On Wed, 23 Jan 2013, vrt277 wrote:
Hi FPC team,
There is good proposed extension of for-in loop on fpc wiki: get enumerator
Position if available. From my point of view it's essential part of iterators.
Especially for data structures which store pairs of key and value associated
with key.
Enumerators are not iterators.
If you want a full-fledged iterator, you should use classes.
The for syntax is not meant for that.
I want to implement this extension. Moreover I started implementation to
explore fpc internals. Current (not finished) result available on github.
My motivation is simple: I'm a student. My teacher is Alexander S. Klenin who
should be well known to fpс developers. And I want to implement some feature of
fpc as my graduate work. Through improvement of for-in loop is not enough for
good graduate work but it is good initial step towards other big contribution.
So is get enumerator Position if available good idea?
No. I think it is a bad idea.
If you want full fledged iterators, use classes.
Michael.
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