[英]Void functions can't return void functions?
I wonder why this is not valid: 我不知道为什么这是无效的:
Class Foobar
{
private function foo(): void {
return;
}
public function bar(): void {
return $this->foo(); // Compile Error: A void function must not return a value
}
}
I know the RFC says this: 我知道RFC这样说:
A function with a void return type, or void function, may either return implicitly, or have a return statement without a value
具有void返回类型的函数或void函数可以隐式返回,或者具有不带值的return语句
But IMHO foo
is void, thus it should be allowed... 但是恕我直言
foo
是无效的,因此应允许...
$this->foo()
does not return void
, but null
. $this->foo()
不返回void
,但返回null
。 So in your bar function, you are actually explicitly returning null
, which is not allowed. 因此,在bar函数中,实际上是显式地返回
null
,这是不允许的。
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