From e6f5c7012c54ab1a4d93bde3749fb426a556e53e Mon Sep 17 00:00:00 2001
From: Ilya Ryzhenkov <orangy@jetbrains.com>
Date: Wed, 28 May 2014 15:53:56 +0400
Subject: [PATCH] Stream.filterIsInstance has wrong return type #KT-5097 Fixed

---
 libraries/stdlib/src/generated/_SpecialJVM.kt                 | 4 ++--
 libraries/tools/kotlin-stdlib-gen/src/templates/SpecialJVM.kt | 4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/libraries/stdlib/src/generated/_SpecialJVM.kt b/libraries/stdlib/src/generated/_SpecialJVM.kt
index ec882315705..1f75142a77a 100644
--- a/libraries/stdlib/src/generated/_SpecialJVM.kt
+++ b/libraries/stdlib/src/generated/_SpecialJVM.kt
@@ -341,8 +341,8 @@ public fun <T, R : T> Iterable<T>.filterIsInstance(klass: Class<R>): List<R> {
 /**
  * Returns a stream containing all elements that are instances of specified class
  */
-public fun <T, R : T> Stream<T>.filterIsInstance(klass: Class<R>): Stream<T> {
-    return FilteringStream(this, true, { klass.isInstance(it) })
+public fun <T, R : T> Stream<T>.filterIsInstance(klass: Class<R>): Stream<R> {
+    return FilteringStream(this, true, { klass.isInstance(it) }) as Stream<R>
 }
 
 /**
diff --git a/libraries/tools/kotlin-stdlib-gen/src/templates/SpecialJVM.kt b/libraries/tools/kotlin-stdlib-gen/src/templates/SpecialJVM.kt
index b47b9e59fdf..73df13859f2 100644
--- a/libraries/tools/kotlin-stdlib-gen/src/templates/SpecialJVM.kt
+++ b/libraries/tools/kotlin-stdlib-gen/src/templates/SpecialJVM.kt
@@ -99,10 +99,10 @@ fun specialJVM(): List<GenericFunction> {
         exclude(ArraysOfPrimitives, Strings)
 
         doc(Streams) { "Returns a stream containing all elements that are instances of specified class" }
-        returns(Streams) { "Stream<T>" }
+        returns(Streams) { "Stream<R>" }
         body(Streams) {
             """
-            return FilteringStream(this, true, { klass.isInstance(it) })
+            return FilteringStream(this, true, { klass.isInstance(it) }) as Stream<R>
             """
         }
     }