--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/dmd/NegExp.d	Sat Oct 24 08:42:06 2009 +0400
@@ -0,0 +1,93 @@
+module dmd.NegExp;
+
+import dmd.Expression;
+import dmd.Identifier;
+import dmd.backend.elem;
+import dmd.UnaExp;
+import dmd.InterState;
+import dmd.OutBuffer;
+import dmd.Loc;
+import dmd.Scope;
+import dmd.IRState;
+import dmd.ArrayTypes;
+import dmd.TOK;
+
+import dmd.expression.Neg;
+
+import dmd.backend.Util;
+import dmd.backend.OPER;
+
+class NegExp : UnaExp
+{
+	this(Loc loc, Expression e)
+	{
+		super(loc, TOKneg, NegExp.sizeof, e);
+	}
+
+	Expression semantic(Scope sc)
+	{
+		Expression e;
+
+	version (LOGSEMANTIC) {
+		printf("NegExp::semantic('%s')\n", toChars());
+	}
+		if (!type)
+		{
+			UnaExp.semantic(sc);
+			e1 = resolveProperties(sc, e1);
+			e = op_overload(sc);
+			if (e)
+				return e;
+
+			e1.checkNoBool();
+			if (e1.op != TOKslice)
+				e1.checkArithmetic();
+
+			type = e1.type;
+		}
+		return this;
+	}
+
+	Expression optimize(int result)
+	{
+		Expression e;
+
+		e1 = e1.optimize(result);
+		if (e1.isConst() == 1)
+		{
+			e = Neg(type, e1);
+		}
+		else
+			e = this;
+
+		return e;
+	}
+
+	Expression interpret(InterState* istate)
+	{
+		assert(false);
+	}
+
+	void buildArrayIdent(OutBuffer buf, Expressions arguments)
+	{
+		assert(false);
+	}
+
+	Expression buildArrayLoop(Arguments fparams)
+	{
+		assert(false);
+	}
+
+	Identifier opId()
+	{
+		assert(false);
+	}
+
+	elem* toElem(IRState* irs)
+	{
+		elem *e = el_una(OPneg, type.totym(), e1.toElem(irs));
+		el_setLoc(e,loc);
+		return e;
+	}
+}
+