lib/walker.js
function init (done) {
    var node = tools.match_ext(filename, 'node')
    var json = tools.match_ext(filename, 'json')

    done(null, {
      content: content,
      json: json,
      node: node,
      // all other files are considered as javascript files.
      js: !node && !json,
    })
  }
function init (done) {
    var node = tools.match_ext(filename, 'node')
    var json = tools.match_ext(filename, 'json')

    done(null, {
      content: content,
      json: json,
      node: node,
      // all other files are considered as javascript files.
      js: !node && !json,
    })
  }
function init ( done ) { var node = tools . match_ext ( filename , 'node' ) var json = tools . match_ext ( filename , 'json' ) done ( null , { content : content , json : json , node : node , // all other files are considered as javascript files. js : ! node && ! json , } ) }
If no registered compilers, just return
If no registered compilers just return