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annotate dmd/MinAssignExp.d @ 130:60bb0fe4563e

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dmdfe 2.037 first main iteration
author Eldar Insafutdinov <e.insafutdinov@gmail.com>
date Thu, 09 Sep 2010 22:51:44 +0100
parents 9e39c7de8438
children e3afd1303184
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1 module dmd.MinAssignExp;
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2
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3 import dmd.common;
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4 import dmd.expression.Min;
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5 import dmd.BinExp;
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6 import dmd.Loc;
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7 import dmd.Expression;
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8 import dmd.Scope;
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9 import dmd.InterState;
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10 import dmd.OutBuffer;
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11 import dmd.ArrayTypes;
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12 import dmd.Identifier;
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13 import dmd.IRState;
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14 import dmd.TY;
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15 import dmd.TOK;
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16 import dmd.Id;
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17 import dmd.ArrayLengthExp;
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18
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19 import dmd.backend.elem;
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20 import dmd.backend.Util;
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21 import dmd.backend.OPER;
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22
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23 class MinAssignExp : BinExp
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24 {
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25 this(Loc loc, Expression e1, Expression e2)
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26 {
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27 super(loc, TOK.TOKminass, MinAssignExp.sizeof, e1, e2);
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28 }
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29
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30 override Expression semantic(Scope sc)
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31 {
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32 Expression e;
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33
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34 if (type)
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35 return this;
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36
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37 BinExp.semantic(sc);
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38 e2 = resolveProperties(sc, e2);
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39
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40 e = op_overload(sc);
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41 if (e)
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42 return e;
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43
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44 if (e1.op == TOKarraylength)
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45 {
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46 e = ArrayLengthExp.rewriteOpAssign(this);
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47 e = e.semantic(sc);
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48 return e;
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49 }
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50
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51 if (e1.op == TOKslice)
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52 { // T[] -= ...
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53 typeCombine(sc);
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54 type = e1.type;
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55 return arrayOp(sc);
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56 }
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57
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58 e1 = e1.modifiableLvalue(sc, e1);
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59 e1.checkScalar();
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60 e1.checkNoBool();
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61 if (e1.type.ty == Tpointer && e2.type.isintegral())
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62 e = scaleFactor(sc);
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63 else
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64 {
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65 e1 = e1.checkArithmetic();
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66 e2 = e2.checkArithmetic();
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67 checkComplexAddAssign();
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68 type = e1.type;
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69 typeCombine(sc);
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70 if (type.isreal() || type.isimaginary())
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71 {
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72 assert(e2.type.isfloating());
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73 e2 = e2.castTo(sc, e1.type);
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74 }
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75 e = this;
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76 }
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77 return e;
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78 }
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79
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80 override Expression interpret(InterState istate)
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81 {
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82 return interpretAssignCommon(istate, &Min);
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83 }
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84
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85 override void buildArrayIdent(OutBuffer buf, Expressions arguments)
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86 {
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87 AssignExp_buildArrayIdent(buf, arguments, "Min");
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88 }
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89
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90 override Expression buildArrayLoop(Parameters fparams)
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91 {
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92 return AssignExp_buildArrayLoop!(typeof(this))(fparams);
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93 }
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95 override Identifier opId() /* For operator overloading */
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96 {
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97 return Id.subass;
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98 }
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99
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100 override elem* toElem(IRState* irs)
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101 {
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102 return toElemBin(irs,OPminass);
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103 }
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104 }