v2 / vlib / v / tests / comptime / comptime_println_test.v
27 lines · 25 sloc · 451 bytes · 6488041a749df9762348d019c4223908c476f2e2
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1struct Foo {


2    a int


3    b f32


4    c string


5}


6


7fn print_struct[T](x &T) []string {


8    mut a := []string{}


9    $for field in T.fields {


10        typ := typeof((*x).$(field.name)).name


11        val := (*x).$(field.name)


12        a << '${field.name} (${typ}) = ${val}'


13    }


14    return a


15}


16


17fn test_main() {


18    foo := Foo{


19        a: 123


20        b: 4.56


21        c: 'hello'


22    }


23    out := print_struct(&foo)


24    assert out[0] == 'a (int) = 123'


25    assert out[1] == 'b (f32) = 4.56'


26    assert out[2] == 'c (string) = hello'


27}


28