```sh
$ git grep currentLocation
bin/traceur.js:      this.currentLocation = tree.location;
bin/traceur.js:      if (this.currentLocation) this.addMapping();
bin/traceur.js:      var start = this.currentLocation.start;
src/outputgeneration/ParseTreeMapWriter.js:    if (this.currentLocation)
src/outputgeneration/ParseTreeMapWriter.js:    var start = this.currentLocation.start;
src/outputgeneration/ParseTreeWriter.js:    this.currentLocation = tree.location;
```