aghh.. - the previous example was crap
The priciple it was try to make was that
.... require_once 'MyException.php' throw MyException(....); ....
then trying to catch MyException leads to a parse error when it's try()'d and not loaded. means we cant lazy load any Exceptions, and save file io/memory etc.
Regards Alan
Alan Knowles wrote:
This is a simple example of why making a parse error out of undefined Exception types is going to be very problematic.
function test($a) {
if (!extension_exists('sqlite')) {
return;
}
try {
SQLite::query($a);
// parse error!!! - if we dont have sqlite, we dont have SQLite exception!
} catch(SQLite_Exception $e) {
echo "problem with query"; return; } }
This has a big knock on effect that we can not lazy load Exception definitions, even if they are only used in Exceptional situations. (its pretty much the same issue as instanceof - forcing the loading of code, that may never be used, except to test it's non-existance.)
Regards Alan
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