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annotate modules/array.tp @ 372:e857104bd183

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Added reverse method to arrays
author Michael Pavone <pavone@retrodev.com>
date Wed, 12 Aug 2015 19:16:41 -0700
parents 884cd5d54c0f
children 93c28eee141e
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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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
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75 llMessage: reverse withVars: {
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76 front <- int32_t
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77 back <- int32_t
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78 tmpo <- object ptr
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79 } andCode: {
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80 front <- 0
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81 back <- size
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82 while: { front < back } do: {
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83 tmpo <- data get: front
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84 data set: front (data get: back)
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85 data set: back tmpo
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86 front <- front + 1
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87 back <- back - 1
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88 }
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89 self
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90 }
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91
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92 llMessage: length withVars: {
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93 intret <- obj_int32 ptr
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94 } andCode: {
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95 intret <- make_object: (addr_of: obj_int32_meta) NULL 0
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96 intret num!: size
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97 intret
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98 }
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99
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100 fold:with <- :acc :fun {
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101 foreach: self :idx el {
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102 acc <- fun: acc el
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103 }
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104 acc
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105 }
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106
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107 foldr:with <- :acc :fun {
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108 idx <- length - 1
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109 while: {idx >= 0} do: {
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110 acc <- fun: acc (get: idx)
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111 idx <- idx - 1
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112 }
144
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113 acc
84
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114 }
144
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115
84
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116 map <- :fun {
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117 new <- #[]
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118 new resize: length
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119 foreach: self :idx el {
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120 new append: (fun: el)
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121 }
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122 new
84
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123 }
144
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124
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125 filter <- :fun {
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126 new <- #[]
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127 foreach: self :idx el {
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128 if: (fun: el) {
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129 new append: el
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130 }
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131 }
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132 new
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133 }
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134
84
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135 find:withDefault <- :pred :default{
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136 idx <- 0
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137 l <- length
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138 ret <- default
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139 while: {idx < l} do: {
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140 v <- get: idx
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141 if: (pred: v) {
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142 ret <- #{
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143 key <- idx
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144 value <- v
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145 }
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146 idx <- l
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147 } else: {
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148 idx <- idx + 1
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149 }
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150 }
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151 ret
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152 }
322
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153
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154 sort <- {
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155 n <- length
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156 tmp <- #[]
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157 tmp resize: n
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158 while: { (tmp length) < n} do: {
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159 tmp append: false
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160 }
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161 src <- self
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162 dst <- tmp
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163
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164 merge <- :lStart rStart rEnd {
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165 dstIdx <- lStart
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166 left <- lStart
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167 right <- rStart
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168
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169 while: { dstIdx < rEnd } do: {
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170 if: left < rStart && (right >= rEnd || (src get: left) <= (src get: right)) {
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171 dst set: dstIdx (src get: left)
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172 left <- left + 1
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173 } else: {
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174 dst set: dstIdx (src get: right)
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175 right <- right + 1
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176 }
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177 dstIdx <- dstIdx + 1
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178 }
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179 }
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180
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181 needsCopy? <- false
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182 subSize <- 1
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183 while: { subSize < n} do: {
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184 group <- subSize * 2
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185 i <- 0
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186 while: { i < n} do: {
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187 right <- i + subSize
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188 end <- i + group
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189 if: right > n {
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190 right <- n
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191 end <- n
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192 } else: {
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193 if: end > n {
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194 end <- n
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195 }
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196 }
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197 merge: i right end
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198 i <- i + group
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199 }
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200 tmp <- dst
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201 dst <- src
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202 src <- tmp
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203 needsCopy? <- not: needsCopy?
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204
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205 subSize <- subSize + subSize
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206 }
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207 if: needsCopy? {
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208 foreach: src :index val {
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209 self set: index val
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210 }
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211 }
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212 self
322
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213 }
184
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214
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215 join <- :sep {
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216 if: length > 0 {
186
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217 str <- string: (get: 0)
184
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218 idx <- 1
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219 l <- length
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220 while: { idx < l } do: {
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221 str <- str . sep . (get: idx)
191
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222 idx <- idx + 1
184
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223 }
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224 str
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225 } else: {
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226 ""
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227 }
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228 }
271
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229
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230 jsonEncode <- {
329
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231 parts <- map: :el { jsonEncoder encode: el }
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232 "[" . (parts join: ",") . "]"
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233 }
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234 }