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<TITLE> [Mono-bugs] [Bug 39108][Wis] New - incorrect parameter array resolution for an argument with explicit cast
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<H1>[Mono-bugs] [Bug 39108][Wis] New - incorrect parameter array resolution for an argument with explicit cast
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<B>bugzilla-daemon@rocky.ximian.com
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<A HREF="mailto:bugzilla-daemon%40rocky.ximian.com"
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TITLE="[Mono-bugs] [Bug 39108][Wis] New - incorrect parameter array resolution for an argument with explicit cast">bugzilla-daemon@rocky.ximian.com
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<I>Wed, 5 Mar 2003 11:02:51 -0500 (EST)</I>
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<!--beginarticle-->
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<PRE>Please do not reply to this email- if you want to comment on the bug, go to the
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URL shown below and enter your comments there.
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Changed by <A HREF="mailto:avd@openlinksw.com.">avd@openlinksw.com.</A>
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<A HREF="http://bugzilla.ximian.com/show_bug.cgi?id=39108">http://bugzilla.ximian.com/show_bug.cgi?id=39108</A>
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--- shadow/39108 Wed Mar 5 11:02:51 2003
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+++ shadow/39108.tmp.14601 Wed Mar 5 11:02:51 2003
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@@ -0,0 +1,65 @@
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+Bug#: 39108
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+Product: Mono/MCS
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+Version: unspecified
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+OS:
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+OS Details:
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+Status: NEW
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+Resolution:
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+Severity:
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+Priority: Wishlist
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+Component: Misc
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+AssignedTo: <A HREF="mailto:mono-bugs@ximian.com">mono-bugs@ximian.com</A>
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+ReportedBy: <A HREF="mailto:avd@openlinksw.com">avd@openlinksw.com</A>
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+QAContact: <A HREF="mailto:mono-bugs@ximian.com">mono-bugs@ximian.com</A>
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+TargetMilestone: ---
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+URL:
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+Cc:
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+Summary: incorrect parameter array resolution for an argument with explicit cast
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+
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+Description of Problem:
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+
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+The section 10.5.1.4 of C# Language Specification
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+allows passing of parameter array argument as a
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+normal paramter without putting it into new array
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+only if an argument is implicitly convertible to the
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+parameter array type.
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+
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+In the end of this section there is an example that
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+shows how explicit conversion of argumment to object
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+(type object cannot be implicitly converted to type
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+object[]) affects resolution of normal/expanded form
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+of method invocation.
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+
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+Mcs does this incorrectly.
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+
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+Steps to reproduce the problem:
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+Run this program:
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+
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+using System;
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+
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+public class TestParams
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+{
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+ public static void Main (string[] args)
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+ {
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+ Params (null);
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+ Params ((object) null);
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+ }
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+
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+ private static void Params (params object[] ps)
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+ {
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+ if (ps == null)
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+ Console.WriteLine ("null");
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+ else
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+ Console.WriteLine (ps.GetType ());
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+ }
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+}
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+
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+Actual Results:
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+
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+null
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+null
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+
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+Expected Results (verified with MS .NET):
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+
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+null
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+System.Object[]
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</PRE>
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