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digitalmars.D.bugs - [Issue 325] New: Overriding members and overloading with alias causes bogus error messages in with().

reply d-bugmail puremagic.com writes:
http://d.puremagic.com/issues/show_bug.cgi?id=325

           Summary: Overriding members and overloading with alias causes
                    bogus error messages in with().
           Product: D
           Version: unspecified
          Platform: PC
        OS/Version: Windows
            Status: NEW
          Severity: normal
          Priority: P2
         Component: DMD
        AssignedTo: bugzilla digitalmars.com
        ReportedBy: chris dprogramming.com


I finally was able to reproduce this problem with a small example:

// Code begin
class Base
{
        private char[] myfoo;
        private char[] mybar;

        // Get/set properties that will be overridden.
        void foo(char[] s) { myfoo = s; }
        char[] foo() { return myfoo; }

        // Get/set properties that will not be overridden.
        void bar(char[] s) { mybar = s; }
        char[] bar() { return mybar; }
}

class Derived: Base
{
        alias Base.foo foo; // Bring in Base's foo getter.
        override void foo(char[] s) { super.foo = s; } // Override foo setter.
}

void main()
{
        Derived d;
        with(d = new Derived)
        {
                foo = "hi"; // Error! Due to the alias up there.
                d.foo = "hi"; // Works
                bar = "hi";
        }
}
// Code end

DMD 0.161 through 0.166 output: test.d(26): need 'this' to access member text

I was able to find a workaround, simply put the alias after the function in the
class instead of before.


--
Sep 06 2006
next sibling parent Thomas Kuehne <thomas-dloop kuehne.cn> writes:
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Hash: SHA1

d-bugmail puremagic.com schrieb am 2006-09-06:

 http://d.puremagic.com/issues/show_bug.cgi?id=325



 I finally was able to reproduce this problem with a small example:

 // Code begin
 class Base
 {
         private char[] myfoo;
         private char[] mybar;

         // Get/set properties that will be overridden.
         void foo(char[] s) { myfoo = s; }
         char[] foo() { return myfoo; }

         // Get/set properties that will not be overridden.
         void bar(char[] s) { mybar = s; }
         char[] bar() { return mybar; }
 }

 class Derived: Base
 {
         alias Base.foo foo; // Bring in Base's foo getter.
         override void foo(char[] s) { super.foo = s; } // Override foo setter.
 }

 void main()
 {
         Derived d;
         with(d = new Derived)
         {
                 foo = "hi"; // Error! Due to the alias up there.
                 d.foo = "hi"; // Works
                 bar = "hi";
         }
 }
 // Code end

 DMD 0.161 through 0.166 output: test.d(26): need 'this' to access member text

 I was able to find a workaround, simply put the alias after the function in the
 class instead of before.


Added to DStress as
http://dstress.kuehne.cn/run/w/with_15_A.d
http://dstress.kuehne.cn/run/w/with_15_B.d
http://dstress.kuehne.cn/run/w/with_15_C.d
http://dstress.kuehne.cn/run/w/with_15_D.d

Thomas


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Sep 07 2006
prev sibling parent d-bugmail puremagic.com writes:
http://d.puremagic.com/issues/show_bug.cgi?id=325


bugzilla digitalmars.com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|                            |FIXED





Fixed in DMC 0.167.


--
Sep 19 2006