lib/check.js
function check(filename) {
  this.filename = filename && path.resolve(filename) || '';
  this.types = [];
  this.valid = null;
}
function check(filename) {
  this.filename = filename && path.resolve(filename) || '';
  this.types = [];
  this.valid = null;
}
function check ( filename ) { this . filename = filename && path . resolve ( filename ) || '' ; this . types = [ ] ; this . valid = null ; }
Initialize a new `check` with the given filename.

@param {String} filename
@api private
Initialize a new check with the given filename .