nl_tokens: Given a fullName return the corresponding factory .
pl_tokens: function ( fullName ) { validateFullName ( fullName ) ; var normalizedName = this . normalize ( fullName ) ; var cached = this . resolveCache . get ( normalizedName ) ; if ( cached ) { return cached ; } var resolved = this . resolver ( normalizedName ) || this . registry . get ( normalizedName ) ; this . resolveCache . <mask> ( normalizedName , resolved ) ; return resolved ; }