Re: About `catch' and `throw'

[Stefan Monnier <monnier@iro.umontreal.ca>]

> During the evaluation of code that is lexically inside the `catch',
> a `throw' that is evaluated throws back to that `catch'.

Usually, but not always.

> And if there is more than one `catch' with the same label then it
> throws to the one that is lexically nearest (i.e., innermost, outside
> the `throw'), which is also the most recent.

Usually, but not always:

  (catch 'foo
    (let ((f (lambda () (throw 'foo))))
      ...
      (catch 'foo
        (funcall f))
      ...))

will throw to the inner catch, not the outer one.


        Stefan