return value;
}
}
+
+ class ThrowExpression : ExpressionStatement
+ {
+ Expression expr;
+
+ public ThrowExpression (Expression expr, Location loc)
+ {
+ this.expr = expr;
+ this.loc = loc;
+ }
+
+ protected override void CloneTo (CloneContext clonectx, Expression t)
+ {
+ var target = (ThrowExpression)t;
+ target.expr = expr.Clone (clonectx);
+ }
+
+ public override bool ContainsEmitWithAwait ()
+ {
+ return expr.ContainsEmitWithAwait ();
+ }
+
+ public override Expression CreateExpressionTree (ResolveContext rc)
+ {
+ rc.Report.Error (8188, loc, "An expression tree cannot not contain a throw expression");
+ return expr;
+ }
+
+ protected override Expression DoResolve (ResolveContext rc)
+ {
+ expr = expr.Resolve (rc, ResolveFlags.Type | ResolveFlags.VariableOrValue);
+
+ if (expr == null)
+ return null;
+
+ expr = Throw.ConvertType (rc, expr);
+
+ eclass = ExprClass.Value;
+ type = InternalType.ThrowExpr;
+ return this;
+ }
+
+ public override void Emit (EmitContext ec)
+ {
+ EmitStatement (ec);
+ }
+
+ public override void EmitStatement (EmitContext ec)
+ {
+ expr.Emit (ec);
+
+ ec.Emit (OpCodes.Throw);
+ }
+
+ public override void FlowAnalysis (FlowAnalysisContext fc)
+ {
+ expr.FlowAnalysis (fc);
+ }
+
+ public override Reachability MarkReachable (Reachability rc)
+ {
+ return Reachability.CreateUnreachable ();
+ }
+ }
}