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1 module dmd.TypeNext;
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2
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3 import dmd.Type;
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4 import dmd.TY;
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5 import dmd.OutBuffer;
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6 import dmd.Loc;
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7 import dmd.Scope;
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8 import dmd.MATCH;
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9 import dmd.MOD;
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10
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11 class TypeNext : Type
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12 {
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13 Type next;
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14
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15 this(TY ty, Type next)
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16 {
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17 super(ty);
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18 this.next = next;
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19 }
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20 version (DumbClone) {
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21 } else {
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22 final TypeNext cloneTo(TypeNext t)
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23 {
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24 super.cloneTo(t);
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25 return t;
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26 }
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27
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28 TypeNext clone()
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29 {
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30 assert(this.classinfo == TypeNext.classinfo);
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31 return cloneTo(new TypeNext(ty, next));
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32 }
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33 }
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72
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34 override void toDecoBuffer(OutBuffer buf, int flag)
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0
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35 {
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36 super.toDecoBuffer(buf, flag);
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37 assert(next !is this);
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38 //printf("this = %p, ty = %d, next = %p, ty = %d\n", this, this.ty, next, next.ty);
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39 next.toDecoBuffer(buf, (flag & 0x100) ? 0 : mod);
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40 }
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41
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72
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42 override void checkDeprecated(Loc loc, Scope sc)
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43 {
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44 Type.checkDeprecated(loc, sc);
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45 if (next) // next can be null if TypeFunction and auto return type
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46 next.checkDeprecated(loc, sc);
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47 }
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48
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72
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49 override Type reliesOnTident()
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50 {
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51 return next.reliesOnTident();
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52 }
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53
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72
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54 override Type nextOf()
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55 {
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56 return next;
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57 }
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58
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72
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59 override Type makeConst()
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60 {
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61 //printf("TypeNext::makeConst() %p, %s\n", this, toChars());
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62 if (cto)
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63 {
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64 assert(cto.mod == MOD.MODconst);
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65 return cto;
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66 }
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67
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68 TypeNext t = cast(TypeNext)super.makeConst();
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69 if (ty != TY.Tfunction && ty != TY.Tdelegate &&
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70 (next.deco || next.ty == TY.Tfunction) &&
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71 !next.isInvariant() && !next.isConst())
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72 {
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73 if (next.isShared())
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74 t.next = next.sharedConstOf();
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75 else
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76 t.next = next.constOf();
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77 }
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78 //printf("TypeNext::makeConst() returns %p, %s\n", t, t.toChars());
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79 return t;
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80 }
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81
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72
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82 override Type makeInvariant()
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0
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83 {
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84 //printf("TypeNext::makeInvariant() %s\n", toChars());
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85 if (ito)
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86 {
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87 assert(ito.isInvariant());
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88 return ito;
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89 }
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90 TypeNext t = cast(TypeNext)Type.makeInvariant();
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91 if (ty != TY.Tfunction && ty != TY.Tdelegate && (next.deco || next.ty == TY.Tfunction) && !next.isInvariant())
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92 {
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93 t.next = next.invariantOf();
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94 }
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95 return t;
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96 }
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97
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72
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98 override Type makeShared()
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99 {
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100 //printf("TypeNext::makeShared() %s\n", toChars());
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101 if (sto)
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102 {
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103 assert(sto.mod == MODshared);
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104 return sto;
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105 }
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106 TypeNext t = cast(TypeNext)Type.makeShared();
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107 if (ty != Tfunction && ty != Tdelegate &&
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108 (next.deco || next.ty == Tfunction) &&
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109 !next.isInvariant() && !next.isShared())
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110 {
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111 if (next.isConst())
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112 t.next = next.sharedConstOf();
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113 else
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114 t.next = next.sharedOf();
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115 }
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116
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117 //printf("TypeNext::makeShared() returns %p, %s\n", t, t.toChars());
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118 return t;
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119 }
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120
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72
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121 override Type makeSharedConst()
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122 {
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123 assert(false);
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124 }
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125
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72
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126 override MATCH constConv(Type to)
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127 {
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56
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128 MATCH m = Type.constConv(to);
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129
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130 if (m == MATCHconst && next.constConv((cast(TypeNext)to).next) == MATCHnomatch)
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131 m = MATCHnomatch;
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132 return m;
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133 }
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134
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135 void transitive()
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136 {
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137 /* Invoke transitivity of type attributes
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138 */
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139 next = next.addMod(mod);
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140 }
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72
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141 }
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