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RomanYankovsky / DelphiAST

Abstract syntax tree builder for Delphi
Mozilla Public License 2.0
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FPC/Lazarus support #37

Open quartexNOR opened 9 years ago

quartexNOR commented 9 years ago

Most of the code should be FPC and Lazarus compatible, but dot-notation in filenames fails, also some specialization might be required with respect to generics to make it compile. Could be very valuable for cross-platform work and being able to use FPC on linux/mac.

RomanYankovsky commented 9 years ago

I'm not familiar with FPC syntax. And to be honest, I don't need this. If FPC support is really needed, somebody has to lead this initiative. But I can help, of course.

quartexNOR commented 9 years ago

FPC (freepascal / lazarus) is not that different. FPC is enginered to support Delphi as much as possible, but typically it's a couple of years behind EMB. Which is understandable.

The great thing about FPC is that it broadens the use of the code to linux and OS X. I use ubuntu a lot at home for instance, and being able to use my tools under linux is valuable.

One of the reasons Smart Pascal was not ported to OS X or Linux is that we used to much "delphi" centric components and code to make it portable. SMS would have been great under linux, being able to automate builds and generating nodeJS services. I presently have a build farm setup with 2 raspberry PI devices :)

Either way, it can be valuable to keep FPC in mind when writing code, as it broadens the use of the library to the FPC user-base as well. When possible ofcourse.

RomanYankovsky commented 9 years ago

Is there a document that describe the difference between Delphi and FPC syntax?

quartexNOR commented 9 years ago

It's about 90% compatible.

Only difference (that springs to mind) is:

Event handlers must have @ when assigned:

FOnMyEvent:=@SomeProc;

And for generics you need to use specialization for some types.

E.g:

Type TMySpecialList = Class(TObjectList[TSpecialItem]) //Add methods here end;

Must be written like this:

TCustomSpecial = TObjectList[TSpecialItem]; TMySpecialList = Specialize(TCustomSpecial) // add methods here end;

See wiki: http://wiki.freepascal.org/Generics

Other than that (as far as I remember), its pretty much the same stuff. Most Delphi projects compile just fine, as long as the above rules are followed, and taking third party components and dependencies into account ofcourse.

Note the [ and ] chars were used, as the site removed ordinary LESS and MORE chars :)

Wosi commented 9 years ago

I made a pull request addressing this enhancement. https://github.com/RomanYankovsky/DelphiAST/pull/88