annotate src/expl.sml @ 72:0ee10f4d73cf

Explify efold
author Adam Chlipala <adamc@hcoop.net>
date Thu, 26 Jun 2008 11:11:13 -0400
parents c1e21ab42896
children 275aaeb73f1f
rev   line source
adamc@38 1 (* Copyright (c) 2008, Adam Chlipala
adamc@38 2 * All rights reserved.
adamc@38 3 *
adamc@38 4 * Redistribution and use in source and binary forms, with or without
adamc@38 5 * modification, are permitted provided that the following conditions are met:
adamc@38 6 *
adamc@38 7 * - Redistributions of source code must retain the above copyright notice,
adamc@38 8 * this list of conditions and the following disclaimer.
adamc@38 9 * - Redistributions in binary form must reproduce the above copyright notice,
adamc@38 10 * this list of conditions and the following disclaimer in the documentation
adamc@38 11 * and/or other materials provided with the distribution.
adamc@38 12 * - The names of contributors may not be used to endorse or promote products
adamc@38 13 * derived from this software without specific prior written permission.
adamc@38 14 *
adamc@38 15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
adamc@38 16 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
adamc@38 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
adamc@38 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
adamc@38 19 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
adamc@38 20 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
adamc@38 21 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
adamc@38 22 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
adamc@38 23 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
adamc@38 24 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
adamc@38 25 * POSSIBILITY OF SUCH DAMAGE.
adamc@38 26 *)
adamc@38 27
adamc@38 28 structure Expl = struct
adamc@38 29
adamc@38 30 type 'a located = 'a ErrorMsg.located
adamc@38 31
adamc@38 32 datatype kind' =
adamc@38 33 KType
adamc@38 34 | KArrow of kind * kind
adamc@38 35 | KName
adamc@38 36 | KRecord of kind
adamc@38 37
adamc@38 38 withtype kind = kind' located
adamc@38 39
adamc@38 40 datatype con' =
adamc@38 41 TFun of con * con
adamc@38 42 | TCFun of string * kind * con
adamc@38 43 | TRecord of con
adamc@38 44
adamc@38 45 | CRel of int
adamc@38 46 | CNamed of int
adamc@38 47 | CModProj of int * string list * string
adamc@38 48 | CApp of con * con
adamc@38 49 | CAbs of string * kind * con
adamc@38 50
adamc@38 51 | CName of string
adamc@38 52
adamc@38 53 | CRecord of kind * (con * con) list
adamc@38 54 | CConcat of con * con
adamc@68 55 | CFold of kind * kind
adamc@38 56
adamc@38 57 withtype con = con' located
adamc@38 58
adamc@38 59 datatype exp' =
adamc@38 60 EPrim of Prim.t
adamc@38 61 | ERel of int
adamc@38 62 | ENamed of int
adamc@38 63 | EModProj of int * string list * string
adamc@38 64 | EApp of exp * exp
adamc@38 65 | EAbs of string * con * con * exp
adamc@38 66 | ECApp of exp * con
adamc@38 67 | ECAbs of string * kind * exp
adamc@38 68
adamc@38 69 | ERecord of (con * exp * con) list
adamc@38 70 | EField of exp * con * { field : con, rest : con }
adamc@72 71 | EFold of kind
adamc@38 72
adamc@38 73 withtype exp = exp' located
adamc@38 74
adamc@38 75 datatype sgn_item' =
adamc@38 76 SgiConAbs of string * int * kind
adamc@38 77 | SgiCon of string * int * kind * con
adamc@38 78 | SgiVal of string * int * con
adamc@64 79 | SgiSgn of string * int * sgn
adamc@38 80 | SgiStr of string * int * sgn
adamc@38 81
adamc@38 82 and sgn' =
adamc@38 83 SgnConst of sgn_item list
adamc@38 84 | SgnVar of int
adamc@45 85 | SgnFun of string * int * sgn * sgn
adamc@45 86 | SgnWhere of sgn * string * con
adamc@64 87 | SgnProj of int * string list * string
adamc@38 88
adamc@38 89 withtype sgn_item = sgn_item' located
adamc@38 90 and sgn = sgn' located
adamc@38 91
adamc@38 92 datatype decl' =
adamc@38 93 DCon of string * int * kind * con
adamc@38 94 | DVal of string * int * con * exp
adamc@38 95 | DSgn of string * int * sgn
adamc@38 96 | DStr of string * int * sgn * str
adamc@48 97 | DFfiStr of string * int * sgn
adamc@38 98
adamc@38 99 and str' =
adamc@38 100 StrConst of decl list
adamc@38 101 | StrVar of int
adamc@38 102 | StrProj of str * string
adamc@45 103 | StrFun of string * int * sgn * sgn * str
adamc@45 104 | StrApp of str * str
adamc@38 105
adamc@38 106 withtype decl = decl' located
adamc@38 107 and str = str' located
adamc@38 108
adamc@38 109 type file = decl list
adamc@38 110
adamc@38 111 end