From 1d8d3f1134473acdeb58e4515dcf70e60a228c01 Mon Sep 17 00:00:00 2001
From: Anna Kozlova <anna.kozlova@jetbrains.com>
Date: Mon, 26 May 2014 09:45:00 +0400
Subject: [PATCH] lambda: ignore results of assignment is used for expression
 lambda (IDEA-125473)

---
 .../NestedAssignmentInspection.java           |  6 ++--
 .../NestedAssignmentInspectionTest.java       | 36 +++++++++++++++++++
 2 files changed, 38 insertions(+), 4 deletions(-)
 create mode 100644 plugins/InspectionGadgets/testsrc/com/siyeh/ig/assignment/NestedAssignmentInspectionTest.java

diff --git a/plugins/InspectionGadgets/InspectionGadgetsAnalysis/src/com/siyeh/ig/assignment/NestedAssignmentInspection.java b/plugins/InspectionGadgets/InspectionGadgetsAnalysis/src/com/siyeh/ig/assignment/NestedAssignmentInspection.java
index e28f3238282e..d8a2fe116114 100644
--- a/plugins/InspectionGadgets/InspectionGadgetsAnalysis/src/com/siyeh/ig/assignment/NestedAssignmentInspection.java
+++ b/plugins/InspectionGadgets/InspectionGadgetsAnalysis/src/com/siyeh/ig/assignment/NestedAssignmentInspection.java
@@ -15,10 +15,7 @@
  */
 package com.siyeh.ig.assignment;
 
-import com.intellij.psi.PsiAssignmentExpression;
-import com.intellij.psi.PsiElement;
-import com.intellij.psi.PsiExpressionListStatement;
-import com.intellij.psi.PsiExpressionStatement;
+import com.intellij.psi.*;
 import com.siyeh.InspectionGadgetsBundle;
 import com.siyeh.ig.BaseInspection;
 import com.siyeh.ig.BaseInspectionVisitor;
@@ -57,6 +54,7 @@ public class NestedAssignmentInspection extends BaseInspection {
       }
       final PsiElement grandparent = parent.getParent();
       if (parent instanceof PsiExpressionStatement ||
+          parent instanceof PsiLambdaExpression ||
           grandparent instanceof PsiExpressionListStatement) {
         return;
       }
diff --git a/plugins/InspectionGadgets/testsrc/com/siyeh/ig/assignment/NestedAssignmentInspectionTest.java b/plugins/InspectionGadgets/testsrc/com/siyeh/ig/assignment/NestedAssignmentInspectionTest.java
new file mode 100644
index 000000000000..61474dbebf9c
--- /dev/null
+++ b/plugins/InspectionGadgets/testsrc/com/siyeh/ig/assignment/NestedAssignmentInspectionTest.java
@@ -0,0 +1,36 @@
+/*
+ * Copyright 2000-2014 JetBrains s.r.o.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.siyeh.ig.assignment;
+
+import com.intellij.codeInspection.InspectionProfileEntry;
+import com.siyeh.ig.LightInspectionTestCase;
+
+public class NestedAssignmentInspectionTest extends LightInspectionTestCase {
+
+  public void testLambda() throws Exception {
+    doTest("class Test {" +
+           " {" +
+           "    int[] array = new int[1];" +
+           "    Runnable r = () -> array[0] = 0;" +
+           " }" +
+           "}");
+  }
+
+  @Override
+  protected InspectionProfileEntry getInspection() {
+    return new NestedAssignmentInspection();
+  }
+}
\ No newline at end of file