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Request #62404 Add checked exceptions, please
Submitted: 2012-06-24 19:23 UTC Modified: 2015-08-24 13:56 UTC
Votes:7
Avg. Score:3.0 ± 1.1
Reproduced:2 of 5 (40.0%)
Same Version:1 (50.0%)
Same OS:1 (50.0%)
From: normandiggs at gmail dot com Assigned: cmb (profile)
Status: Closed Package: Class/Object related
PHP Version: 5.4.4 OS:
Private report: No CVE-ID: None
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 [2012-06-24 19:23 UTC] normandiggs at gmail dot com 
Description:
------------
Please, add Checked Exceptions to PHP (from Java).

Test script:
---------------
<?php

Class Example
{
    public function SomeFunction() throws \PDOException, \Some\Interface
    {
        //...
    }
}

Class Check
{
    protected function CheckItWrong()
    {
        $Example = new Example;
        // please, generate "warning" here, because "try-catch" 
        // with necessary types wasn't declared around call.
        $Example->SomeFunction();
    }
}

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 [2012-06-25 09:50 UTC] laruence@php.net 
I have discussed with ekneuss about this FR for a bit.

thanks to ekneuss, we found there are some limits, 

1. since PHP is a dynamic language, then for $obj->function, we can not 
determine what $obj is, so if we want to implement this FR, we have to do the 
check at run-time.

2. there is another question while for following codes:
   function bar($i) {
       if ($i == 42) {
          $obj->someFuncThrowException();
       }
   }
   so,  should we trigger WARNING all the times?

3. unlesss ZEND_CATCH is executed, we have no idea what type of exception will 
be caught by catch, so, if we implement a whole exception type check, we will 
need: exception autoload, and catch statements analyse , which will bring a 
obvious performance slow down..

anyway, I can do more research later , thanks :)
 [2012-06-25 17:12 UTC] normandiggs at gmail dot com 
I think one my wish should not be the reason of performance slowdown in all 
scripts, which use try-catch.
Thanks for your time and explanation. Close this ticket please.
 [2015-08-24 13:56 UTC] cmb@php.net
-Status: Open +Status: Closed -Assigned To: +Assigned To: cmb
 [2015-08-24 13:56 UTC] cmb@php.net 
Closed on OP's request.
 
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