[dmd-internals] A dmd hacking question

[kenji hara]

2012年3月26日10:31 deadal nix <deadalnix at gmail.com>:
> Hi,
>
> I wanted to try out to do some hacking into DMD. I ran in a problem that I
> have no clue how to solve.
>
> I did the following to generate some function with an alternative syntax :
>     Type* type = new TypeIdentifier(loc, typeId);
>     Parameters* ps = new Parameters();
>     ps->push(new Parameter(0, type, new Identifier("argument",
> TOKidentifier), NULL));

      ps->push(new Parameter(0, type, Lexer::idPool("argument"), NULL));

>     Statement* body = parseStatement(PScurly);
>     f = new FuncDeclaration(loc, this->loc, id, STCundefined, new
> TypeFunction(ps, type, 0, LINKd, STCundefined));
>     f->fbody = body;
>
>     Dsymbols *decldefs = new Dsymbols();
>     decldefs->push(f);
>
>     return new TemplateDeclaration(loc, id, tpl, constraint, decldefs, 0);
>
> It works great, except that I can't use argument in the function body. I got
> an identifier missing message. What is missing to enable this identifier to
> be resolved as a regular function parameter ?

In basic, each identifier object is unique, and in semantic they are
compared only their address.

Kenji Hara