From 155d7f48fff84f93b1c1c8399486ed53aacb3a3e Mon Sep 17 00:00:00 2001 From: Jason Freeman Date: Tue, 2 Jun 2015 17:54:08 -0700 Subject: [PATCH] Add hopefully helpful comment --- src/compiler/checker.ts | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/src/compiler/checker.ts b/src/compiler/checker.ts index 4023a4412de..543ab532624 100644 --- a/src/compiler/checker.ts +++ b/src/compiler/checker.ts @@ -7658,6 +7658,11 @@ module ts { if (node.body) { if (!node.type) { + // There are some checks that are only performed in getReturnTypeFromBody, that may produce errors + // we need. An example is the noImplicitAny errors resulting from widening the return expression + // of a function. Because checking of function expression bodies is deferred, there was never an + // appropriate time to do this during the main walk of the file (see the comment at the top of + // checkFunctionExpressionBodies). So it must be done now. getReturnTypeOfSignature(getSignatureFromDeclaration(node)); }