Re: [PATCH] Proposal: implement feature-dependent-op
Richard M Kreuter <[email protected]>
| Newsgroups | gmane.lisp.cclan.general |
|---|---|
| Message-ID | <[email protected]> |
Christophe Rhodes <[email protected]> writes: > It's probably undocumented, but you can actually do this at the > moment: > :in-order-to ((load-op (feature :ppc) (feature :darwin)) > (compile-op (feature :ppc) (feature :darwin))) > in a component's dependencies. The functionality I propose makes the traverse prune components depending on features. The ":in-order-to ((... (feature ...)))" notation expresses a different modality: the absence of the feature makes TRAVERSE signal an error. CL-USER> (find :f1 *features*) NIL CL-USER> (defsystem my-sys-2 :pathname "." :components ((:file "file1" :in-order-to ((compile-op (feature :f1)))))) #<SYSTEM "my-sys-2" {507C8891}> CL-USER> (asdf:oos 'asdf:compile-op 'my-sys-2) component :F1 not found, required by #<CL-SOURCE-FILE "file1" {50CCBE61}> [Condition of type MISSING-DEPENDENCY] The interface to the desired functionality could be provided by adding syntax to :in-order-to, I guess. -- RmK ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys - and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV