2011/3/14 Dominikus <dominikus.herzb...@gmail.com> > This was also my best guess, Timothy and Stuart, but it does not > explain why a redefined 'if' (or a competing symbol binding, Stuart?) > in the REPL leads to > > user=> if > #<user$if user$if@118d189> >
My best guess is because it's not in a callable position (ie not the first element of a list. > > while 'if' within a list form does not: > > user=> (if 3) > java.lang.Exception: Too few arguments to if (NO_SOURCE_FILE:74) > > I think this is an inconsistent interaction model -- it might even > hint towards an implementation flaw. If I manually decompose a list > form and analyze its elements in isolation (first evaluate 'if' and > then '3' in the REPL), the composite list form should behave > accordingly, shouldn't it? > > I come up with this scenario in order to understand the precise > behavior of Clojure's evaluation strategy regarding symbol bindings > and special forms. As I said, I'm fully aware that it's no good idea > to change 'if' or any other special forms in production code. > > Dominikus > > On 14 Mrz., 18:26, Stuart Sierra <the.stuart.sie...@gmail.com> wrote: > > Yes, with one correction: Clojure is not an interpreter. The Clojure > > compiler treats certain symbols specially, such as `if`, `do`, and `def`. > > You cannot redefine these symbols. > > > > -Stuart Sierra > > clojure.com > > -- > You received this message because you are subscribed to the Google > Groups "Clojure" group. > To post to this group, send email to clojure@googlegroups.com > Note that posts from new members are moderated - please be patient with > your first post. > To unsubscribe from this group, send email to > clojure+unsubscr...@googlegroups.com > For more options, visit this group at > http://groups.google.com/group/clojure?hl=en > -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
