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Re: Return from Handler... What am I Missing Here?
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Re: Return from Handler... What am I Missing Here?


  • Subject: Re: Return from Handler... What am I Missing Here?
  • From: Deivy Marck Petrescu <email@hidden>
  • Date: Sat, 17 Oct 2015 13:54:57 -0400

On Oct 17, 2015, at 1:22 PM, S. J. Cunningham <email@hidden> wrote:

> Another rookie error, I suppose.  Why does the first case work and the second fail?
>
> -- Case 1
> handlerName()
> if errNum of the result ≠ 0 then
> 	display dialog "Error " & errNum of the result & ": " & errMsg of the result
> else
> 	display dialog "No Error"
> end if
> --> "Error -1: x"
>
> -- Case 2
> if errNum of handlerName() ≠ 0 then
> 	display dialog "Error " & errNum of the result & ": " & errMsg of the result
> 	return
> end if
> display dialog "No Error"
> --> Runtime Error: "Can’t make errNum of "x" into type Unicode text."
>
> on handlerName()
> 	set yyy to "x"
> 	return {errNum:-1, errMsg:yyy}
> end handlerName


The second case does not fail, it works correctly.
if you log the result of your call, it returns "x", which does not have the errNum property.

Deivy
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