Am 21.07.2018 um 22:43 schrieb Ben Grasset:
On Fri, Jul 20, 2018 at 1:20 AM, Sven Barth via fpc-pascal
<fpc-pascal@lists.freepascal.org
<mailto:fpc-pascal@lists.freepascal.org>> wrote:
Because a feature might change the language in a way that's not in
the spirit of the language. Look at how Delphi implemented
attributes: they're declared in front of the types, fields,
parameters, whatever, simply copied from how C# implemented them
while in the spirit of Pascal they should have been *after* the
declarations.
Regards,
Sven
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C# itself is heavily inspired by Delphi though, as it's another Anders
Hejlsberg project. I fail to see what the "spirit of the language" has
to do with anything as far as attributes, either.
Shouldn't the attribute tags just be put wherever it's easiest for the
compiler to deal with them?
If we go by that then the current attribute syntax is especially bad,
because the compiler now needs to gracefully fail with declarations like
this:
=== code begin ===
[TSomeAttribute]
uses
foobar;
=== code end ===
If there'd be a syntax to add them as postfix ones then it would be
easier for the compiler (the following is merely an example):
=== code begin ===
type
TSomeClass = class(TObject) with [TSomeAttribute]
fSomeField with [TSomeOtherAttribute]: LongInt;
property WhatEver: LongInt read fSomeField with [TYetAnotherAttribute];
end;
=== code end ===
I think the vast majority of people care far more about
how/usefulPascal actually is in real life/than they do
about whether or not it fulfills some not-well-defined notion of
"spirit".
And that's why there are people who *do* care about it. Of course you
can put everything and the kitchen think into a language. But if it
doesn't fit the language than you'll simply end up with a melting pot
that doesn't feel coherent. Also while people might not consciously
think about the spirit of the language I think they'll feel if the
language is coherent with itself or not.
Also, as far as I can tell, most of the people who use FPC would
consider the Delphi way to be the correct or normal way of doing
things in the first place.
Considering that more often than not there are discussions on these
lists if we should continue to follow Delphi compatibility or not you
might be surprised...
Regards,
Sven
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