adamc@2
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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 Elab = 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 | KRecord of kind
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adamc@82
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37 | KUnit
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38 | KTuple of kind list
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39
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40 | KError
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41 | KUnif of ErrorMsg.span * string * kind option ref
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42
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43 | KRel of int
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44 | KFun of string * kind
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45
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46 withtype kind = kind' located
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47
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48 datatype explicitness =
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49 Explicit
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50 | Implicit
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51
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52 datatype con' =
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53 TFun of con * con
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54 | TCFun of explicitness * string * kind * con
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55 | TRecord of con
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56 | TDisjoint of con * con * con
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57
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58 | CRel of int
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59 | CNamed of int
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60 | CModProj of int * string list * string
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61 | CApp of con * con
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62 | CAbs of string * kind * con
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63
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64 | CKAbs of string * con
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65 | CKApp of con * kind
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66 | TKFun of string * con
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67
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68 | CName of string
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69
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70 | CRecord of kind * (con * con) list
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71 | CConcat of con * con
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72 | CMap of kind * kind
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73
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74 | CUnit
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75
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76 | CTuple of con list
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77 | CProj of con * int
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78
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79 | CError
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80 | CUnif of ErrorMsg.span * kind * string * con option ref
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81
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82 withtype con = con' located
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83
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84 datatype datatype_kind = datatype DatatypeKind.datatype_kind
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85
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86 datatype patCon =
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87 PConVar of int
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88 | PConProj of int * string list * string
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89
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90 datatype pat' =
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91 PWild
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92 | PVar of string * con
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93 | PPrim of Prim.t
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94 | PCon of datatype_kind * patCon * con list * pat option
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95 | PRecord of (string * pat * con) list
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96
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97 withtype pat = pat' located
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98
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99 datatype exp' =
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100 EPrim of Prim.t
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101 | ERel of int
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102 | ENamed of int
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103 | EModProj of int * string list * string
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adamc@9
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104 | EApp of exp * exp
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adamc@26
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105 | EAbs of string * con * con * exp
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adamc@9
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106 | ECApp of exp * con
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adamc@9
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107 | ECAbs of explicitness * string * kind * exp
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108
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109 | EKAbs of string * exp
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110 | EKApp of exp * kind
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111
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112 | ERecord of (con * exp * con) list
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113 | EField of exp * con * { field : con, rest : con }
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114 | EConcat of exp * con * exp * con
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115 | ECut of exp * con * { field : con, rest : con }
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116 | ECutMulti of exp * con * { rest : con }
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117
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118 | ECase of exp * (pat * exp) list * { disc : con, result : con }
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119
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120 | EError
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121 | EUnif of exp option ref
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122
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123 | ELet of edecl list * exp * con
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124
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125 and edecl' =
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126 EDVal of pat * con * exp
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127 | EDValRec of (string * con * exp) list
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128
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129 withtype exp = exp' located
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130 and edecl = edecl' located
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131
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132 datatype sgn_item' =
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133 SgiConAbs of string * int * kind
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134 | SgiCon of string * int * kind * con
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135 | SgiDatatype of (string * int * string list * (string * int * con option) list) list
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136 | SgiDatatypeImp of string * int * int * string list * string * string list * (string * int * con option) list
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137 | SgiVal of string * int * con
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138 | SgiStr of string * int * sgn
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139 | SgiSgn of string * int * sgn
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140 | SgiConstraint of con * con
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141 | SgiClassAbs of string * int * kind
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142 | SgiClass of string * int * kind * con
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143
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144 and sgn' =
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145 SgnConst of sgn_item list
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146 | SgnVar of int
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147 | SgnFun of string * int * sgn * sgn
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148 | SgnWhere of sgn * string * con
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149 | SgnProj of int * string list * string
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150 | SgnError
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151
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152 withtype sgn_item = sgn_item' located
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153 and sgn = sgn' located
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154
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155 datatype decl' =
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156 DCon of string * int * kind * con
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157 | DDatatype of (string * int * string list * (string * int * con option) list) list
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158 | DDatatypeImp of string * int * int * string list * string * string list * (string * int * con option) list
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159 | DVal of string * int * con * exp
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160 | DValRec of (string * int * con * exp) list
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161 | DSgn of string * int * sgn
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162 | DStr of string * int * sgn * str
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163 | DFfiStr of string * int * sgn
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164 | DConstraint of con * con
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165 | DExport of int * sgn * str
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166 | DTable of int * string * int * con * exp * con * exp * con
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167 | DSequence of int * string * int
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168 | DView of int * string * int * exp * con
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169 | DClass of string * int * kind * con
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170 | DDatabase of string
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171 | DCookie of int * string * int * con
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172 | DStyle of int * string * int
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adamc@1075
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173 | DTask of exp * exp
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adamc@1199
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174 | DPolicy of exp
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adam@1294
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175 | DOnError of int * string list * string
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176
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177 and str' =
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178 StrConst of decl list
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179 | StrVar of int
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180 | StrProj of str * string
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181 | StrFun of string * int * sgn * sgn * str
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182 | StrApp of str * str
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183 | StrError
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184
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185 withtype decl = decl' located
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186 and str = str' located
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187
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188 type file = decl list
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189
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190 end
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