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1 module dmd.ConditionalDeclaration;
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2
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3 import dmd.AttribDeclaration;
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4 import dmd.Condition;
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5 import dmd.Array;
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6 import dmd.Dsymbol;
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7 import dmd.Scope;
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8 import dmd.ScopeDsymbol;
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9 import dmd.OutBuffer;
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10 import dmd.HdrGenState;
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11
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12 class ConditionalDeclaration : AttribDeclaration
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13 {
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14 Condition condition;
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15 Array elsedecl; // array of Dsymbol's for else block
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16
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17 this(Condition condition, Array decl, Array elsedecl)
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18 {
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19 super(decl);
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20 //printf("ConditionalDeclaration::ConditionalDeclaration()\n");
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21 this.condition = condition;
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22 this.elsedecl = elsedecl;
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23 }
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24
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25 Dsymbol syntaxCopy(Dsymbol s)
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26 {
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27 assert(false);
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28 }
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29
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30 bool oneMember(Dsymbol* ps)
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31 {
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32 assert(false);
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33 }
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34
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35 void emitComment(Scope sc)
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36 {
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37 assert(false);
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38 }
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39
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40 // Decide if 'then' or 'else' code should be included
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41
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42 Array include(Scope sc, ScopeDsymbol sd)
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43 {
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44 //printf("ConditionalDeclaration::include()\n");
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45 assert(condition);
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46 return condition.include(sc, sd) ? decl : elsedecl;
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47 }
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48
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49 void addComment(ubyte* comment)
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50 {
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51 /* Because addComment is called by the parser, if we called
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52 * include() it would define a version before it was used.
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53 * But it's no problem to drill down to both decl and elsedecl,
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54 * so that's the workaround.
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55 */
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56
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57 if (comment)
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58 {
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59 Array d = decl;
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60
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61 for (int j = 0; j < 2; j++)
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62 {
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63 if (d)
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64 {
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65 for (uint i = 0; i < d.dim; i++)
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66 {
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67 Dsymbol s = cast(Dsymbol)d.data[i];
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68 //printf("ConditionalDeclaration::addComment %s\n", s->toChars());
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69 s.addComment(comment);
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70 }
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71 }
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72 d = elsedecl;
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73 }
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74 }
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75 }
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76
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77 void toCBuffer(OutBuffer buf, HdrGenState* hgs)
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78 {
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79 assert(false);
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80 }
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81 } |
