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annotate dmd/ShlAssignExp.d @ 178:e3afd1303184

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Many small bugs fixed Made all classes derive from TObject to detect memory leaks (functionality is disabled for now) Began work on overriding backend memory allocations (to avoid memory leaks)
author korDen
date Sun, 17 Oct 2010 07:42:00 +0400
parents 206db751bd4c
children b0d41ff5e0df
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1 module dmd.ShlAssignExp;
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2
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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.TOK;
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12 import dmd.Id;
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13 import dmd.Type;
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14 import dmd.ArrayLengthExp;
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15 import dmd.backend.elem;
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16 import dmd.backend.OPER;
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17 import dmd.expression.Shl;
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18 import dmd.expression.Util;
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19
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20 class ShlAssignExp : BinExp
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21 {
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22 this(Loc loc, Expression e1, Expression e2)
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23 {
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24 register();
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25 super(loc, TOK.TOKshlass, ShlAssignExp.sizeof, e1, e2);
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26 }
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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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32 //printf("ShlAssignExp.semantic()\n");
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33 BinExp.semantic(sc);
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34 e2 = resolveProperties(sc, e2);
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35
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36 e = op_overload(sc);
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37 if (e)
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38 return e;
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40 if (e1.op == TOK.TOKarraylength)
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41 {
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42 e = ArrayLengthExp.rewriteOpAssign(this);
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43 e = e.semantic(sc);
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44 return e;
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45 }
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47 e1 = e1.modifiableLvalue(sc, e1);
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48 e1.checkScalar();
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49 e1.checkNoBool();
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50 type = e1.type;
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51 typeCombine(sc);
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52 e1.checkIntegral();
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53 e2 = e2.checkIntegral();
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54 e2 = e2.castTo(sc, Type.tshiftcnt);
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55 return this;
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56 }
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58 override Expression interpret(InterState istate)
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59 {
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60 return interpretAssignCommon(istate, &Shl);
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61 }
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63 override Identifier opId() /* For operator overloading */
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64 {
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65 return Id.shlass;
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66 }
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67
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68 override elem* toElem(IRState* irs)
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69 {
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70 return toElemBin(irs,OPshlass);
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71 }
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72 }