Re: What Does Error Return ?

Subject: Re: What Does Error Return ?
From: Yvan KOENIG <email@hidden>
Date: Fri, 13 Mar 2015 15:26:30 +0100

Le 13/03/2015 à 15:12, Luther Fuller <email@hidden> a écrit :

I looked in the AppleScript dictionary for information on errors and found this ...

error v : Raise an error
error [anything]
[number small integer] : an error number
[partial result list] : any partial result occurring before the error
[from anything] : the object that caused the error
[to anything] : the desired class for a failed coercion

The AppleScript Language Guide, Appendix C gives some examples, but does not give
an example explaining the the meaning and usage of the 'from' and 'to' parameters.

Does anyone know what these are and where I can see an example of their usage ?

A simple test may help to understand :

try

set bb to 3 * "ccc"

on error errMsg number ErrNbr partial result partialResult from from_ to to_

log errMsg (*Impossible de convertir "ccc" en type number.*)

log ErrNbr (*-1700*)

log partialResult (**)

log from_ (*ccc*)

log to_ (*number*)

end try

Yvan KOENIG (VALLAURIS, France) vendredi 13 mars 2015 15:26:10

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References:
	>What Does Error Return ? (From: Luther Fuller <email@hidden>)

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