[Mono-bugs] [Bug 36156][Nor] New - Wrong error in double assignment with an indexer

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Changed by rpaterlini@hotmail.com.

http://bugzilla.ximian.com/show_bug.cgi?id=36156

--- shadow/36156	Sun Dec 29 03:42:09 2002
+++ shadow/36156.tmp.18626	Sun Dec 29 03:42:09 2002
@@ -0,0 +1,94 @@
+Bug#: 36156
+Product: Mono/MCS
+Version: unspecified
+OS: 
+OS Details: 
+Status: NEW   
+Resolution: 
+Severity: 
+Priority: Normal
+Component: Misc
+AssignedTo: mono-bugs@ximian.com                            
+ReportedBy: rpaterlini@hotmail.com               
+QAContact: mono-bugs@ximian.com
+TargetMilestone: ---
+URL: 
+Cc: 
+Summary: Wrong error in double assignment with an indexer
+
+Please fill in this template when reporting a bug, unless you know what 
+you are doing.
+Description of Problem:
+
+I have error CS0030 compiling this code:
+
+using System;
+using System.Collections;
+
+class MyData {
+	public int _i;
+	public MyData(int i) {
+		_i = i;
+	}
+}
+
+class CompilerTest {
+	
+	Hashtable _hash = new Hashtable();
+		
+	MyData GetMyData(int i) {
+		return new MyData(i);
+	}
+	
+	public void Test(int i) {
+	
+		MyData md;
+		md = (MyData)_hash[i];
+		if ( md == null ) {
+			// error CS0030: Cannot convert type 'void' 
+to 'MyData' 
+			md = (MyData)(_hash[i] = GetMyData(i));
+		}
+		Console.WriteLine( md._i.ToString() );		
+	}
+}
+
+public class TestMain {
+   static public void Main() {
+	   CompilerTest ct = new CompilerTest();
+	   ct.Test(2);
+
+   }
+} 
+
+
+
+
+Steps to reproduce the problem:
+1. Compile the above code
+
+Actual Results:
+Assignment.cs(25) error CS0030: Cannot convert type 'void' to 'MyData'
+
+Expected Results:
+Compilation ok.
+
+How often does this happen? 
+Every time
+
+Additional Information:
+
+Changing the offending line with this code
+  MyData md2;
+  md = (MyData)(md2 = GetMyData(i));
+remove the error.
+
+The mcs compiler is checked out from cvs on december 29 and compiled on
+Windows2000.
+
+The Microsoft csc compiler compile the code.
+
+I have found this error compiling the SqlHelper.cs class in method 
+GetSpParameterSet.
+This class is available here:
+http://msdn.microsoft.com/library/en-us/dnbda/html/daab-rm.asp