From b4613ab2d26b0546699bad1afd7c9441b324382f Mon Sep 17 00:00:00 2001
From: Victor Berchet <victor@suumit.com>
Date: Thu, 4 Aug 2016 17:04:30 -0700
Subject: [PATCH] fix(ExpressionParser): undefined is undefined (was null)

---
 modules/@angular/compiler/src/expression_parser/parser.ts  | 7 ++++++-
 .../compiler/test/expression_parser/parser_spec.ts         | 2 ++
 2 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/modules/@angular/compiler/src/expression_parser/parser.ts b/modules/@angular/compiler/src/expression_parser/parser.ts
index d72d1b4213..049c5eeae0 100644
--- a/modules/@angular/compiler/src/expression_parser/parser.ts
+++ b/modules/@angular/compiler/src/expression_parser/parser.ts
@@ -511,10 +511,15 @@ export class _ParseAST {
       this.rparensExpected--;
       this.expectCharacter(chars.$RPAREN);
       return result;
-    } else if (this.next.isKeywordNull() || this.next.isKeywordUndefined()) {
+
+    } else if (this.next.isKeywordNull()) {
       this.advance();
       return new LiteralPrimitive(this.span(start), null);
 
+    } else if (this.next.isKeywordUndefined()) {
+      this.advance();
+      return new LiteralPrimitive(this.span(start), void 0);
+
     } else if (this.next.isKeywordTrue()) {
       this.advance();
       return new LiteralPrimitive(this.span(start), true);
diff --git a/modules/@angular/compiler/test/expression_parser/parser_spec.ts b/modules/@angular/compiler/test/expression_parser/parser_spec.ts
index ffd17e4dd1..bbf425ab50 100644
--- a/modules/@angular/compiler/test/expression_parser/parser_spec.ts
+++ b/modules/@angular/compiler/test/expression_parser/parser_spec.ts
@@ -92,6 +92,8 @@ export function main() {
 
       it('should parse null', () => { checkAction('null'); });
 
+      it('should parse undefined', () => { checkAction('undefined'); });
+
       it('should parse unary - expressions', () => {
         checkAction('-1', '0 - 1');
         checkAction('+1', '1');