/**
* This method parses a simple PHP variable.
*
* @return PHP_Depend_Code_ASTVariable
* @throws PHP_Depend_Parser_UnexpectedTokenException When the actual token
* is not a valid variable token.
* @since 0.9.6
*/
private function parseVariable()
{
$token = $this->consumeToken(self::T_VARIABLE);
$variable = $this->builder->buildAstVariable($token->image);
$variable->configureLinesAndColumns($token->startLine, $token->endLine, $token->startColumn, $token->endColumn);
return $variable;
}