On Sun, Aug 21, 2005 at 12:11:17 +0000, Ingo Blechschmidt wrote: > Hi, > > Yuval Kogman <nothingmuch <at> woobling.org> writes:
> But we should note that some backends don't generate meaningful
> ASTs, simply because they don't convert PIL -> target language
> AST -> target language, but PIL -> target language directly. I.e.
>
> my $ast = $code.emit(..., :language<Foo>);
> say keys $ast; # "FooCode"
> say $ast<FooCode>; # ...
>
> my $ast = { 3 + 4 }.emit(..., :language<PIL>);
> say $ast.pBody.pStmt.pExpr.pLV.pArgs[1].pLit.pVal; # 4
>
In that case they just take the PIL tree and rebless it with the
code emitter as the stringifier.
> There could be a module JavaScript::Browser or so, which would
> export $*DOM. I.e.:
>
> #!/usr/bin/pugs
> $*DOM.document.write(...);
> # Compile-time error: $*DOM not declared
>
> #!/usr/bin/pugs -BParrot
> use JavaScript::Browser <$*DOM>;
> $*DOM.document.write(...);
> # error: $*DOM does only work when running in a browser
>
> #!/usr/bin/pugs -CJS
> use JavaScript::Browser <$*DOM>;
> $*DOM.document.write(...);
> # fine now
>
> This exported $*DOM object could then be a (proxy) object with
> appropriate magic -- i.e. die when the current runtime is not
> a browser and relay all calls to the respective native JavaScript
> objects otherwise.
>
> I think something like "$*DOM is exported" is too generic,
> not sure...
Yes, you're absolutely right.
--
() Yuval Kogman <[EMAIL PROTECTED]> 0xEBD27418 perl hacker &
/\ kung foo master: /me spreads pj3Ar using 0wnage: neeyah!!!!!!!!!!!
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