[Gutter] Fix coffeescript style issues

spec/display-buffer-spec.coffee

@@ -1373,7 +1373,7 @@ describe "DisplayBuffer", ->
       [marker] = []
 
       beforeEach ->
-        marker = displayBuffer.markBufferRange([[1, 0], [1, 0]]);
+        marker = displayBuffer.markBufferRange([[1, 0], [1, 0]])
 
       it "creates a decoration that is both of 'line-number' and 'gutter' type when called with the 'line-number' type", ->
         decorationProperties = {type: 'line-number', class: 'one'}
@@ -1384,7 +1384,7 @@ describe "DisplayBuffer", ->
         expect(decoration.getProperties().class).toBe 'one'
 
       it "creates a decoration that is only of 'gutter' type if called with the 'gutter' type and a 'gutterName'", ->
-        decorationProperties = {type: 'gutter', gutterName:'test-gutter', class: 'one'}
+        decorationProperties = {type: 'gutter', gutterName: 'test-gutter', class: 'one'}
         decoration = displayBuffer.decorateMarker(marker, decorationProperties)
         expect(decoration.isType('gutter')).toBe true
         expect(decoration.isType('line-number')).toBe false

spec/gutter-container-component-spec.coffee

@@ -86,14 +86,14 @@ describe "GutterContainerComponent", ->
       expect(gutterContainerComponent.getDomNode().children.item(0)).toBe expectedCustomGutterNode
 
   it "removes a gutter from the DOM if it does not appear in the latest state update", ->
-      lineNumberGutter = new Gutter(mockGutterContainer, {name: 'line-number'})
-      testState = buildTestState([{gutter: lineNumberGutter, visible: true}])
-      gutterContainerComponent.updateSync(testState)
+    lineNumberGutter = new Gutter(mockGutterContainer, {name: 'line-number'})
+    testState = buildTestState([{gutter: lineNumberGutter, visible: true}])
+    gutterContainerComponent.updateSync(testState)
 
-      expect(gutterContainerComponent.getDomNode().children.length).toBe 1
-      testState = buildTestState([])
-      gutterContainerComponent.updateSync(testState)
-      expect(gutterContainerComponent.getDomNode().children.length).toBe 0
+    expect(gutterContainerComponent.getDomNode().children.length).toBe 1
+    testState = buildTestState([])
+    gutterContainerComponent.updateSync(testState)
+    expect(gutterContainerComponent.getDomNode().children.length).toBe 0
 
   describe "when updated with multiple gutters", ->
     it "positions (and repositions) the gutters to match the order they appear in each state update", ->

spec/gutter-spec.coffee

@@ -46,9 +46,9 @@ describe 'Gutter', ->
     [mockGutterContainer, mockGutterContainerRemovedGutters] = []
 
     beforeEach ->
-      mockGutterContainerRemovedGutters = [];
+      mockGutterContainerRemovedGutters = []
       mockGutterContainer = removeGutter: (destroyedGutter) ->
-         mockGutterContainerRemovedGutters.push destroyedGutter
+        mockGutterContainerRemovedGutters.push destroyedGutter
 
     it 'removes the gutter from its container.', ->
       gutter = new Gutter mockGutterContainer, {name}

src/custom-gutter-component.coffee

@@ -32,7 +32,7 @@ class CustomGutterComponent
     newDimensionsAndBackgroundState = state.gutters
     setDimensionsAndBackground(@oldDimensionsAndBackgroundState, newDimensionsAndBackgroundState, @decorationsNode)
 
-    @oldDecorationPositionState ?= {};
+    @oldDecorationPositionState ?= {}
     decorationState = state.gutters.customDecorations[@gutter.name]
 
     updatedDecorationIds = new Set
@@ -59,7 +59,7 @@ class CustomGutterComponent
 
   # Builds and returns an HTMLElement to represent the specified decoration.
   buildDecorationNode: (decorationId, decorationInfo) ->
-    @oldDecorationPositionState[decorationId] = {};
+    @oldDecorationPositionState[decorationId] = {}
     newNode = document.createElement('div')
     newNode.style.position = 'absolute'
     @updateDecorationNode(newNode, decorationId, decorationInfo)
@@ -68,7 +68,7 @@ class CustomGutterComponent
   # Updates the existing HTMLNode with the new decoration info. Attempts to
   # minimize changes to the DOM.
   updateDecorationNode: (node, decorationId, newDecorationInfo) ->
-    oldPositionState = @oldDecorationPositionState[decorationId];
+    oldPositionState = @oldDecorationPositionState[decorationId]
 
     if oldPositionState.top isnt newDecorationInfo.top + 'px'
       node.style.top = newDecorationInfo.top + 'px'

src/gutter-container-component.coffee

@@ -72,7 +72,7 @@ class GutterContainerComponent
           existingGutterComponentDescription = @gutterComponents[indexInOldGutters]
           existingGutterComponent = existingGutterComponentDescription.component
           indexInOldGutters++
-          if existingGutterComponent == gutterComponent
+          if existingGutterComponent is gutterComponent
             matchingGutterFound = true
             break
         if not matchingGutterFound
@@ -82,7 +82,7 @@ class GutterContainerComponent
           @domNode.appendChild(gutterComponent.getDomNode())
 
       else
-        if indexInOldGutters == oldGuttersLength
+        if indexInOldGutters is oldGuttersLength
           @domNode.appendChild(gutterComponent.getDomNode())
         else
           @domNode.insertBefore(gutterComponent.getDomNode(), @domNode.children[indexInOldGutters])

src/gutter-container.coffee

@@ -30,7 +30,7 @@ class GutterContainer
   addGutter: (options) ->
     options = options ? {}
     gutterName = options.name
-    if gutterName == null
+    if gutterName is null
       throw new Error('A name is required to create a gutter.')
     if @gutterWithName(gutterName)
       throw new Error('Tried to create a gutter with a name that is already in use.')
@@ -54,7 +54,7 @@ class GutterContainer
 
   gutterWithName: (name) ->
     for gutter in @gutters
-      if gutter.name == name then return gutter
+      if gutter.name is name then return gutter
     null
 
   ###

src/text-editor-presenter.coffee

@@ -388,9 +388,9 @@ class TextEditorPresenter
 
   updateCommonGutterState: ->
     @state.gutters.backgroundColor = if @gutterBackgroundColor isnt "rgba(0, 0, 0, 0)"
-        @gutterBackgroundColor
-      else
-        @backgroundColor
+      @gutterBackgroundColor
+    else
+      @backgroundColor
 
   didAddGutter: (gutter) ->
     gutterDisposables = new CompositeDisposable