Agreed, new bug report submitted.
> else // doesn't compile, member is not accessible error
> foreach (type; __traits (getAttributes, mixin(`T.`~member)))
> static if (is (type == attribute))
> return true;
> return false;
> Maybe its trying to use it inside of __traits that is causing it?
Maybe __traits is
I don't have any examples of the const bool thing not working,
its just something I feel like I recall, though I could be
mistaking it for the __traits example.
because this works:
foreach (type; mixin(`__traits (getAttributes, T.`~member~`)`))
static if (is (type == attribute))
return true;
I'm not really sure. Here is an example of the problem:
const bool has_attribute (T, string member, alias attribute) ()
{
static if (1) // ok
mixin(
`foreach (type; __traits (getAttributes, T.`~member~`))`
`static if (is (type == attribute))`
`return true;`
);
Vlad Levenfeld:
> but beware I've noticed that sometimes this is not
> equivalent to the previous version and I'm not sure how or why that happens.
> In particular I notice that
>
> mixin("const bool value = "~expr~";)");
> and
> const bool value = mixin(expr);
>
> are not the same, for some re
I've recently found out that you can deal with the abundance of
backticks and escapes in a couple of ways:
q{ your code here... }
will resolve to a string but your editor can still highlight it
as D code, making it more readable.
also, turning things like:
mixin ("if ("~expr~")")
into:
if
On Friday, 9 May 2014 at 12:19:12 UTC, John Colvin wrote:
On Friday, 9 May 2014 at 11:53:59 UTC, Stefan Frijters wrote:
I've been playing with UDAs a bit and I wanted to find all
variables with a particular attribute in various modules. I
thought I had it cracked, until I added a module that co
On Friday, 9 May 2014 at 11:53:59 UTC, Stefan Frijters wrote:
I've been playing with UDAs a bit and I wanted to find all
variables with a particular attribute in various modules. I
thought I had it cracked, until I added a module that contains
an alias declaration, which makes it choke when try
I've been playing with UDAs a bit and I wanted to find all
variables with a particular attribute in various modules. I
thought I had it cracked, until I added a module that contains an
alias declaration, which makes it choke when trying to execute
__traits(getAttributes, ...). A small example i
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