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(* Copyright (c) 2008, Adam Chlipala
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* - Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* - Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* - The names of contributors may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*)
structure Corify :> CORIFY = struct
structure EM = ErrorMsg
structure L = Elab
structure L' = Core
fun corifyKind (k, loc) =
case k of
L.KType => (L'.KType, loc)
| L.KArrow (k1, k2) => (L'.KArrow (corifyKind k1, corifyKind k2), loc)
| L.KName => (L'.KName, loc)
| L.KRecord k => (L'.KRecord (corifyKind k), loc)
| L.KError => raise Fail ("corifyKind: KError at " ^ EM.spanToString loc)
| L.KUnif (_, ref (SOME k)) => corifyKind k
| L.KUnif _ => raise Fail ("corifyKind: KUnif at " ^ EM.spanToString loc)
fun corifyCon (c, loc) =
case c of
L.TFun (t1, t2) => (L'.TFun (corifyCon t1, corifyCon t2), loc)
| L.TCFun (_, x, k, t) => (L'.TCFun (x, corifyKind k, corifyCon t), loc)
| L.TRecord c => (L'.TRecord (corifyCon c), loc)
| L.CRel n => (L'.CRel n, loc)
| L.CNamed n => (L'.CNamed n, loc)
| L.CApp (c1, c2) => (L'.CApp (corifyCon c1, corifyCon c2), loc)
| L.CAbs (x, k, c) => (L'.CAbs (x, corifyKind k, corifyCon c), loc)
| L.CName s => (L'.CName s, loc)
| L.CRecord (k, xcs) => (L'.CRecord (corifyKind k, map (fn (c1, c2) => (corifyCon c1, corifyCon c2)) xcs), loc)
| L.CConcat (c1, c2) => (L'.CConcat (corifyCon c1, corifyCon c2), loc)
| L.CError => raise Fail ("corifyCon: CError at " ^ EM.spanToString loc)
| L.CUnif (_, _, ref (SOME c)) => corifyCon c
| L.CUnif _ => raise Fail ("corifyCon: CUnif at " ^ EM.spanToString loc)
fun corifyExp (e, loc) =
case e of
L.EPrim p => (L'.EPrim p, loc)
| L.ERel n => (L'.ERel n, loc)
| L.ENamed n => (L'.ENamed n, loc)
| L.EApp (e1, e2) => (L'.EApp (corifyExp e1, corifyExp e2), loc)
| L.EAbs (x, dom, ran, e1) => (L'.EAbs (x, corifyCon dom, corifyCon ran, corifyExp e1), loc)
| L.ECApp (e1, c) => (L'.ECApp (corifyExp e1, corifyCon c), loc)
| L.ECAbs (_, x, k, e1) => (L'.ECAbs (x, corifyKind k, corifyExp e1), loc)
| L.ERecord xes => (L'.ERecord (map (fn (c, e) => (corifyCon c, corifyExp e)) xes), loc)
| L.EField (e1, c, {field, rest}) => (L'.EField (corifyExp e1, corifyCon c,
{field = corifyCon field, rest = corifyCon rest}), loc)
| L.EError => raise Fail ("corifyExp: EError at " ^ EM.spanToString loc)
fun corifyDecl (d, loc : EM.span) =
case d of
L.DCon (x, n, k, c) => (L'.DCon (x, n, corifyKind k, corifyCon c), loc)
| L.DVal (x, n, t, e) => (L'.DVal (x, n, corifyCon t, corifyExp e), loc)
val corify = map corifyDecl
end
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