From e8d4cf82314e367a55310f8adcbd10131f62efb9 Mon Sep 17 00:00:00 2001
From: Daniel Rosenwasser <drosen@microsoft.com>
Date: Thu, 14 Jan 2016 11:01:21 -0800
Subject: [PATCH] Documented the 'ReportErrors' enum.

---
 src/compiler/checker.ts | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

diff --git a/src/compiler/checker.ts b/src/compiler/checker.ts
index 6414d4d87e1..4a73e071061 100644
--- a/src/compiler/checker.ts
+++ b/src/compiler/checker.ts
@@ -3,8 +3,20 @@
 /* @internal */
 namespace ts {
     const enum ReportErrors {
-        None = 0,
+        /**
+         * Do not report errors at all.
+         */
+        None,
+        /**
+         * Report errors in any fashion if any are encountered.
+         * This option implies that if an error has already been cached for a relationship
+         * between two types, it is okay to use the top-level error without elaboration.
+         */
         Basic,
+        /**
+         * Always force elaboration when comparing two types,
+         * even if the relation has been cached
+         */
         Elaborate,
     }