Merge pull request #1091 from paulp/topic/patmat-error-messages

Better pattern matcher error message.

1 files changed, 29 insertions, 0 deletions

diff --git a/test/files/neg/newpat_unreachable.scala b/test/files/neg/newpat_unreachable.scala
new file mode 100644
index 0000000000..c9cc85cec6
--- /dev/null
+++ b/test/files/neg/newpat_unreachable.scala
@@ -0,0 +1,29 @@
+object Test {
+  class A {
+    val d = 55
+
+    def contrivedExample[A, B, C](a: A, b: B, c: C): Unit = a match {
+      case b => println("matched b")
+      case c => println("matched c")
+      case d => println("matched d")
+      case _ => println("matched neither")
+    }
+
+    def correctExample[A, B, C](a: A, b: B, c: C): Unit = a match {
+      case `b` => println("matched b")
+      case `c` => println("matched c")
+      case `d` => println("matched d")
+      case _ => println("matched neither")
+    }
+
+    def f[A](a: A) = {
+      def g[B](b: B) = {
+        def h[C](c: C) = a match {
+          case b => 1
+          case c => 2
+          case _ => 3
+        }
+      }
+    }
+  }
+}