On Tue, 2009-04-21 at 05:42 -0700, Derick Eddington wrote: > On Tue, 2009-04-21 at 04:21 -0700, Derick Eddington wrote: > > On Tue, 2009-04-21 at 00:04 -0700, Derick Eddington wrote: > > > On Mon, 2009-04-20 at 22:04 -0400, Lynn Winebarger wrote: > > > > There's an > > > > echo of Will's complaint that R6RS requires compiling programs with > > > > obvious errors to give error messages at run-time > > > > > > That temp2.sps is being compiled and run in the same process, so how can > > > you tell when the error is happening? I think it probably actually is > > > happening at expand-time. > > > > I was wrong about that. I wonder why the error isn't detected at > > expand-time. Does R6RS really require this type of error to be reported > > at run-time? > > R6RS Libraries 12.1 says: > "A reference to an identifier introduced into the output of a > transformer refers to [...] the closest enclosing lexical binding where > the identifier appears (within a syntax <template>) inside the > transformer body or one of the helpers it calls." > > That "or one of the helpers it calls" suggests to me that templates in > helpers are also hygienic, regardless of where those helpers are from.
Sorry, that was intended to be a response to Lynn's comments about the hygiene of templates. That's not really relevant to what I put it under above. I found that quote while looking for R6RS language relevant to when template errors should happen (I haven't found any yet). Sleep helps. -- : Derick ---------------------------------------------------------------- _______________________________________________ Larceny-users mailing list Larceny-users@lists.ccs.neu.edu https://lists.ccs.neu.edu/bin/listinfo/larceny-users
