Compiler.php
public function setConfig($name, $value) {
        if (is_null($name)) {
            $this->_config = new ArrayStorage($value);
        } else {
            $this->_config->setDeepValue($name, $value);
        }
        return $this;
    }
public function setConfig($name, $value) {
        if (is_null($name)) {
            $this->_config = new ArrayStorage($value);
        } else {
            $this->_config->setDeepValue($name, $value);
        }
        return $this;
    }
Set config value partially of completely
@param $name
@param $value
@return $this