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-rw-r--r--test/files/pos/fun_undo_eta.scala10
1 files changed, 10 insertions, 0 deletions
diff --git a/test/files/pos/fun_undo_eta.scala b/test/files/pos/fun_undo_eta.scala
new file mode 100644
index 0000000000..466b0e2629
--- /dev/null
+++ b/test/files/pos/fun_undo_eta.scala
@@ -0,0 +1,10 @@
+class Test {
+ def m(i: Int) = i
+
+ def expectWild[A](f: A) = ???
+ def expectFun[A](f: A => Int) = ???
+
+ expectWild((i => m(i))) // manual eta expansion
+ expectWild(m(_)) // have to undo eta expansion with wildcard expected type
+ expectFun(m(_)) // have to undo eta expansion with function expected type
+}