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Preprocess parsed AST before code generation [message #1424326]

Mon, 15 September 2014 20:41

Cioran Naroic

Messages: 18
Registered: December 2013

Junior Member

Hi,

In my DSL workflow, I need to preprocess the parsed AST of the user's file to load external files, infer new elements in the AST, set some derived attributes or infer typing relations.

I want this preprocess phase to happen between the parsing of the AST and the code generation by the Jvm inferrer.

Currently I'm doing these processings in a custom DerivedStateComputer, and it works just fine, but I wonder if this is really the proper way to do it or if there is a better place where to put that code (as this is pretty common to augment an AST after parsing)?

Also, is it possible to define two validators for my language: one that validates the AST just after parsing, and one that validates the AST after this preprocessings occur?

Thank you,

Cioran

[Updated on: Mon, 15 September 2014 21:14]

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Re: Preprocess parsed AST before code generation [message #1424657 is a reply to message #1424326]

Tue, 16 September 2014 08:31

Sebastian Zarnekow

Messages: 3118
Registered: July 2009

Senior Member

Hi Cioran,

please look into AbstractCleaningLinker#beforeModelLinked.

Regards,
SEbastian

Am 15.09.14 22:41, schrieb Cioran Naroic:
> Hi,
>
> In my DSL workflow, I need to preprocess the parsed AST of the user's
> file to load external files, infer new elements in the AST, set some
> derived attributes or infer typing relations.
>
> I want this preprocess phase to happen between the parsing of the AST
> and the code generation by the Jvm inferer.

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