From: Matthijs Kooijman <matthijs@stdin.nl>
Date: Tue, 3 Mar 2009 10:56:05 +0000 (+0100)
Subject: Don't add duplicate name hints.
X-Git-Url: https://git.stderr.nl/gitweb?p=matthijs%2Fmaster-project%2Fc%CE%BBash.git;a=commitdiff_plain;h=ca2a895b27e5cc5a3e4b4da9e94efeb9779e1e79

Don't add duplicate name hints.
---

diff --git a/FlattenTypes.hs b/FlattenTypes.hs
index f75b0d5..44879d0 100644
--- a/FlattenTypes.hs
+++ b/FlattenTypes.hs
@@ -193,8 +193,12 @@ addNameHint :: String -> SignalId -> FlattenState ()
 addNameHint hint id = do
   info <- getSignalInfo id
   let hints = nameHints info
-  let hints' = (hint:hints)
-  setSignalInfo id (info {nameHints = hints'})
+  if hint `elem` hints
+    then do
+      return ()
+    else do
+      let hints' = (hint:hints)
+      setSignalInfo id (info {nameHints = hints'})
 
 -- | Returns the SignalInfo for the given signal. Errors if the signal is not
 --   known in the session.