[Issue 6857] Precondition contract checks should be statically bound.

[d-bugmail at puremagic.com]

http://d.puremagic.com/issues/show_bug.cgi?id=6857


Walter Bright <bugzilla at digitalmars.com> changed:

           What    |Removed                     |Added
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             Status|REOPENED                    |RESOLVED
         Resolution|                            |INVALID


--- Comment #7 from Walter Bright <bugzilla at digitalmars.com> 2012-05-02 14:11:46 PDT ---
This is a misunderstanding about how inheritance works. If an A is passed to
foo(), then only A's preconditions are checked. If a B is passed, then either
A's precondition or B's precondition must be satisified.

This is how standard inheritance works. I did not invent this.

It is not a bug, and changing this behavior would completely break how
inheritance works.

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