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1 module dmd.expression.Neg;
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2
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3 import dmd.Type;
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4 import dmd.Loc;
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5 import dmd.RealExp;
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6 import dmd.Expression;
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7 import dmd.ComplexExp;
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8 import dmd.IntegerExp;
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9 import dmd.Complex;
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10
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11 Expression Neg(Type type, Expression e1)
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12 {
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13 Expression e;
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14 Loc loc = e1.loc;
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15
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16 if (e1.type.isreal())
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17 {
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18 e = new RealExp(loc, -e1.toReal(), type);
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19 }
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20 else if (e1.type.isimaginary())
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21 {
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22 e = new RealExp(loc, -e1.toImaginary(), type);
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23 }
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24 else if (e1.type.iscomplex())
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25 {
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26 Complex!(real) c = e1.toComplex();
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27 e = new ComplexExp(loc, Complex!(real)(-c.re, -c.im), type);
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28 }
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29 else
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30 e = new IntegerExp(loc, -e1.toInteger(), type);
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31
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32 return e;
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33 } |
