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1 module dmd.DotTemplateInstanceExp;
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2
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3 import dmd.Expression;
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4 import dmd.UnaExp;
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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.TemplateInstance;
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9 import dmd.HdrGenState;
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2
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10 import dmd.TOK;
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11 import dmd.PREC;
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12 import dmd.Declaration;
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13 import dmd.Global;
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14 import dmd.TypePointer;
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15 import dmd.TypeStruct;
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16 import dmd.TY;
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17 import dmd.ScopeExp;
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18 import dmd.DotExp;
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19 import dmd.Type;
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20 import dmd.Identifier;
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21 import dmd.ErrorExp;
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22 import dmd.DotVarExp;
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23 import dmd.TemplateDeclaration;
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24 import dmd.Dsymbol;
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25
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26 import dmd.expression.Util;
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27
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28 /* Things like:
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29 * foo.bar!(args)
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30 */
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0
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31 class DotTemplateInstanceExp : UnaExp
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32 {
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33 TemplateInstance ti;
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34
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35 this(Loc loc, Expression e, TemplateInstance ti)
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2
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36 {
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37 super(loc, TOK.TOKdotti, DotTemplateInstanceExp.sizeof, e);
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38 //printf("DotTemplateInstanceExp()\n");
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39 this.ti = ti;
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40 }
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41
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42 Expression syntaxCopy()
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43 {
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2
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44 DotTemplateInstanceExp de = new DotTemplateInstanceExp(loc, e1.syntaxCopy(), cast(TemplateInstance)ti.syntaxCopy(null));
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45 return de;
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0
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46 }
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47
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48 Expression semantic(Scope sc)
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49 {
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2
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50 Dsymbol s;
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51 Dsymbol s2;
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52 TemplateDeclaration td;
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53 Expression e;
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54 Identifier id;
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55 Type t1;
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56 Expression eleft = null;
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57 Expression eright;
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58
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59 version (LOGSEMANTIC) {
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60 printf("DotTemplateInstanceExp.semantic('%s')\n", toChars());
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61 }
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62 //e1.print();
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63 //print();
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64 e1 = e1.semantic(sc);
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65 t1 = e1.type;
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66 if (t1)
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67 t1 = t1.toBasetype();
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68 //t1.print();
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69
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70 /* Extract the following from e1:
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71 * s: the symbol which ti should be a member of
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72 * eleft: if not null, it is the 'this' pointer for ti
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73 */
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74
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75 if (e1.op == TOKdotexp)
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76 {
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77 DotExp de = cast(DotExp)e1;
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78 eleft = de.e1;
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79 eright = de.e2;
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80 }
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81 else
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82 {
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83 eleft = null;
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84 eright = e1;
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85 }
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86 if (eright.op == TOKimport)
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87 {
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88 s = (cast(ScopeExp)eright).sds;
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89 }
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90 else if (e1.op == TOKtype)
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91 {
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92 s = t1.isClassHandle();
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93 if (!s)
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94 {
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95 if (t1.ty == Tstruct)
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96 s = (cast(TypeStruct)t1).sym;
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97 else
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98 goto L1;
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99 }
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100 }
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101 else if (t1 && (t1.ty == Tstruct || t1.ty == Tclass))
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102 {
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103 s = t1.toDsymbol(sc);
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104 eleft = e1;
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105 }
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106 else if (t1 && t1.ty == Tpointer)
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107 {
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108 t1 = (cast(TypePointer)t1).next.toBasetype();
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109 if (t1.ty != Tstruct)
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110 goto L1;
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111 s = t1.toDsymbol(sc);
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112 eleft = e1;
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113 }
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114 else
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115 {
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116 L1:
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117 error("template %s is not a member of %s", ti.toChars(), e1.toChars());
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118 goto Lerr;
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119 }
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120
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121 assert(s);
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122 id = ti.name;
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123 s2 = s.search(loc, id, 0);
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124 if (!s2)
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125 {
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126 if (!s.ident)
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127 error("template identifier %s is not a member of undefined %s", id.toChars(), s.kind());
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128 else
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129 error("template identifier %s is not a member of %s %s", id.toChars(), s.kind(), s.ident.toChars());
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130 goto Lerr;
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131 }
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132 s = s2;
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133 s.semantic(sc);
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134 s = s.toAlias();
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135 td = s.isTemplateDeclaration();
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136 if (!td)
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137 {
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138 error("%s is not a template", id.toChars());
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139 goto Lerr;
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140 }
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141 if (global.errors)
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142 goto Lerr;
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143
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144 ti.tempdecl = td;
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145
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146 if (eleft)
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147 {
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148 Declaration v;
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149
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150 ti.semantic(sc);
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151 s = ti.inst.toAlias();
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152 v = s.isDeclaration();
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153 if (v)
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154 {
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155 e = new DotVarExp(loc, eleft, v);
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156 e = e.semantic(sc);
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157 return e;
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158 }
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159 }
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160
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161 e = new ScopeExp(loc, ti);
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162 if (eleft)
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163 {
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164 e = new DotExp(loc, eleft, e);
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165 }
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166 e = e.semantic(sc);
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167 return e;
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168
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169 Lerr:
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170 return new ErrorExp();
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0
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171 }
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172
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173 void toCBuffer(OutBuffer buf, HdrGenState* hgs)
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174 {
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2
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175 expToCBuffer(buf, hgs, e1, PREC.PREC_primary);
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176 buf.writeByte('.');
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177 ti.toCBuffer(buf, hgs);
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0
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178 }
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179
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180 void dump(int indent)
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181 {
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182 assert(false);
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183 }
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184 }
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185
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