Function methodOp

samples/common/codehighlight/codemirror.js:3936–3943

(f)

  // Used to add methods to editor and doc instances, wrapping them in
  // operations.
  function methodOp(f) {
    return function() {
      if (this.curOp) { return f.apply(this, arguments) }
      startOperation(this);
      try { return f.apply(this, arguments) }
      finally { endOperation(this); }
    }
  }
  function docMethodOp(f) {
    return function() {
      var cm = this.cm;