try finally

← →
Sandman25 © (2004-01-12 11:48) [0]

Доброе время суток.

Читаю Object Pascal Language Guide:
If an exception is raised but not handled in the finally clause, that exception is propagated out of the try...finally statement, and any exception already raised in the try clause is lost. The finally clause should therefore handle all locally raised exceptions, so as not to disturb propagation of other exceptions.

Значит ли это, что рекомендуют писать
try
...
finally
try
...
except
end;
end;
???
Но ведь сами же раньше пишут:
Exceptions provide an elegant way to trap runtime errors without halting the program and without awkward conditional statements. The complexity of Object Pascal’s exception-handling mechanism, however, makes it inefficient, and it should therefore be used judiciously. While it is possible to raise exceptions for almost any reason, and to protect almost any block of code by wrapping it in a try...except or try...finally statement, in practice these tools are best reserved for special situations.

Чему верить?

← →
Anatoly Podgoretsky © (2004-01-12 11:55) [1]

Все правильно написано

[1] Anatoly Podgoretsky © (12.01.04 11:55)

То есть все-таки The finally clause should therefore handle all locally raised exceptions не нужно понимать буквально, а смотреть по ситуации? Понятно. Спасибо.

try finally Найти похожие ветки