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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 signature FLAT_UTIL = sig
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29
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30 structure Typ : sig
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31 val mapfold : (Flat.typ', 'state, 'abort) Search.mapfolder
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32 -> (Flat.typ, 'state, 'abort) Search.mapfolder
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33
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34 val map : (Flat.typ' -> Flat.typ')
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35 -> Flat.typ -> Flat.typ
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36
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37 val fold : (Flat.typ' * 'state -> 'state)
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38 -> 'state -> Flat.typ -> 'state
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39
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40 val exists : (Flat.typ' -> bool) -> Flat.typ -> bool
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41 end
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42
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43 structure Exp : sig
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44 datatype binder =
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45 NamedT of string * int * Flat.typ option
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46 | RelE of string * Flat.typ
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47 | NamedE of string * int * Flat.typ * Flat.exp option
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48
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49 val mapfoldB : {typ : (Flat.typ', 'state, 'abort) Search.mapfolder,
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50 exp : ('typtext, Flat.exp', 'state, 'abort) Search.mapfolderB,
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51 bind : 'typtext * binder -> 'typtext}
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52 -> ('typtext, Flat.exp, 'state, 'abort) Search.mapfolderB
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53 val mapfold : {typ : (Flat.typ', 'state, 'abort) Search.mapfolder,
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54 exp : (Flat.exp', 'state, 'abort) Search.mapfolder}
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55 -> (Flat.exp, 'state, 'abort) Search.mapfolder
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56
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57 val map : {typ : Flat.typ' -> Flat.typ',
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58 exp : Flat.exp' -> Flat.exp'}
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59 -> Flat.exp -> Flat.exp
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60 val mapB : {typ : Flat.typ' -> Flat.typ',
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61 exp : 'typtext -> Flat.exp' -> Flat.exp',
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62 bind : 'typtext * binder -> 'typtext}
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63 -> 'typtext -> (Flat.exp -> Flat.exp)
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64
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65 val fold : {typ : Flat.typ' * 'state -> 'state,
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66 exp : Flat.exp' * 'state -> 'state}
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67 -> 'state -> Flat.exp -> 'state
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68
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69 val exists : {typ : Flat.typ' -> bool,
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70 exp : Flat.exp' -> bool} -> Flat.exp -> bool
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71 end
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72
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73 structure Decl : sig
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74 datatype binder = datatype Exp.binder
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75
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76 val mapfoldB : {typ : (Flat.typ', 'state, 'abort) Search.mapfolder,
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77 exp : ('typtext, Flat.exp', 'state, 'abort) Search.mapfolderB,
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78 decl : ('typtext, Flat.decl', 'state, 'abort) Search.mapfolderB,
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79 bind : 'typtext * binder -> 'typtext}
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80 -> ('typtext, Flat.decl, 'state, 'abort) Search.mapfolderB
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81 val mapfold : {typ : (Flat.typ', 'state, 'abort) Search.mapfolder,
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82 exp : (Flat.exp', 'state, 'abort) Search.mapfolder,
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83 decl : (Flat.decl', 'state, 'abort) Search.mapfolder}
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84 -> (Flat.decl, 'state, 'abort) Search.mapfolder
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85
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86 val fold : {typ : Flat.typ' * 'state -> 'state,
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87 exp : Flat.exp' * 'state -> 'state,
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88 decl : Flat.decl' * 'state -> 'state}
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89 -> 'state -> Flat.decl -> 'state
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90 end
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91
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92 structure File : sig
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93 datatype binder =
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94 NamedT of string * int * Flat.typ option
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95 | RelE of string * Flat.typ
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96 | NamedE of string * int * Flat.typ * Flat.exp option
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97 | F of int * string * Flat.typ * Flat.typ * Flat.exp
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98
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99 val mapfoldB : {typ : (Flat.typ', 'state, 'abort) Search.mapfolder,
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100 exp : ('typtext, Flat.exp', 'state, 'abort) Search.mapfolderB,
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101 decl : ('typtext, Flat.decl', 'state, 'abort) Search.mapfolderB,
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102 bind : 'typtext * binder -> 'typtext}
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103 -> ('typtext, Flat.file, 'state, 'abort) Search.mapfolderB
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104
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105 val mapfold : {typ : (Flat.typ', 'state, 'abort) Search.mapfolder,
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106 exp : (Flat.exp', 'state, 'abort) Search.mapfolder,
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107 decl : (Flat.decl', 'state, 'abort) Search.mapfolder}
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108 -> (Flat.file, 'state, 'abort) Search.mapfolder
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109
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110 val mapB : {typ : Flat.typ' -> Flat.typ',
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111 exp : 'typtext -> Flat.exp' -> Flat.exp',
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112 decl : 'typtext -> Flat.decl' -> Flat.decl',
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113 bind : 'typtext * binder -> 'typtext}
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114 -> 'typtext -> Flat.file -> Flat.file
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115
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116 val fold : {typ : Flat.typ' * 'state -> 'state,
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117 exp : Flat.exp' * 'state -> 'state,
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118 decl : Flat.decl' * 'state -> 'state}
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119 -> 'state -> Flat.file -> 'state
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120 end
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121
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122 end
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