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1 (* Copyright (c) 2008, Adam Chlipala
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2 * All rights reserved.
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3 *
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4 * Redistribution and use in source and binary forms, with or without
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5 * modification, are permitted provided that the following conditions are met:
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6 *
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7 * - Redistributions of source code must retain the above copyright notice,
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8 * this list of conditions and the following disclaimer.
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9 * - Redistributions in binary form must reproduce the above copyright notice,
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10 * this list of conditions and the following disclaimer in the documentation
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11 * and/or other materials provided with the distribution.
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12 * - The names of contributors may not be used to endorse or promote products
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13 * derived from this software without specific prior written permission.
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14 *
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15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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16 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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18 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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19 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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20 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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21 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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22 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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23 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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24 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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25 * POSSIBILITY OF SUCH DAMAGE.
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26 *)
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27
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28 structure Expl = struct
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29
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30 type 'a located = 'a ErrorMsg.located
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31
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32 datatype kind' =
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33 KType
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34 | KArrow of kind * kind
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35 | KName
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36 | KUnit
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37 | KTuple of kind list
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38 | KRecord of kind
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39
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40 | KRel of int
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41 | KFun of string * kind
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42
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43 withtype kind = kind' located
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44
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45 datatype con' =
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46 TFun of con * con
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47 | TCFun of string * kind * con
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48 | TRecord of con
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49
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50 | CRel of int
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51 | CNamed of int
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52 | CModProj of int * string list * string
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53 | CApp of con * con
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54 | CAbs of string * kind * con
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55
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56 | CKAbs of string * con
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57 | CKApp of con * kind
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58 | TKFun of string * con
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59
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60 | CName of string
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61
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62 | CRecord of kind * (con * con) list
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63 | CConcat of con * con
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64 | CMap of kind * kind
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65
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66 | CUnit
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67
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68 | CTuple of con list
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69 | CProj of con * int
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70
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71 withtype con = con' located
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72
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73 datatype datatype_kind = datatype DatatypeKind.datatype_kind
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74
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75 datatype patCon =
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76 PConVar of int
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77 | PConProj of int * string list * string
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78
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79 datatype pat' =
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80 PWild
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81 | PVar of string * con
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82 | PPrim of Prim.t
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83 | PCon of datatype_kind * patCon * con list * pat option
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84 | PRecord of (string * pat * con) list
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85
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86 withtype pat = pat' located
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87
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88 datatype exp' =
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89 EPrim of Prim.t
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90 | ERel of int
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91 | ENamed of int
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92 | EModProj of int * string list * string
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93 | EApp of exp * exp
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94 | EAbs of string * con * con * exp
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95 | ECApp of exp * con
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96 | ECAbs of string * kind * exp
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97
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98 | EKAbs of string * exp
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99 | EKApp of exp * kind
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100
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101 | ERecord of (con * exp * con) list
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102 | EField of exp * con * { field : con, rest : con }
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103 | EConcat of exp * con * exp * con
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104 | ECut of exp * con * { field : con, rest : con }
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105 | ECutMulti of exp * con * { rest : con }
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106
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107 | ECase of exp * (pat * exp) list * { disc : con, result : con }
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108
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109 | EWrite of exp
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110
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111 | ELet of string * con * exp * exp
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112
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113 withtype exp = exp' located
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114
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115 datatype sgn_item' =
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116 SgiConAbs of string * int * kind
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117 | SgiCon of string * int * kind * con
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118 | SgiDatatype of (string * int * string list * (string * int * con option) list) list
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119 | SgiDatatypeImp of string * int * int * string list * string * string list * (string * int * con option) list
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120 | SgiVal of string * int * con
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121 | SgiSgn of string * int * sgn
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122 | SgiStr of string * int * sgn
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123
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124 and sgn' =
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125 SgnConst of sgn_item list
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126 | SgnVar of int
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127 | SgnFun of string * int * sgn * sgn
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128 | SgnWhere of sgn * string * con
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129 | SgnProj of int * string list * string
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130
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131 withtype sgn_item = sgn_item' located
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132 and sgn = sgn' located
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133
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134 datatype decl' =
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135 DCon of string * int * kind * con
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136 | DDatatype of (string * int * string list * (string * int * con option) list) list
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137 | DDatatypeImp of string * int * int * string list * string * string list * (string * int * con option) list
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138 | DVal of string * int * con * exp
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139 | DValRec of (string * int * con * exp) list
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140 | DSgn of string * int * sgn
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141 | DStr of string * int * sgn * str
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142 | DFfiStr of string * int * sgn
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143 | DExport of int * sgn * str
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144 | DTable of int * string * int * con * exp * con * exp * con
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145 | DSequence of int * string * int
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146 | DView of int * string * int * exp * con
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147 | DDatabase of string
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148 | DCookie of int * string * int * con
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149 | DStyle of int * string * int
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150 | DTask of exp * exp
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151
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152 and str' =
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153 StrConst of decl list
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154 | StrVar of int
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155 | StrProj of str * string
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156 | StrFun of string * int * sgn * sgn * str
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157 | StrApp of str * str
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158
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159 withtype decl = decl' located
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160 and str = str' located
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161
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162 type file = decl list
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163
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164 end
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