catch: Difference between revisions
Jump to navigation
Jump to search
Lou Montana (talk | contribs) m (Text replacement - " <h3 style="display:none">Notes</h3> <dl class="command_description"> <!-- Note Section BEGIN --> <!-- Note Section END --> </dl> " to "") |
Lou Montana (talk | contribs) m (Text replacement - " *\| *([Cc]omments|COMMENTS|Game|[Gg]ame [Nn]ame|Game [Vv]ersion|Game Version \(number surrounded by NO SPACES\)|Multiplayer Arguments( \("local" or "global"\))?|Effects|Multiplayer Effects( \("local" or "global"\))?|Multiplayer Exe...) |
||
| Line 1: | Line 1: | ||
{{Command | {{Command | ||
| arma1 | | arma1 | ||
|gr1= Program Flow | |gr1= Program Flow | ||
|1.00 | |1.00 | ||
| Processes code when an [[Exception handling|exception]] is thrown in a [[try]] block. The exception caught can be found in the ''_exception'' variable. | | Processes code when an [[Exception handling|exception]] is thrown in a [[try]] block. The exception caught can be found in the ''_exception'' variable. | ||
| tryBlock [[catch]] code | | tryBlock [[catch]] code | ||
|p1= tryBlock: [[Exception handling|Exception Type]] | |p1= tryBlock: [[Exception handling|Exception Type]] | ||
|p2= code: [[Code]] | |p2= code: [[Code]] | ||
| [[Anything]] | | [[Anything]] | ||
|x1= <code>[[try]] {[[throw]] "invalid argument"} [[catch]] {[[hint]] [[str]] _exception};</code> | |x1= <code>[[try]] {[[throw]] "invalid argument"} [[catch]] {[[hint]] [[str]] _exception};</code> | ||
|x2= {{Since|arma3|1.53.133045}}: <code>123 [[try]] {[[if]] (_this != 123) [[throw]] "invalid argument"} [[catch]] {[[hint]] [[str]] _exception};</code> | |x2= {{Since|arma3|1.53.133045}}: <code>123 [[try]] {[[if]] (_this != 123) [[throw]] "invalid argument"} [[catch]] {[[hint]] [[str]] _exception};</code> | ||
|x3= The correct usage of shorthand alt syntax: <code>[[try]] { | |x3= The correct usage of shorthand alt syntax: <code>[[try]] { | ||
| Line 50: | Line 50: | ||
} [[catch]] { | } [[catch]] { | ||
[[hint]] [[str]] _exception; | [[hint]] [[str]] _exception; | ||
};</code> | };</code> | ||
| [[Exception handling]], [[try]], [[throw]] | | [[Exception handling]], [[try]], [[throw]] | ||
}} | }} | ||
Revision as of 01:10, 18 January 2021
Description
- Description:
- Processes code when an exception is thrown in a try block. The exception caught can be found in the _exception variable.
- Groups:
- Program Flow
Syntax
- Syntax:
- tryBlock catch code
- Parameters:
- tryBlock: Exception Type
- code: Code
- Return Value:
- Anything
Examples
- Example 1:
try {throw "invalid argument"} catch {hint str _exception};- Example 2:
- Template:Since:
123 try {if (_this != 123) throw "invalid argument"} catch {hint str _exception}; - Example 3:
- The correct usage of shorthand alt syntax:
try { if (a > b) throw "Error: some error"; // OK // The command argument is static } catch { hint str _exception; }; try { _someFunc = { ..... }; if (a > b) throw (call _someFunc); // NOT OK // The command argument is dynamic // _someFunc is called first to get the value regardless of (a > b) outcome } catch { hint str _exception; }; try { _someFunc = { ..... }; if (a > b) then {throw (call _someFunc)}; /// OK // The command argument is dynamic // _someFunc is only called when (a > b) is true } catch { hint str _exception; };
Additional Information
- See also:
- Exception handlingtrythrow
Notes
-
Report bugs on the Feedback Tracker and/or discuss them on the Arma Discord or on the Forums.
Only post proven facts here! Add Note