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1 module dmd.ShrAssignExp;
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2
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114
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3 import dmd.common;
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4 import dmd.BinExp;
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5 import dmd.Loc;
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6 import dmd.Expression;
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7 import dmd.Scope;
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8 import dmd.InterState;
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9 import dmd.Identifier;
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10 import dmd.IRState;
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11 import dmd.Id;
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12 import dmd.TOK;
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13 import dmd.Type;
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14
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15 import dmd.backend.elem;
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16 import dmd.backend.OPER;
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17
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117
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18 import dmd.expression.Shr;
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19 import dmd.expression.Util;
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20
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21 class ShrAssignExp : BinExp
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22 {
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23 this(Loc loc, Expression e1, Expression e2)
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24 {
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25 super(loc, TOK.TOKshrass, ShrAssignExp.sizeof, e1, e2);
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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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29 {
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30 Expression e;
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31
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32 BinExp.semantic(sc);
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33 e2 = resolveProperties(sc, e2);
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34
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35 e = op_overload(sc);
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36 if (e)
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37 return e;
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38
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39 e1 = e1.modifiableLvalue(sc, e1);
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40 e1.checkScalar();
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41 e1.checkNoBool();
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42 type = e1.type;
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43 typeCombine(sc);
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44 e1.checkIntegral();
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45 e2 = e2.checkIntegral();
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46 e2 = e2.castTo(sc, Type.tshiftcnt);
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47
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48 return this;
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49 }
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50
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51 override Expression interpret(InterState istate)
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52 {
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53 return interpretAssignCommon(istate, &Shr);
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54 }
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55
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56 override Identifier opId() /* For operator overloading */
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57 {
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58 return Id.shrass;
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59 }
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60
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61 override elem* toElem(IRState* irs)
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62 {
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63 return toElemBin(irs, OPshrass);
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64 }
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72
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65 }
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