ifThrown

CommonType!(T1,  T2) ifThrown(E :  Throwable =  Exception,  T1,  T2)(lazy  scope  T1 expression,  lazy  scope  T2 errorHandler)

ML-style functional exception handling. Runs the supplied expression and returns its result. If the expression throws a Throwable, runs the supplied error handler instead and return its result. The error handler's type must be the same as the expression's type.

Parameters

`E`	The type of `Throwable`s to catch. Defaults to `Exception`
`T1`	The type of the expression.
`T2`	The return type of the error handler.
`expression`	The expression to run and return its result.
`errorHandler`	The handler to run if the expression throwed.

Returns

expression, if it does not throw. Otherwise, returns the result of

errorHandler.

CommonType!(T1,  T2) ifThrown(E :  Throwable,  T1,  T2)(lazy  scope  T1 expression,  scope  T2 delegate(E)  errorHandler)

ditto

fnCommonType!(T1, T2) ifThrown(T1, T2)(lazy scope T1 expression, scope T2 delegate(Exception) errorHandler)

ditto