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annotate dmd/AssocArrayLiteralExp.d @ 84:be2ab491772e

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Expressions -> Vector!Expression
author Eldar Insafutdinov <e.insafutdinov@gmail.com>
date Mon, 30 Aug 2010 16:12:19 +0100
parents 2e2a5c3f943a
children 39648eb578f6
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1 module dmd.AssocArrayLiteralExp;
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2
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3 import dmd.Expression;
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4 import dmd.GlobalExpressions;
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5 import dmd.WANT;
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6 import dmd.expression.Equal;
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7 import dmd.backend.elem;
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8 import dmd.InterState;
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9 import dmd.MATCH;
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10 import dmd.Type;
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11 import dmd.TypeAArray;
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12 import dmd.OutBuffer;
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13 import dmd.Loc;
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14 import dmd.Scope;
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15 import dmd.InlineCostState;
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16 import dmd.IRState;
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17 import dmd.TY;
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18 import dmd.InlineDoState;
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19 import dmd.HdrGenState;
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20 import dmd.InlineScanState;
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21 import dmd.ArrayTypes;
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22 import dmd.TOK;
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23 import dmd.PREC;
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24 import dmd.expression.Util;
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25 import dmd.backend.Util;
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26 import dmd.backend.TYM;
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27 import dmd.backend.mTY;
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28 import dmd.backend.OPER;
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29 import dmd.backend.RTLSYM;
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30
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31 class AssocArrayLiteralExp : Expression
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32 {
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33 Expressions keys;
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34 Expressions values;
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35
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36 this(Loc loc, Expressions keys, Expressions values)
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37 {
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38 super(loc, TOK.TOKassocarrayliteral, this.sizeof);
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39 assert(keys.dim == values.dim);
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40 this.keys = keys;
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41 this.values = values;
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42 }
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43
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44 override Expression syntaxCopy()
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45 {
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46 return new AssocArrayLiteralExp(loc,
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47 arraySyntaxCopy(keys), arraySyntaxCopy(values));
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48 }
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49
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50 override Expression semantic(Scope sc)
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51 {
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52 Expression e;
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53 Type tkey = null;
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54 Type tvalue = null;
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55
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56 version (LOGSEMANTIC) {
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57 printf("AssocArrayLiteralExp.semantic('%s')\n", toChars());
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58 }
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59
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60 // Run semantic() on each element
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61 for (size_t i = 0; i < keys.dim; i++)
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62 { Expression key = cast(Expression)keys.data[i];
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63 Expression value = cast(Expression)values.data[i];
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64
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65 key = key.semantic(sc);
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66 value = value.semantic(sc);
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67
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68 keys.data[i] = key;
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69 values.data[i] = value;
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70 }
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71 expandTuples(keys);
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72 expandTuples(values);
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73 if (keys.dim != values.dim)
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74 {
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75 error("number of keys is %u, must match number of values %u", keys.dim, values.dim);
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76 keys.setDim(0);
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77 values.setDim(0);
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78 }
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79 for (size_t i = 0; i < keys.dim; i++)
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80 { Expression key = cast(Expression)keys.data[i];
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81 Expression value = cast(Expression)values.data[i];
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82
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83 if (!key.type)
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84 error("%s has no value", key.toChars());
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85 if (!value.type)
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86 error("%s has no value", value.toChars());
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87 key = resolveProperties(sc, key);
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88 value = resolveProperties(sc, value);
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89
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90 if (!tkey)
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91 tkey = key.type;
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92 else
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93 key = key.implicitCastTo(sc, tkey);
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94 keys.data[i] = key;
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95
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96 if (!tvalue)
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97 tvalue = value.type;
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98 else
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99 value = value.implicitCastTo(sc, tvalue);
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100 values.data[i] = value;
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101 }
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102
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103 if (!tkey)
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104 tkey = Type.tvoid;
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105 if (!tvalue)
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106 tvalue = Type.tvoid;
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107 type = new TypeAArray(tvalue, tkey);
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108 type = type.semantic(loc, sc);
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109 return this;
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110 }
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111
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112 override bool isBool(bool result)
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113 {
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114 size_t dim = keys.dim;
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115 return result ? (dim != 0) : (dim == 0);
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116 }
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117
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118 override elem* toElem(IRState* irs)
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119 {
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120 elem* e;
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121 size_t dim;
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122
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123 //printf("AssocArrayLiteralExp.toElem() %s\n", toChars());
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124 dim = keys.dim;
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125 e = el_long(TYint, dim);
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126 for (size_t i = 0; i < dim; i++)
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127 {
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128 Expression el = cast(Expression)keys.data[i];
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129
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130 for (int j = 0; j < 2; j++)
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131 {
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132 elem* ep = el.toElem(irs);
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133
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134 if (tybasic(ep.Ety) == TYstruct || tybasic(ep.Ety) == TYarray)
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135 {
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136 ep = el_una(OPstrpar, TYstruct, ep);
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137 ep.Enumbytes = cast(uint)el.type.size();
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138 }
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139 //printf("[%d] %s\n", i, el.toChars());
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140 //elem_print(ep);
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141 e = el_param(ep, e);
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142 el = cast(Expression)values.data[i];
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143 }
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144 }
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145
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146 Type t = type.toBasetype().mutableOf();
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147 assert(t.ty == Taarray);
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148 TypeAArray ta = cast(TypeAArray)t;
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149
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150 /* Unfortunately, the hash function for Aa (array of chars) is custom and
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151 * different from Axa and Aya, which get the generic hash function.
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152 * So, rewrite the type of the AArray so that if it's key type
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153 * is an array of const or invariant, make it an array of mutable.
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154 */
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155 Type tkey = ta.index.toBasetype();
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156 if (tkey.ty == Tarray)
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157 {
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158 tkey = tkey.nextOf().mutableOf().arrayOf();
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159 tkey = tkey.semantic(Loc(0), null);
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160 ta = new TypeAArray(ta.nextOf(), tkey);
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161 ta = cast(TypeAArray)ta.merge();
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162 }
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163
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164 e = el_param(e, ta.getTypeInfo(null).toElem(irs));
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165
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166 // call _d_assocarrayliteralT(ti, dim, ...)
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167 e = el_bin(OPcall,TYnptr,el_var(rtlsym[RTLSYM_ASSOCARRAYLITERALT]),e);
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diff changeset
168
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diff changeset
169 el_setLoc(e,loc);
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170 return e;
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171 }
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172
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173 override bool checkSideEffect(int flag)
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174 {
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diff changeset
175 bool f = false;
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diff changeset
176
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177 for (size_t i = 0; i < keys.dim; i++)
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178 { Expression key = cast(Expression)keys.data[i];
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179 Expression value = cast(Expression)values.data[i];
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diff changeset
180
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diff changeset
181 f |= key.checkSideEffect(2);
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182 f |= value.checkSideEffect(2);
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183 }
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184 if (flag == 0 && f == 0)
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diff changeset
185 Expression.checkSideEffect(0);
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186 return f;
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187 }
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188
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diff changeset
189 override void toCBuffer(OutBuffer buf, HdrGenState* hgs)
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190 {
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diff changeset
191 buf.writeByte('[');
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192 for (size_t i = 0; i < keys.dim; i++)
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193 { Expression key = cast(Expression)keys.data[i];
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194 Expression value = cast(Expression)values.data[i];
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195
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196 if (i)
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197 buf.writeByte(',');
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198 expToCBuffer(buf, hgs, key, PREC.PREC_assign);
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199 buf.writeByte(':');
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200 expToCBuffer(buf, hgs, value, PREC.PREC_assign);
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201 }
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202 buf.writeByte(']');
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203 }
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204
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205 override void toMangleBuffer(OutBuffer buf)
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206 {
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207 size_t dim = keys.dim;
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208 buf.printf("A%u", dim);
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209 for (size_t i = 0; i < dim; i++)
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210 { Expression key = cast(Expression)keys.data[i];
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211 Expression value = cast(Expression)values.data[i];
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212
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213 key.toMangleBuffer(buf);
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214 value.toMangleBuffer(buf);
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215 }
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216 }
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217
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218 override void scanForNestedRef(Scope sc)
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219 {
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220 assert(false);
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221 }
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222
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223 override Expression optimize(int result)
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224 {
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diff changeset
225 assert(keys.dim == values.dim);
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226 for (size_t i = 0; i < keys.dim; i++)
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227 {
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diff changeset
228 Expression e = cast(Expression)keys.data[i];
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diff changeset
229
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230 e = e.optimize(WANTvalue | (result & WANTinterpret));
84
be2ab491772e Expressions -> Vector!Expression
Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents: 72
diff changeset
231 keys.data[i] = e;
72
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232
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233 e = cast(Expression)values.data[i];
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234 e = e.optimize(WANTvalue | (result & WANTinterpret));
84
be2ab491772e Expressions -> Vector!Expression
Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents: 72
diff changeset
235 values.data[i] = e;
72
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236 }
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237 return this;
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238 }
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239
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diff changeset
240 override Expression interpret(InterState istate)
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241 {
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diff changeset
242 Expressions keysx = keys;
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diff changeset
243 Expressions valuesx = values;
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244
2e2a5c3f943a reduced warnings by adding override to the methods
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diff changeset
245 version (LOG) {
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diff changeset
246 printf("AssocArrayLiteralExp.interpret() %s\n", toChars());
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247 }
2e2a5c3f943a reduced warnings by adding override to the methods
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diff changeset
248 for (size_t i = 0; i < keys.dim; i++)
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249 {
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diff changeset
250 Expression ekey = cast(Expression)keys.data[i];
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diff changeset
251 Expression evalue = cast(Expression)values.data[i];
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diff changeset
252 Expression ex;
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diff changeset
253
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diff changeset
254 ex = ekey.interpret(istate);
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diff changeset
255 if (ex is EXP_CANT_INTERPRET)
2e2a5c3f943a reduced warnings by adding override to the methods
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diff changeset
256 goto Lerr;
2e2a5c3f943a reduced warnings by adding override to the methods
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diff changeset
257
2e2a5c3f943a reduced warnings by adding override to the methods
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diff changeset
258 /* If any changes, do Copy On Write
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parents: 68
diff changeset
259 */
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diff changeset
260 if (ex != ekey)
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Trass3r
parents: 68
diff changeset
261 {
2e2a5c3f943a reduced warnings by adding override to the methods
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parents: 68
diff changeset
262 if (keysx == keys)
2e2a5c3f943a reduced warnings by adding override to the methods
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diff changeset
263 keysx = cast(Expressions)keys.copy();
84
be2ab491772e Expressions -> Vector!Expression
Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents: 72
diff changeset
264 keysx.data[i] = ex;
72
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265 }
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diff changeset
266
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diff changeset
267 ex = evalue.interpret(istate);
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diff changeset
268 if (ex is EXP_CANT_INTERPRET)
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diff changeset
269 goto Lerr;
2e2a5c3f943a reduced warnings by adding override to the methods
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diff changeset
270
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diff changeset
271 /* If any changes, do Copy On Write
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diff changeset
272 */
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diff changeset
273 if (ex != evalue)
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diff changeset
274 {
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diff changeset
275 if (valuesx == values)
84
be2ab491772e Expressions -> Vector!Expression
Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents: 72
diff changeset
276 valuesx = values.copy();
be2ab491772e Expressions -> Vector!Expression
Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents: 72
diff changeset
277 valuesx.data[i] = ex;
72
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278 }
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diff changeset
279 }
2e2a5c3f943a reduced warnings by adding override to the methods
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diff changeset
280
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diff changeset
281 if (keysx != keys)
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diff changeset
282 expandTuples(keysx);
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diff changeset
283 if (valuesx != values)
2e2a5c3f943a reduced warnings by adding override to the methods
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diff changeset
284 expandTuples(valuesx);
2e2a5c3f943a reduced warnings by adding override to the methods
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parents: 68
diff changeset
285 if (keysx.dim != valuesx.dim)
2e2a5c3f943a reduced warnings by adding override to the methods
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diff changeset
286 goto Lerr;
2e2a5c3f943a reduced warnings by adding override to the methods
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diff changeset
287
2e2a5c3f943a reduced warnings by adding override to the methods
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diff changeset
288 /* Remove duplicate keys
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diff changeset
289 */
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diff changeset
290 for (size_t i = 1; i < keysx.dim; i++)
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parents: 68
diff changeset
291 {
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diff changeset
292 Expression ekey = cast(Expression)keysx.data[i - 1];
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parents: 68
diff changeset
293
2e2a5c3f943a reduced warnings by adding override to the methods
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diff changeset
294 for (size_t j = i; j < keysx.dim; j++)
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parents: 68
diff changeset
295 {
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diff changeset
296 Expression ekey2 = cast(Expression)keysx.data[j];
2e2a5c3f943a reduced warnings by adding override to the methods
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diff changeset
297 Expression ex = Equal(TOKequal, Type.tbool, ekey, ekey2);
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diff changeset
298 if (ex is EXP_CANT_INTERPRET)
2e2a5c3f943a reduced warnings by adding override to the methods
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diff changeset
299 goto Lerr;
2e2a5c3f943a reduced warnings by adding override to the methods
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diff changeset
300 if (ex.isBool(true)) // if a match
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diff changeset
301 {
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diff changeset
302 // Remove ekey
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diff changeset
303 if (keysx == keys)
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parents: 68
diff changeset
304 keysx = cast(Expressions)keys.copy();
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diff changeset
305 if (valuesx == values)
2e2a5c3f943a reduced warnings by adding override to the methods
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diff changeset
306 valuesx = cast(Expressions)values.copy();
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parents: 68
diff changeset
307 keysx.remove(i - 1);
2e2a5c3f943a reduced warnings by adding override to the methods
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parents: 68
diff changeset
308 valuesx.remove(i - 1);
2e2a5c3f943a reduced warnings by adding override to the methods
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parents: 68
diff changeset
309 i -= 1; // redo the i'th iteration
2e2a5c3f943a reduced warnings by adding override to the methods
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parents: 68
diff changeset
310 break;
2e2a5c3f943a reduced warnings by adding override to the methods
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parents: 68
diff changeset
311 }
2e2a5c3f943a reduced warnings by adding override to the methods
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parents: 68
diff changeset
312 }
2e2a5c3f943a reduced warnings by adding override to the methods
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parents: 68
diff changeset
313 }
2e2a5c3f943a reduced warnings by adding override to the methods
Trass3r
parents: 68
diff changeset
314
2e2a5c3f943a reduced warnings by adding override to the methods
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parents: 68
diff changeset
315 if (keysx != keys || valuesx != values)
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parents: 68
diff changeset
316 {
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parents: 68
diff changeset
317 AssocArrayLiteralExp ae;
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parents: 68
diff changeset
318 ae = new AssocArrayLiteralExp(loc, keysx, valuesx);
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parents: 68
diff changeset
319 ae.type = type;
2e2a5c3f943a reduced warnings by adding override to the methods
Trass3r
parents: 68
diff changeset
320 return ae;
2e2a5c3f943a reduced warnings by adding override to the methods
Trass3r
parents: 68
diff changeset
321 }
2e2a5c3f943a reduced warnings by adding override to the methods
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parents: 68
diff changeset
322 return this;
2e2a5c3f943a reduced warnings by adding override to the methods
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parents: 68
diff changeset
323
2e2a5c3f943a reduced warnings by adding override to the methods
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parents: 68
diff changeset
324 Lerr:
2e2a5c3f943a reduced warnings by adding override to the methods
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parents: 68
diff changeset
325 if (keysx != keys)
2e2a5c3f943a reduced warnings by adding override to the methods
Trass3r
parents: 68
diff changeset
326 delete keysx;
2e2a5c3f943a reduced warnings by adding override to the methods
Trass3r
parents: 68
diff changeset
327 if (valuesx != values)
2e2a5c3f943a reduced warnings by adding override to the methods
Trass3r
parents: 68
diff changeset
328 delete values;
2e2a5c3f943a reduced warnings by adding override to the methods
Trass3r
parents: 68
diff changeset
329 return EXP_CANT_INTERPRET;
2e2a5c3f943a reduced warnings by adding override to the methods
Trass3r
parents: 68
diff changeset
330 }
2e2a5c3f943a reduced warnings by adding override to the methods
Trass3r
parents: 68
diff changeset
331
2e2a5c3f943a reduced warnings by adding override to the methods
Trass3r
parents: 68
diff changeset
332 override MATCH implicitConvTo(Type t)
2e2a5c3f943a reduced warnings by adding override to the methods
Trass3r
parents: 68
diff changeset
333 {
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parents: 68
diff changeset
334 MATCH result = MATCHexact;
2e2a5c3f943a reduced warnings by adding override to the methods
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parents: 68
diff changeset
335
2e2a5c3f943a reduced warnings by adding override to the methods
Trass3r
parents: 68
diff changeset
336 Type typeb = type.toBasetype();
2e2a5c3f943a reduced warnings by adding override to the methods
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parents: 68
diff changeset
337 Type tb = t.toBasetype();
2e2a5c3f943a reduced warnings by adding override to the methods
Trass3r
parents: 68
diff changeset
338 if (tb.ty == Taarray && typeb.ty == Taarray)
2e2a5c3f943a reduced warnings by adding override to the methods
Trass3r
parents: 68
diff changeset
339 {
2e2a5c3f943a reduced warnings by adding override to the methods
Trass3r
parents: 68
diff changeset
340 for (size_t i = 0; i < keys.dim; i++)
2e2a5c3f943a reduced warnings by adding override to the methods
Trass3r
parents: 68
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341 {
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342 Expression e = cast(Expression)keys.data[i];
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343 MATCH m = cast(MATCH)e.implicitConvTo((cast(TypeAArray)tb).index);
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344 if (m < result)
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345 result = m; // remember worst match
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346 if (result == MATCHnomatch)
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347 break; // no need to check for worse
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348 e = cast(Expression)values.data[i];
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349 m = cast(MATCH)e.implicitConvTo(tb.nextOf());
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350 if (m < result)
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351 result = m; // remember worst match
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352 if (result == MATCHnomatch)
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353 break; // no need to check for worse
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354 }
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355 return result;
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356 }
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357 else
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358 return Expression.implicitConvTo(t);
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359 }
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360
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361 override Expression castTo(Scope sc, Type t)
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362 {
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363 if (type == t)
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364 return this;
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365 AssocArrayLiteralExp e = this;
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366 Type typeb = type.toBasetype();
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367 Type tb = t.toBasetype();
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368 if (tb.ty == Taarray && typeb.ty == Taarray && tb.nextOf().toBasetype().ty != Tvoid)
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369 {
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370 e = cast(AssocArrayLiteralExp)copy();
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371 e.keys = cast(Expressions)keys.copy();
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372 e.values = cast(Expressions)values.copy();
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373 assert(keys.dim == values.dim);
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374 for (size_t i = 0; i < keys.dim; i++)
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375 {
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376 Expression ex = cast(Expression)values.data[i];
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377 ex = ex.castTo(sc, tb.nextOf());
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378 e.values.data[i] = ex;
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379
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380 ex = cast(Expression)keys.data[i];
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381 ex = ex.castTo(sc, (cast(TypeAArray)tb).index);
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382 e.keys.data[i] = ex;
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383 }
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384 e.type = t;
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385 return e;
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386 }
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387 L1:
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388 return e.Expression.castTo(sc, t);
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389 }
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390
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391 override bool canThrow()
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392 {
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393 return true;
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394 }
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395
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396 override int inlineCost(InlineCostState* ics)
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397 {
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398 assert(false);
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399 }
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400
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401 override Expression doInline(InlineDoState ids)
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402 {
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403 assert(false);
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404 }
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405
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406 override Expression inlineScan(InlineScanState* iss)
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407 {
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408 assert(false);
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409 }
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410 }