ID: 29111
Updated by: [EMAIL PROTECTED]
Reported By: trosos at atlas dot cz
-Status: Open
+Status: Wont fix
Bug Type: Feature/Change Request
PHP Version: Irrelevant
Previous Comments:
------------------------------------------------------------------------
[2004-07-12 23:41:48] trosos at atlas dot cz
Description:
------------
In php, you can easily write functions, that consist of one, very large
command (its parts are connected with ANDs and ORs). When use this style
(it is sometimes more then suitable), it is very difficult to use
commands, that have no return value (non-expression commands).
You have written an object-oriented model of exceptions - I feel it
very important, but in case of large-command-style it could not be
used.
php is the language for all situations - why not to make some
alternatives, how to use exceptions, then?
---- What am I requesting to? --
I would like to have an alternative of using exceptions through
expressions (without need of using non-expression commands).
----- How would I solve this? --
- new type: t_exception
- when some function comes to work with an expression in t_exception,
this function makes nothing another and ends with return value in
t_exception
- new unary operator: @@ (or something other)
- new type: t_safeexception
- the result of the @@ operator is value of its parameter; the
difference can be felt when type of parametr is t_exception: in this
case is returned value converted to t_safeexception (this type is
"safe" - it means, that the work with it does not stop the function)
Reproduce code:
---------------
This is only an example code to show, how could seem the
one-command-style. Function f() have not real purpose.
<?php
function f()
{
$Result=0;
while
(((
!is_numeric($foo = foo())
)
or
(
($Result += 2*$foo) or True
)
)
and
(
##bar() !==exception
)
) {};
return($Result);
}
?>
There, we are not interested in, whether foo() returns a t_exception
value (if it does so, function f() returns t_exception too); but if
bar() returns a t_exception value, function f() regularly ends and
returns $Result.
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--
Edit this bug report at http://bugs.php.net/?id=29111&edit=1
