More actions
No edit summary |
|||
| Line 7: | Line 7: | ||
== <span style="color:#a52a2a;">'''Syntax'''</span> == | == <span style="color:#a52a2a;">'''Syntax'''</span> == | ||
=== try-catch statement === | === try-catch statement === | ||
<pre> | |||
try { | try { | ||
// codes that could throw an exception | // codes that could throw an exception | ||
| Line 16: | Line 17: | ||
// code that handles another exception type | // code that handles another exception type | ||
} ] . . . ] | } ] . . . ] | ||
</pre> | |||
=== throw expression === | === throw expression === | ||
Revision as of 10:50, 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]