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1 module dmd.MinAssignExp;
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2
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3 import dmd.BinExp;
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4 import dmd.Loc;
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5 import dmd.Expression;
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6 import dmd.Scope;
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7 import dmd.InterState;
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8 import dmd.OutBuffer;
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9 import dmd.ArrayTypes;
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10 import dmd.Identifier;
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11 import dmd.IRState;
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12 import dmd.TY;
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13 import dmd.TOK;
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14 import dmd.Id;
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15
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16 import dmd.backend.elem;
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17 import dmd.backend.Util;
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18 import dmd.backend.OPER;
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19
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20 class MinAssignExp : BinExp
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21 {
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22 this(Loc loc, Expression e1, Expression e2)
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23 {
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24 super(loc, TOK.TOKminass, MinAssignExp.sizeof, e1, e2);
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25 }
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26
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27 Expression semantic(Scope sc)
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28 {
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29 Expression e;
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30
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31 if (type)
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32 return this;
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33
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34 BinExp.semantic(sc);
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35 e2 = resolveProperties(sc, e2);
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36
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37 e = op_overload(sc);
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38 if (e)
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39 return e;
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40
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41 if (e1.op == TOKslice)
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42 { // T[] -= ...
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43 typeCombine(sc);
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44 type = e1.type;
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45 return arrayOp(sc);
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46 }
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47
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48 e1 = e1.modifiableLvalue(sc, e1);
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49 e1.checkScalar();
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50 e1.checkNoBool();
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51 if (e1.type.ty == Tpointer && e2.type.isintegral())
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52 e = scaleFactor(sc);
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53 else
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54 {
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55 e1 = e1.checkArithmetic();
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56 e2 = e2.checkArithmetic();
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57 type = e1.type;
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58 typeCombine(sc);
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59 if (type.isreal() || type.isimaginary())
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60 {
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61 assert(e2.type.isfloating());
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62 e2 = e2.castTo(sc, e1.type);
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63 }
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64 e = this;
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65 }
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66 return e;
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67 }
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68
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69 Expression interpret(InterState* istate)
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70 {
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71 assert(false);
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72 }
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73
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74 void buildArrayIdent(OutBuffer buf, Expressions arguments)
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75 {
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76 assert(false);
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77 }
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78
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79 Expression buildArrayLoop(Arguments fparams)
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80 {
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81 assert(false);
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82 }
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83
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84 Identifier opId() /* For operator overloading */
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85 {
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86 return Id.subass;
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87 }
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88
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89 elem* toElem(IRState* irs)
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90 {
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91 return toElemBin(irs,OPminass);
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92 }
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93 } |