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documents the limitation of attributes on overridden functions #1584

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merged 1 commit into from Mar 26, 2017
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documents the limitation of attributes on overridden functions #1584

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25 changes: 25 additions & 0 deletions spec/function.dd
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Original file line number Diff line number Diff line change
Expand Up @@ -921,6 +921,31 @@ void main()
}
------

$(P It's not allowed to mark an overridden method with the attributes
$(LINK2 attribute.html#disable, $(D @disable)) or
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@wilzbach wilzbach Feb 28, 2017

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please use a macro for such links, e.g RELATIVE_LINK2 would work ;-)

$(LINK2 attribute.html#deprecated, $(D deprecated)).
To stop the compilation or to output the deprecation message, the compiler
must be able to determine the target of the call, which can't be guaranteed
when it is virtual.
)

------
class B
{
void foo() {}
}

class D : B
{
@disable override void foo() {}
}

void main()
{
B b = new D;
b.foo(); // would compiles and then the most derived would be called even if disabled.
}
------

$(H4 $(LNAME2 inline-functions, Inline Functions))

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