Fix bug: In findAllReferences, don't crash on static method missing body (microsoft#24814)

Andy · web-flow · commit 986532d36bce · 2018-06-11T08:43:17.000-07:00
diff --git a/src/services/findAllReferences.ts b/src/services/findAllReferences.ts
@@ -1035,14 +1035,16 @@ namespace ts.FindAllReferences.Core {
             if (!(isMethodOrAccessor(member) && hasModifier(member, ModifierFlags.Static))) {
                 continue;
             }
-            member.body!.forEachChild(function cb(node) {
-                if (node.kind === SyntaxKind.ThisKeyword) {
-                    addRef(node);
-                }
-                else if (!isFunctionLike(node)) {
-                    node.forEachChild(cb);
-                }
-            });
+            if (member.body) {
+                member.body.forEachChild(function cb(node) {
+                    if (node.kind === SyntaxKind.ThisKeyword) {
+                        addRef(node);
+                    }
+                    else if (!isFunctionLike(node)) {
+                        node.forEachChild(cb);
+                    }
+                });
+            }
         }
     }
 
diff --git a/tests/cases/fourslash/findAllRefsDeclareClass.ts b/tests/cases/fourslash/findAllRefsDeclareClass.ts
@@ -0,0 +1,7 @@
+/// <reference path="fourslash.ts" />
+
+////declare class [|{| "isWriteAccess": true, "isDefinition": true |}C|] {
+////    static m(): void;
+////}
+
+verify.singleReferenceGroup("class C");
