From ba123f081f05c46475248a1309df406a2c766dce Mon Sep 17 00:00:00 2001 From: Jason Zaugg Date: Sat, 12 May 2012 15:19:08 +0200 Subject: Confirm extractor based pattern matches don't explode exponentially. Closes SI-1133, thanks virtpatmat. --- test/files/pos/t1133.scala | 32 ++++++++++++++++++++++++++++++++ 1 file changed, 32 insertions(+) create mode 100644 test/files/pos/t1133.scala diff --git a/test/files/pos/t1133.scala b/test/files/pos/t1133.scala new file mode 100644 index 0000000000..4538de5f5f --- /dev/null +++ b/test/files/pos/t1133.scala @@ -0,0 +1,32 @@ +object Match +{ + def main(args: Array[String]) = { + args(0) match { + case Extractor1(Extractor2(Extractor3("dog", "dog", "dog"), x2, x3), b, c, Extractor3("b", "b", f), e) => println(e) + case Extractor3(Extractor2(Extractor1("a", "aa", "aaa", "aa", "a"), Extractor2("a", "aa", "aaa"), e), y, z) => println(e) + case Extractor2(Extractor3("a", "a", x), Extractor3("b", "b", y), Extractor3("c", "c", z)) => println(z) + case _ => println("fail") + } + } + + object Extractor1 { + def unapply(x: Any) = x match { + case x: String => Some(x, x+x, x+x+x, x+x, x) + case _ => None + } + } + + object Extractor2 { + def unapply(x: Any) = x match { + case x: String => Some(x, x+x, x+x+x) + case _ => None + } + } + + object Extractor3 { + def unapply(x: Any) = x match { + case x: String => Some(x, x, x) + case _ => None + } + } +} -- cgit v1.2.3