Mercurial > projects > ddmd
view dmd/XorExp.d @ 160:ff61fb0e06ae
RTLSYM update
author | korDen |
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date | Mon, 20 Sep 2010 01:18:05 +0400 |
parents | 60bb0fe4563e |
children | e3afd1303184 |
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module dmd.XorExp; import dmd.common; import dmd.Expression; import dmd.Identifier; import dmd.InterState; import dmd.MATCH; import dmd.Id; import dmd.Type; import dmd.OutBuffer; import dmd.Loc; import dmd.Scope; import dmd.IntRange; import dmd.IRState; import dmd.ArrayTypes; import dmd.BinExp; import dmd.TOK; import dmd.TY; import dmd.backend.elem; import dmd.backend.OPER; import dmd.expression.Util; import dmd.expression.Xor; class XorExp : BinExp { this(Loc loc, Expression e1, Expression e2) { super(loc, TOK.TOKxor, XorExp.sizeof, e1, e2); } override Expression semantic(Scope sc) { Expression e; if (!type) { BinExp.semanticp(sc); e = op_overload(sc); if (e) return e; if (e1.type.toBasetype().ty == Tbool && e2.type.toBasetype().ty == Tbool) { type = e1.type; e = this; } else { typeCombine(sc); if (!e1.isArrayOperand()) e1.checkIntegral(); if (!e2.isArrayOperand()) e2.checkIntegral(); } } return this; } override Expression optimize(int result) { Expression e; e1 = e1.optimize(result); e2 = e2.optimize(result); if (e1.isConst() == 1 && e2.isConst() == 1) e = Xor(type, e1, e2); else e = this; return e; } override Expression interpret(InterState istate) { return interpretCommon(istate, &Xor); } override void buildArrayIdent(OutBuffer buf, Expressions arguments) { Exp_buildArrayIdent(buf, arguments, "Xor"); } override Expression buildArrayLoop(Parameters fparams) { return Exp_buildArrayLoop!(typeof(this))(fparams); } override MATCH implicitConvTo(Type t) { MATCH result = Expression.implicitConvTo(t); if (result == MATCHnomatch) { MATCH m1 = e1.implicitConvTo(t); MATCH m2 = e2.implicitConvTo(t); // Pick the worst match result = (m1 < m2) ? m1 : m2; } return result; } override IntRange getIntRange() { assert(false); } override bool isCommutative() { return true; } override Identifier opId() { return Id.ixor; } override Identifier opId_r() { return Id.ixor_r; } override elem* toElem(IRState* irs) { return toElemBin(irs,OPxor); } }