Re: Finder bug
Re: Finder bug
- Subject: Re: Finder bug
- From: Paul Berkowitz <email@hidden>
- Date: Fri, 13 May 2005 09:43:12 -0700
- Thread-topic: Finder bug
On 5/13/05 8:33 AM, "Michelle Steiner" <email@hidden> wrote:
> OK, is this an old bug that reappeared, or didn't it ever go away?
>
> tell application "Finder"
> the selection as alias list
> end tell
>
> --> {document file "addr book script.scpt" of folder "Desktop" of
> folder "michelle" of folder "Users" of startup disk of application
> "Finder", document file "vacation script.scpt" of folder "Desktop" of
> folder "michelle" of folder "Users" of startup disk of application
> "Finder"}
>
> The result is obviously not an alias list. Its class is "list";
> without "as alias list," its class is "property".
It never went away, but it's not exactly a bug. There are two parts to the
issue:
1) class of (the selection) --> property is just "one of those things" -
selection is indeed a property of the (Finder) application. To get it to
resolve to its value (a list of Finder items) you need
class of (get the selection) -->
: the explicit 'get', or else set a variable to it. You might expect
therefore that
the selection as alias list
would error. Instead, like a lot of things in the Finder, it seems to avoid
erroring and instead resolves to
(get the selection) as alias list
which in turn does nor error as it should (see below) but simply ignores
what doesn't work and just gives you 'the selection', resolved.
'class of' here is a red herring: 'the selection' is behaving just the same
as 'get the selection'. It's an AppleScript list.
2) Since 'the selection' resolves to an AppleScript list (like 'get the
selection'), it's no longer a Finder reference but an AppleScript object - a
list (of Finder objects). As such, 'as alias list' cannot operate on it the
same way it can on a Finder reference (such as 'every item of the desktop').
So, by rights, it should error, but due to user-friendly Finder coercions or
implementations, it just ignores the 'as alias list' and gives you the same
old 'the selection'.
Basically, what we need is something that lets the Finder coercion 'as alias
list' operate on a list of Finder references, not just on a Finder
reference. I expect that's as difficult (or impossible) as expecting 'whose'
filter clauses to operate on lists... Some day...
--
Paul Berkowitz
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| | >Finder bug (From: Michelle Steiner <email@hidden>) |