Mercurial > urweb
view src/effectize.sml @ 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 | b6df00ed536c |
children | e15234fbb163 |
line wrap: on
line source
(* Copyright (c) 2009-2010, 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 Effective :> EFFECTIZE = struct open Core structure U = CoreUtil structure IM = IntBinaryMap structure SS = BinarySetFn(struct type ord_key = string val compare = String.compare end) fun effectful x = Settings.isEffectful x andalso not (Settings.isClientOnly x) fun effectize file = let fun expOnload evs e = case e of EFfi f => effectful f | EFfiApp (m, x, _) => effectful (m, x) | ENamed n => IM.inDomain (evs, n) | EServerCall (n, _, _) => IM.inDomain (evs, n) | _ => false fun couldWriteOnload evs = U.Exp.exists {kind = fn _ => false, con = fn _ => false, exp = expOnload evs} fun exp evs e = case e of EFfi f => effectful f | EFfiApp (m, x, _) => effectful (m, x) | ENamed n => IM.inDomain (evs, n) | ERecord xets => List.exists (fn ((CName "Onload", _), e, _) => couldWriteOnload evs e | _ => false) xets | _ => false fun couldWrite evs = U.Exp.exists {kind = fn _ => false, con = fn _ => false, exp = exp evs} fun exp writers readers pushers e = case e of ENamed n => IM.inDomain (pushers, n) | EServerCall (n, _, _) => IM.inDomain (writers, n) andalso IM.inDomain (readers, n) | _ => false fun couldWriteWithRpc writers readers pushers = U.Exp.exists {kind = fn _ => false, con = fn _ => false, exp = exp writers readers pushers} fun exp evs e = case e of EFfi ("Basis", "getCookie") => true | ENamed n => IM.inDomain (evs, n) | EServerCall (n, _, _) => IM.inDomain (evs, n) | _ => false fun couldReadCookie evs = U.Exp.exists {kind = fn _ => false, con = fn _ => false, exp = exp evs} val dejs = U.Exp.map {kind = fn x => x, con = fn c => c, exp = fn ERecord xets => ERecord (List.filter (fn ((CName x, _), _ , _) => x = "Onload" orelse not (String.isPrefix "On" x) | _ => true) xets) | e => e} fun doDecl (d, evs as (writers, readers, pushers)) = case #1 d of DVal (x, n, t, e, s) => let val e' = dejs e in (d, (if couldWrite writers e' then IM.insert (writers, n, (#2 d, s)) else writers, if couldReadCookie readers e' then IM.insert (readers, n, (#2 d, s)) else readers, if couldWriteWithRpc writers readers pushers e then IM.insert (pushers, n, (#2 d, s)) else pushers)) end | DValRec vis => let fun oneRound evs = foldl (fn ((_, n, _, e, s), (changed, (writers, readers, pushers))) => let val e' = dejs e val (changed, writers) = if couldWrite writers e' andalso not (IM.inDomain (writers, n)) then (true, IM.insert (writers, n, (#2 d, s))) else (changed, writers) val (changed, readers) = if couldReadCookie readers e' andalso not (IM.inDomain (readers, n)) then (true, IM.insert (readers, n, (#2 d, s))) else (changed, readers) val (changed, pushers) = if couldWriteWithRpc writers readers pushers e andalso not (IM.inDomain (pushers, n)) then (true, IM.insert (pushers, n, (#2 d, s))) else (changed, pushers) in (changed, (writers, readers, pushers)) end) (false, evs) vis fun loop evs = let val (b, evs) = oneRound evs in if b then loop evs else evs end in (d, loop (writers, readers, pushers)) end | DExport (Link, n, t) => (case IM.find (writers, n) of NONE => () | SOME (loc, s) => if Settings.isSafeGet s then () else ErrorMsg.errorAt loc ("A link (" ^ s ^ ") could cause side effects; try implementing it with a form instead"); ((DExport (Link, n, IM.inDomain (pushers, n)), #2 d), evs)) | DExport (Action _, n, _) => ((DExport (Action (if IM.inDomain (writers, n) then if IM.inDomain (readers, n) then ReadCookieWrite else ReadWrite else ReadOnly), n, IM.inDomain (pushers, n)), #2 d), evs) | DExport (Rpc _, n, _) => ((DExport (Rpc (if IM.inDomain (writers, n) then if IM.inDomain (readers, n) then ReadCookieWrite else ReadWrite else ReadOnly), n, IM.inDomain (pushers, n)), #2 d), evs) | DExport (Extern _, n, _) => ((DExport (Extern (if IM.inDomain (writers, n) then if IM.inDomain (readers, n) then ReadCookieWrite else ReadWrite else ReadOnly), n, IM.inDomain (pushers, n)), #2 d), evs) | _ => (d, evs) val (file, _) = ListUtil.foldlMap doDecl (IM.empty, IM.empty, IM.empty) file in file end end