Mercurial > urweb
view src/cjr.sml @ 534:65c253a9ca92
Pattern typing
author | Adam Chlipala <adamc@hcoop.net> |
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date | Sat, 29 Nov 2008 10:49:47 -0500 |
parents | bb27c7efcd90 |
children | 162d5308e34f |
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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 Cjr = struct type 'a located = 'a ErrorMsg.located datatype datatype_kind = datatype Mono.datatype_kind datatype typ' = TFun of typ * typ | TRecord of int | TDatatype of datatype_kind * int * (string * int * typ option) list ref | TFfi of string * string | TOption of typ withtype typ = typ' located datatype patCon = PConVar of int | PConFfi of {mod : string, datatyp : string, con : string, arg : typ option} datatype pat' = PWild | PVar of string * typ | PPrim of Prim.t | PCon of datatype_kind * patCon * pat option | PRecord of (string * pat * typ) list | PNone of typ | PSome of typ * pat withtype pat = pat' located datatype exp' = EPrim of Prim.t | ERel of int | ENamed of int | ECon of datatype_kind * patCon * exp option | ENone of typ | ESome of typ * exp | EFfi of string * string | EFfiApp of string * string * exp list | EApp of exp * exp list | EUnop of string * exp | EBinop of string * exp * exp | ERecord of int * (string * exp) list | EField of exp * string | ECase of exp * (pat * exp) list * { disc : typ, result : typ } | EError of exp * typ | EWrite of exp | ESeq of exp * exp | ELet of string * typ * exp * exp | EQuery of { exps : (string * typ) list, tables : (string * (string * typ) list) list, rnum : int, state : typ, query : exp, body : exp, initial : exp, prepared : int option } | EDml of { dml : exp, prepared : int option } | ENextval of { seq : exp, prepared : int option } | EUnurlify of exp * typ withtype exp = exp' located datatype decl' = DStruct of int * (string * typ) list | DDatatype of datatype_kind * string * int * (string * int * typ option) list | DDatatypeForward of datatype_kind * string * int | DVal of string * int * typ * exp | DFun of string * int * (string * typ) list * typ * exp | DFunRec of (string * int * (string * typ) list * typ * exp) list | DTable of string * (string * typ) list | DSequence of string | DDatabase of string | DPreparedStatements of (string * int) list withtype decl = decl' located type file = decl list * (Core.export_kind * string * int * typ list) list end