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1 module dmd.BoolExp;
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2
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3 import dmd.Expression;
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4 import dmd.backend.elem;
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5 import dmd.UnaExp;
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6 import dmd.InterState;
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7 import dmd.Type;
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8 import dmd.Loc;
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9 import dmd.Scope;
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10 import dmd.IRState;
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11 import dmd.TOK;
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12
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13 import dmd.backend.OPER;
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14 import dmd.backend.Util;
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15
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16 class BoolExp : UnaExp
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17 {
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18 this(Loc loc, Expression e, Type t)
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19 {
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20 super(loc, TOK.init, 0, e);
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21 type = t;
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22 }
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23
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24 Expression semantic(Scope sc)
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25 {
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26 UnaExp.semantic(sc);
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27 e1 = resolveProperties(sc, e1);
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28 e1 = e1.checkToBoolean();
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29 type = Type.tboolean;
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30 return this;
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31 }
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32
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33 Expression optimize(int result)
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34 {
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35 assert(false);
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36 }
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37
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38 Expression interpret(InterState* istate)
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39 {
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40 assert(false);
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41 }
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42
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43 int isBit()
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44 {
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45 return true;
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46 }
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47
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48 elem* toElem(IRState* irs)
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49 {
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50 elem* e1 = this.e1.toElem(irs);
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51 return el_una(OPbool,type.totym(),e1);
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52 }
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53 }
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54
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