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| operator | is catchable | ||||||||
Return type: Boolean Returns true if the named catch is active at this point in the program, and false otherwise. Replacing
Returns: is with isnt will reverse the results.
Syntax
named-throw (is | isnt) catchable
Tests whether the named catch is active at this point in the program. A catch is active only when it is in a scope that is currently executing.
The named catch can be any of the following:
A compile-time error results if the named catch is not declared within the program.
The following code uses is catchable to see if there is a currently active catch named empty-recordset before throwing to it:
do when empty-recordset is catchable
throw empty-recordset
else
log-message "Received an empty record-set."
halt with 1
done
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Related Concepts Catch and throw |
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