annotate src/source.sml @ 18:9a578171de9e

Unification wildcards
author Adam Chlipala <adamc@hcoop.net>
date Sun, 08 Jun 2008 14:25:27 -0400
parents f1c36df29ed7
children e6ccf961d8a3
rev   line source
adamc@0 1 (* Copyright (c) 2008, Adam Chlipala
adamc@0 2 * All rights reserved.
adamc@0 3 *
adamc@0 4 * Redistribution and use in source and binary forms, with or without
adamc@0 5 * modification, are permitted provided that the following conditions are met:
adamc@0 6 *
adamc@0 7 * - Redistributions of source code must retain the above copyright notice,
adamc@0 8 * this list of conditions and the following disclaimer.
adamc@0 9 * - Redistributions in binary form must reproduce the above copyright notice,
adamc@0 10 * this list of conditions and the following disclaimer in the documentation
adamc@0 11 * and/or other materials provided with the distribution.
adamc@0 12 * - The names of contributors may not be used to endorse or promote products
adamc@0 13 * derived from this software without specific prior written permission.
adamc@0 14 *
adamc@0 15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
adamc@0 16 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
adamc@0 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
adamc@0 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
adamc@0 19 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
adamc@0 20 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
adamc@0 21 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
adamc@0 22 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
adamc@0 23 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
adamc@0 24 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
adamc@0 25 * POSSIBILITY OF SUCH DAMAGE.
adamc@0 26 *)
adamc@0 27
adamc@4 28 structure Source = struct
adamc@0 29
adamc@0 30 type 'a located = 'a ErrorMsg.located
adamc@0 31
adamc@0 32 datatype kind' =
adamc@0 33 KType
adamc@0 34 | KArrow of kind * kind
adamc@0 35 | KName
adamc@0 36 | KRecord of kind
adamc@18 37 | KWild
adamc@0 38
adamc@0 39 withtype kind = kind' located
adamc@0 40
adamc@1 41 datatype explicitness =
adamc@1 42 Explicit
adamc@1 43 | Implicit
adamc@1 44
adamc@0 45 datatype con' =
adamc@0 46 CAnnot of con * kind
adamc@0 47
adamc@0 48 | TFun of con * con
adamc@1 49 | TCFun of explicitness * string * kind * con
adamc@0 50 | TRecord of con
adamc@0 51
adamc@1 52 | CVar of string
adamc@0 53 | CApp of con * con
adamc@8 54 | CAbs of string * kind * con
adamc@0 55
adamc@0 56 | CName of string
adamc@0 57
adamc@1 58 | CRecord of (con * con) list
adamc@0 59 | CConcat of con * con
adamc@0 60
adamc@18 61 | CWild of kind
adamc@18 62
adamc@0 63 withtype con = con' located
adamc@0 64
adamc@8 65 datatype exp' =
adamc@8 66 EAnnot of exp * con
adamc@8 67
adamc@14 68 | EPrim of Prim.t
adamc@8 69 | EVar of string
adamc@8 70 | EApp of exp * exp
adamc@8 71 | EAbs of string * con option * exp
adamc@8 72 | ECApp of exp * con
adamc@8 73 | ECAbs of explicitness * string * kind * exp
adamc@8 74
adamc@12 75 | ERecord of (con * exp) list
adamc@12 76 | EField of exp * con
adamc@12 77
adamc@8 78 withtype exp = exp' located
adamc@8 79
adamc@1 80 datatype decl' =
adamc@1 81 DCon of string * kind option * con
adamc@8 82 | DVal of string * con option * exp
adamc@1 83
adamc@1 84 withtype decl = decl' located
adamc@1 85
adamc@1 86 type file = decl list
adamc@1 87
adamc@0 88 end