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Avoid state space explosion with ECase that just writes a constant in each case
author Adam Chlipala <adamc@hcoop.net>
date Sun, 18 Apr 2010 20:06:15 -0400
parents 7a31e0cf25e9
children acabf3935060
rev   line source
adamc@29 1 (* Copyright (c) 2008, Adam Chlipala
adamc@29 2 * All rights reserved.
adamc@29 3 *
adamc@29 4 * Redistribution and use in source and binary forms, with or without
adamc@29 5 * modification, are permitted provided that the following conditions are met:
adamc@29 6 *
adamc@29 7 * - Redistributions of source code must retain the above copyright notice,
adamc@29 8 * this list of conditions and the following disclaimer.
adamc@29 9 * - Redistributions in binary form must reproduce the above copyright notice,
adamc@29 10 * this list of conditions and the following disclaimer in the documentation
adamc@29 11 * and/or other materials provided with the distribution.
adamc@29 12 * - The names of contributors may not be used to endorse or promote products
adamc@29 13 * derived from this software without specific prior written permission.
adamc@29 14 *
adamc@29 15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
adamc@29 16 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
adamc@29 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
adamc@29 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
adamc@29 19 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
adamc@29 20 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
adamc@29 21 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
adamc@29 22 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
adamc@29 23 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
adamc@29 24 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
adamc@29 25 * POSSIBILITY OF SUCH DAMAGE.
adamc@29 26 *)
adamc@29 27
adamc@29 28 structure Cjr = struct
adamc@29 29
adamc@29 30 type 'a located = 'a ErrorMsg.located
adamc@29 31
adamc@731 32 datatype datatype_kind = datatype DatatypeKind.datatype_kind
adamc@188 33
adamc@29 34 datatype typ' =
adamc@269 35 TFun of typ * typ
adamc@29 36 | TRecord of int
adamc@196 37 | TDatatype of datatype_kind * int * (string * int * typ option) list ref
adamc@53 38 | TFfi of string * string
adamc@288 39 | TOption of typ
adamc@757 40 | TList of typ * int
adamc@29 41
adamc@29 42 withtype typ = typ' located
adamc@29 43
adamc@181 44 datatype patCon =
adamc@181 45 PConVar of int
adamc@186 46 | PConFfi of {mod : string, datatyp : string, con : string, arg : typ option}
adamc@181 47
adamc@181 48 datatype pat' =
adamc@181 49 PWild
adamc@182 50 | PVar of string * typ
adamc@181 51 | PPrim of Prim.t
adamc@188 52 | PCon of datatype_kind * patCon * pat option
adamc@182 53 | PRecord of (string * pat * typ) list
adamc@288 54 | PNone of typ
adamc@288 55 | PSome of typ * pat
adamc@181 56
adamc@181 57 withtype pat = pat' located
adamc@181 58
adamc@29 59 datatype exp' =
adamc@29 60 EPrim of Prim.t
adamc@29 61 | ERel of int
adamc@29 62 | ENamed of int
adamc@188 63 | ECon of datatype_kind * patCon * exp option
adamc@297 64 | ENone of typ
adamc@290 65 | ESome of typ * exp
adamc@53 66 | EFfi of string * string
adamc@53 67 | EFfiApp of string * string * exp list
adamc@316 68 | EApp of exp * exp list
adamc@29 69
adamc@387 70 | EUnop of string * exp
adamc@387 71 | EBinop of string * exp * exp
adamc@387 72
adamc@29 73 | ERecord of int * (string * exp) list
adamc@29 74 | EField of exp * string
adamc@29 75
adamc@182 76 | ECase of exp * (pat * exp) list * { disc : typ, result : typ }
adamc@181 77
adamc@283 78 | EError of exp * typ
adamc@741 79 | EReturnBlob of {blob : exp, mimeType : exp, t : typ}
adamc@1065 80 | ERedirect of exp * typ
adamc@283 81
adamc@102 82 | EWrite of exp
adamc@106 83 | ESeq of exp * exp
adamc@269 84 | ELet of string * typ * exp * exp
adamc@269 85
adamc@269 86 | EQuery of { exps : (string * typ) list,
adamc@269 87 tables : (string * (string * typ) list) list,
adamc@269 88 rnum : int,
adamc@269 89 state : typ,
adamc@269 90 query : exp,
adamc@269 91 body : exp,
adamc@282 92 initial : exp,
adamc@879 93 prepared : {id : int, query : string, nested : bool} option }
adamc@307 94 | EDml of { dml : exp,
adamc@879 95 prepared : {id : int, dml : string} option }
adamc@338 96 | ENextval of { seq : exp,
adamc@879 97 prepared : {id : int, query : string} option }
adamc@1073 98 | ESetval of { seq : exp, count : exp }
adamc@1112 99 | EUnurlify of exp * typ * bool
adamc@102 100
adamc@29 101 withtype exp = exp' located
adamc@29 102
adamc@1075 103 datatype task = Initialize
adamc@1075 104
adamc@29 105 datatype decl' =
adamc@29 106 DStruct of int * (string * typ) list
adamc@809 107 | DDatatype of (datatype_kind * string * int * (string * int * typ option) list) list
adamc@196 108 | DDatatypeForward of datatype_kind * string * int
adamc@29 109 | DVal of string * int * typ * exp
adamc@121 110 | DFun of string * int * (string * typ) list * typ * exp
adamc@129 111 | DFunRec of (string * int * (string * typ) list * typ * exp) list
adamc@273 112
adamc@707 113 | DTable of string * (string * typ) list * string * (string * string) list
adamc@338 114 | DSequence of string
adamc@754 115 | DView of string * (string * typ) list * string
adamc@687 116 | DDatabase of {name : string, expunge : int, initialize : int}
adamc@282 117 | DPreparedStatements of (string * int) list
adamc@29 118
adamc@569 119 | DJavaScript of string
adamc@725 120 | DCookie of string
adamc@720 121 | DStyle of string
adamc@569 122
adamc@1075 123 | DTask of task * exp
adamc@1073 124
adamc@29 125 withtype decl = decl' located
adamc@29 126
adamc@643 127 datatype sidedness =
adamc@643 128 ServerOnly
adamc@693 129 | ServerAndPull
adamc@693 130 | ServerAndPullAndPush
adamc@643 131
adamc@731 132 datatype effect = datatype Export.effect
adamc@731 133 datatype export_kind = datatype Export.export_kind
adamc@731 134
adamc@1104 135 type file = decl list * (export_kind * string * int * typ list * typ * sidedness * bool) list
adamc@29 136
adamc@29 137 end