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-rw-r--r--src/library/scala/util/parsing/ast/Binders.scala3
1 files changed, 2 insertions, 1 deletions
diff --git a/src/library/scala/util/parsing/ast/Binders.scala b/src/library/scala/util/parsing/ast/Binders.scala
index 8019306524..0646f57064 100644
--- a/src/library/scala/util/parsing/ast/Binders.scala
+++ b/src/library/scala/util/parsing/ast/Binders.scala
@@ -8,6 +8,7 @@
package scala.util.parsing.ast
+import scala.collection.AbstractIterable
import scala.collection.mutable
//DISCLAIMER: this code is highly experimental!
@@ -83,7 +84,7 @@ trait Binders extends AbstractSyntax with Mappable {
* For example: `[x, y]!1` represents the scope with `id` `1` and binder elements `x` and `y`.
* (`id` is solely used for this textual representation.)
*/
- class Scope[binderType <: NameElement] extends Iterable[binderType]{
+ class Scope[binderType <: NameElement] extends AbstractIterable[binderType] with Iterable[binderType] {
private val substitution: mutable.Map[binderType, Element] =
new mutable.LinkedHashMap[binderType, Element] // a LinkedHashMap is ordered by insertion order -- important!