Mercurial > projects > ddmd
annotate dmd/DivExp.d @ 63:cab4c37afb89
A bunch of implementations
| author | korDen |
|---|---|
| date | Mon, 23 Aug 2010 16:52:24 +0400 |
| parents | 832f71e6f96c |
| children | 2e2a5c3f943a |
| rev | line source |
|---|---|
| 0 | 1 module dmd.DivExp; |
| 2 | |
| 3 import dmd.Expression; | |
| 4 import dmd.Identifier; | |
| 5 import dmd.backend.elem; | |
| 6 import dmd.InterState; | |
| 7 import dmd.OutBuffer; | |
| 8 import dmd.Loc; | |
| 9 import dmd.Scope; | |
| 10 import dmd.IntRange; | |
| 11 import dmd.IRState; | |
| 12 import dmd.ArrayTypes; | |
| 13 import dmd.BinExp; | |
| 14 import dmd.TOK; | |
| 15 import dmd.Type; | |
| 16 import dmd.NegExp; | |
| 17 import dmd.TY; | |
| 18 import dmd.Id; | |
| 19 | |
| 20 import dmd.expression.Div; | |
| 21 import dmd.backend.OPER; | |
| 22 import dmd.backend.Util; | |
| 23 | |
| 24 class DivExp : BinExp | |
| 25 { | |
| 26 this(Loc loc, Expression e1, Expression e2) | |
| 27 { | |
| 28 super(loc, TOK.TOKdiv, DivExp.sizeof, e1, e2); | |
| 29 } | |
| 30 | |
| 31 Expression semantic(Scope sc) | |
| 32 { | |
| 33 Expression e; | |
| 34 | |
| 35 if (type) | |
| 36 return this; | |
| 37 | |
| 38 super.semanticp(sc); | |
| 39 e = op_overload(sc); | |
| 40 if (e) | |
| 41 return e; | |
| 42 | |
| 43 typeCombine(sc); | |
| 44 if (e1.op != TOK.TOKslice && e2.op != TOK.TOKslice) | |
| 45 { | |
| 46 e1.checkArithmetic(); | |
| 47 e2.checkArithmetic(); | |
| 48 } | |
| 49 if (type.isfloating()) | |
| 50 { | |
| 51 Type t1 = e1.type; | |
| 52 Type t2 = e2.type; | |
| 53 | |
| 54 if (t1.isreal()) | |
| 55 { | |
| 56 type = t2; | |
| 57 if (t2.isimaginary()) | |
| 58 { | |
| 59 // x/iv = i(-x/v) | |
| 60 e2.type = t1; | |
| 61 Expression ee = new NegExp(loc, this); | |
| 62 ee = ee.semantic(sc); | |
| 63 return e; | |
| 64 } | |
| 65 } | |
| 66 else if (t2.isreal()) | |
| 67 { | |
| 68 type = t1; | |
| 69 } | |
| 70 else if (t1.isimaginary()) | |
| 71 { | |
| 72 if (t2.isimaginary()) { | |
| 73 switch (t1.ty) | |
| 74 { | |
| 75 case TY.Timaginary32: type = Type.tfloat32; break; | |
| 76 case TY.Timaginary64: type = Type.tfloat64; break; | |
| 77 case TY.Timaginary80: type = Type.tfloat80; break; | |
| 78 default: assert(0); | |
| 79 } | |
| 80 } else { | |
| 81 type = t2; // t2 is complex | |
| 82 } | |
| 83 } | |
| 84 else if (t2.isimaginary()) | |
| 85 { | |
| 86 type = t1; // t1 is complex | |
| 87 } | |
| 88 } | |
| 89 return this; | |
| 90 } | |
| 91 | |
| 92 Expression optimize(int result) | |
| 93 { | |
| 94 Expression e; | |
| 95 | |
| 96 //printf("DivExp.optimize(%s)\n", toChars()); | |
| 97 e1 = e1.optimize(result); | |
| 98 e2 = e2.optimize(result); | |
| 99 if (e1.isConst() == 1 && e2.isConst() == 1) | |
| 100 { | |
| 101 e = Div(type, e1, e2); | |
| 102 } | |
| 103 else | |
| 104 e = this; | |
| 105 return e; | |
| 106 } | |
| 107 | |
| 63 | 108 Expression interpret(InterState istate) |
| 0 | 109 { |
| 110 assert(false); | |
| 111 } | |
| 112 | |
| 113 void buildArrayIdent(OutBuffer buf, Expressions arguments) | |
| 114 { | |
|
12
832f71e6f96c
*Exp and *AssignExp arrayOp implementation added (might be a bit incomplete)
korDen
parents:
0
diff
changeset
|
115 Exp_buildArrayIdent(buf, arguments, "Div"); |
| 0 | 116 } |
| 117 | |
| 118 Expression buildArrayLoop(Arguments fparams) | |
| 119 { | |
|
12
832f71e6f96c
*Exp and *AssignExp arrayOp implementation added (might be a bit incomplete)
korDen
parents:
0
diff
changeset
|
120 /* Evaluate assign expressions left to right |
|
832f71e6f96c
*Exp and *AssignExp arrayOp implementation added (might be a bit incomplete)
korDen
parents:
0
diff
changeset
|
121 */ |
|
832f71e6f96c
*Exp and *AssignExp arrayOp implementation added (might be a bit incomplete)
korDen
parents:
0
diff
changeset
|
122 Expression ex1 = e1.buildArrayLoop(fparams); |
|
832f71e6f96c
*Exp and *AssignExp arrayOp implementation added (might be a bit incomplete)
korDen
parents:
0
diff
changeset
|
123 Expression ex2 = e2.buildArrayLoop(fparams); |
|
832f71e6f96c
*Exp and *AssignExp arrayOp implementation added (might be a bit incomplete)
korDen
parents:
0
diff
changeset
|
124 Expression e = new DivExp(Loc(0), ex1, ex2); |
|
832f71e6f96c
*Exp and *AssignExp arrayOp implementation added (might be a bit incomplete)
korDen
parents:
0
diff
changeset
|
125 return e; |
| 0 | 126 } |
| 127 | |
| 128 IntRange getIntRange() | |
| 129 { | |
| 130 assert(false); | |
| 131 } | |
| 132 | |
| 133 Identifier opId() | |
| 134 { | |
| 135 return Id.div; | |
| 136 } | |
| 137 | |
| 138 Identifier opId_r() | |
| 139 { | |
| 140 return Id.div_r; | |
| 141 } | |
| 142 | |
| 143 elem* toElem(IRState* irs) | |
| 144 { | |
| 145 return toElemBin(irs,OPdiv); | |
| 146 } | |
| 147 } | |
| 148 |