函数惰性加载

• use Leevel\Support\Fn;

{
    $this->assertFalse(function_exists('Tests\\Support\\Fixtures\\Fn\\testgroup_fn1'));
    $this->assertFalse(function_exists('Tests\\Support\\Fixtures\\Fn\\testgroup_fn2'));
    $result = (new Fn())('Tests\\Support\\Fixtures\\Fn\\testgroup_fn1');
    $this->assertSame('hello world', $result);
    $result = (new Fn())('Tests\\Support\\Fixtures\\Fn\\testgroup_fn2');
    $this->assertSame('hello world2', $result);
    $this->assertTrue(function_exists('Tests\\Support\\Fixtures\\Fn\\testgroup_fn1'));
    $this->assertTrue(function_exists('Tests\\Support\\Fixtures\\Fn\\testgroup_fn2'));
}

闭包调用已载入的分组函数

public function testGroupWithClosureWithFuncWasLoaded(): void
{
    $this->assertTrue(function_exists('Tests\\Support\\Fixtures\\Fn\\testgroup_fn1'));
    $this->assertTrue(function_exists('Tests\\Support\\Fixtures\\Fn\\testgroup_fn2'));
    $result = (new Fn())(function () {
        return testgroup_fn1();
    });
    $this->assertSame('hello world', $result);
        return testgroup_fn2();
    });
    $this->assertSame('hello world2', $result);
}

字符串调用单个文件函数

public function testSingleFn(): void
{
    $this->assertFalse(function_exists('Tests\\Support\\Fixtures\\Fn\\single_fn'));
    $result = (new Fn())('Tests\\Support\\Fixtures\\Fn\\single_fn');
    $this->assertSame('hello single fn', $result);
    $this->assertTrue(function_exists('Tests\\Support\\Fixtures\\Fn\\single_fn'));
}

public function testSingleFnWithClosure(): void
{
    $this->assertTrue(function_exists('Tests\\Support\\Fixtures\\Fn\\single_fn'));
    $result = (new Fn())(function () {
        return single_fn();
    });
    $this->assertSame('hello single fn', $result);
}

字符串调用 index 索引函数

public function testIndexWithClosure(): void
    $this->assertTrue(function_exists('Tests\\Support\\Fixtures\\Fn\\foo_bar'));
    $result = (new Fn())(function () {
        return foo_bar();
    });
    $this->assertSame('foo bar', $result);
    $result = (new Fn())(function () {
        return foo_bar(' haha');
    });
    $this->assertSame('foo bar haha', $result);
}

闭包调用多个函数

public function testIndexWithClosureWithMulti(): void
{
    $this->assertTrue(function_exists('Tests\\Support\\Fixtures\\Fn\\foo_bar'));
    $result = (new Fn())(function () {
        $result1 = foo_bar();
        return $result1.' '.foo_bar();
    });
    $this->assertSame('foo bar foo bar', $result);