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annotate dmd/TypeInfoStructDeclaration.d @ 126:1765f3ef917d

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ClassDeclarations, Arguments -> Vector
author Eldar Insafutdinov <e.insafutdinov@gmail.com>
date Fri, 03 Sep 2010 23:25:55 +0100
parents e28b18c23469
children 60bb0fe4563e
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1 module dmd.TypeInfoStructDeclaration;
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2
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3 import dmd.common;
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4 import dmd.Type;
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5 import dmd.TY;
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6 import dmd.MOD;
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7 import dmd.Loc;
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8 import dmd.Argument;
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9 import dmd.STC;
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10 import dmd.TypeStruct;
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11 import dmd.TypeFunction;
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12 import dmd.StructDeclaration;
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13 import dmd.FuncDeclaration;
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14 import dmd.Dsymbol;
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15 import dmd.ArrayTypes;
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16 import dmd.Scope;
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17 import dmd.LINK;
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18 import dmd.Id;
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19 import dmd.TypeInfoDeclaration;
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20 import dmd.backend.dt_t;
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21 import dmd.backend.TYM;
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22 import dmd.backend.Util;
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23 import dmd.expression.Util;
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24
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25 import std.string : toStringz;
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26
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27 class TypeInfoStructDeclaration : TypeInfoDeclaration
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28 {
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29 this(Type tinfo)
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30 {
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31 super(tinfo, 0);
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32 type = Type.typeinfostruct.type;
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33 }
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34
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35 override void toDt(dt_t** pdt)
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36 {
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37 //printf("TypeInfoStructDeclaration.toDt() '%s'\n", toChars());
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38
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39 uint offset = Type.typeinfostruct.structsize;
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40
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41 dtxoff(pdt, Type.typeinfostruct.toVtblSymbol(), 0, TYM.TYnptr); // vtbl for TypeInfo_Struct
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42 dtdword(pdt, 0); // monitor
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43
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44 assert(tinfo.ty == TY.Tstruct);
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45
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46 TypeStruct tc = cast(TypeStruct)tinfo;
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47 StructDeclaration sd = tc.sym;
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48
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49 /* Put out:
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50 * char[] name;
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51 * void[] init;
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52 * hash_t function(in void*) xtoHash;
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53 * bool function(in void*, in void*) xopEquals;
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54 * int function(in void*, in void*) xopCmp;
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55 * string function(const(void)*) xtoString;
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56 * uint m_flags;
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57 * xgetMembers;
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58 * xdtor;
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59 * xpostblit;
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60 *
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61 * name[]
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62 */
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63
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64 string name = sd.toPrettyChars();
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65 size_t namelen = name.length;
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66 dtdword(pdt, namelen);
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67
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68 //dtabytes(pdt, TYnptr, 0, namelen + 1, name);
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69 dtxoff(pdt, toSymbol(), offset, TYM.TYnptr);
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70 offset += namelen + 1;
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71
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72 // void[] init;
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73 dtdword(pdt, sd.structsize); // init.length
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74 if (sd.zeroInit)
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75 dtdword(pdt, 0); // null for 0 initialization
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76 else
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77 dtxoff(pdt, sd.toInitializer(), 0, TYM.TYnptr); // init.ptr
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78 FuncDeclaration fd;
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79 FuncDeclaration fdx;
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80 TypeFunction tf;
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81 Type ta;
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82 Dsymbol s;
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83
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84 static TypeFunction tftohash;
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85 static TypeFunction tftostring;
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86
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87 if (!tftohash)
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88 {
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89 scope Scope sc = new Scope();
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90
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91 tftohash = new TypeFunction(null, Type.thash_t, 0, LINK.LINKd);
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92 tftohash.mod = MOD.MODconst;
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93 tftohash = cast(TypeFunction)tftohash.semantic(Loc(0), sc);
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94
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95 tftostring = new TypeFunction(null, Type.tchar.invariantOf().arrayOf(), 0, LINK.LINKd);
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96 tftostring = cast(TypeFunction)tftostring.semantic(Loc(0), sc);
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97 }
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98
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99 TypeFunction tfeqptr;
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100 {
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101 // bool opEqual(const T*) const;
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102 scope Scope sc = new Scope();
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103 auto arguments = new Arguments;
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104 version (STRUCTTHISREF) {
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105 // arg type is ref const T
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106 auto arg = new Argument(STC.STCref, tc.constOf(), null, null);
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107 } else {
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108 // arg type is const T*
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109 auto arg = new Argument(STC.STCin, tc.pointerTo(), null, null);
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110 }
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111
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112 arguments.push(arg);
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113 tfeqptr = new TypeFunction(arguments, Type.tbool, 0, LINK.LINKd);
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114 tfeqptr.mod = MOD.MODconst;
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115 tfeqptr = cast(TypeFunction)tfeqptr.semantic(Loc(0), sc);
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116 }
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117
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118 TypeFunction tfcmpptr;
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119 {
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120 scope Scope sc = new Scope();
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121 auto arguments = new Arguments;
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122 version (STRUCTTHISREF) {
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123 // arg type is ref const T
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124 auto arg = new Argument(STC.STCref, tc.constOf(), null, null);
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125 } else {
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126 // arg type is const T*
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127 auto arg = new Argument(STC.STCin, tc.pointerTo(), null, null);
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128 }
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129
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130 arguments.push(arg);
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131 tfcmpptr = new TypeFunction(arguments, Type.tint32, 0, LINK.LINKd);
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132 tfcmpptr.mod = MOD.MODconst;
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133 tfcmpptr = cast(TypeFunction)tfcmpptr.semantic(Loc(0), sc);
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134 }
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135
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136 s = search_function(sd, Id.tohash);
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137 fdx = s ? s.isFuncDeclaration() : null;
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138 if (fdx)
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139 {
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140 fd = fdx.overloadExactMatch(tftohash);
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141 if (fd)
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142 dtxoff(pdt, fd.toSymbol(), 0, TYM.TYnptr);
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143 else
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144 //fdx.error("must be declared as extern (D) uint toHash()");
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145 dtdword(pdt, 0);
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146 }
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147 else
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148 dtdword(pdt, 0);
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149
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150 s = search_function(sd, Id.eq);
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151 fdx = s ? s.isFuncDeclaration() : null;
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152 if (fdx)
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153 {
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154 //printf("test1 %s, %s, %s\n", fdx.toChars(), fdx.type.toChars(), tfeqptr.toChars());
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155 fd = fdx.overloadExactMatch(tfeqptr);
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156 if (fd)
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157 dtxoff(pdt, fd.toSymbol(), 0, TYM.TYnptr);
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158 else
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159 {
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160 fd = fdx.overloadExactMatch(tfcmpptr);
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161 if (fd)
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162 fdx.error("must return bool, not int");
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163 //fdx.error("must be declared as extern (D) int %s(%s*)", fdx.toChars(), sd.toChars());
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164 dtdword(pdt, 0);
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165 }
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166 }
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167 else
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168 dtdword(pdt, 0);
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169
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170 s = search_function(sd, Id.cmp);
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171 fdx = s ? s.isFuncDeclaration() : null;
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172 if (fdx)
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173 {
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174 //printf("test1 %s, %s, %s\n", fdx.toChars(), fdx.type.toChars(), tfeqptr.toChars());
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175 fd = fdx.overloadExactMatch(tfcmpptr);
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176 if (fd)
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177 {
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178 dtxoff(pdt, fd.toSymbol(), 0, TYM.TYnptr);
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179 //printf("test2\n");
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180 }
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181 else
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182 //fdx.error("must be declared as extern (D) int %s(%s*)", fdx.toChars(), sd.toChars());
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183 dtdword(pdt, 0);
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184 }
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185 else
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186 dtdword(pdt, 0);
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187
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188 s = search_function(sd, Id.tostring);
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189 fdx = s ? s.isFuncDeclaration() : null;
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190 if (fdx)
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191 {
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192 fd = fdx.overloadExactMatch(tftostring);
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193 if (fd)
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194 dtxoff(pdt, fd.toSymbol(), 0, TYM.TYnptr);
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195 else
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196 //fdx.error("must be declared as extern (D) char[] toString()");
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197 dtdword(pdt, 0);
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198 }
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199 else
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200 dtdword(pdt, 0);
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201
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202 // uint m_flags;
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203 dtdword(pdt, tc.hasPointers());
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204
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205 version (DMDV2) {
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206 // xgetMembers
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207 FuncDeclaration sgetmembers = sd.findGetMembers();
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208 if (sgetmembers)
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209 dtxoff(pdt, sgetmembers.toSymbol(), 0, TYM.TYnptr);
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210 else
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211 dtdword(pdt, 0); // xgetMembers
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212
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213 // xdtor
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214 FuncDeclaration sdtor = sd.dtor;
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215 if (sdtor)
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216 dtxoff(pdt, sdtor.toSymbol(), 0, TYM.TYnptr);
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217 else
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218 dtdword(pdt, 0); // xdtor
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219
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220 // xpostblit
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221 FuncDeclaration spostblit = sd.postblit;
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222 if (spostblit)
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223 dtxoff(pdt, spostblit.toSymbol(), 0, TYM.TYnptr);
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224 else
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225 dtdword(pdt, 0); // xpostblit
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226 }
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227 // name[]
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228 dtnbytes(pdt, namelen + 1, toStringz(name));
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229 }
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230 }
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231