Re: [RFC]

On Fri, 14 Feb 2020 at 01:39, Mike Schinkel <mike@newclarity.net> wrote: > > On Feb 13, 2020, at 7:24 PM, Rowan Tommins <rowan.collins@gmail.com> > wrote: > > > > An idea I had earlier which might solve some of them is if what was > returned was not a normal Closure instance, but a new class like > FunctionReference. It could then "remember" the name of the function > wrapped, and implement __toString, Serializable, etc. It could inherit from > Closure, so instanceof checks would work, and bindTo would return a normal > Closure. I'm sure there's downsides I haven't thought of yet, but I thought > I'd throw the idea into the mix. > > I thought about that too, and mentioned it yesterday in a reply[1] to you > on this list. > > Here is the link to the Gist with the hypothetical code using such a > concept: > > - > https://gist.github.com/mikeschinkel/78684d708358e1d101e319c7a2fdef9c > > -Mike > > > [1] > https://www.mail-archive.com/internals@lists.php.net/msg100719.html > > Maybe, bettern fn: * fn(callable $to_clsoure ): *closure ? I know fn is used in arrow functions. However, for that same reason fn is the most convenient. Using dik examples( by the way, they are brilliant ): $result = Stats::of($string) ->analyze(fn(normalizeNewlines)) ->analyze(fn(readingLevel)) ->analyze(fn(countStats)) ->analyze(fn($synonymSuggester, 'analyze')) ->analyze(fn(WordCouter::class, 'analyze')) ->analyze(fn($s) => wordDistribution($s, 3)) Returning to ::function again and with a modified example of dik( again ): Now is: result = Stats::of($string) ->analyze('\Stats\Analyzer\normalizeNewlines') ->analyze('\Stats\Readings\readingLevel') ->analyze('\Stats\Parser\countStats') ->analyze(fn($s) => \Stats\Analyzer\wordDistribution($s, 3)); Could be: use function Stats\Analyzer\normalizeNewlines; use function \Stats\Readings\readingLevel; use function \Stats\Parser\countStats; result = Stats::of($string) ->analyze(normalizeNewlines::function) ->analyze(readingLevel::function) ->analyze(countStats::function ) ->analyze(fn($s) => \Stats\Analyzer\wordDistribution($s, 3)); Maybe '::function' is something long, however it wiil be autocompleted by editors and, moreover, nowadays function is a reserved keyword. Could we use "normalizeNewlines::name", but in this case: normalizeNewlines is function or class ?, because in this case could be "normalizeNewlines" a class and "name" a constant of class. Rowan put me in an awkward situation with [MyClass::class, method::function ] however, in this case, could be simply MyClass::class, 'method' ]. Because method don't need be used with namespace. ::function could be documented with advice of being used with name of functions. Because ::function is also useful in array: $filters = [ normalizeNewlines::function, readingLevel::function, countStats::function ] $content = Stats::of($string); foreach($filters as $filter) $filter($content); Regards