Newsgroups: php.internals
Path: news.php.net
Xref: news.php.net php.internals:114828
MIME-Version: 1.0
References: <9adf063b-2598-4dd4-9e2b-cf2cd4f53b86@www.fastmail.com>
In-Reply-To: <9adf063b-2598-4dd4-9e2b-cf2cd4f53b86@www.fastmail.com>
Date: Fri, 11 Jun 2021 13:01:43 +0200
Message-ID: <CAC5V6ghwesXNn_Lj59OFbteZCxB0dFtfPME-103B-vruHUQzHA@mail.gmail.com>
To: Larry Garfield <larry@garfieldtech.com>
Cc: php internals <internals@lists.php.net>
Content-Type: multipart/alternative; boundary="0000000000007f2ba205c47b6fb3"
Subject: Re: [PHP-DEV] [RFC] Partial Function Application, take 2
From: guilliam.xavier@gmail.com (Guilliam Xavier)

--0000000000007f2ba205c47b6fb3
Content-Type: text/plain; charset="UTF-8"

Sorry, me again :s  I have tested the examples from
https://wiki.php.net/rfc/partial_function_application on
https://3v4l.org/#focus=rfc.partials and several of them currently give an
error:

- Ex 10: on the line `$c = stuff(?, ?, f: 3.5, ..., p: $point);`
=> Fatal error: Named arguments must come after all place holders
(typo I guess, `$c = stuff(?, ?, ..., f: 3.5, p: $point);` is OK)

- (Ex 11: no error but a typo: `'hi'` vs `'foo'`)

- Ex 16: for the last call `(four(..., d: 4, a: 1))(2, 3);`
=> Fatal error: Uncaught ArgumentCountError: four(): Argument #2 ($b) not
passed
(on the function definition line)
(`(four(..., d: 4, a: 1))(2, 3, 5, 6);` idem,
but `(four(..., d: 4, a: 1))(b: 2, c: 3);` throws an "Unknown named
parameter $b" Error on the call line)
(weird)

- func_get_args() and friends: one the last line `$f(1, 2);` (after `$f =
f(?);`)
=> Fatal error: Uncaught Error: too many arguments for application of f, 2
given and a maximum of 1 expected
(can make sense, e.g. https://externals.io/message/114532#114554 )

- (Callable reference: no error but a typo: `$f` vs `$foo`)

- Optimizations: on the line `$boo = $baz(4, ...);`
=> Fatal error: Uncaught Error: too many arguments and or place holders for
application of Closure::__invoke, 1 given and a maximum of 0 expected
(`$boo = $baz(?);` throws the same error,
but `$boo = $baz(4);` throws a "not enough arguments for implementation of
foo, 4 given and exactly 5 expected" Error,
and `$boo = $baz(...);` makes the subsequent `$boo(5);` throw a "not enough
arguments ..." Error)
(weird, looks like `$bar = $foo(2, ...);` and/or `$baz = $bar(3, ...);`
dropped too many params)

Regards,

-- 
Guilliam Xavier

--0000000000007f2ba205c47b6fb3--