Re: [Cpptool-develop] CodeModel (was: apologies)

[Baptiste L. <gai...@fr...>]

----- Original Message -----
From: "Andre Baresel" <and...@gm...>
To: "Sven Reichard" <rei...@ma...>; "CppTool Mailing List"
<Cpp...@li...>
Sent: Friday, January 31, 2003 4:47 PM
Subject: Re: [Cpptool-develop] apologies


> Sven Reichard wrote:
>
> >Since the CodeGenerator code isn't used yet, I don't really understand
it.
> >I'll try to work on it.
> >
> I think I understood the main idea by anlysing the tests written by
> Baptiste.
> In the tests the code generator is used in the following way:
>
> -  Parse a code to an AST (lazy parsing as used in the Refactoring code)
> -  Transform the AST to Code-Elements like if-statement/for-statement
> etc. (for each programming
>        element there is a class
> - Code-Elements are used to rewrite the code in a textual form
> (formatting stuff).
>
> For me it seems to be a transformation between the AST-representation
> and a new CodeGenerator
> representation. This codegeneration representation can be used for
> formatting.

Yes, that's it. See the very basic example in
CodeWriterTest::testRewriteStatement().

It will be use for formatting, but also for refactoring. On difficult issue
when doing some refactoring like IntroduceExplainingVariable and
ReduceTemporaryScope is that you need to introduce a new statement next to
another existing one. Doing so may require adding a compound statement,
which is very 'context dependent' (is it within a switch/case,a  for, a
if/then/else...)

Baptiste.

> [...]