iluuu1994

>  An Enumeration may have one or more case definitions, with no maximum, although at least one is required. 

Could an enum with no values potentially be useful? If not, should we still allow it for consistencies sake?

> __toString, Do we want this part or not? I only thought of it while writing this. I don't know if it's good or bad.

Could be useful. Why not.

> The Enum Type may also implement an interface, which all Cases must then fulfill, directly or indirectly. 

iluuu1994

<?php

enum Option {
	case None;
	case Some(mixed $value) {
		public function availableForSome() {
			var_dump($this->value);
		}
	};
	

iluuu1994

Terminals unused in grammar

    "comment (T_COMMENT)"
    "doc comment (T_DOC_COMMENT)"
    "open tag (T_OPEN_TAG)"
    "open tag with echo (T_OPEN_TAG_WITH_ECHO)"
    "close tag (T_CLOSE_TAG)"
    "whitespace (T_WHITESPACE)"
    "invalid character (T_BAD_CHARACTER)"
    T_ERROR

iluuu1994

<?php

function takes_ref(&$ref) {}

$foo = null;
takes_ref($foo?->bar);
// Can either:
// 1. Throw no error, pass null
// 2. Throw a "Cannot parameter 1 by reference" error

iluuu1994

$_main:
     ; (lines=72, args=0, vars=1, tmps=19)
     ; (before optimizer)
     ; /tmp/php-src/Zend/tests/match/039.phpt:1-62
     ; return  [] RANGE[0..0]
0000 ECHO string("--TEST--
Test match with duplicate conditions
--FILE--
")
0001 ASSIGN CV0($value) int(1)

iluuu1994

=~= operator

// bool vs int
false =~= '' // true
false =~= '0' // false
false =~= 'false' // false
true =~= '1' // true
true =~= 'true' // false

iluuu1994

match in other languages

Java

http://blog.codefx.org/java/switch-expressions/

result = switch (foo) {
    case bar -> baz;
 case bar2 -> baz2;

iluuu1994

<?php

function sum(int $a, int $b, &$c) {
    $c = $a + $b;
    return $c;
}

function reflection_param_to_string(\ReflectionParameter $reflectionParam, bool $useList = false) {
    $string = '';

iluuu1994

<?php

enum Boundaries
{
    case includeNone;
    case includeStart;
    case includeEnd;
    case includeAll;

    public function startIncluded(): bool

iluuu1994

Terminals unused in grammar

    "comment (T_COMMENT)"
    "doc comment (T_DOC_COMMENT)"
    "open tag (T_OPEN_TAG)"
    "open tag with echo (T_OPEN_TAG_WITH_ECHO)"
    "close tag (T_CLOSE_TAG)"
    "whitespace (T_WHITESPACE)"
    "invalid character (T_BAD_CHARACTER)"
    T_ERROR