[Issue 9633] compiles trait wrongly returns true even when object method call actually does not compile

[d-bugmail at puremagic.com]

https://d.puremagic.com/issues/show_bug.cgi?id=9633


Vladimir Panteleev <thecybershadow at gmail.com> changed:

           What    |Removed                     |Added
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                 CC|                            |thecybershadow at gmail.com


--- Comment #3 from Vladimir Panteleev <thecybershadow at gmail.com> 2014-03-02 18:06:33 EET ---
Why is it a requirement that F() should not compile?

I have filed issue 12230 which is an opposite of this pull request.

Some things to be aware of:

- Inside speculative blocks (in __traits(compiles) or typeof(exp)), we always
pretend that we have an "is" pointer. This greatly simplifies writing template
constraints for methods, among other things.
- The rules for fields and methods differ when they are passed as alias
parameters (see issue 12230). When a field is passed as an alias parameter, the
template becomes nested within the field's aggregate (struct/class). When a
method is passed, this doesn't happen, which I think is an unwarranted
inconsistence.

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