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> It was not a syntax error. Your expression just had the wrong > return value. I don't see how an IDE could help here. > > by type inference. i don't know how far an ide could track the types in clojure since it's completely lacking any type annotations, but in scala it works really well (although it stops at method declarations, there you have to add type annotations) and such an error (returning the wrong type in a situation where it's clear what is expected) would have been highlighted at coding time (even before compilation) the ideal situation would be something like (def x [foo] (+ 5 foo)) here, the ide could look into "+" and check which types could be put into "+" without making it crash ;). that information must provided somehow (hard coded into ide, provided as parsable documentation, whatever) at all basic functions. this would enable the ide to recursively traverse the call tree and figure out what can be applied to which function. in my example, it would be "x" is called with a parameter "foo". "foo" is given to "+" as the second parameter of a 2 parameter list. let's look into "+". oh i see, it has to be a java.lang.Number. is it? yes -> k. no -> highlight "(x param)" as an error. -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.14 (MingW32) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iQIcBAEBAgAGBQJOZi28AAoJENRtux+h35aGtQMQAKAemGLyIRP+6h9KaL3ix3U+ qOgupgqNGNtkDZ2ibYlYRfunJKRm8KLwVnh/0jiTBukY8ppOJTgTuUde6abcl10G pYomKWPNZBxTRAYI4nRtTKk9cEj0yx3CLYislbk4buxgmLCLNSBOLBmWBD7F8Rxz fR++KLiJJR7JJ/HszrGPr54Vo7AnI1Rfk1+FcX19UJnmIj1qdfLWq8wTSA6oy063 ZinLUBl+3OfATDJlxUMPJdPOjHMDfQ13MlksUVJq4696rhKjvVdMpIpb9REOmg/Y +ZxKVLBKr+8RruzDcUJwoiVrJOi6f1pXIMzqsKDhaqhDJwr0iHhY98SjkQBAyozI tLPQmnudMEB6gS7F2/aW2idZ9WD+XiUyoCt2FwplVJqBveBWTAUAXWdpeAl0rmVG Qjh5hiUgHs4W8X7qmlTzsZPFlwJ+rYZoHzqaw6HcWnGX9H6gv2ExM1+ELJ25dTHh 0AJZl26WLZ7eXZNAeO62FDET64RR3Oib6tVDTzP41IdLzjUx+zwFjfQFOVlEE/Cx m5azpk8d11zytG2nlcC58Yg8SBz0ZGyTtv4JJ139JqJdVzpYeol7QXZbkrgY5w3/ DQ5+bW7QjqxmD4FbjTcIDcxWcyg+SXda5p4O1ZqxQSWhNa6EzLrWPLufFBfsNyQa kUjdYxBTJkgtbhl8jxLb =6RyY -----END PGP SIGNATURE----- -- 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
