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annotate tools/AstPrinter.d @ 101:fea8d61a2451 new_gen

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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...?)
author Anders Johnsen <skabet@gmail.com>
date Wed, 07 May 2008 19:58:13 +0200
parents 48bb2287c035
children cd066f3b539a
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1 module tools.AstPrinter;
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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 ast.Module,
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6 ast.Decl,
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7 ast.Stmt,
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8 ast.Exp;
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9
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10 import basic.SourceManager;
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11
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12 class AstPrinter
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13 {
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14 const char[] tabType = " "; // 4 spaces
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15
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16 this(SourceManager sm)
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17 {
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18
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19 this.sm = sm;
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20 }
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21
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22 void print(Module m)
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23 {
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24 printBeginLine("module ");
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25 printEndLine(m.moduleName);
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26 printEndLine();
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27 foreach(decl ; m.decls)
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28 {
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29 printDecl(decl);
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30 }
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31 printEndLine();
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32 }
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33
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34 void printDecl(Decl decl)
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35 {
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36 switch(decl.declType)
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37 {
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38 case DeclType.FuncDecl:
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39 auto funcDecl = cast(FuncDecl)decl;
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40 printBeginLine();
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41 printIdentifier(funcDecl.returnType);
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42 space;
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43 printIdentifier(funcDecl.identifier);
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44 printFuncArgs(funcDecl);
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45 printOpenBrace();
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46 foreach(stmt ; funcDecl.statements)
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47 printStatement(stmt);
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48 printCloseBrace();
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49 break;
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50
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51 case DeclType.VarDecl:
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52 auto varDecl = cast(VarDecl)decl;
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53 printBeginLine();
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54 printExp(varDecl.varType);
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55 space;
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56 printExp(varDecl.identifier);
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57 if(varDecl.init)
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58 {
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59 print(" = ");
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60 printExp(varDecl.init);
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61 }
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62 printEndLine(";");
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63 break;
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64
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65 case DeclType.StructDecl:
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66 auto structDecl = cast(StructDecl)decl;
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67 printBeginLine("struct ");
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68 printIdentifier(structDecl.identifier);
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69 printEndLine;
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70 printOpenBrace;
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71 foreach( var ; structDecl.vars)
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72 printDecl(var);
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73 printCloseBrace;
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74 break;
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76 case DeclType.ImportDecl:
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77 auto i = cast(ImportDecl)decl;
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78 printBeginLine("import ");
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79 printEndLine(i.get);
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80 break;
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81 }
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82 printEndLine();
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83 }
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84
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85 void printStatement(Stmt stmt)
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86 {
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87 switch(stmt.stmtType)
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88 {
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89 case StmtType.Return:
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90 auto ret = cast(ReturnStmt)stmt;
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91 printBeginLine("return");
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92 if(ret.exp)
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93 {
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94 space;
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95 printExp(ret.exp);
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96 }
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97 printEndLine(";");
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98 break;
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99 case StmtType.Decl:
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100 auto declStmt = cast(DeclStmt)stmt;
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101 printDecl(declStmt.decl);
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102 break;
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103 case StmtType.Exp:
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104 auto expStmt = cast(ExpStmt)stmt;
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105 printBeginLine();
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106 printExp(expStmt.exp);
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107 printEndLine(";");
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108 break;
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109
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110 }
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111 }
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112
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113 void printExp(Exp exp)
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114 {
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115 switch(exp.expType)
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116 {
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117 case ExpType.Binary:
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118 auto binaryExp = cast(BinaryExp)exp;
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381975d76baf A LOT of bug fixing - also implemented implicit casts. If you do a --ast-dump-code on a target with some algebra of differant types, you should now see the type casts being made. Also, Tests are again back with only switches failing...
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119 print("(");
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120 printExp(binaryExp.left);
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121 print(" " ~ binaryExp.getOp[binaryExp.op] ~ " ");
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122 printExp(binaryExp.right);
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123 print(")");
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124 break;
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125 case ExpType.IntegerLit:
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126 auto integetLit = cast(IntegerLit)exp;
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127 print(integetLit.get);
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128 break;
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129 case ExpType.Negate:
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130 auto negateExp = cast(NegateExp)exp;
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131 print("-");
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132 printExp(negateExp.exp);
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133 break;
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134 case ExpType.Deref:
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135 auto derefExp = cast(DerefExp)exp;
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136 print("*");
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137 printExp(derefExp.exp);
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138 break;
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139 case ExpType.AssignExp:
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140 auto assignExp = cast(AssignExp)exp;
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69464d465284 Now supporting structs - both read and write. Still a few errors though, so watch out.
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141 printExp(assignExp.identifier);
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142 print(" = ");
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143 printExp(assignExp.exp);
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144 break;
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145 case ExpType.MemberReference:
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146 auto mrExp = cast(MemberReference)exp;
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147 printExp(mrExp.target);
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148 print(".");
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149 printIdentifier(mrExp.child);
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150 break;
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151 case ExpType.Identifier:
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152 auto iden = cast(Identifier)exp;
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153 printIdentifier(iden);
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154 break;
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155 case ExpType.PointerIdentifier:
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156 auto iden = cast(PointerIdentifier)exp;
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157 printExp(iden.pointerOf);
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158 print("*");
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159 break;
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160 case ExpType.CallExp:
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161 auto callExp = cast(CallExp)exp;
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162 printExp(callExp.exp);
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163 print("(");
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164 foreach(i, e; callExp.args)
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165 {
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166 printExp(e);
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167 if(i+1 < callExp.args.length)
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168 print(", ");
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169 }
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170 print(")");
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171 break;
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381975d76baf A LOT of bug fixing - also implemented implicit casts. If you do a --ast-dump-code on a target with some algebra of differant types, you should now see the type casts being made. Also, Tests are again back with only switches failing...
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172 case ExpType.CastExp:
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173 auto castExp = cast(CastExp)exp;
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174 print("cast");
381975d76baf A LOT of bug fixing - also implemented implicit casts. If you do a --ast-dump-code on a target with some algebra of differant types, you should now see the type casts being made. Also, Tests are again back with only switches failing...
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175 print("(");
381975d76baf A LOT of bug fixing - also implemented implicit casts. If you do a --ast-dump-code on a target with some algebra of differant types, you should now see the type casts being made. Also, Tests are again back with only switches failing...
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176 printExp(castExp.castType);
381975d76baf A LOT of bug fixing - also implemented implicit casts. If you do a --ast-dump-code on a target with some algebra of differant types, you should now see the type casts being made. Also, Tests are again back with only switches failing...
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177 print(")");
381975d76baf A LOT of bug fixing - also implemented implicit casts. If you do a --ast-dump-code on a target with some algebra of differant types, you should now see the type casts being made. Also, Tests are again back with only switches failing...
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178 printExp(castExp.exp);
381975d76baf A LOT of bug fixing - also implemented implicit casts. If you do a --ast-dump-code on a target with some algebra of differant types, you should now see the type casts being made. Also, Tests are again back with only switches failing...
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179 break;
1
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180 }
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181
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182 }
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183
60
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184 void printFuncArgs(FuncDecl decl)
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185 {
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186 print("(");
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187
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188 foreach(i, d; decl.funcArgs)
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189 {
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9f8131676242 Now Decl's have a DType type(), and should use varType and returnType to get the old type id
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190 printIdentifier(d.varType);
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191 if(i == 0 && decl.sret)
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192 print("*");
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193 space;
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194 printIdentifier(d.identifier);
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195 if(i+1 < decl.funcArgs.length)
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196 print(",");
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197 }
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198
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199 printEndLine(")");
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200 }
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201
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202 void printIdentifier(Identifier identifier)
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203 {
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204 print(identifier.get);
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205 }
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206
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207 void printOpenBrace()
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208 {
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209 printEndLine(tabIndex~"{");
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210 tabIndex ~= tabType;
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211 }
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212
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213 void printCloseBrace()
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214 {
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215 tabIndex = tabIndex[0 .. $-tabType.length];
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216 printEndLine(tabIndex~"}");
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217 }
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218
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219 void printBeginLine(char[] line = "")
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220 {
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221 Stdout(tabIndex~line);
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222 }
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223
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224 void printEndLine(char[] line = "")
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225 {
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226 Stdout(line).newline;
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227 }
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228
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229 void print(char[] line)
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230 {
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231 Stdout(line);
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232 }
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233
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234 void space()
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235 {
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236 print(" ");
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237 }
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238 private:
88
eb5b2c719a39 Major change to locations, tokens and expressions.
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diff changeset
239 SourceManager sm;
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240 char[] tabIndex;
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241 }