Mercurial > projects > ddmd
annotate dmd/AddAssignExp.d @ 117:fe941d774f4a
+ ctfe of assign operations
| author | Trass3r |
|---|---|
| date | Thu, 02 Sep 2010 02:50:19 +0200 |
| parents | e28b18c23469 |
| children | 9e39c7de8438 |
| rev | line source |
|---|---|
| 0 | 1 module dmd.AddAssignExp; |
| 2 | |
| 114 | 3 import dmd.common; |
| 117 | 4 import dmd.expression.Add; |
| 0 | 5 import dmd.BinExp; |
| 6 import dmd.Loc; | |
| 7 import dmd.Expression; | |
| 8 import dmd.Scope; | |
| 9 import dmd.InterState; | |
|
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832f71e6f96c
*Exp and *AssignExp arrayOp implementation added (might be a bit incomplete)
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10 import dmd.Argument; |
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832f71e6f96c
*Exp and *AssignExp arrayOp implementation added (might be a bit incomplete)
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11 import dmd.STC; |
| 0 | 12 import dmd.OutBuffer; |
| 13 import dmd.ArrayTypes; | |
| 14 import dmd.Identifier; | |
| 15 import dmd.IRState; | |
| 16 import dmd.TOK; | |
| 17 import dmd.Type; | |
| 18 import dmd.TY; | |
| 19 import dmd.AddExp; | |
| 20 import dmd.CastExp; | |
| 21 import dmd.AssignExp; | |
| 22 import dmd.Global; | |
| 23 import dmd.Id; | |
| 24 | |
| 25 import dmd.backend.OPER; | |
| 26 import dmd.backend.elem; | |
| 27 | |
| 28 class AddAssignExp : BinExp | |
| 29 { | |
| 30 this(Loc loc, Expression e1, Expression e2) | |
| 31 { | |
| 32 super(loc, TOK.TOKaddass, AddAssignExp.sizeof, e1, e2); | |
| 33 } | |
| 34 | |
| 72 | 35 override Expression semantic(Scope sc) |
| 0 | 36 { |
| 37 Expression e; | |
| 38 | |
| 39 if (type) | |
| 40 return this; | |
| 41 | |
| 42 BinExp.semantic(sc); | |
| 43 e2 = resolveProperties(sc, e2); | |
| 44 | |
| 45 e = op_overload(sc); | |
| 46 if (e) | |
| 47 return e; | |
| 48 | |
| 49 Type tb1 = e1.type.toBasetype(); | |
| 50 Type tb2 = e2.type.toBasetype(); | |
| 51 | |
| 52 if (e1.op == TOK.TOKslice) | |
| 53 { | |
| 54 typeCombine(sc); | |
| 55 type = e1.type; | |
| 56 return arrayOp(sc); | |
| 57 } | |
| 58 else | |
| 59 { | |
| 60 e1 = e1.modifiableLvalue(sc, e1); | |
| 61 } | |
| 62 | |
| 63 if ((tb1.ty == TY.Tarray || tb1.ty == TY.Tsarray) && (tb2.ty == TY.Tarray || tb2.ty == TY.Tsarray) && tb1.nextOf().equals(tb2.nextOf())) | |
| 64 { | |
| 65 type = e1.type; | |
| 66 typeCombine(sc); | |
| 67 e = this; | |
| 68 } | |
| 69 else | |
| 70 { | |
| 71 e1.checkScalar(); | |
| 72 e1.checkNoBool(); | |
| 73 if (tb1.ty == TY.Tpointer && tb2.isintegral()) | |
| 74 e = scaleFactor(sc); | |
| 75 else if (tb1.ty == TY.Tbit || tb1.ty == TY.Tbool) | |
| 76 { | |
| 77 static if (false) { | |
| 78 // Need to rethink this | |
| 79 if (e1.op != TOK.TOKvar) | |
| 80 { | |
| 81 // Rewrite e1+=e2 to (v=&e1),*v=*v+e2 | |
| 82 VarDeclaration v; | |
| 83 Expression ea; | |
| 84 Expression ex; | |
| 85 | |
| 86 Identifier id = Lexer.uniqueId("__name"); | |
| 87 | |
| 88 v = new VarDeclaration(loc, tb1.pointerTo(), id, null); | |
| 89 v.semantic(sc); | |
| 90 if (!sc.insert(v)) | |
| 91 assert(0); | |
| 92 | |
| 93 v.parent = sc.func; | |
| 94 | |
| 95 ea = new AddrExp(loc, e1); | |
| 96 ea = new AssignExp(loc, new VarExp(loc, v), ea); | |
| 97 | |
| 98 ex = new VarExp(loc, v); | |
| 99 ex = new PtrExp(loc, ex); | |
| 100 e = new AddExp(loc, ex, e2); | |
| 101 e = new CastExp(loc, e, e1.type); | |
| 102 e = new AssignExp(loc, ex.syntaxCopy(), e); | |
| 103 | |
| 104 e = new CommaExp(loc, ea, e); | |
| 105 } | |
| 106 else | |
| 107 { | |
| 108 // Rewrite e1+=e2 to e1=e1+e2 | |
| 109 // BUG: doesn't account for side effects in e1 | |
| 110 // BUG: other assignment operators for bits aren't handled at all | |
| 111 e = new AddExp(loc, e1, e2); | |
| 112 e = new CastExp(loc, e, e1.type); | |
| 113 e = new AssignExp(loc, e1.syntaxCopy(), e); | |
| 114 } | |
| 115 } else { | |
| 116 // Rewrite e1+=e2 to e1=e1+e2 | |
| 117 // BUG: doesn't account for side effects in e1 | |
| 118 // BUG: other assignment operators for bits aren't handled at all | |
| 119 e = new AddExp(loc, e1, e2); | |
| 120 e = new CastExp(loc, e, e1.type); | |
| 121 e = new AssignExp(loc, e1.syntaxCopy(), e); | |
| 122 } | |
| 123 e = e.semantic(sc); | |
| 124 } | |
| 125 else | |
| 126 { | |
| 127 type = e1.type; | |
| 128 typeCombine(sc); | |
| 129 e1.checkArithmetic(); | |
| 130 e2.checkArithmetic(); | |
| 73 | 131 checkComplexAddAssign(); |
| 0 | 132 |
| 133 if (type.isreal() || type.isimaginary()) | |
| 134 { | |
| 135 assert(global.errors || e2.type.isfloating()); | |
| 136 e2 = e2.castTo(sc, e1.type); | |
| 137 } | |
| 138 e = this; | |
| 139 } | |
| 140 } | |
| 141 return e; | |
| 142 } | |
| 143 | |
| 72 | 144 override Expression interpret(InterState istate) |
| 0 | 145 { |
| 117 | 146 return interpretAssignCommon(istate, &Add); |
| 0 | 147 } |
| 148 | |
| 72 | 149 override void buildArrayIdent(OutBuffer buf, Expressions arguments) |
| 0 | 150 { |
|
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832f71e6f96c
*Exp and *AssignExp arrayOp implementation added (might be a bit incomplete)
korDen
parents:
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diff
changeset
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151 AssignExp_buildArrayIdent(buf, arguments, "Add"); |
| 0 | 152 } |
| 153 | |
| 72 | 154 override Expression buildArrayLoop(Arguments fparams) |
| 0 | 155 { |
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832f71e6f96c
*Exp and *AssignExp arrayOp implementation added (might be a bit incomplete)
korDen
parents:
0
diff
changeset
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156 /* Evaluate assign expressions right to left |
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832f71e6f96c
*Exp and *AssignExp arrayOp implementation added (might be a bit incomplete)
korDen
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157 */ |
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832f71e6f96c
*Exp and *AssignExp arrayOp implementation added (might be a bit incomplete)
korDen
parents:
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158 Expression ex2 = e2.buildArrayLoop(fparams); |
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832f71e6f96c
*Exp and *AssignExp arrayOp implementation added (might be a bit incomplete)
korDen
parents:
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diff
changeset
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159 Expression ex1 = e1.buildArrayLoop(fparams); |
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832f71e6f96c
*Exp and *AssignExp arrayOp implementation added (might be a bit incomplete)
korDen
parents:
0
diff
changeset
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160 Argument param = cast(Argument)fparams.data[0]; |
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832f71e6f96c
*Exp and *AssignExp arrayOp implementation added (might be a bit incomplete)
korDen
parents:
0
diff
changeset
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161 param.storageClass = STCundefined; |
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832f71e6f96c
*Exp and *AssignExp arrayOp implementation added (might be a bit incomplete)
korDen
parents:
0
diff
changeset
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162 Expression e = new AddAssignExp(Loc(0), ex1, ex2); |
|
832f71e6f96c
*Exp and *AssignExp arrayOp implementation added (might be a bit incomplete)
korDen
parents:
0
diff
changeset
|
163 return e; |
| 0 | 164 } |
| 165 | |
| 72 | 166 override Identifier opId() /* For operator overloading */ |
| 0 | 167 { |
| 168 return Id.addass; | |
| 169 } | |
| 170 | |
| 72 | 171 override elem* toElem(IRState* irs) |
| 0 | 172 { |
| 173 //printf("AddAssignExp::toElem() %s\n", toChars()); | |
| 174 elem *e; | |
| 175 Type tb1 = e1.type.toBasetype(); | |
| 176 Type tb2 = e2.type.toBasetype(); | |
| 177 | |
| 178 if ((tb1.ty == TY.Tarray || tb1.ty == TY.Tsarray) && (tb2.ty == TY.Tarray || tb2.ty == TY.Tsarray)) | |
| 179 { | |
| 180 error("Array operations not implemented"); | |
| 181 } | |
| 182 else | |
| 183 e = toElemBin(irs, OPER.OPaddass); | |
| 184 | |
| 185 return e; | |
| 186 } | |
| 72 | 187 } |