fix: memoize this.DecorationManagement

Author: aminya

lib/minimap.js

@@ -1066,20 +1066,23 @@ export default class Minimap {
    * @return {DecorationManagement}
    */
   getDecorationManagement () {
-    return this.minimapElement.DecorationManagement
+    if (this.DecorationManagement === undefined) {
+      this.DecorationManagement = this.minimapElement.DecorationManagement
+    }
+    return this.DecorationManagement
   }
 
   // Decoration API duplicated for backward compatibility in the service
-  getDecorations () { return this.minimapElement.DecorationManagement.getDecorations() }
-  onDidAddDecoration (...args) { return this.minimapElement.DecorationManagement.onDidAddDecoration(...args) }
-  onDidRemoveDecoration (...args) { return this.minimapElement.DecorationManagement.onDidRemoveDecoration(...args) }
-  onDidChangeDecorationRange (...args) { return this.minimapElement.DecorationManagement.onDidChangeDecorationRange(...args) }
-  onDidUpdateDecoration (...args) { return this.minimapElement.DecorationManagement.onDidUpdateDecoration(...args) }
-  decorationForId (...args) { return this.minimapElement.DecorationManagement.decorationForId(...args) }
-  decorationsForScreenRowRange (...args) { return this.minimapElement.DecorationManagement.decorationsForScreenRowRange(...args) }
-  decorationsByTypeThenRows () { return this.minimapElement.DecorationManagement.decorationsByTypeThenRows() }
-  decorateMarker (...args) { return this.minimapElement.DecorationManagement.decorateMarker(...args) }
-  removeDecoration (...args) { return this.minimapElement.DecorationManagement.removeDecoration(...args) }
-  removeAllDecorationsForMarker (...args) { return this.minimapElement.DecorationManagement.removeAllDecorationsForMarker(...args) }
-  removeAllDecorations () { return this.minimapElement.DecorationManagement.removeAllDecorations() }
+  getDecorations () { return this.getDecorationManagement().getDecorations() }
+  onDidAddDecoration (...args) { return this.getDecorationManagement().onDidAddDecoration(...args) }
+  onDidRemoveDecoration (...args) { return this.getDecorationManagement().onDidRemoveDecoration(...args) }
+  onDidChangeDecorationRange (...args) { return this.getDecorationManagement().onDidChangeDecorationRange(...args) }
+  onDidUpdateDecoration (...args) { return this.getDecorationManagement().onDidUpdateDecoration(...args) }
+  decorationForId (...args) { return this.getDecorationManagement().decorationForId(...args) }
+  decorationsForScreenRowRange (...args) { return this.getDecorationManagement().decorationsForScreenRowRange(...args) }
+  decorationsByTypeThenRows () { return this.getDecorationManagement().decorationsByTypeThenRows() }
+  decorateMarker (...args) { return this.getDecorationManagement().decorateMarker(...args) }
+  removeDecoration (...args) { return this.getDecorationManagement().removeDecoration(...args) }
+  removeAllDecorationsForMarker (...args) { return this.getDecorationManagement().removeAllDecorationsForMarker(...args) }
+  removeAllDecorations () { return this.getDecorationManagement().removeAllDecorations() }
 }