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72
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1 module dmd.NegExp;
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2
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3 import dmd.Expression;
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4 import dmd.Identifier;
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5 import dmd.backend.elem;
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6 import dmd.UnaExp;
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7 import dmd.InterState;
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8 import dmd.OutBuffer;
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9 import dmd.Loc;
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10 import dmd.Scope;
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11 import dmd.IRState;
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12 import dmd.ArrayTypes;
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13 import dmd.TOK;
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63
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14 import dmd.Id;
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0
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15
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16 import dmd.expression.Neg;
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17
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18 import dmd.backend.Util;
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72
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19 import dmd.backend.OPER;
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20
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0
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21 class NegExp : UnaExp
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22 {
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23 this(Loc loc, Expression e)
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24 {
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25 super(loc, TOKneg, NegExp.sizeof, e);
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26 }
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27
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72
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28 override Expression semantic(Scope sc)
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0
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29 {
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30 Expression e;
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31
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32 version (LOGSEMANTIC) {
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33 printf("NegExp::semantic('%s')\n", toChars());
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34 }
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35 if (!type)
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36 {
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37 UnaExp.semantic(sc);
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38 e1 = resolveProperties(sc, e1);
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39 e = op_overload(sc);
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40 if (e)
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41 return e;
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42
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43 e1.checkNoBool();
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109
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44 if (!e1.isArrayOperand())
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0
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45 e1.checkArithmetic();
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46
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47 type = e1.type;
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48 }
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49 return this;
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50 }
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51
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72
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52 override Expression optimize(int result)
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0
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53 {
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54 Expression e;
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55
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56 e1 = e1.optimize(result);
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57 if (e1.isConst() == 1)
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58 {
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59 e = Neg(type, e1);
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60 }
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61 else
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62 e = this;
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63
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64 return e;
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65 }
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66
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72
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67 override Expression interpret(InterState istate)
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0
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68 {
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69 assert(false);
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70 }
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71
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72
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72 override void buildArrayIdent(OutBuffer buf, Expressions arguments)
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0
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73 {
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74 assert(false);
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75 }
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76
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72
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77 override Expression buildArrayLoop(Arguments fparams)
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0
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78 {
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79 assert(false);
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80 }
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81
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72
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82 override Identifier opId()
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0
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83 {
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63
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84 return Id.neg;
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85 }
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86
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72
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87 override elem* toElem(IRState* irs)
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0
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88 {
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89 elem *e = el_una(OPneg, type.totym(), e1.toElem(irs));
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90 el_setLoc(e,loc);
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91 return e;
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92 }
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93 }
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94
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