/**
* 处理赋值语句右边的三元表达式
* @param unknown $part
* @param unknown $dataFlow
*/
public static function ternaryHandler($type, $part, $dataFlow)
{
$ter_symbol = new MutipleSymbol();
$ter_symbol->setItemByNode($part);
if ($type == 'right') {
$dataFlow->setValue($ter_symbol);
}
}
/**
* 根据AST node获取相应的symbol
* @param unknown $node
*/
public static function getSymbolByNode($node)
{
if ($node && SymbolUtils::isValue($node)) {
//在DataFlow加入Location以及name
$vs = new ValueSymbol();
$vs->setValueByNode($node);
return $vs;
} elseif ($node && SymbolUtils::isVariable($node)) {
//加入dataFlow
$vars = new VariableSymbol();
$vars->setNameByNode($node);
$vars->setValue($node);
return $vars;
} elseif ($node && SymbolUtils::isArrayDimFetch($node)) {
//加入dataFlow
$arr = new ArrayDimFetchSymbol();
$arr->setValue($node);
return $arr;
} elseif ($node && SymbolUtils::isConcat($node)) {
$concat = new ConcatSymbol();
$concat->setItemByNode($node);
return $concat;
} elseif ($node && $node->getType() == "Scalar_Encapsed") {
$arr = array();
$symbol = new MutipleSymbol();
foreach ($node->parts as $item) {
if (is_object($item) && self::isValue($item) == false) {
$sym = self::getSymbolByNode($item);
array_push($arr, $sym);
}
}
$symbol->setSymbols($arr);
return $symbol;
} else {
return null;
}
}