From e76ee80695acce02b283d12eedc26477ace15b1f Mon Sep 17 00:00:00 2001 From: Adam Chlipala Date: Thu, 20 Feb 2014 10:27:15 -0500 Subject: Some more nested functor bug-fixing, including generating fresh internal names at applications; still need to debug issues with datatype constructors --- src/expl_rename.sig | 41 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 41 insertions(+) create mode 100644 src/expl_rename.sig (limited to 'src/expl_rename.sig') diff --git a/src/expl_rename.sig b/src/expl_rename.sig new file mode 100644 index 00000000..1aff3151 --- /dev/null +++ b/src/expl_rename.sig @@ -0,0 +1,41 @@ +(* Copyright (c) 2014, 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. + *) + +(* To simplify Corify, it helps to apply a particular kind of renaming to functor + * bodies, so that nested functors refer only to fresh names. The payoff is that + * we can then implement applications of those nested functors by evaluating their + * bodies in arbitrary later contexts, even where identifiers defined in the + * outer functor body may have been shadowed. *) + +signature EXPL_RENAME = sig + + val rename : {NextId : int, + FormalName : string, + FormalId : int, + Body : Expl.str} -> int * Expl.str + +end -- cgit v1.2.3