From 762b640aca41ab1a6250cb3ad6e026bae6fd4e1b Mon Sep 17 00:00:00 2001
From: Alex Dima <alexdima@microsoft.com>
Date: Thu, 4 Feb 2016 23:31:02 +0100
Subject: [PATCH] Skip no-ops

---
 src/vs/editor/common/model/editableTextModel.ts | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/src/vs/editor/common/model/editableTextModel.ts b/src/vs/editor/common/model/editableTextModel.ts
index 80d792301e7..b48778cfcf2 100644
--- a/src/vs/editor/common/model/editableTextModel.ts
+++ b/src/vs/editor/common/model/editableTextModel.ts
@@ -16,7 +16,6 @@ import Errors = require('vs/base/common/errors');
 
 export interface IDeltaSingleEditOperation {
 	original: IValidatedEditOperation;
-	isNoOp: boolean;
 	deltaStartLineNumber: number;
 	deltaStartColumn: number;
 	deltaEndLineNumber: number;
@@ -231,11 +230,6 @@ export class EditableTextModel extends TextModelWithDecorations implements Edito
 
 		return {
 			original: operation,
-			isNoOp: (
-				operation.range.startLineNumber === operation.range.endLineNumber
-				&& operation.range.startColumn === operation.range.endColumn
-				&& (!operation.lines || operation.lines.length === 0)
-			),
 			deltaStartLineNumber: deltaStartLineNumber,
 			deltaStartColumn: deltaStartColumn,
 			deltaEndLineNumber: deltaEndLineNumber,
@@ -349,6 +343,11 @@ export class EditableTextModel extends TextModelWithDecorations implements Edito
 				let endLineNumber = op.range.endLineNumber;
 				let endColumn = op.range.endColumn;
 
+				if (startLineNumber === endLineNumber && startColumn === endColumn && (!op.lines || op.lines.length === 0)) {
+					// no-op
+					continue;
+				}
+
 				let deletingLinesCnt = endLineNumber - startLineNumber;
 				let insertingLinesCnt = (op.lines ? op.lines.length - 1 : 0);
 				let editingLinesCnt = Math.min(deletingLinesCnt, insertingLinesCnt);
-- 
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