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72
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1 module dmd.BoolExp;
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2
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114
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3 import dmd.common;
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72
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4 import dmd.Expression;
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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.Type;
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9 import dmd.Loc;
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10 import dmd.Scope;
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0
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11 import dmd.IRState;
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72
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12 import dmd.TOK;
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0
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13
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142
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14 import dmd.expression.Bool;
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0
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15 import dmd.backend.OPER;
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16 import dmd.backend.Util;
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72
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17
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0
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18 class BoolExp : UnaExp
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19 {
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20 this(Loc loc, Expression e, Type t)
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21 {
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36
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22 super(loc, TOKtobool, BoolExp.sizeof, e);
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0
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23 type = t;
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24 }
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25
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72
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26 override Expression semantic(Scope sc)
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0
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27 {
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141
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28 super.semantic(sc);
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0
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29 e1 = resolveProperties(sc, e1);
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30 e1 = e1.checkToBoolean();
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31 type = Type.tboolean;
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32 return this;
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33 }
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34
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72
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35 override Expression optimize(int result)
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0
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36 {
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141
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37 Expression e;
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38
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39 e1 = e1.optimize(result);
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40 if (e1.isConst() == 1)
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41 {
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42 e = Bool(type, e1);
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43 }
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44 else
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45 e = this;
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46 return e;
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0
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47 }
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48
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72
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49 override Expression interpret(InterState istate)
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0
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50 {
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51 assert(false);
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52 }
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53
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72
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54 override int isBit()
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0
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55 {
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56 return true;
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57 }
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58
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72
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59 override elem* toElem(IRState* irs)
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0
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60 {
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61 elem* e1 = this.e1.toElem(irs);
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62 return el_una(OPbool,type.totym(),e1);
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63 }
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64 }
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65
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