On 10/01/2020 17:29, Larry Garfield wrote:
But having some kind of working way to reference a function that doesn't
involve concatenating a string onto a namespace constant would be*super* nice.
Whether it's called ::func or ::nameof I don't much care.
Viz, replace this:
$func = __NAMESPACE__ . '\myfunc`';
With this:
use My\Code\myfunc;
$func = myfunc::nameof;
Note that the above example should be:
use function My\Code\myfunc;
$func = myfunc::nameof;
That's important, because we couldn't actually have one operator that
resolved both types, either at compile time or run time. For instance,
this is valid code:
namespace Whatever;
use Bar\Baz as foo;
use function Something\other as foo;
echo foo::class; // "Bar\Baz"
foo(); // runs Something\other(), not Bar\Baz()
A ::func operator would also need to deal with everybody's favourite
name resolution: the dynamic fallback to global functions. In other
words, this...
namespace Foo;
echo strlen::func;
...would need to print "Foo\strlen" if it was defined, and "strlen" if
not. That would then make it odd if a completely undefined function
didn't error, so I don't think it could match the current behaviour of
::class.
Regards,
--
Rowan Tommins (né Collins)
[IMSoP]
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