Anonymous user
Exceptions/Catch an exception thrown in a nested call: Difference between revisions
Exceptions/Catch an exception thrown in a nested call (view source)
Revision as of 03:55, 13 July 2016
, 7 years agoAdded Io entry
(Added Io entry) |
|||
Line 1,376:
Note: it may be possible to implement exceptions in Icon; however,
it would require a major rework and would likely be inelegant.
=={{header|Io}}==
<lang Io>U0 := Exception clone
U1 := Exception clone
foo := method(
for(i,1,2,
try(
bar(i)
)catch( U0,
"foo caught U0" print
)pass
)
)
bar := method(n,
baz(n)
)
baz := method(n,
if(n == 1,U0,U1) raise("baz with n = #{n}" interpolate)
)
foo</lang>
{{out}}
<pre>foo caught U0
U1: baz with n = 2
---------
U1 raise exceptions_catch_nested.io 34
Object baz exceptions_catch_nested.io 31
Object bar exceptions_catch_nested.io 24</pre>
The first line comes from when U0 was caught and the second from when U1 was raised and not caught. This is followed by a traceback with the most recent call first.
=={{header|J}}==
| |||