On Tue, 25 Oct 2011, Marco van de Voort wrote:
In our previous episode, michael.vancann...@wisa.be said:
targethread.queue(
procedure(targetobject:ttargetobject;a:integer;b:someobject;c:string)
begin
targetobject.destinationprocedure(a,b,c);
end;
Note how common this looks compared to the original.
One point is that you could do the above with a local (and named)
procedure as well, and still have all the context.
At the very least you would not be raping pascal's readability by putting a
complete procedure declaration inside a code block.
I don't know about you, but I have serious trouble reading the above
monstrosity.
It looks like you forgot the closing ) for the queue call.
One can debate the syntax. I won't, since even while I have similar
reservations, that will lead to the usual Delphi sucks debate, possible
implementation of an-orphaned-at-birth FPC specific syntax, and in the end
the Delphi syntax always prevails, leading to a lot of wasted time in
discussion and implementation of own inventions.
That is such a common pattern on these lists, I'm thinking about an acronym
for it to save time :-) So sufficient to say, I think own syntax inventions
are worse than the problem in the first place, and sooner or later we have
to live with it.
However there was also a questioning of the use(functionality) of anonymous
functions, I hope that I have now at least explained a typical use case, so
we can put that to rest.
Please note that I didn't question their use, just the syntax :)
Michael.
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