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72
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1 module dmd.TypeInfoTypedefDeclaration;
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2
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114
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3 import dmd.common;
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72
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4 import dmd.Type;
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0
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5 import dmd.TypeInfoDeclaration;
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6 import dmd.TypedefDeclaration;
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7 import dmd.TypeTypedef;
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8 import dmd.TY;
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72
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9 import dmd.Loc;
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0
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10 import dmd.backend.dt_t;
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11 import dmd.backend.TYM;
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72
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12 import dmd.backend.Util;
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0
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13
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14 import std.string;
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72
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15
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0
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16 class TypeInfoTypedefDeclaration : TypeInfoDeclaration
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17 {
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18 this(Type tinfo)
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19 {
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20 super(tinfo, 0);
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73
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21 type = Type.typeinfotypedef.type;
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0
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22 }
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23
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72
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24 override void toDt(dt_t** pdt)
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0
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25 {
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26 //printf("TypeInfoTypedefDeclaration.toDt() %s\n", toChars());
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27
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28 dtxoff(pdt, Type.typeinfotypedef.toVtblSymbol(), 0, TYnptr); // vtbl for TypeInfo_Typedef
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29 dtdword(pdt, 0); // monitor
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30
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31 assert(tinfo.ty == Ttypedef);
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32
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33 TypeTypedef tc = cast(TypeTypedef)tinfo;
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34 TypedefDeclaration sd = tc.sym;
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35 //printf("basetype = %s\n", sd.basetype.toChars());
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36
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37 /* Put out:
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38 * TypeInfo base;
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39 * char[] name;
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40 * void[] m_init;
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41 */
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42
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43 sd.basetype = sd.basetype.merge();
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44 sd.basetype.getTypeInfo(null); // generate vtinfo
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45 assert(sd.basetype.vtinfo);
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46 dtxoff(pdt, sd.basetype.vtinfo.toSymbol(), 0, TYnptr); // TypeInfo for basetype
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47
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48 string name = sd.toPrettyChars();
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49 size_t namelen = name.length;
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50 dtdword(pdt, namelen);
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51 dtabytes(pdt, TYnptr, 0, namelen + 1, toStringz(name));
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52
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53 // void[] init;
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54 if (tinfo.isZeroInit(Loc(0)) || !sd.init)
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55 {
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56 // 0 initializer, or the same as the base type
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57 dtdword(pdt, 0); // init.length
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58 dtdword(pdt, 0); // init.ptr
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59 }
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60 else
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61 {
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62 dtdword(pdt, cast(int)sd.type.size()); // init.length
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63 dtxoff(pdt, sd.toInitializer(), 0, TYnptr); // init.ptr
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64 }
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65 }
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66 }
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67
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