/**
* This method parses a conditional-expression.
*
* <code>
* --------------
* $foo = ($bar ? 42 : 23);
* --------------
* </code>
*
* @return PHP_Depend_Code_ASTConditionalExpression
* @since 0.9.8
*/
private function parseConditionalExpression()
{
$this->tokenStack->push();
$this->consumeToken(self::T_QUESTION_MARK);
$expr = $this->builder->buildAstConditionalExpression();
if (($child = $this->parseOptionalExpression()) != null) {
$expr->addChild($child);
}
$this->consumeToken(self::T_COLON);
$expr->addChild($this->parseExpression());
return $this->setNodePositionsAndReturn($expr);
}