (tok.matching: @unchecked) match {
+    case Some(other) if true => Some(other)
+    case _ if true => tok.matching match {
+      case Some(other) => Some(other)
+      case _ => None
+    }
+  }
+}
+
+object Go { // bug #1277 compile-only
+  trait Core { def next: Position = null }
+  trait Dir
+  val NEXT = new Dir {}
+
+  trait Position extends Core
+
+  (null: Core, null: Dir) match {
+    case (_, NEXT) if true => false // no matter whether NEXT test succeed, cannot throw column because of guard
+    case (at2: Position, dir) => true
+  }
+}
+
+trait Outer { // bug #1282 compile-only
+  object No
+  trait File {
+    (null: AnyRef) match {
+      case No => false
+    }
+  }
+}
+
+class Test806_818 { // #806, #811 compile only -- type of bind
+  // t811
+  trait Core {
+    trait NodeImpl
+    trait OtherImpl extends NodeImpl
+    trait DoubleQuoteImpl extends NodeImpl
+    def asDQ(node: OtherImpl) = node match {
+      case dq: DoubleQuoteImpl => dq
+    }
+  }
+
+  trait IfElseMatcher {
+    type Node <: NodeImpl
+    trait NodeImpl
+    trait IfImpl
+    private def coerceIf(node: Node) = node match {
+      case node: IfImpl => node // var node is of type Node with IfImpl!
+      case _ => null
+    }
+  }
+}
+
+object Ticket495bis {
+  def signum(x: Int): Int =
+    x match {
+      case 0 => 0
+      case _ if x < 0 => -1
+      case _ if x > 0 => 1
+    }
+  def pair_m(x: Int, y: Int) =
+    (x, y) match {
+      case (_, 0) => 0
+      case (-1, _) => -1
+      case (_, _) => 1
+    }
+}
+
+object Ticket522 {
+  class Term[X]
+  object App {
+    // i'm hidden
+    case class InternalApply[Y, Z](fun: Y => Z, arg: Y) extends Term[Z]
+
+    def apply[Y, Z](fun: Y => Z, arg: Y): Term[Z] =
+      new InternalApply[Y, Z](fun, arg)
+
+    def unapply[X](arg: Term[X]): Option[(Y => Z, Y)] forSome { type Y; type Z } =
+      arg match {
+        case i: InternalApply[y, z] => Some(i.fun, i.arg)
+        case _ => None
+      }
+  }
+
+  App({ x: Int => x }, 5) match {
+    case App(arg, a) =>
+  }
+}
+
+object Ticket710 {
+  def method: Unit = {
+    sealed class Parent()
+    case object Child extends Parent()
+    val x: Parent = Child
+    x match {
+      case Child => ()
+    }
+  }
+}
-- 
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