Mercurial > urweb
view tests/type_class.ur @ 1739:c414850f206f
Add support for -boot flag, which allows in-tree execution of Ur/Web
The boot flag rewrites most hardcoded paths to point to the build
directory, and also forces static compilation. This is convenient
for developing Ur/Web, or if you cannot 'sudo make install' Ur/Web.
The following changes were made:
* Header files were moved to include/urweb instead of include;
this lets FFI users point their C_INCLUDE_PATH at this directory
at write <urweb/urweb.h>. For internal Ur/Web executables,
we simply pass -I$PATH/include/urweb as normal.
* Differentiate between LIB and SRCLIB; SRCLIB is Ur and JavaScript
source files, while LIB is compiled products from libtool. For
in-tree compilation these live in different places.
* No longer reference Config for paths; instead use Settings; these
settings can be changed dynamically by Compiler.enableBoot ()
(TODO: add a disableBoot function.)
* config.h is now generated directly in include/urweb/config.h,
for consistency's sake (especially since it gets installed
along with the rest of the headers!)
* All of the autotools build products got updated.
* The linkStatic field in protocols now only contains the name of the
build product, and not the absolute path.
Future users have to be careful not to reference the Settings files
to early, lest they get an old version (this was the source of two
bugs during development of this patch.)
author | Edward Z. Yang <ezyang@mit.edu> |
---|---|
date | Wed, 02 May 2012 17:17:57 -0400 |
parents | 81573f62d6c3 |
children |
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datatype pair a b = Pair of a * b structure M : sig class default val get : t ::: Type -> default t -> t val string_default : default string val int_default : default int val option_default : t ::: Type -> default t -> default (option t) val pair_default : a ::: Type -> b ::: Type -> default a -> default b -> default (pair a b) (*val uh_oh : t ::: Type -> default t -> default t*) class awesome val awesome_default : t ::: Type -> awesome t -> default t val float_awesome : awesome float val oh_my : t ::: Type -> awesome (option t) -> awesome (option t) val awesome : t ::: Type -> awesome t -> t end = struct class default t = t fun get (t ::: Type) (x : t) = x val string_default = "Hi" val int_default = 0 fun option_default (t ::: Type) (x : t) = Some x fun pair_default (a ::: Type) (b ::: Type) (x : a) (y : b) = Pair (x, y) (*fun uh_oh (t ::: Type) (x : t) = x*) class awesome t = t fun awesome_default (t ::: Type) (x : t) = x val float_awesome = 1.23 fun oh_my (t ::: Type) (x : option t) = x fun awesome (t ::: Type) (x : t) = x end open M fun default (t ::: Type) (_ : default t) : t = get val hi : string = default val zero : int = default val some_zero : option int = default val hi_zero : pair string int = default val ott : float = default fun frob (t ::: Type) (_ : default t) : t = default val hi_again : string = frob val zero_again : int = frob fun show_option (t ::: Type) (_ : show t) : show (option t) = mkShow (fn x => case x of None => "None" | Some y => show y) (*val x : option float = awesome*) fun show_pair (a ::: Type) (b ::: Type) (_ : show a) (_ : show b) : show (pair a b) = mkShow (fn x => case x of Pair (y, z) => "(" ^ show y ^ "," ^ show z ^ ")") fun main () : transaction page = return <xml><body> {[hi_again]}, {[zero_again]}, {[some_zero]}, {[hi_zero]}, {[ott]} </body></xml>