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1 module dmd.ScopeExp;
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2
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3 import dmd.Expression;
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4 import dmd.backend.elem;
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5 import dmd.ScopeDsymbol;
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6 import dmd.OutBuffer;
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7 import dmd.TemplateInstance;
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8 import dmd.Loc;
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9 import dmd.TOK;
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10 import dmd.Scope;
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11 import dmd.IRState;
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12 import dmd.HdrGenState;
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13 import dmd.Global;
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14 import dmd.Dsymbol;
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15 import dmd.VarExp;
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16 import dmd.DotVarExp;
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17 import dmd.DsymbolExp;
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18 import dmd.Type;
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19
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20 class ScopeExp : Expression
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21 {
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22 ScopeDsymbol sds;
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23
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24 this(Loc loc, ScopeDsymbol pkg)
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25 {
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26 super(loc, TOK.TOKimport, ScopeExp.sizeof);
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27 //printf("ScopeExp.ScopeExp(pkg = '%s')\n", pkg.toChars());
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28 //static int count; if (++count == 38) *(char*)0=0;
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29 this.sds = pkg;
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30 }
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31
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32 override Expression syntaxCopy()
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33 {
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34 ScopeExp se = new ScopeExp(loc, cast(ScopeDsymbol)sds.syntaxCopy(null));
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35 return se;
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36 }
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37
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38 override Expression semantic(Scope sc)
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39 {
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40 TemplateInstance ti;
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41 ScopeDsymbol sds2;
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42
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43 version (LOGSEMANTIC) {
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44 printf("+ScopeExp.semantic('%s')\n", toChars());
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45 }
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46 Lagain:
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47 ti = sds.isTemplateInstance();
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48 if (ti && !global.errors)
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49 {
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50 Dsymbol s;
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51 if (!ti.semanticRun)
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52 ti.semantic(sc);
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53 s = ti.inst.toAlias();
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54 sds2 = s.isScopeDsymbol();
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55 if (!sds2)
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56 {
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57 Expression e;
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58
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59 //printf("s = %s, '%s'\n", s.kind(), s.toChars());
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60 if (ti.withsym)
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61 {
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62 // Same as wthis.s
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63 e = new VarExp(loc, ti.withsym.withstate.wthis);
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64 e = new DotVarExp(loc, e, s.isDeclaration());
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65 }
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66 else
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67 e = new DsymbolExp(loc, s);
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68
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69 e = e.semantic(sc);
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70 //printf("-1ScopeExp.semantic()\n");
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71 return e;
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72 }
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73 if (sds2 != sds)
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74 {
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75 sds = sds2;
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76 goto Lagain;
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77 }
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78 //printf("sds = %s, '%s'\n", sds.kind(), sds.toChars());
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79 }
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80 else
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81 {
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82 //printf("sds = %s, '%s'\n", sds.kind(), sds.toChars());
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83 //printf("\tparent = '%s'\n", sds.parent.toChars());
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84 sds.semantic(sc);
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85 }
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86 type = Type.tvoid;
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87 //printf("-2ScopeExp.semantic() %s\n", toChars());
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88 return this;
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89 }
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90
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91 override elem* toElem(IRState* irs)
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92 {
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93 assert(false);
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94 }
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95
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96 override void toCBuffer(OutBuffer buf, HdrGenState* hgs)
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97 {
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98 if (sds.isTemplateInstance())
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99 {
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100 sds.toCBuffer(buf, hgs);
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101 }
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102 else
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103 {
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104 buf.writestring(sds.kind());
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105 buf.writestring(" ");
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106 buf.writestring(sds.toChars());
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107 }
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108 }
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109 }
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110
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