--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/dmd/OrOrExp.d	Sat Oct 24 08:42:06 2009 +0400
@@ -0,0 +1,128 @@
+module dmd.OrOrExp;
+
+import dmd.BinExp;
+import dmd.Scope;
+import dmd.InterState;
+import dmd.TOK;
+import dmd.Expression;
+import dmd.Loc;
+import dmd.IRState;
+import dmd.TY;
+import dmd.WANT;
+import dmd.IntegerExp;
+import dmd.Type;
+import dmd.CommaExp;
+import dmd.Global;
+import dmd.BoolExp;
+
+import dmd.expression.Util;
+
+import dmd.backend.elem;
+import dmd.backend.OPER;
+import dmd.backend.Util;
+
+class OrOrExp : BinExp
+{
+    this(Loc loc, Expression e1, Expression e2)
+	{
+		super(loc, TOK.TOKoror, OrOrExp.sizeof, e1, e2);
+	}
+	
+    Expression semantic(Scope sc)
+	{
+		uint cs1;
+
+		// same as for AndAnd
+		e1 = e1.semantic(sc);
+		e1 = resolveProperties(sc, e1);
+		e1 = e1.checkToPointer();
+		e1 = e1.checkToBoolean();
+		cs1 = sc.callSuper;
+
+		if (sc.flags & SCOPE.SCOPEstaticif)
+		{
+			/* If in static if, don't evaluate e2 if we don't have to.
+			 */
+			e1 = e1.optimize(WANTflags);
+			if (e1.isBool(true))
+			{
+				return new IntegerExp(loc, 1, Type.tboolean);
+			}
+		}
+
+		e2 = e2.semantic(sc);
+		sc.mergeCallSuper(loc, cs1);
+		e2 = resolveProperties(sc, e2);
+		e2 = e2.checkToPointer();
+
+		type = Type.tboolean;
+		if (e2.type.ty == Tvoid)
+			type = Type.tvoid;
+		if (e2.op == TOKtype || e2.op == TOKimport)
+			error("%s is not an expression", e2.toChars());
+		return this;
+	}
+
+    Expression checkToBoolean()
+	{
+		e2 = e2.checkToBoolean();
+		return this;
+	}
+	
+    int isBit()
+	{
+		assert(false);
+	}
+	
+    Expression optimize(int result)
+	{
+		Expression e;
+
+		e1 = e1.optimize(WANTflags | (result & WANTinterpret));
+		e = this;
+		if (e1.isBool(true))
+		{	
+			// Replace with (e1, 1)
+			e = new CommaExp(loc, e1, new IntegerExp(loc, 1, type));
+			e.type = type;
+			e = e.optimize(result);
+		}
+		else
+		{
+			e2 = e2.optimize(WANTflags | (result & WANTinterpret));
+			if (result && e2.type.toBasetype().ty == Tvoid && !global.errors)
+				error("void has no value");
+			if (e1.isConst())
+			{
+				if (e2.isConst())
+				{	
+					int n1 = e1.isBool(1);
+					int n2 = e2.isBool(1);
+
+					e = new IntegerExp(loc, n1 || n2, type);
+				}
+				else if (e1.isBool(false))
+					e = new BoolExp(loc, e2, type);
+			}
+		}
+		return e;
+	}
+	
+    Expression interpret(InterState* istate)
+	{
+		assert(false);
+	}
+
+    bool checkSideEffect(int flag)
+	{
+		assert(false);
+	}
+
+    elem* toElem(IRState* irs)
+	{
+		elem* e = toElemBin(irs,OPoror);
+		if (global.params.cov && e2.loc.linnum)
+			e.E2() = el_combine(incUsageElem(irs, e2.loc), e.E2);
+		return e;
+	}
+}
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