classes/phing/tasks/system/PhingCallTask.php
public function addReference(PhingReference $r)
    {
        if ($this->callee === null) {
            $this->init();
        }
        $this->callee->addReference($r);
    }
public function addReference(PhingReference $r)
    {
        if ($this->callee === null) {
            $this->init();
        }
        $this->callee->addReference($r);
    }
public function addReference ( PhingReference $ r ) { if ( $ this -> callee === null ) { $ this -> init ( ) ; } $ this -> callee -> addReference ( $ r ) ; }
Reference element identifying a data type to carry
over to the invoked target.

@param PhingReference $r the specified `PhingReference`.
Reference element identifying a data type to carry over to the invoked target .