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1 module dmd.NewAnonClassExp;
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2
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114
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3 import dmd.common;
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4 import dmd.Expression;
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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.ClassDeclaration;
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123
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9 import dmd.DeclarationExp;
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10 import dmd.NewExp;
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11 import dmd.CommaExp;
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12 import dmd.PREC;
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13 import dmd.HdrGenState;
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14 import dmd.ArrayTypes;
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15 import dmd.TOK;
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16 import dmd.expression.Util;
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17
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18 class NewAnonClassExp : Expression
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19 {
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20 /* thisexp.new(newargs) class baseclasses { } (arguments)
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21 */
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22 Expression thisexp; // if !NULL, 'this' for class being allocated
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23 Expressions newargs; // Array of Expression's to call new operator
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24 ClassDeclaration cd; // class being instantiated
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25 Expressions arguments; // Array of Expression's to call class constructor
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26
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27 this(Loc loc, Expression thisexp, Expressions newargs, ClassDeclaration cd, Expressions arguments)
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28 {
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29 super(loc, TOKnewanonclass, NewAnonClassExp.sizeof);
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30 this.thisexp = thisexp;
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31 this.newargs = newargs;
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32 this.cd = cd;
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33 this.arguments = arguments;
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34 }
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35
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36 override Expression syntaxCopy()
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37 {
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38 return new NewAnonClassExp(loc,
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39 thisexp ? thisexp.syntaxCopy() : null,
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40 arraySyntaxCopy(newargs),
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41 cast(ClassDeclaration)cd.syntaxCopy(null),
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42 arraySyntaxCopy(arguments));
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43 }
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44
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45 override Expression semantic(Scope sc)
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46 {
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47 version (LOGSEMANTIC) {
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48 printf("NewAnonClassExp.semantic() %s\n", toChars());
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49 //printf("thisexp = %p\n", thisexp);
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50 //printf("type: %s\n", type.toChars());
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51 }
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52
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53 Expression d = new DeclarationExp(loc, cd);
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54 d = d.semantic(sc);
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55
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56 Expression n = new NewExp(loc, thisexp, newargs, cd.type, arguments);
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57
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58 Expression c = new CommaExp(loc, d, n);
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59 return c.semantic(sc);
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60 }
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61
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62 override bool checkSideEffect(int flag)
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63 {
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64 return true;
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65 }
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66
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67 void toCBuffer(OutBuffer buf, HdrGenState* hgs)
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68 {
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69 if (thisexp)
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70 {
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71 expToCBuffer(buf, hgs, thisexp, PREC.PREC_primary);
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72 buf.writeByte('.');
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73 }
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74 buf.writestring("new");
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75 if (newargs && newargs.dim)
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76 {
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77 buf.writeByte('(');
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78 argsToCBuffer(buf, newargs, hgs);
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79 buf.writeByte(')');
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80 }
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81 buf.writestring(" class ");
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82 if (arguments && arguments.dim)
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83 {
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84 buf.writeByte('(');
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85 argsToCBuffer(buf, arguments, hgs);
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86 buf.writeByte(')');
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87 }
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88 //buf.writestring(" { }");
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89 if (cd)
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90 {
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91 cd.toCBuffer(buf, hgs);
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92 }
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93 }
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94
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95 override bool canThrow()
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96 {
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97 return true;
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98 }
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99 }
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100
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