From 0213a31527b7953b1ad6eb8b15bc30a07c8579ef Mon Sep 17 00:00:00 2001
From: Konstantin Shcheglov <scheglov@google.com>
Date: Tue, 30 Apr 2019 16:58:31 +0000
Subject: [PATCH] Fix for default parameters without name.

R=brianwilkerson@google.com

Change-Id: I2084c6933a4c7b5f1ecf21e5ab3a15e30b718346
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/100886
Reviewed-by: Brian Wilkerson <brianwilkerson@google.com>
---
 pkg/analyzer/lib/src/dart/element/element.dart | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pkg/analyzer/lib/src/dart/element/element.dart b/pkg/analyzer/lib/src/dart/element/element.dart
index 8e6f7ba7e2e70..d1e04ebb9d1a9 100644
--- a/pkg/analyzer/lib/src/dart/element/element.dart
+++ b/pkg/analyzer/lib/src/dart/element/element.dart
@@ -8547,7 +8547,7 @@ class ParameterElementImpl extends VariableElementImpl
     return formalParameters.map((node) {
       if (node is DefaultFormalParameter) {
         NormalFormalParameter parameterNode = node.parameter;
-        var name = parameterNode.identifier.name;
+        var name = parameterNode.identifier?.name ?? '';
         var reference = containerRef.getChild(name);
         reference.node2 = node;
         if (parameterNode is FieldFormalParameter) {