Hanging indent detection takes into account named parameters and default values of arguments

python/src/com/jetbrains/python/formatter/PyBlock.java

@@ -398,7 +398,16 @@ public class PyBlock implements ASTBlock {
         return !PyTokenTypes.CLOSE_BRACES.contains(elem.getLastChild().getNode().getElementType());
       }
       else {
-        return hasHangingIndent(items[0]);
+        final PsiElement firstItem = items[0];
+        if (firstItem instanceof PyNamedParameter) {
+          final PyExpression defaultValue = ((PyNamedParameter)firstItem).getDefaultValue();
+          return defaultValue != null && hasHangingIndent(defaultValue);
+        }
+        else if (firstItem instanceof PyKeywordArgument) {
+          final PyExpression valueExpression = ((PyKeywordArgument)firstItem).getValueExpression();
+          return valueExpression != null && hasHangingIndent(valueExpression);
+        }
+        return hasHangingIndent(firstItem);
       }
     }
     else {

python/testData/formatter/hangingIndentInNamedArgumentValue.py

@@ -0,0 +1,3 @@
+funcWithLongName(x=[
+],
+        y=42)

python/testData/formatter/hangingIndentInNamedArgumentValue_after.py

@@ -0,0 +1,3 @@
+funcWithLongName(x=[
+],
+    y=42)

python/testData/formatter/hangingIndentInParameterDefaultValue.py

@@ -0,0 +1,5 @@
+def funcWithLongName(x=[
+
+],
+             y=42):
+    pass

python/testData/formatter/hangingIndentInParameterDefaultValue_after.py

@@ -0,0 +1,5 @@
+def funcWithLongName(x=[
+
+],
+        y=42):
+    pass

python/testSrc/com/jetbrains/python/PyFormatterTest.java

@@ -546,6 +546,14 @@ public class PyFormatterTest extends PyTestCase {
     doTest();
   }
 
+  public void testHangingIndentInNamedArgumentValue() {
+    doTest();
+  }
+
+  public void testHangingIndentInParameterDefaultValue() {
+    doTest();
+  }
+
   private CommonCodeStyleSettings getCommonSettings() {
     return settings().getCommonSettings(PythonLanguage.getInstance());
   }