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Add map method to linear dict
author Mike Pavone <pavone@retrodev.com>
date Wed, 28 Aug 2013 01:05:29 -0700
parents a868a2aec930
children 96fdc5b37ceb
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1 {
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2 linearWithEls <- :els {
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3 key:val <- :k v {
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4 #{
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5 key <- k
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6 val <- v
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7 }
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8 }
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9 find <- :tofind {
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10 idx <- 0
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11 while: {
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12 if: idx < (els length) {
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13 ((els get: idx) key: ) != tofind
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14 } else: {false}
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15 } do: {
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16 idx <- idx + 1
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17 }
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18 if: idx < (els length) {idx} else: {-1}
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19 }
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20 #{
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21 set <- :k v {
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22 idx <- find: k
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23 if: idx < 0 {
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24 els append: (key: k val: v)
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25 } else: {
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26 (els get: idx) val!: v
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27 }
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28 self
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29 }
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30
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31 get <- :k {
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32 get: k withDefault: false
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33 }
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34
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35 get:withDefault <- :k default {
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36 idx <- find: k
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37 if: idx < 0 {
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38 default
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39 } else: {
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40 (els get: idx) val
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41 }
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42 }
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43
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44 get:elseSet <- :k :else {
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45 idx <- find: k
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46 if: idx < 0 {
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47 v <- else:
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48 els append: (key: k val: v)
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49 v
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50 } else: {
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51 (els get: idx) val
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52 }
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53 }
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54
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55 contains? <- :k {
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56 (find: k) >= 0
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57 }
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58
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59 foreach <- :l {
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60 foreach: els :idx el {
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61 l: (el key) (el val)
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62 }
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63 }
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64
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65 map <- :fun {
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66 newels <- #[]
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67 foreach: els :idx el {
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68 newels append: (key: (el key) val: (fun: (el val)))
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69 }
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70 linearWithEls: newels
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71 }
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72
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73 length <- { els length }
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74 }
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75 }
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76 #{
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77 //requires only that keys support equality
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78 linear <- {
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79 linearWithEls: #[]
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80 }
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81 }
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82 }