src/vs/editor/browser/widget/codeEditorWidget.ts/EditorDecorationsCollection/set
class EditorDecorationsCollection:	public set(newDecorations: IModelDeltaDecoration[]): void {
		try {
			this._isChangingDecorations = true;
			this._editor.changeDecorations((accessor) => {
				this._decorationIds = accessor.deltaDecorations(this._decorationIds, newDecorations);
			});
		} finally {
			this._isChangingDecorations = false;
		}
	}