Mercurial > projects > ddmd
annotate dmd/TypeTuple.d @ 187:b0d41ff5e0df
Added expandability scheme outlined in http://www.dsource.org/forums/viewtopic.php?t=5659&sid=6f2150ff5b0bffcd47512a6a7608d218
author | Abscissa |
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date | Tue, 07 Jun 2011 23:37:34 -0400 |
parents | e3afd1303184 |
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rev | line source |
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0 | 1 module dmd.TypeTuple; |
2 | |
114 | 3 import dmd.common; |
0 | 4 import dmd.Type; |
5 import dmd.ArrayTypes; | |
6 import dmd.MOD; | |
56 | 7 import dmd.TypeInfoTupleDeclaration; |
0 | 8 import dmd.TypeInfoDeclaration; |
9 import dmd.Expression; | |
10 import dmd.Loc; | |
11 import dmd.Identifier; | |
12 import dmd.OutBuffer; | |
13 import dmd.HdrGenState; | |
14 import dmd.Scope; | |
15 import dmd.TY; | |
16
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16 import dmd.Id; |
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17 import dmd.STC; |
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18 import dmd.Parameter; |
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19 import dmd.ErrorExp; |
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20 import dmd.IntegerExp; |
0 | 21 |
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22 import dmd.DDMDExtensions; |
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23 |
0 | 24 class TypeTuple : Type |
25 { | |
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26 mixin insertMemberExtension!(typeof(this)); |
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27 |
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28 Parameters arguments; // types making up the tuple |
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29 |
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30 this(Parameters arguments) |
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31 { |
178 | 32 register(); |
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33 super(TY.Ttuple); |
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34 //printf("TypeTuple(this = %p)\n", this); |
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35 this.arguments = arguments; |
135 | 36 //printf("TypeTuple() %p, %s\n", this, toChars()); |
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37 debug { |
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38 if (arguments) |
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39 { |
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40 foreach (arg; arguments) |
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41 { |
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42 assert(arg && arg.type); |
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43 } |
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44 } |
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45 } |
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46 } |
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47 |
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48 /**************** |
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49 * Form TypeTuple from the types of the expressions. |
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50 * Assume exps[] is already tuple expanded. |
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51 */ |
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52 this(Expressions exps) |
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53 { |
178 | 54 register(); |
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55 super(TY.Ttuple); |
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56 auto arguments = new Parameters; |
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57 if (exps) |
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58 { |
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59 arguments.setDim(exps.dim); |
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60 for (size_t i = 0; i < exps.dim; i++) |
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61 { auto e = exps[i]; |
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62 if (e.type.ty == Ttuple) |
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63 e.error("cannot form tuple of tuples"); |
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64 auto arg = new Parameter(STCundefined, e.type, null, null); |
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65 arguments[i] = arg; |
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66 } |
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67 } |
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68 this.arguments = arguments; |
135 | 69 //printf("TypeTuple() %p, %s\n", this, toChars()); |
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70 } |
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71 |
72 | 72 override Type syntaxCopy() |
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73 { |
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74 auto args = Parameter.arraySyntaxCopy(arguments); |
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75 auto t = new TypeTuple(args); |
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76 t.mod = mod; |
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77 return t; |
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78 } |
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79 |
72 | 80 override Type semantic(Loc loc, Scope sc) |
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81 { |
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82 //printf("TypeTuple::semantic(this = %p)\n", this); |
96 | 83 //printf("TypeTuple::semantic() %p, %s\n", this, toChars()); |
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84 if (!deco) |
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85 deco = merge().deco; |
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86 |
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87 /* Don't return merge(), because a tuple with one type has the |
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88 * same deco as that type. |
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89 */ |
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90 return this; |
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91 } |
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92 |
72 | 93 override bool equals(Object o) |
0 | 94 { |
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95 Type t; |
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96 |
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97 t = cast(Type)o; |
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98 //printf("TypeTuple::equals(%s, %s)\n", toChars(), t-cast>toChars()); |
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99 if (this == t) |
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100 { |
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101 return 1; |
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102 } |
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103 if (t.ty == Ttuple) |
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104 { auto tt = cast(TypeTuple)t; |
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105 |
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106 if (arguments.dim == tt.arguments.dim) |
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107 { |
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108 for (size_t i = 0; i < tt.arguments.dim; i++) |
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109 { auto arg1 = arguments[i]; |
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110 auto arg2 = tt.arguments[i]; |
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111 |
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112 if (!arg1.type.equals(arg2.type)) |
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113 return 0; |
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114 } |
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115 return 1; |
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116 } |
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117 } |
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118 return 0; |
0 | 119 } |
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120 |
72 | 121 override Type reliesOnTident() |
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122 { |
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123 if (arguments) |
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124 { |
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125 foreach (arg; arguments) |
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126 { |
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127 auto t = arg.type.reliesOnTident(); |
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128 if (t) |
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129 return t; |
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130 } |
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131 } |
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132 return null; |
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133 } |
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134 |
72 | 135 override void toCBuffer2(OutBuffer buf, HdrGenState* hgs, MOD mod) |
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136 { |
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137 Parameter.argsToCBuffer(buf, hgs, arguments, 0); |
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138 } |
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139 |
72 | 140 override void toDecoBuffer(OutBuffer buf, int flag) |
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141 { |
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142 //printf("TypeTuple::toDecoBuffer() this = %p, %s\n", this, toChars()); |
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143 Type.toDecoBuffer(buf, flag); |
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144 OutBuffer buf2 = new OutBuffer(); |
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145 Parameter.argsToDecoBuffer(buf2, arguments); |
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146 uint len = buf2.offset; |
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147 //buf.printf("%d%.*s", len, len, cast(char *)buf2.extractData()); |
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148 buf.printf("%d%s", len, buf2.extractString()); |
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149 } |
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150 |
72 | 151 override Expression getProperty(Loc loc, Identifier ident) |
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152 { |
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153 Expression e; |
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154 |
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155 version (LOGDOTEXP) { |
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156 printf("TypeTuple::getProperty(type = '%s', ident = '%s')\n", toChars(), ident.toChars()); |
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157 } |
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158 if (ident == Id.length) |
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159 { |
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160 e = new IntegerExp(loc, arguments.dim, Type.tsize_t); |
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161 } |
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162 else |
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163 { |
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164 error(loc, "no property '%s' for tuple '%s'", ident.toChars(), toChars()); |
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165 e = new ErrorExp(); |
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166 } |
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167 return e; |
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168 } |
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169 |
72 | 170 override TypeInfoDeclaration getTypeInfoDeclaration() |
0 | 171 { |
56 | 172 return new TypeInfoTupleDeclaration(this); |
0 | 173 } |
174 } |