Re: [Tinycc-devel] Beginner's tinycc questions

[grischka]

I B via Tinycc-devel wrote:
> Hi,
>
> I am just beginning to play with tinycc. I want to modify the compiler
> and add some new language features (for leaning purposes).
>
> I have a few questions:
> 1. What is the status of tinycc being re-entrant? Has that
> been merged?

No, it isn't.  It should be thread-safe but not re-entrant.
On unix you could probably use 'fork' to run a second instance
of the compiler while parsing.

> 2. I want to do some compiler time evaluation. For example
> (@comptime is just my simple parsing extension)
>
> ..... regular C code ....
>
> @comptime {
>
>   .... some code ....
>
> }
>
> ..... continue C code
>
> I want to evaluate code inside @comptime{ } while parsing. The code inside
> can generate some more C code and inject it back (and it needs to be compiled).

> Question: What's the best way to do this with tinycc?

The answer might depend very much on the real code.
... some/more/regular/... can be anything.

> Parse and compile the entire file first, then execute the code and create a 
> source new file?
> (so, there would be two passes)
>
> Or is there a way to inject new source while tinycc is parsing?
>
> Any suggestions are appreciated.

I would suggest first to write a fully 'working' example of what
you have in mind.  As if the compiler that has all the experimental
features that it needs to run it, already would exist.

--- grischka

> Thanks.
>
> Ivan