Mercurial > projects > ddmd
annotate dmd/XorExp.d @ 67:f708f0452e81
some of the backend/codegen stuff implemented
| author | korDen |
|---|---|
| date | Mon, 23 Aug 2010 21:21:05 +0400 |
| parents | cab4c37afb89 |
| children | 2e2a5c3f943a |
| rev | line source |
|---|---|
| 0 | 1 module dmd.XorExp; |
| 2 | |
| 3 import dmd.Expression; | |
| 4 import dmd.Identifier; | |
| 5 import dmd.InterState; | |
| 6 import dmd.MATCH; | |
| 7 import dmd.Id; | |
| 8 import dmd.Type; | |
| 9 import dmd.OutBuffer; | |
| 10 import dmd.Loc; | |
| 11 import dmd.Scope; | |
| 12 import dmd.IntRange; | |
| 13 import dmd.IRState; | |
| 14 import dmd.ArrayTypes; | |
| 15 import dmd.BinExp; | |
| 16 import dmd.TOK; | |
| 17 import dmd.TY; | |
| 18 | |
| 67 | 19 import dmd.backend.elem; |
| 20 import dmd.backend.OPER; | |
| 0 | 21 import dmd.expression.Util; |
| 22 import dmd.expression.Xor; | |
| 23 | |
| 24 class XorExp : BinExp | |
| 25 { | |
| 26 this(Loc loc, Expression e1, Expression e2) | |
| 27 { | |
| 28 super(loc, TOK.TOKxor, XorExp.sizeof, e1, e2); | |
| 29 } | |
| 30 | |
| 31 Expression semantic(Scope sc) | |
| 32 { | |
| 33 Expression e; | |
| 34 | |
| 35 if (!type) | |
| 36 { | |
| 37 BinExp.semanticp(sc); | |
| 38 e = op_overload(sc); | |
| 39 if (e) | |
| 40 return e; | |
| 41 if (e1.type.toBasetype().ty == Tbool && | |
| 42 e2.type.toBasetype().ty == Tbool) | |
| 43 { | |
| 44 type = e1.type; | |
| 45 e = this; | |
| 46 } | |
| 47 else | |
| 48 { | |
| 49 typeCombine(sc); | |
| 50 if (e1.op != TOKslice && e2.op != TOKslice) | |
| 51 { | |
| 52 e1.checkIntegral(); | |
| 53 e2.checkIntegral(); | |
| 54 } | |
| 55 } | |
| 56 } | |
| 57 return this; | |
| 58 } | |
| 59 | |
| 60 Expression optimize(int result) | |
| 61 { | |
| 62 Expression e; | |
| 63 | |
| 64 e1 = e1.optimize(result); | |
| 65 e2 = e2.optimize(result); | |
| 66 if (e1.isConst() == 1 && e2.isConst() == 1) | |
| 67 e = Xor(type, e1, e2); | |
| 68 else | |
| 69 e = this; | |
| 70 | |
| 71 return e; | |
| 72 } | |
| 73 | |
| 63 | 74 Expression interpret(InterState istate) |
| 0 | 75 { |
| 76 assert(false); | |
| 77 } | |
| 78 | |
| 79 void buildArrayIdent(OutBuffer buf, Expressions arguments) | |
| 80 { | |
|
12
832f71e6f96c
*Exp and *AssignExp arrayOp implementation added (might be a bit incomplete)
korDen
parents:
0
diff
changeset
|
81 Exp_buildArrayIdent(buf, arguments, "Xor"); |
| 0 | 82 } |
| 83 | |
| 84 Expression buildArrayLoop(Arguments fparams) | |
| 85 { | |
|
12
832f71e6f96c
*Exp and *AssignExp arrayOp implementation added (might be a bit incomplete)
korDen
parents:
0
diff
changeset
|
86 /* Evaluate assign expressions left to right |
|
832f71e6f96c
*Exp and *AssignExp arrayOp implementation added (might be a bit incomplete)
korDen
parents:
0
diff
changeset
|
87 */ |
|
832f71e6f96c
*Exp and *AssignExp arrayOp implementation added (might be a bit incomplete)
korDen
parents:
0
diff
changeset
|
88 Expression ex1 = e1.buildArrayLoop(fparams); |
|
832f71e6f96c
*Exp and *AssignExp arrayOp implementation added (might be a bit incomplete)
korDen
parents:
0
diff
changeset
|
89 Expression ex2 = e2.buildArrayLoop(fparams); |
|
832f71e6f96c
*Exp and *AssignExp arrayOp implementation added (might be a bit incomplete)
korDen
parents:
0
diff
changeset
|
90 Expression e = new XorExp(Loc(0), ex1, ex2); |
|
832f71e6f96c
*Exp and *AssignExp arrayOp implementation added (might be a bit incomplete)
korDen
parents:
0
diff
changeset
|
91 return e; |
| 0 | 92 } |
| 93 | |
| 94 MATCH implicitConvTo(Type t) | |
| 95 { | |
| 56 | 96 MATCH result = Expression.implicitConvTo(t); |
| 97 | |
| 98 if (result == MATCHnomatch) | |
| 99 { | |
| 100 MATCH m1 = e1.implicitConvTo(t); | |
| 101 MATCH m2 = e2.implicitConvTo(t); | |
| 102 | |
| 103 // Pick the worst match | |
| 104 result = (m1 < m2) ? m1 : m2; | |
| 105 } | |
| 106 return result; | |
| 0 | 107 } |
| 108 | |
| 109 IntRange getIntRange() | |
| 110 { | |
| 111 assert(false); | |
| 112 } | |
| 113 | |
| 114 bool isCommutative() | |
| 115 { | |
| 116 return true; | |
| 117 } | |
| 118 | |
| 119 Identifier opId() | |
| 120 { | |
| 121 return Id.ixor; | |
| 122 } | |
| 123 | |
| 124 Identifier opId_r() | |
| 125 { | |
| 126 return Id.ixor_r; | |
| 127 } | |
| 128 | |
| 129 elem* toElem(IRState* irs) | |
| 130 { | |
| 67 | 131 return toElemBin(irs,OPxor); |
| 0 | 132 } |
| 133 } | |
| 134 |