[Issue 5129] New: More strict 'abstract' management

[d-bugmail at puremagic.com]

http://d.puremagic.com/issues/show_bug.cgi?id=5129

           Summary: More strict 'abstract' management
           Product: D
           Version: D2
          Platform: x86
        OS/Version: Windows
            Status: NEW
          Keywords: diagnostic
          Severity: normal
          Priority: P2
         Component: DMD
        AssignedTo: nobody at puremagic.com
        ReportedBy: bearophile_hugs at eml.cc


--- Comment #0 from bearophile_hugs at eml.cc 2010-10-29 05:10:03 PDT ---
DMD 2.050beta compiles this, then it fails at linking time:


abstract class A {
    public void foo();
}
class B : A {}
void main() {}


What I expect: A compile-time error generated by the compiler, something like:
error(4): class 'B' is not abstract, yet it doesn't implement abstract method
'foo' of class 'A' it inherits from.


See also bug 2946

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