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annotate sema/Scope.d @ 129:ed815b31479b

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Added a Symbol
author Anders Halager <halager@gmail.com>
date Sat, 21 Jun 2008 20:41:18 +0200
parents 189c049cbfcc
children a14ac9e5c858
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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771ac63898e2 A few better parser errors plus renaming most of the sema classes to match that they do now. Some have changes a lot.
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1 module sema.Scope;
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2
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3 import tango.io.Stdout;
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4
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5 import lexer.Token,
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6 ast.Module,
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7 ast.Decl,
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8 ast.Exp;
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9
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10 public
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11 import sema.DType,
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12 sema.Symbol;
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13
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14 class Scope
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15 {
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16 this() {}
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17 this(Scope enclosing)
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18 {
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19 this.enclosing = enclosing;
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20 this.func = enclosing.func;
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21 this.inModule = enclosing.inModule;
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22 this.mHandle = enclosing.mHandle;
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23 }
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24
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25 Scope enclosing;
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26 ModuleHandler mHandle;
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27 Module inModule;
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28 Scope[] imported;
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30 ImportDecl[] imports;
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31
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32 void put(Identifier id, Decl d)
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33 {
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34 symbols[id] = d;
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35 }
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36
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37 Decl find(Identifier id)
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38 {
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39 if(id is null)
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40 return null;
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41 else if (auto sym = id in symbols)
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42 return *sym;
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43 else if (enclosing !is null)
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44 {
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45 auto res = enclosing.find(id);
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46 if (res is null)
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47 return mHandle.find(getImports, id);
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48 return res;
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49 }
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50 return null;
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51 }
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52
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53 ImportDecl[] getImports()
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54 {
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55 if(enclosing)
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56 return enclosing.getImports ~ imports;
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57 return imports;
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58 }
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59
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60 DType findType(Identifier id)
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61 {
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62 if (auto type = id.get in types)
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63 return *type;
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64 if (enclosing !is null)
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65 {
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66 auto type = enclosing.findType(id);
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67 if(type is null)
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68 return mHandle.findType(getImports, id);
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69 return type;
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70 }
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71 return null;
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72 }
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73
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74 /*
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75 char[][] names()
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76 {
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77 char[][] res;
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78 if (parentFunction() !is null)
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79 res ~= "pf: " ~ parentFunction().identifier.get;
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80 if (enclosing)
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81 res = enclosing.names;
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82 foreach (id, sym; symbols)
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83 res ~= sym.name ~ " : " ~ (sym.type is null? "?" : sym.type.name);
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84 return res;
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85 }
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86 */
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87
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88 FuncDecl parentFunction()
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89 {
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90 if (func !is null)
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91 return func;
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92 else if (enclosing !is null)
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93 return enclosing.parentFunction();
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94 else
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95 return null;
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96 }
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97
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98 int stmtIndex()
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99 {
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100 if (currentStmtIndex != -1)
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101 return currentStmtIndex;
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102 else if (enclosing !is null)
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103 return enclosing.stmtIndex();
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104 else
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105 return -1;
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106 }
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107
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108 int opEquals(Object o)
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109 {
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110 return this is o;
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111 }
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112
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113 char[] toString()
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114 {
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115 if (func)
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116 return Stdout.layout.convert("{}: {}", func.identifier.get, symbols.length);
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117 return Stdout.layout.convert("root: {}", symbols.length);
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118 }
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119
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120 FuncDecl parentFunction(FuncDecl f)
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121 {
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122 func = f;
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123 return f;
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124 }
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125 DType[char[]] types;
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126 int currentStmtIndex = -1;
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127 private:
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128 Decl[Identifier] symbols;
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129 FuncDecl func;
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130 }
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131
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132 class ModuleHandler
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133 {
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134 void add(Module m)
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135 {
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Anders Johnsen <skabet@gmail.com>
parents: 99
diff changeset
136 modules[m.moduleName] = m;
fea8d61a2451 First step(the other first was a bad one) toward imports. You can now compile two files that use eachother - given that they both are in the command line. Right now it's only root sturcts and methods you can use(i guess...?)
Anders Johnsen <skabet@gmail.com>
parents: 99
diff changeset
137 }
fea8d61a2451 First step(the other first was a bad one) toward imports. You can now compile two files that use eachother - given that they both are in the command line. Right now it's only root sturcts and methods you can use(i guess...?)
Anders Johnsen <skabet@gmail.com>
parents: 99
diff changeset
138 void add(Module m, char[] file)
fea8d61a2451 First step(the other first was a bad one) toward imports. You can now compile two files that use eachother - given that they both are in the command line. Right now it's only root sturcts and methods you can use(i guess...?)
Anders Johnsen <skabet@gmail.com>
parents: 99
diff changeset
139 {
fea8d61a2451 First step(the other first was a bad one) toward imports. You can now compile two files that use eachother - given that they both are in the command line. Right now it's only root sturcts and methods you can use(i guess...?)
Anders Johnsen <skabet@gmail.com>
parents: 99
diff changeset
140 fileToModule[file] = m.moduleName;
fea8d61a2451 First step(the other first was a bad one) toward imports. You can now compile two files that use eachother - given that they both are in the command line. Right now it's only root sturcts and methods you can use(i guess...?)
Anders Johnsen <skabet@gmail.com>
parents: 99
diff changeset
141 add(m);
fea8d61a2451 First step(the other first was a bad one) toward imports. You can now compile two files that use eachother - given that they both are in the command line. Right now it's only root sturcts and methods you can use(i guess...?)
Anders Johnsen <skabet@gmail.com>
parents: 99
diff changeset
142 }
fea8d61a2451 First step(the other first was a bad one) toward imports. You can now compile two files that use eachother - given that they both are in the command line. Right now it's only root sturcts and methods you can use(i guess...?)
Anders Johnsen <skabet@gmail.com>
parents: 99
diff changeset
143
fea8d61a2451 First step(the other first was a bad one) toward imports. You can now compile two files that use eachother - given that they both are in the command line. Right now it's only root sturcts and methods you can use(i guess...?)
Anders Johnsen <skabet@gmail.com>
parents: 99
diff changeset
144 DType findType(ImportDecl[] imports, Identifier type)
fea8d61a2451 First step(the other first was a bad one) toward imports. You can now compile two files that use eachother - given that they both are in the command line. Right now it's only root sturcts and methods you can use(i guess...?)
Anders Johnsen <skabet@gmail.com>
parents: 99
diff changeset
145 {
fea8d61a2451 First step(the other first was a bad one) toward imports. You can now compile two files that use eachother - given that they both are in the command line. Right now it's only root sturcts and methods you can use(i guess...?)
Anders Johnsen <skabet@gmail.com>
parents: 99
diff changeset
146 foreach(i ; imports)
fea8d61a2451 First step(the other first was a bad one) toward imports. You can now compile two files that use eachother - given that they both are in the command line. Right now it's only root sturcts and methods you can use(i guess...?)
Anders Johnsen <skabet@gmail.com>
parents: 99
diff changeset
147 if(i.get in modules)
fea8d61a2451 First step(the other first was a bad one) toward imports. You can now compile two files that use eachother - given that they both are in the command line. Right now it's only root sturcts and methods you can use(i guess...?)
Anders Johnsen <skabet@gmail.com>
parents: 99
diff changeset
148 {
fea8d61a2451 First step(the other first was a bad one) toward imports. You can now compile two files that use eachother - given that they both are in the command line. Right now it's only root sturcts and methods you can use(i guess...?)
Anders Johnsen <skabet@gmail.com>
parents: 99
diff changeset
149 auto t = modules[i.get].env.findType(type);
fea8d61a2451 First step(the other first was a bad one) toward imports. You can now compile two files that use eachother - given that they both are in the command line. Right now it's only root sturcts and methods you can use(i guess...?)
Anders Johnsen <skabet@gmail.com>
parents: 99
diff changeset
150 if(t !is null)
fea8d61a2451 First step(the other first was a bad one) toward imports. You can now compile two files that use eachother - given that they both are in the command line. Right now it's only root sturcts and methods you can use(i guess...?)
Anders Johnsen <skabet@gmail.com>
parents: 99
diff changeset
151 return t;
fea8d61a2451 First step(the other first was a bad one) toward imports. You can now compile two files that use eachother - given that they both are in the command line. Right now it's only root sturcts and methods you can use(i guess...?)
Anders Johnsen <skabet@gmail.com>
parents: 99
diff changeset
152 }
fea8d61a2451 First step(the other first was a bad one) toward imports. You can now compile two files that use eachother - given that they both are in the command line. Right now it's only root sturcts and methods you can use(i guess...?)
Anders Johnsen <skabet@gmail.com>
parents: 99
diff changeset
153 return null;
fea8d61a2451 First step(the other first was a bad one) toward imports. You can now compile two files that use eachother - given that they both are in the command line. Right now it's only root sturcts and methods you can use(i guess...?)
Anders Johnsen <skabet@gmail.com>
parents: 99
diff changeset
154 }
fea8d61a2451 First step(the other first was a bad one) toward imports. You can now compile two files that use eachother - given that they both are in the command line. Right now it's only root sturcts and methods you can use(i guess...?)
Anders Johnsen <skabet@gmail.com>
parents: 99
diff changeset
155
129
ed815b31479b Added a Symbol
Anders Halager <halager@gmail.com>
parents: 107
diff changeset
156 Decl find(ImportDecl[] imports, Identifier id)
101
fea8d61a2451 First step(the other first was a bad one) toward imports. You can now compile two files that use eachother - given that they both are in the command line. Right now it's only root sturcts and methods you can use(i guess...?)
Anders Johnsen <skabet@gmail.com>
parents: 99
diff changeset
157 {
fea8d61a2451 First step(the other first was a bad one) toward imports. You can now compile two files that use eachother - given that they both are in the command line. Right now it's only root sturcts and methods you can use(i guess...?)
Anders Johnsen <skabet@gmail.com>
parents: 99
diff changeset
158 foreach(i ; imports)
fea8d61a2451 First step(the other first was a bad one) toward imports. You can now compile two files that use eachother - given that they both are in the command line. Right now it's only root sturcts and methods you can use(i guess...?)
Anders Johnsen <skabet@gmail.com>
parents: 99
diff changeset
159 if(i.get in modules)
fea8d61a2451 First step(the other first was a bad one) toward imports. You can now compile two files that use eachother - given that they both are in the command line. Right now it's only root sturcts and methods you can use(i guess...?)
Anders Johnsen <skabet@gmail.com>
parents: 99
diff changeset
160 {
fea8d61a2451 First step(the other first was a bad one) toward imports. You can now compile two files that use eachother - given that they both are in the command line. Right now it's only root sturcts and methods you can use(i guess...?)
Anders Johnsen <skabet@gmail.com>
parents: 99
diff changeset
161 auto t = modules[i.get].env.find(id);
fea8d61a2451 First step(the other first was a bad one) toward imports. You can now compile two files that use eachother - given that they both are in the command line. Right now it's only root sturcts and methods you can use(i guess...?)
Anders Johnsen <skabet@gmail.com>
parents: 99
diff changeset
162 if(t !is null)
fea8d61a2451 First step(the other first was a bad one) toward imports. You can now compile two files that use eachother - given that they both are in the command line. Right now it's only root sturcts and methods you can use(i guess...?)
Anders Johnsen <skabet@gmail.com>
parents: 99
diff changeset
163 return t;
fea8d61a2451 First step(the other first was a bad one) toward imports. You can now compile two files that use eachother - given that they both are in the command line. Right now it's only root sturcts and methods you can use(i guess...?)
Anders Johnsen <skabet@gmail.com>
parents: 99
diff changeset
164 }
fea8d61a2451 First step(the other first was a bad one) toward imports. You can now compile two files that use eachother - given that they both are in the command line. Right now it's only root sturcts and methods you can use(i guess...?)
Anders Johnsen <skabet@gmail.com>
parents: 99
diff changeset
165 return null;
fea8d61a2451 First step(the other first was a bad one) toward imports. You can now compile two files that use eachother - given that they both are in the command line. Right now it's only root sturcts and methods you can use(i guess...?)
Anders Johnsen <skabet@gmail.com>
parents: 99
diff changeset
166 }
fea8d61a2451 First step(the other first was a bad one) toward imports. You can now compile two files that use eachother - given that they both are in the command line. Right now it's only root sturcts and methods you can use(i guess...?)
Anders Johnsen <skabet@gmail.com>
parents: 99
diff changeset
167
fea8d61a2451 First step(the other first was a bad one) toward imports. You can now compile two files that use eachother - given that they both are in the command line. Right now it's only root sturcts and methods you can use(i guess...?)
Anders Johnsen <skabet@gmail.com>
parents: 99
diff changeset
168 char[][char[]] fileToModule;
fea8d61a2451 First step(the other first was a bad one) toward imports. You can now compile two files that use eachother - given that they both are in the command line. Right now it's only root sturcts and methods you can use(i guess...?)
Anders Johnsen <skabet@gmail.com>
parents: 99
diff changeset
169 Module[char[]] modules;
fea8d61a2451 First step(the other first was a bad one) toward imports. You can now compile two files that use eachother - given that they both are in the command line. Right now it's only root sturcts and methods you can use(i guess...?)
Anders Johnsen <skabet@gmail.com>
parents: 99
diff changeset
170 }
fea8d61a2451 First step(the other first was a bad one) toward imports. You can now compile two files that use eachother - given that they both are in the command line. Right now it's only root sturcts and methods you can use(i guess...?)
Anders Johnsen <skabet@gmail.com>
parents: 99
diff changeset
171