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authorGuillaume Martres <smarter@ubuntu.com>2017-04-04 19:17:42 +0200
committerGuillaume Martres <smarter@ubuntu.com>2017-04-04 20:24:35 +0200
commit6ae376a4544cbf93b94dc0a6ba4a78224e0477df (patch)
tree444b619989a686f66b74a963d238c318ff847aa2 /tests/pos/leak-inferred.scala
parent42c2a6fbbddf73ef2faeb6204c2b7521a76d7345 (diff)
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checkNoPrivateLeaks: Do not allow types to refer to leaky aliases
`checkNoPrivateLeaks` can force a lot of things, this lead to hard-to-reproduce issues in unpickling because we called `checkNoPrivateLeaks` on the type parameters of a class before anything in the class was indexed. We fix this by making sure that `checkNoPrivateLeaks` never transforms type symbols, only term symbols, therefore we can unpickle type parameters without forcing too many things. tests/neg/leak-type.scala illustrates the new restriction that this necessitates.
Diffstat (limited to 'tests/pos/leak-inferred.scala')
-rw-r--r--tests/pos/leak-inferred.scala12
1 files changed, 12 insertions, 0 deletions
diff --git a/tests/pos/leak-inferred.scala b/tests/pos/leak-inferred.scala
new file mode 100644
index 000000000..5d8a7e3bc
--- /dev/null
+++ b/tests/pos/leak-inferred.scala
@@ -0,0 +1,12 @@
+class A {
+ private val x = List(1,2)
+
+ val elem = x.head
+}
+
+class B extends A {
+ val a: Int = elem
+ // Without `checkNoPrivateLeaks`, we get:
+ // found: B.this.x.scala$collection$immutable$List$$A(B.this.elem)
+ // required: Int
+}