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annotate modules/array.tp @ 300:ea94b1e43c97

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Add foreach to empty list
author Michael Pavone <pavone@retrodev.com>
date Fri, 25 Jul 2014 13:43:25 -0700
parents bb4723fec05e
children fb54a3af9c86
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
84
9811040704ac Add support for llMessage:withVars:andCode and llProperty:withType for specifying low level code without having to stick C inside the compiler. Redo array built-in type to use this feature.
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1 #{
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2 llProperty: size withType: uint32_t
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3 llProperty: storage withType: uint32_t
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4 llProperty: data withType: ((object ptr) ptr)
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5 llMessage: get withVars: {
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6 index <- obj_int32 ptr
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7 } andCode: :index {
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8 if: (index num) >= 0 && (index num) < size {
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9 (self data) get: (index num)
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10 } else: {
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11 false
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12 }
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13 }
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14
84
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15 llMessage: set withVars: {
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16 index <- obj_int32 ptr
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17 value <- object ptr
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18 } andCode: :index value {
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19 if: (index num) >= 0 && (index num) < size {
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20 data set: (index num) value
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21 }
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22 self
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23 }
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84
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25 llMessage: foreach withVars: {
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26 clos <- lambda ptr
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27 i <- uint32_t
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28 index <- obj_int32 ptr
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29 } andCode: :clos {
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30 i <- 0
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31 while: { i < size } do: {
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32 index <- make_object: (addr_of: obj_int32_meta) NULL 0
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33 index num!: i
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34 ccall: clos 2 index (data get: i)
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35 i <- i + 1
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36 }
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37 self
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38 }
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39
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40 llMessage: append withVars: {
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41 value <- object ptr
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42 tmp <- (object ptr) ptr
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43 } andCode: :value {
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44 if: storage = size {
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45 storage <- storage * 2
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46 tmp <- GC_REALLOC: data storage * (sizeof: (object ptr))
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47 if: (not: tmp) {
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48 fputs: "Failed to increase array size\n" stderr
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49 exit: 1
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50 }
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51 data <- tmp
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52 }
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53 data set: size value
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54 size <- size + 1
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55 self
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56 }
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57
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58 llMessage: resize withVars: {
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59 newsize <- obj_uint32 ptr
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60 tmp <- (object ptr) ptr
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61 } andCode: :newsize {
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62 self storage!: (newsize num)
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63 tmp <- GC_REALLOC: data storage * (sizeof: (object ptr))
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64 if: (not: tmp) {
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65 fputs: "Failed to adjust array size\n" stderr
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66 exit: 1
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67 }
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68 data <- tmp
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69 if: size > storage {
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70 size <- storage
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71 }
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72 self
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73 }
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74
84
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75 llMessage: length withVars: {
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76 intret <- obj_int32 ptr
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77 } andCode: {
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78 intret <- make_object: (addr_of: obj_int32_meta) NULL 0
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79 intret num!: size
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80 intret
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81 }
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82
84
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83 fold:with <- :acc :fun {
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84 foreach: self :idx el {
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85 acc <- fun: acc el
84
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86 }
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87 acc
84
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88 }
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89
84
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90 foldr:with <- :acc :fun {
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91 idx <- length - 1
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92 while: {idx >= 0} do: {
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93 acc <- fun: acc (get: idx)
84
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94 }
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95 acc
84
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96 }
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98 map <- :fun {
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99 new <- #[]
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100 foreach: self :idx el {
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101 new append: (fun: el)
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102 }
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103 new
84
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104 }
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105
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106 filter <- :fun {
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107 new <- #[]
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108 foreach: self :idx el {
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109 if: (fun: el) {
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110 new append: el
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111 }
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112 }
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113 new
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114 }
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115
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116 find:withDefault <- :pred :default{
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117 idx <- 0
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118 l <- length
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119 ret <- default
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120 while: {idx < l} do: {
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121 v <- get: idx
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122 if: (pred: v) {
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123 ret <- #{
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124 key <- idx
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125 value <- v
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126 }
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127 idx <- l
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128 }
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129 }
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130 ret
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131 }
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132
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133 join <- :sep {
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134 if: length > 0 {
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135 str <- string: (get: 0)
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136 idx <- 1
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137 l <- length
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138 while: { idx < l } do: {
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139 str <- str . sep . (get: idx)
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140 idx <- idx + 1
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141 }
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142 str
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143 } else: {
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144 ""
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145 }
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146 }
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147
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148 jsonEncode <- {
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149 parts <- map: :el { json encode: el }
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150 "[" . (parts join: ",") . "]"
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151 }
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152 }