Mercurial > projects > ddmd
view dmd/BoolExp.d @ 187:b0d41ff5e0df
Added expandability scheme outlined in http://www.dsource.org/forums/viewtopic.php?t=5659&sid=6f2150ff5b0bffcd47512a6a7608d218
author | Abscissa |
---|---|
date | Tue, 07 Jun 2011 23:37:34 -0400 |
parents | e3afd1303184 |
children | 52188e7e3fb5 |
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module dmd.BoolExp; import dmd.common; import dmd.Expression; import dmd.backend.elem; import dmd.UnaExp; import dmd.InterState; import dmd.Type; import dmd.Loc; import dmd.Scope; import dmd.IRState; import dmd.TOK; import dmd.expression.Bool; import dmd.backend.OPER; import dmd.backend.Util; import dmd.DDMDExtensions; class BoolExp : UnaExp { mixin insertMemberExtension!(typeof(this)); this(Loc loc, Expression e, Type t) { register(); super(loc, TOKtobool, BoolExp.sizeof, e); type = t; } override Expression semantic(Scope sc) { super.semantic(sc); e1 = resolveProperties(sc, e1); e1 = e1.checkToBoolean(); type = Type.tboolean; return this; } override Expression optimize(int result) { Expression e; e1 = e1.optimize(result); if (e1.isConst() == 1) { e = Bool(type, e1); } else e = this; return e; } override Expression interpret(InterState istate) { assert(false); } override int isBit() { return true; } override elem* toElem(IRState* irs) { elem* e1 = this.e1.toElem(irs); return el_una(OPbool,type.totym(),e1); } }