Mercurial > repos > tabletprog
annotate modules/object.tp @ 266:75dc7161c1ca
Added object module which provides some basic reflection capabilities
author | Michael Pavone <pavone@retrodev.com> |
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date | Thu, 17 Jul 2014 23:57:41 -0700 |
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children | 123e9468d55e |
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75dc7161c1ca
Added object module which provides some basic reflection capabilities
Michael Pavone <pavone@retrodev.com>
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1 { |
75dc7161c1ca
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2 rt <- #{ |
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3 llMessage: numMessages withVars: { |
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4 intret <- obj_int32 ptr |
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5 } andCode: { |
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6 intret <- make_object: (addr_of: obj_int32_meta) NULL 0 |
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7 intret num!: (sizeof: methodNames) / (sizeof: (char ptr)) |
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8 intret |
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9 } |
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10 |
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11 llMessage: methodName withVars: { |
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12 methodId <- obj_int32 ptr |
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13 name <- string ptr |
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14 namelen <- int |
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15 } andCode: :methodId { |
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16 name <- make_object: (addr_of: string_meta) NULL 0 |
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17 namelen <- strlen: (methodNames get: (methodId num)) |
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18 name bytes!: namelen |
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19 name len!: namelen |
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20 name data!: (GC_MALLOC_ATOMIC: namelen + 1) |
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21 memcpy: (name data) (methodNames get: (methodId num)) namelen |
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22 name |
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23 } |
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24 |
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25 llMessage: understands? withVars: { |
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26 obj <- object ptr |
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27 methodId <- obj_int32 ptr |
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28 ret <- object ptr |
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29 } andCode: :obj methodId { |
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30 if: (object_understands: obj (methodId num)) { |
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31 ret <- module_true |
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32 } else: { |
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33 ret <- module_false |
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34 } |
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35 ret |
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36 } |
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37 |
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38 llMessage: addUnderstood withVars: { |
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39 obj <- object ptr |
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40 arr <- object ptr |
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41 methHash <- (uint32_t ptr) ptr |
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42 methodId <- obj_int32 ptr |
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43 slot <- int |
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44 i <- int |
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45 } andCode: :obj arr { |
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46 methHash <- (obj meta) methods |
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47 slot <- 0 |
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48 while: {slot < 16} do: { |
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49 if: (methHash get: slot) { |
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50 i <- 0 |
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51 while: { ((methHash get: slot) get: i) != 0xFFFFFFFF } do: { |
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52 methodId <- make_object: (addr_of: obj_int32_meta) NULL 0 |
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53 methodId num!: ((methHash get: slot) get: i) |
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54 mcall: append 2 arr methodId |
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55 |
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56 i <- i + 1 |
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57 } |
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58 } |
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59 |
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60 slot <- slot + 1 |
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61 } |
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62 arr |
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63 } |
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64 } |
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65 getMethodDict <- { |
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66 methodDict <- dict hash |
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67 i <- 0 |
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68 n <- rt numMessages |
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69 while: { i < n } do: { |
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70 name <- rt methodName: i |
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71 methodDict set: name i |
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72 i <- i + 1 |
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73 } |
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74 getMethodDict <- { |
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75 methodDict |
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76 } |
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77 methodDict |
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78 } |
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79 #{ |
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80 does:understand? <- :obj :message { |
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81 d <- getMethodDict: |
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82 d ifget: message :messageId{ |
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83 rt understands?: obj messageId |
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84 } else: { false } |
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85 } |
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86 |
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87 understoodBy <- :obj { |
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88 ids <- rt addUnderstood: obj #[] |
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89 ids map: :id { |
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90 rt methodName: id |
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91 } |
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92 } |
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93 } |
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94 } |