[Mono-bugs] [Bug 56731][Nor] New - Alias does not take precedent when two classes have the same name

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Changed by gmiyake@carter-inc.com.

http://bugzilla.ximian.com/show_bug.cgi?id=56731

--- shadow/56731	2004-04-08 20:36:44.000000000 -0400
+++ shadow/56731.tmp.15298	2004-04-08 20:36:44.000000000 -0400
@@ -0,0 +1,159 @@
+Bug#: 56731
+Product: Mono: Compilers
+Version: unspecified
+OS: Red Hat 9.0
+OS Details: RH 9, Mono 0.31.99
+Status: NEW   
+Resolution: 
+Severity: 
+Priority: Normal
+Component: C#
+AssignedTo: mono-bugs@ximian.com                            
+ReportedBy: gmiyake@carter-inc.com               
+QAContact: mono-bugs@ximian.com
+TargetMilestone: ---
+URL: 
+Cc: 
+Summary: Alias does not take precedent when two classes have the same name
+
+Please fill in this template when reporting a bug, unless you know what 
+you are doing.
+Description of Problem:
+
+When there are two classes with the same name, setting an alias for the 
+class name (that has the same class name) does not work. For instance, if 
+there are two classes named Class1 from different namespaces, an alias 
+can be set with "using Class1 = NameSpace1.Class1;". In .NET 1.1 this 
+will mean that all references to Class1 will resolve to 
+NameSpace1.Class1, references to NameSpace2.Class1 will have to be fully 
+qualified. Currently Mono does not recognize the alias.
+
+Steps to reproduce the problem:
+1. Compile the following code. (This compiles in .NET 1.1)
+2. 
+3. 
+
+Actual Results:
+make
+source files: Main.cs NameSpace1Class1.cs NameSpace2Class1.cs
+mcs -g /target:exe Main.cs NameSpace1Class1.cs NameSpace2Class1.cs
+Main.cs(29) error CS1502: The best overloaded match for method 'void 
+Driver.Driver.method1 (AliasTest.NameSpac
+e1.Class1)' has some invalid arguments
+Main.cs(29) error CS1503: Argument 0: Cannot convert 
+from 'AliasTest.NameSpace2.Class1' to 'AliasTest.NameSpac
+e1.Class1'
+Main.cs(29) error CS1501: No overload for method `method1' takes `1' 
+arguments
+Main.cs(29) error CS8006: Could not find any applicable function for this 
+argument list
+Compilation failed: 4 error(s), 0 warnings
+make: *** [AliasTest.exe] Error 1
+
+Expected Results:
+Clean compile. The alias should take precedence for the class name.
+
+How often does this happen? 
+Always.
+
+Additional Information:
+The three files used for the test follow.
+
+
+--------------------------------------------------------------
+File: Main.cs
+
+using System;
+using Class1 = AliasTest.NameSpace1.Class1;
+using AliasTest.NameSpace2;
+
+namespace Driver
+{
+	/// <summary>
+	/// Summary description for Class1.
+	/// </summary>
+    public class Driver {
+        public void method1(AliasTest.NameSpace1.Class1 pArg1) 
+        {
+            Console.WriteLine("Method 1 arg id is : " + pArg1.Id);
+        }
+
+        public void method2(AliasTest.NameSpace2.Class1 pArg1) 
+        {
+            Console.WriteLine("Method 2 arg id is : " + pArg1.Id);
+        }
+        /// <summary>
+        /// The main entry point for the application.
+        /// </summary>
+        [STAThread]
+        static void Main(string[] args)
+        {
+     
+            Class1 cl1 = new Class1();
+            Driver drv = new Driver();
+            drv.method1(cl1);
+            
+            Console.WriteLine("Using just Class1, id is " + cl1.Id);
+            AliasTest.NameSpace2.Class1 cl2 = new 
+AliasTest.NameSpace2.Class1();
+            Console.WriteLine("Using fully qualified name 
+AliasTest.NameSpace2.Class1, id is " + cl2.Id);
+            Console.WriteLine("Press Enter to exit.");
+            Console.ReadLine();
+        }
+    }
+}
+
+------------------------------------------------------------------------
+File:NameSpace1Class1.cs
+using System;
+
+namespace AliasTest.NameSpace1
+{
+	/// <summary>
+	/// Summary description for Class1.
+	/// </summary>
+    public class Class1
+    {
+        private int myInt = 0;
+
+        public Class1()
+        {
+        }
+
+        public int Id 
+        {
+            get
+            {
+                return myInt;
+            }
+        }
+    }
+}
+
+--------------------------------------------------------------------------
+File: NameSpace2Class1.cs
+using System;
+
+namespace AliasTest.NameSpace2
+{
+	/// <summary>
+	/// Summary description for NameSpace2Class1.
+	/// </summary>
+    public class Class1
+    {
+        private int myInt = 2;
+
+        public Class1()
+        {
+        }
+
+        public int Id 
+        {
+            get
+            {
+                return myInt;
+            }
+        }
+    }
+}