From 786b8ba0854b71e7bee00248b3ee29da357ba8d0 Mon Sep 17 00:00:00 2001
From: Stephen Blott
Date: Wed, 28 Jan 2015 10:32:53 +0000
Subject: Visual/edit modes: yet more minor changes.

- Use a has for singletons (as it was previously), but with a distinct
  identity generated by Utils.getIdentity.
- Fix counts not be using in a number of places.
---
 lib/utils.coffee | 23 ++++++++++-------------
 1 file changed, 10 insertions(+), 13 deletions(-)

(limited to 'lib/utils.coffee')

diff --git a/lib/utils.coffee b/lib/utils.coffee
index f8eb5457..c04bf417 100644
--- a/lib/utils.coffee
+++ b/lib/utils.coffee
@@ -152,19 +152,16 @@ Utils =
   # locale-sensitive uppercase detection
   hasUpperCase: (s) -> s.toLowerCase() != s
 
-  # Allow a function call to be suppressed.  Use Utils.suppress.unlessSuppressed to call a function, unless it
-  # is suppressed via the given key.  Use Utils.suppressor.suppress to call a function while suppressing the
-  # given key.
-  suppressor: do ->
-    suppressed = {}
-
-    suppress: (key, func) ->
-      suppressed[key] = if suppressed[key]? then suppressed[key] + 1 else 1
-      func()
-      suppressed[key] -= 1
-
-    unlessSuppressed: (key, func) ->
-      func() unless suppressed[key]? and 0 < suppressed[key]
+  # Give objects (including elements) distinct identities.
+  getIdentity: do ->
+    identities = []
+
+    (obj) ->
+      index = identities.indexOf obj
+      if index < 0
+        index = identities.length
+        identities.push obj
+      "identity-" + index
 
 # This creates a new function out of an existing function, where the new function takes fewer arguments. This
 # allows us to pass around functions instead of functions + a partial list of arguments.
-- 
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