From 732ebf2aeb59e25307986014a55e63281b1415f1 Mon Sep 17 00:00:00 2001
From: Vladimir Matveev <vladima@microsoft.com>
Date: Fri, 30 Jan 2015 18:20:26 -0800
Subject: [PATCH] fix crash in getReturnTypeFromFunctionBody if function
 declaration is incomplete and does not have body

---
 src/compiler/checker.ts                                      | 3 +++
 .../fourslash/errorInIncompleteMethodInObjectLiteral.ts      | 5 +++++
 2 files changed, 8 insertions(+)
 create mode 100644 tests/cases/fourslash/errorInIncompleteMethodInObjectLiteral.ts

diff --git a/src/compiler/checker.ts b/src/compiler/checker.ts
index ed89032b781..00b637301c8 100644
--- a/src/compiler/checker.ts
+++ b/src/compiler/checker.ts
@@ -6525,6 +6525,9 @@ module ts {
 
         function getReturnTypeFromBody(func: FunctionLikeDeclaration, contextualMapper?: TypeMapper): Type {
             var contextualSignature = getContextualSignatureForFunctionLikeDeclaration(func);
+            if (!func.body) {
+                return unknownType;
+            }
             if (func.body.kind !== SyntaxKind.Block) {
                 var type = checkExpressionCached(<Expression>func.body, contextualMapper);
             }
diff --git a/tests/cases/fourslash/errorInIncompleteMethodInObjectLiteral.ts b/tests/cases/fourslash/errorInIncompleteMethodInObjectLiteral.ts
new file mode 100644
index 00000000000..bd498acec5f
--- /dev/null
+++ b/tests/cases/fourslash/errorInIncompleteMethodInObjectLiteral.ts
@@ -0,0 +1,5 @@
+/// <reference path='fourslash.ts'/>
+
+//// var x: { f(): string } = { f( }
+
+verify.numberOfErrorsInCurrentFile(1);
\ No newline at end of file