On Apr 13, 2015, at 8:40 AM, Matthew Flatt <mfl...@cs.utah.edu> wrote:
> Most packages build ok using the above snapshot: > > http://next-pkg-build.racket-lang.org.s3-website-us-west-2.amazonaws.com/ > > Several failures are "ambiguous binding" errors. That error usually > indicates an unavoidable incompatibility between the old and new macro > systems. I'm interested to hear whether the package authors can > understand the errors and fix them and whether the incompatibilities > seem manageable. For a “hygienic" reader-extension, that outputs syntax with lexical context telling it where an identifier should be from so it isn’t captured, what should I do in the new expander? For example the afl and rackjure pkgs both provide a reader extension that looks like for example: #λ(+ % 1) Which is read as: (sort of) (lambda (%) (+ % 1)) Where the `lambda` identifier has lexical context that says that it comes from racket/base. But with the new macro expander, I’m seeing errors like this: lambda: identifier's binding is ambiguous context...: #(42661 module) #(42683 module reader 0) #(42873 module) #(42874 module test-afl-at-exp-racket 0) #(43994 local) #(43995 intdef) matching binding...: #<module-path-index:(racket/base)> #(42661 module) #(42683 module reader 0) matching binding...: #<module-path-index:(racket/base)> #(42661 module) #(42683 module reader 0) matching binding...: #<module-path-index:(racket/base)> #(42873 module) #(42874 module test-afl-at-exp-racket 0) in: lambda compilation context...: /home/racket/build-pkgs/user/.racket/snapshot/pkgs/afl/afl/tests/test-afl-at-exp-racket.rkt So, is there a way to do this in the new macro expander? -- You received this message because you are subscribed to the Google Groups "Racket Developers" group. To unsubscribe from this group and stop receiving emails from it, send an email to racket-dev+unsubscr...@googlegroups.com. To post to this group, send email to racket-dev@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/racket-dev/54C8E4C1-54E2-4D6B-9803-B0CB3D878B1D%40knauth.org. For more options, visit https://groups.google.com/d/optout.
