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From: Joel Reymont <joelr1@gmail.com>
To: Caml List <caml-list@inria.fr>
Subject: camlp4: Understanding class_declaration
Date: Thu, 4 Oct 2007 17:40:58 +0100	[thread overview]
Message-ID: <ACF73769-6006-45B8-AC9F-72032BE76B2D@gmail.com> (raw)

Would someone kindly explain LEFTA, SELF, ANTIQUOT and QUOTATION below?

    class_declaration:
       [ LEFTA
         [ c1 = SELF; "and"; c2 = SELF ->
             <:class_expr< $c1$ and $c2$ >>
         | `ANTIQUOT (""|"cdcl"|"anti"|"list" as n) s ->
             <:class_expr< $anti:mk_anti ~c:"class_expr" n s$ >>
         | `QUOTATION x -> Quotation.expand _loc x  
Quotation.DynAst.class_expr_tag
         | ci = class_info_for_class_expr; ce = class_fun_binding ->
             <:class_expr< $ci$ = $ce$ >>
       ] ]

It seems they are variants but that's about as much as I understand.  
What are the "cdcl", "anti" or "list", for example? Why are they  
strings?

And why is `QUOTATION x expanded into Quotation.expand _loc x  
Quotation.DynAst.class_expr_tag?

	Thanks in advance, Joel

--
http://wagerlabs.com




             reply	other threads:[~2007-10-04 16:41 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-10-04 16:40 Joel Reymont [this message]
2007-10-06  7:35 ` [Caml-list] " Nicolas Pouillard

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