<throw> throw an exception

name

throw

xml namespace

http://moyaproject.com

Throw a Moya exception. An exception consists of a name in dotted notation with an optional message.

Custom exceptions should be named to start with the long name of the library. Moya reserves exceptions with a single dot for internal use. These may be thrown if appropriate.

Example

<try>
    <throw exception="middle.earth.cant" msg="One can't simply do that!"/>
</try>
<except exception="middle.earth.*" dst="error">
    <echo>Error: ${error.msg}</echo>
</except>

attributes

name	purpose	type	required?	default	choices
exception	Type of exception	text	Yes
msg	Message	text	No	"exception thrown"

inherited attributes

name	purpose	type	required?	default	choices
default	Default return for missing keys	expression	No	None
dst	Destination	reference	No
if	Conditional expression	expression	No	yes
sequence	Optional sequence of key / value pairs to initialize the dict	expression	No	None
value	Value	expression	No	None