Mercurial > urweb
view src/sidecheck.sml @ 1998:cc7e5d469d1b
Protect uw_Basis_new_client_source from invalid ctx->id
We assume that FFI code may create new contextes with id left unassigned
author | Sergey Mironov <grrwlf@gmail.com> |
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date | Wed, 26 Feb 2014 09:43:47 +0000 |
parents | 7bb8c560f23d |
children | ebfaab689570 |
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(* Copyright (c) 2011, 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 SideCheck :> SIDE_CHECK = struct open Mono structure E = ErrorMsg fun check ds = (MonoUtil.File.appLoc (fn (e, loc) => let fun error (k as (k1, k2)) = if Settings.isClientOnly k then let val k2 = case k1 of "Basis" => (case k2 of "get_client_source" => "get" | _ => k2) | _ => k2 in E.errorAt loc ("Server-side code uses client-side-only identifier \"" ^ k1 ^ "." ^ k2 ^ "\"") end else () in case e of EFfi k => error k | EFfiApp (k1, k2, _) => error (k1, k2) | _ => () end) ds; ds) end