adamc@16
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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 (* Pretty-printing core Ur/Web *)
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29
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30 structure CorePrint :> CORE_PRINT = struct
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31
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32 open Print.PD
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33 open Print
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34
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35 open Core
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36
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37 structure E = CoreEnv
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38
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39 val debug = ref false
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40
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41 fun p_kind' par (k, _) =
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42 case k of
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43 KType => string "Type"
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44 | KArrow (k1, k2) => parenIf par (box [p_kind' true k1,
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45 space,
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46 string "->",
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47 space,
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48 p_kind k2])
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49 | KName => string "Name"
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50 | KRecord k => box [string "{", p_kind k, string "}"]
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51 | KUnit => string "Unit"
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52 | KTuple ks => box [string "(",
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53 p_list_sep (box [space, string "*", space]) p_kind ks,
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54 string ")"]
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55
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56 and p_kind k = p_kind' false k
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57
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58 fun p_con' par env (c, _) =
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59 case c of
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60 TFun (t1, t2) => parenIf par (box [p_con' true env t1,
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61 space,
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62 string "->",
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63 space,
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64 p_con env t2])
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65 | TCFun (x, k, c) => parenIf par (box [string x,
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66 space,
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67 string "::",
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68 space,
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69 p_kind k,
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70 space,
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71 string "->",
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72 space,
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73 p_con (E.pushCRel env x k) c])
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74 | TRecord (CRecord (_, xcs), _) => box [string "{",
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75 p_list (fn (x, c) =>
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76 box [p_name env x,
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77 space,
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78 string ":",
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79 space,
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80 p_con env c]) xcs,
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81 string "}"]
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82 | TRecord c => box [string "$",
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83 p_con' true env c]
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84
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85 | CRel n =>
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86 ((if !debug then
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87 string (#1 (E.lookupCRel env n) ^ "_" ^ Int.toString n)
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88 else
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89 string (#1 (E.lookupCRel env n)))
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90 handle E.UnboundRel _ => string ("UNBOUND_" ^ Int.toString n))
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91 | CNamed n =>
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92 ((if !debug then
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93 string (#1 (E.lookupCNamed env n) ^ "__" ^ Int.toString n)
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94 else
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95 string (#1 (E.lookupCNamed env n)))
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96 handle E.UnboundNamed _ => string ("UNBOUNDN_" ^ Int.toString n))
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97 | CFfi (m, x) => box [string "FFI(", string m, string ".", string x, string ")"]
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98
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99 | CApp (c1, c2) => parenIf par (box [p_con env c1,
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100 space,
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101 p_con' true env c2])
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102 | CAbs (x, k, c) => parenIf par (box [string "fn",
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103 space,
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104 string x,
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105 space,
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106 string "::",
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107 space,
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108 p_kind k,
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109 space,
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110 string "=>",
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111 space,
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112 p_con (E.pushCRel env x k) c])
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113
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114 | CName s => box [string "#", string s]
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115
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116 | CRecord (k, xcs) =>
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117 if !debug then
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118 parenIf par (box [string "[",
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119 p_list (fn (x, c) =>
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120 box [p_con env x,
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121 space,
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122 string "=",
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123 space,
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124 p_con env c]) xcs,
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125 string "]::",
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126 p_kind k])
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127 else
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128 parenIf par (box [string "[",
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129 p_list (fn (x, c) =>
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130 box [p_con env x,
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131 space,
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132 string "=",
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133 space,
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134 p_con env c]) xcs,
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135 string "]"])
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136 | CConcat (c1, c2) => parenIf par (box [p_con' true env c1,
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137 space,
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138 string "++",
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139 space,
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140 p_con env c2])
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141 | CFold _ => string "fold"
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142 | CUnit => string "()"
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143
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144 | CTuple cs => box [string "(",
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145 p_list (p_con env) cs,
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146 string ")"]
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147 | CProj (c, n) => box [p_con env c,
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148 string ".",
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149 string (Int.toString n)]
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150
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151 and p_con env = p_con' false env
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152
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153 and p_name env (all as (c, _)) =
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154 case c of
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155 CName s => string s
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156 | _ => p_con env all
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157
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158 fun p_enamed env n =
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159 (if !debug then
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160 string (#1 (E.lookupENamed env n) ^ "__" ^ Int.toString n)
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161 else
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162 string (#1 (E.lookupENamed env n)))
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163 handle E.UnboundNamed _ => string ("UNBOUNDN_" ^ Int.toString n)
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164
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165 fun p_con_named env n =
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166 (if !debug then
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167 string (#1 (E.lookupConstructor env n) ^ "__" ^ Int.toString n)
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168 else
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169 string (#1 (E.lookupConstructor env n)))
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170 handle E.UnboundNamed _ => string ("CONSTRUCTOR_" ^ Int.toString n)
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171
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172 fun p_patCon env pc =
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173 case pc of
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174 PConVar n => p_con_named env n
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175 | PConFfi {mod = m, con, ...} => box [string "FFIC(",
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176 string m,
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177 string ".",
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178 string con,
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179 string ")"]
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180
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181 fun p_pat' par env (p, _) =
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182 case p of
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183 PWild => string "_"
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184 | PVar (s, _) => string s
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185 | PPrim p => Prim.p_t p
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186 | PCon (_, n, _, NONE) => p_patCon env n
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187 | PCon (_, n, _, SOME p) => parenIf par (box [p_patCon env n,
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188 space,
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189 p_pat' true env p])
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190 | PRecord xps =>
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191 box [string "{",
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192 p_list_sep (box [string ",", space]) (fn (x, p, _) =>
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193 box [string x,
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194 space,
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195 string "=",
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196 space,
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197 p_pat env p]) xps,
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198 string "}"]
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199
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200 and p_pat x = p_pat' false x
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201
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202 fun p_exp' par env (e, _) =
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203 case e of
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204 EPrim p => Prim.p_t p
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205 | ERel n =>
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206 ((if !debug then
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207 string (#1 (E.lookupERel env n) ^ "_" ^ Int.toString n)
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208 else
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209 string (#1 (E.lookupERel env n)))
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210 handle E.UnboundRel _ => string ("UNBOUND_" ^ Int.toString n))
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211 | ENamed n => p_enamed env n
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212 | ECon (_, pc, ts, NONE) => box [string "[",
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213 p_patCon env pc,
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214 p_list_sep (box []) (fn t => box [space, string "[", p_con env t, string "]"]) ts,
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215 string "]"]
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216 | ECon (_, pc, ts, SOME e) => box [string "[",
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217 p_patCon env pc,
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218 space,
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219 p_exp' true env e,
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220 p_list_sep (box []) (fn t => box [space, string "[", p_con env t, string "]"]) ts,
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221 string "]"]
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222 | EFfi (m, x) => box [string "FFI(", string m, string ".", string x, string ")"]
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223 | EFfiApp (m, x, es) => box [string "FFI(",
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224 string m,
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225 string ".",
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226 string x,
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227 string "(",
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228 p_list (p_exp env) es,
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229 string "))"]
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230 | EApp (e1, e2) => parenIf par (box [p_exp' true env e1,
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231 space,
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232 p_exp' true env e2])
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233 | EAbs (x, t, _, e) => parenIf par (box [string "fn",
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234 space,
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235 string x,
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236 space,
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237 string ":",
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238 space,
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239 p_con env t,
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240 space,
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241 string "=>",
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242 space,
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243 p_exp (E.pushERel env x t) e])
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244 | ECApp (e, c) => parenIf par (box [p_exp env e,
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245 space,
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246 string "[",
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247 p_con env c,
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248 string "]"])
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249 | ECAbs (x, k, e) => parenIf par (box [string "fn",
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250 space,
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251 string x,
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252 space,
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253 string "::",
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254 space,
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255 p_kind k,
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256 space,
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257 string "=>",
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258 space,
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259 p_exp (E.pushCRel env x k) e])
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260
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261 | ERecord xes => box [string "{",
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262 p_list (fn (x, e, _) =>
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263 box [p_name env x,
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264 space,
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265 string "=",
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266 space,
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267 p_exp env e]) xes,
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268 string "}"]
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269 | EField (e, c, {field, rest}) =>
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270 if !debug then
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271 box [p_exp' true env e,
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272 string ".",
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273 p_con' true env c,
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274 space,
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275 string "[",
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276 p_con env field,
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277 space,
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278 string " in ",
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279 space,
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280 p_con env rest,
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281 string "]"]
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282 else
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283 box [p_exp' true env e,
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284 string ".",
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285 p_con' true env c]
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286 | EConcat (e1, c1, e2, c2) =>
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287 parenIf par (if !debug then
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288 box [p_exp' true env e1,
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289 space,
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290 string ":",
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291 space,
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292 p_con env c1,
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293 space,
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294 string "++",
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295 space,
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296 p_exp' true env e2,
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297 space,
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298 string ":",
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299 space,
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300 p_con env c2]
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301 else
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302 box [p_exp' true env e1,
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303 space,
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304 string "with",
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305 space,
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306 p_exp' true env e2])
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307 | ECut (e, c, {field, rest}) =>
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308 parenIf par (if !debug then
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309 box [p_exp' true env e,
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310 space,
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311 string "--",
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312 space,
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313 p_con' true env c,
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314 space,
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315 string "[",
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316 p_con env field,
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317 space,
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318 string " in ",
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319 space,
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320 p_con env rest,
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321 string "]"]
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322 else
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323 box [p_exp' true env e,
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324 space,
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325 string "--",
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326 space,
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327 p_con' true env c])
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328 | ECutMulti (e, c, {rest}) =>
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329 parenIf par (if !debug then
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330 box [p_exp' true env e,
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331 space,
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332 string "---",
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333 space,
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334 p_con' true env c,
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335 space,
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336 string "[",
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337 p_con env rest,
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338 string "]"]
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339 else
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340 box [p_exp' true env e,
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341 space,
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342 string "---",
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343 space,
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344 p_con' true env c])
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345 | EFold _ => string "fold"
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346
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347 | ECase (e, pes, {disc, result}) =>
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348 parenIf par (box [string "case",
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349 space,
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350 p_exp env e,
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351 space,
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352 if !debug then
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353 box [string "in",
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354 space,
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355 p_con env disc,
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356 space,
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357 string "return",
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358 space,
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359 p_con env result,
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360 space]
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361 else
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362 box [],
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363 string "of",
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364 space,
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365 p_list_sep (box [space, string "|", space])
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366 (fn (p, e) => box [p_pat env p,
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367 space,
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adamc@288
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368 string "=>",
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adamc@288
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369 space,
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adamc@288
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370 p_exp (E.patBinds env p) e]) pes])
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adamc@177
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371
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adamc@102
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372 | EWrite e => box [string "write(",
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adamc@102
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373 p_exp env e,
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adamc@102
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374 string ")"]
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adamc@102
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375
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adamc@110
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376 | EClosure (n, es) => box [string "CLOSURE(",
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adamc@110
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377 p_enamed env n,
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adamc@110
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378 p_list_sep (string "") (fn e => box [string ", ",
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adamc@110
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379 p_exp env e]) es,
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adamc@110
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380 string ")"]
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adamc@110
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381
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adamc@450
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382 | ELet (x, t, e1, e2) => box [string "let",
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adamc@450
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383 space,
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adamc@450
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384 string x,
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adamc@450
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385 space,
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adamc@450
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386 string ":",
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adamc@450
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387 p_con env t,
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adamc@450
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388 space,
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adamc@450
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389 string "=",
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adamc@450
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390 space,
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adamc@450
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391 p_exp env e1,
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adamc@450
|
392 space,
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adamc@450
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393 string "in",
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adamc@450
|
394 newline,
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adamc@450
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395 p_exp (E.pushERel env x t) e2]
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adamc@450
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396
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adamc@607
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397 | EServerCall (n, es, e) => box [string "Server(",
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adamc@607
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398 p_enamed env n,
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adamc@607
|
399 string ",",
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adamc@607
|
400 space,
|
adamc@607
|
401 p_list (p_exp env) es,
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adamc@607
|
402 string ")[",
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adamc@607
|
403 p_exp env e,
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adamc@607
|
404 string "]"]
|
adamc@607
|
405
|
adamc@16
|
406 and p_exp env = p_exp' false env
|
adamc@16
|
407
|
adamc@247
|
408 fun p_named x n =
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adamc@247
|
409 if !debug then
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adamc@247
|
410 box [string x,
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adamc@247
|
411 string "__",
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adamc@247
|
412 string (Int.toString n)]
|
adamc@247
|
413 else
|
adamc@247
|
414 string x
|
adamc@247
|
415
|
adamc@125
|
416 fun p_vali env (x, n, t, e, s) =
|
adamc@125
|
417 let
|
adamc@247
|
418 val xp = p_named x n
|
adamc@125
|
419 in
|
adamc@125
|
420 box [xp,
|
adamc@125
|
421 space,
|
adamc@125
|
422 string "as",
|
adamc@125
|
423 space,
|
adamc@125
|
424 string s,
|
adamc@125
|
425 space,
|
adamc@125
|
426 string ":",
|
adamc@125
|
427 space,
|
adamc@125
|
428 p_con env t,
|
adamc@125
|
429 space,
|
adamc@125
|
430 string "=",
|
adamc@125
|
431 space,
|
adamc@125
|
432 p_exp env e]
|
adamc@125
|
433 end
|
adamc@125
|
434
|
adamc@144
|
435 fun p_export_kind ck =
|
adamc@144
|
436 case ck of
|
adamc@144
|
437 Link => string "link"
|
adamc@144
|
438 | Action => string "action"
|
adamc@608
|
439 | Rpc => string "rpc"
|
adamc@144
|
440
|
adamc@192
|
441 fun p_datatype env (x, n, xs, cons) =
|
adamc@163
|
442 let
|
adamc@192
|
443 val k = (KType, ErrorMsg.dummySpan)
|
adamc@163
|
444 val env = E.pushCNamed env x n (KType, ErrorMsg.dummySpan) NONE
|
adamc@192
|
445 val env = foldl (fn (x, env) => E.pushCRel env x k) env xs
|
adamc@193
|
446
|
adamc@193
|
447 val xp = if !debug then
|
adamc@193
|
448 string (x ^ "__" ^ Int.toString n)
|
adamc@193
|
449 else
|
adamc@193
|
450 string x
|
adamc@163
|
451 in
|
adamc@163
|
452 box [string "datatype",
|
adamc@163
|
453 space,
|
adamc@193
|
454 xp,
|
adamc@192
|
455 p_list_sep (box []) (fn x => box [space, string x]) xs,
|
adamc@163
|
456 space,
|
adamc@163
|
457 string "=",
|
adamc@163
|
458 space,
|
adamc@163
|
459 p_list_sep (box [space, string "|", space])
|
adamc@163
|
460 (fn (x, n, NONE) => if !debug then (string (x ^ "__" ^ Int.toString n))
|
adamc@163
|
461 else string x
|
adamc@193
|
462 | (x, n, SOME t) => box [if !debug then (string (x ^ "__" ^ Int.toString n))
|
adamc@163
|
463 else string x, space, string "of", space, p_con env t])
|
adamc@163
|
464 cons]
|
adamc@163
|
465 end
|
adamc@163
|
466
|
adamc@125
|
467 fun p_decl env (dAll as (d, _) : decl) =
|
adamc@16
|
468 case d of
|
adamc@16
|
469 DCon (x, n, k, c) =>
|
adamc@16
|
470 let
|
adamc@16
|
471 val xp = if !debug then
|
adamc@16
|
472 box [string x,
|
adamc@16
|
473 string "__",
|
adamc@16
|
474 string (Int.toString n)]
|
adamc@16
|
475 else
|
adamc@16
|
476 string x
|
adamc@16
|
477 in
|
adamc@16
|
478 box [string "con",
|
adamc@16
|
479 space,
|
adamc@16
|
480 xp,
|
adamc@16
|
481 space,
|
adamc@16
|
482 string "::",
|
adamc@16
|
483 space,
|
adamc@16
|
484 p_kind k,
|
adamc@16
|
485 space,
|
adamc@16
|
486 string "=",
|
adamc@16
|
487 space,
|
adamc@16
|
488 p_con env c]
|
adamc@16
|
489 end
|
adamc@163
|
490 | DDatatype x => p_datatype env x
|
adamc@125
|
491 | DVal vi => box [string "val",
|
adamc@125
|
492 space,
|
adamc@125
|
493 p_vali env vi]
|
adamc@125
|
494 | DValRec vis =>
|
adamc@16
|
495 let
|
adamc@125
|
496 val env = E.declBinds env dAll
|
adamc@16
|
497 in
|
adamc@16
|
498 box [string "val",
|
adamc@16
|
499 space,
|
adamc@125
|
500 string "rec",
|
adamc@16
|
501 space,
|
adamc@125
|
502 p_list_sep (box [newline, string "and", space]) (p_vali env) vis]
|
adamc@16
|
503 end
|
adamc@144
|
504 | DExport (ek, n) => box [string "export",
|
adamc@144
|
505 space,
|
adamc@144
|
506 p_export_kind ek,
|
adamc@144
|
507 space,
|
adamc@144
|
508 p_enamed env n,
|
adamc@144
|
509 space,
|
adamc@144
|
510 string "as",
|
adamc@144
|
511 space,
|
adamc@482
|
512 (p_con env (#2 (E.lookupENamed env n))
|
adamc@482
|
513 handle E.UnboundNamed _ => string "UNBOUND")]
|
adamc@247
|
514 | DTable (x, n, c, s) => box [string "table",
|
adamc@247
|
515 space,
|
adamc@247
|
516 p_named x n,
|
adamc@247
|
517 space,
|
adamc@247
|
518 string "as",
|
adamc@247
|
519 space,
|
adamc@247
|
520 string s,
|
adamc@247
|
521 space,
|
adamc@247
|
522 string ":",
|
adamc@247
|
523 space,
|
adamc@247
|
524 p_con env c]
|
adamc@338
|
525 | DSequence (x, n, s) => box [string "sequence",
|
adamc@338
|
526 space,
|
adamc@338
|
527 p_named x n,
|
adamc@338
|
528 space,
|
adamc@338
|
529 string "as",
|
adamc@338
|
530 space,
|
adamc@338
|
531 string s]
|
adamc@271
|
532 | DDatabase s => box [string "database",
|
adamc@271
|
533 space,
|
adamc@271
|
534 string s]
|
adamc@461
|
535 | DCookie (x, n, c, s) => box [string "cookie",
|
adamc@461
|
536 space,
|
adamc@461
|
537 p_named x n,
|
adamc@461
|
538 space,
|
adamc@461
|
539 string "as",
|
adamc@461
|
540 space,
|
adamc@461
|
541 string s,
|
adamc@461
|
542 space,
|
adamc@461
|
543 string ":",
|
adamc@461
|
544 space,
|
adamc@461
|
545 p_con env c]
|
adamc@16
|
546
|
adamc@16
|
547 fun p_file env file =
|
adamc@16
|
548 let
|
adamc@31
|
549 val (pds, _) = ListUtil.foldlMap (fn (d, env) =>
|
adamc@31
|
550 (p_decl env d,
|
adamc@31
|
551 E.declBinds env d))
|
adamc@16
|
552 env file
|
adamc@16
|
553 in
|
adamc@16
|
554 p_list_sep newline (fn x => x) pds
|
adamc@16
|
555 end
|
adamc@16
|
556
|
adamc@16
|
557 end
|