From d0d187f36aa6452f00b6370fd4e1e5ef528cfce9 Mon Sep 17 00:00:00 2001
From: Max Brunsfeld <maxbrunsfeld@gmail.com>
Date: Fri, 30 Dec 2016 16:43:44 -0800
Subject: [PATCH] Reduce the impact of leaking Editor, Selection, & Cursor
 objects

Signed-off-by: Nathan Sobo <nathan@github.com>
---
 src/cursor.coffee      |  1 +
 src/selection.coffee   |  2 ++
 src/text-editor.coffee | 17 ++++++++++++++---
 3 files changed, 17 insertions(+), 3 deletions(-)

diff --git a/src/cursor.coffee b/src/cursor.coffee
index 85573f10e..05242f90a 100644
--- a/src/cursor.coffee
+++ b/src/cursor.coffee
@@ -26,6 +26,7 @@ class Cursor extends Model
 
   destroy: ->
     @marker.destroy()
+    @marker = null
 
   ###
   Section: Event Subscription
diff --git a/src/selection.coffee b/src/selection.coffee
index 8aa86157e..18297e5f7 100644
--- a/src/selection.coffee
+++ b/src/selection.coffee
@@ -26,6 +26,8 @@ class Selection extends Model
 
   destroy: ->
     @marker.destroy()
+    @marker = null
+    @decoration = null
 
   isLastSelection: ->
     this is @editor.getLastSelection()
diff --git a/src/text-editor.coffee b/src/text-editor.coffee
index 3ee268b95..f3fb7abdb 100644
--- a/src/text-editor.coffee
+++ b/src/text-editor.coffee
@@ -408,16 +408,27 @@ class TextEditor extends Model
       @emitter.emit 'did-change', {}
 
   destroyed: ->
+    @emitter.emit 'did-destroy'
+    @emitter = null
     @disposables.dispose()
     @displayLayer.destroy()
-    @disposables.dispose()
+    @displayLayer = null
+    @defaultMarkerLayer = null
     @tokenizedBuffer.destroy()
+    @tokenizedBuffer = null
     selection.destroy() for selection in @selections.slice()
-    @selectionsMarkerLayer.destroy()
+    @selections = null
+    @cursors = null
+    @selectionsMarkerLayer = null
     @buffer.release()
+    @buffer = null
+    @decorationManager = null
     @languageMode.destroy()
+    @languageMode = null
     @gutterContainer.destroy()
-    @emitter.emit 'did-destroy'
+    @gutterContainer = null
+    @editorElement = null
+    @presenter = null
 
   ###
   Section: Event Subscription