get_return.phpt   [plain text]

--TEST--
Generator::getReturn() success cases
--FILE--
<?php

function gen1() {
    return 42;
    yield 24;
}

$gen = gen1();
// Calling getReturn() directly here is okay due to auto-priming
var_dump($gen->getReturn());

function gen2() {
    yield 24;
    return 42;
}

$gen = gen2();
var_dump($gen->current());
$gen->next();
var_dump($gen->getReturn());

// & for generators specifies by-reference yield, not return
// so it's okay to return a literal
function &gen3() {
    $var = 24;
    yield $var;
    return 42;
}

$gen = gen3();
var_dump($gen->current());
$gen->next();
var_dump($gen->getReturn());

// Return types for generators specify the return of the function,
// not of the generator return value, so this code is okay
function gen4() : Generator {
    yield 24;
    return 42;
}

$gen = gen4();
var_dump($gen->current());
$gen->next();
var_dump($gen->getReturn());

// Has no explicit return, but implicitly return NULL at the end
function gen5() {
    yield 24;
}

$gen = gen5();
var_dump($gen->current());
$gen->next();
var_dump($gen->getReturn());

// Explicit value-less return also results in a NULL generator
// return value and there is no interference with type declarations
function gen6() : Generator {
    return;
    yield 24;
}

$gen = gen6();
var_dump($gen->getReturn());

?>
--EXPECTF--
int(42)
int(24)
int(42)
int(24)
int(42)
int(24)
int(42)
int(24)
NULL
NULL