/**
* Parses the init part of a for-statement.
*
* <code>
* ------------------------
* for ($x = 0, $y = 23, $z = 42; $x < $y; ++$x) {}
* ------------------------
* </code>
*
* @return PHP_Depend_Code_ASTForInit
* @since 0.9.8
*/
private function parseForInit()
{
$this->consumeComments();
if (self::T_SEMICOLON === $this->tokenizer->peek()) {
return null;
}
$this->tokenStack->push();
$init = $this->builder->buildAstForInit();
$this->parseExpressionList($init);
return $this->setNodePositionsAndReturn($init);
}