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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 Flat = 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 typ' =
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33 TTop
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34 | TFun of typ * typ
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35 | TCode of typ * typ
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36 | TRecord of (string * typ) list
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37 | TNamed of int
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38
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39 withtype typ = typ' located
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40
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41 datatype exp' =
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42 EPrim of Prim.t
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43 | ERel of int
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44 | ENamed of int
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45 | ECode of int
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46 | EApp of exp * exp
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47
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48 | ERecord of (string * exp * typ) list
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49 | EField of exp * string
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50
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51 | ELet of (string * typ * exp) list * exp
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52
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53 withtype exp = exp' located
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54
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55 datatype decl' =
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56 DVal of string * int * typ * exp
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57 | DFun of int * string * typ * typ * exp
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58
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59 withtype decl = decl' located
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60
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61 type file = decl list
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62
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63 end
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