Exception Handling: Difference between revisions
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An exception is an error occurs in the runtime (the excution) of program. The CGScript languages use the '''try/catch statement''' and the '''throw''' expression to implement the exception handling. | |||
== <span style="color:#a52a2a;">'''Syntax'''</span> == | |||
=== try-catch statement === | |||
try { | |||
// codes that could throw an exception | |||
} | |||
catch (exception-declaration) { | |||
// codes that execute when exception-declaration is thrown in the try block | |||
} | |||
[catch (exception-declaration) { | |||
// code that handles another exception type | |||
} ] . . . ] | |||
=== throw expression === | |||
throw [expression] | |||
== <span style="color:#a52a2a;">'''Examples'''</span> == | |||
Revision as of 10:49, 19 December 2011
Exception Handling (Error Runtime Handling)
An exception is an error occurs in the runtime (the excution) of program. The CGScript languages use the try/catch statement and the throw expression to implement the exception handling.
Syntax
try-catch statement
try {
// codes that could throw an exception
} catch (exception-declaration) {
// codes that execute when exception-declaration is thrown in the try block
} [catch (exception-declaration) {
// code that handles another exception type
} ] . . . ]
throw expression
throw [expression]