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72
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1 module dmd.RemoveExp;
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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.Loc;
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6 import dmd.IRState;
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7 import dmd.BinExp;
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0
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8 import dmd.TOK;
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9 import dmd.Type;
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10 import dmd.TypeAArray;
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11 import dmd.TY;
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12
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13 import dmd.backend.Util;
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14 import dmd.backend.OPER;
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15 import dmd.backend.Symbol;
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16 import dmd.backend.TYM;
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72
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17 import dmd.backend.mTY;
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0
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18
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19 /* This deletes the key e1 from the associative array e2
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20 */
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72
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21
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0
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22 class RemoveExp : BinExp
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23 {
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24 this(Loc loc, Expression e1, Expression e2)
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25 {
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26 super(loc, TOKremove, RemoveExp.sizeof, e1, e2);
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27 type = Type.tvoid;
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28 }
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29
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72
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30 override elem* toElem(IRState* irs)
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0
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31 {
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32 elem* e;
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33 Type tb = e1.type.toBasetype();
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34 assert(tb.ty == Taarray);
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35 TypeAArray taa = cast(TypeAArray)tb;
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36 elem* ea = e1.toElem(irs);
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37 elem* ekey = e2.toElem(irs);
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38 elem* ep;
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39 elem* keyti;
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40
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41 if (tybasic(ekey.Ety) == TYstruct)
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42 {
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43 ekey = el_una(OPstrpar, TYstruct, ekey);
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44 ekey.Enumbytes = ekey.E1.Enumbytes;
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45 assert(ekey.Enumbytes);
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46 }
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47
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48 Symbol* s = taa.aaGetSymbol("Del", 0);
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49 keyti = taa.index.getInternalTypeInfo(null).toElem(irs);
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50 ep = el_params(ekey, keyti, ea, null);
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51 e = el_bin(OPcall, TYnptr, el_var(s), ep);
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52
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53 el_setLoc(e,loc);
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54 return e;
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55 }
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56 }
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57
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