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annotate src/order.sml @ 1739:c414850f206f

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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 ffa18975e661
children
rev   line source
adamc@193 1 (* Copyright (c) 2008, Adam Chlipala
adamc@193 2 * All rights reserved.
adamc@193 3 *
adamc@193 4 * Redistribution and use in source and binary forms, with or without
adamc@193 5 * modification, are permitted provided that the following conditions are met:
adamc@193 6 *
adamc@193 7 * - Redistributions of source code must retain the above copyright notice,
adamc@193 8 * this list of conditions and the following disclaimer.
adamc@193 9 * - Redistributions in binary form must reproduce the above copyright notice,
adamc@193 10 * this list of conditions and the following disclaimer in the documentation
adamc@193 11 * and/or other materials provided with the distribution.
adamc@193 12 * - The names of contributors may not be used to endorse or promote products
adamc@193 13 * derived from this software without specific prior written permission.
adamc@193 14 *
adamc@193 15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
adamc@193 16 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
adamc@193 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
adamc@193 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
adamc@193 19 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
adamc@193 20 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
adamc@193 21 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
adamc@193 22 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
adamc@193 23 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
adamc@193 24 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
adamc@193 25 * POSSIBILITY OF SUCH DAMAGE.
adamc@193 26 *)
adamc@193 27
adamc@193 28 (* Utility code for implementing comparisons *)
adamc@193 29
adamc@193 30 structure Order :> ORDER = struct
adamc@193 31
adamc@193 32 fun join (o1, o2) =
adamc@193 33 case o1 of
adamc@193 34 EQUAL => o2 ()
adamc@193 35 | v => v
adamc@193 36
adamc@193 37 fun joinL f (os1, os2) =
adamc@193 38 case (os1, os2) of
adamc@193 39 (nil, nil) => EQUAL
adamc@193 40 | (nil, _) => LESS
adamc@193 41 | (h1 :: t1, h2 :: t2) =>
adamc@193 42 join (f (h1, h2), fn () => joinL f (t1, t2))
adamc@193 43 | (_ :: _, nil) => GREATER
adamc@193 44
adamc@479 45 fun joinO f (v1, v2) =
adamc@479 46 case (v1, v2) of
adamc@479 47 (NONE, NONE) => EQUAL
adamc@479 48 | (NONE, _) => LESS
adamc@479 49 | (_, NONE) => GREATER
adamc@479 50
adamc@479 51 | (SOME v1, SOME v2) => f (v1, v2)
adamc@479 52
adamc@193 53 end