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#![allow(dead_code)]
#[cfg(feature = "use_core")]
extern crate core;
#[macro_use]
extern crate derivative;
use std::marker::PhantomData;
#[derive(Derivative)]
#[derivative(Debug)]
struct Foo<T, U> {
foo: T,
#[derivative(Debug="ignore")]
bar: U,
}
#[derive(Derivative)]
#[derivative(Debug)]
struct Bar<T, U> (
T,
#[derivative(Debug="ignore")]
U,
);
#[derive(Derivative)]
#[derivative(Debug)]
enum C<T, U> {
V1(T),
V2(#[derivative(Debug="ignore")] U),
V3(String),
}
#[derive(Derivative)]
#[derivative(Debug)]
enum D<U> {
V1 {
#[derivative(Debug="ignore")]
a: U
}
}
#[derive(Derivative)]
#[derivative(Debug)]
struct F<U>(#[derivative(Debug="ignore")] U);
#[derive(Derivative)]
#[derivative(Debug)]
struct G<U>(isize, #[derivative(Debug="ignore")] U);
#[derive(Derivative)]
#[derivative(Debug)]
struct J<U>(#[derivative(Debug="ignore")] U);
struct NoDebug;
trait ToDebug {
fn to_show(&self) -> String;
}
impl<T: std::fmt::Debug> ToDebug for T {
fn to_show(&self) -> String {
format!("{:?}", self)
}
}
#[derive(Derivative)]
#[derivative(Debug)]
struct PhantomField<T> {
foo: PhantomData<T>,
}
#[derive(Derivative)]
#[derivative(Debug)]
struct PhantomTuple<T> {
foo: PhantomData<(T,)>,
}
#[test]
fn main() {
assert_eq!(Foo { foo: 42, bar: NoDebug }.to_show(), "Foo { foo: 42 }".to_string());
assert_eq!(Bar(42, NoDebug).to_show(), "Bar(42)".to_string());
assert_eq!(C::V1::<i32, NoDebug>(12).to_show(), "V1(12)".to_string());
assert_eq!(C::V2::<i32, NoDebug>(NoDebug).to_show(), "V2".to_string());
assert_eq!(C::V3::<i32, NoDebug>("foo".to_string()).to_show(), "V3(\"foo\")".to_string());
assert_eq!(D::V1 { a: NoDebug }.to_show(), "V1".to_string());
assert_eq!(F(NoDebug).to_show(), "F".to_string());
assert_eq!(G(42, NoDebug).to_show(), "G(42)".to_string());
assert_eq!(J(NoDebug).to_show(), "J".to_string());
assert_eq!(&format!("{:?}", PhantomField::<NoDebug> { foo: Default::default() }), "PhantomField { foo: PhantomData }");
assert_eq!(&format!("{:?}", PhantomTuple::<NoDebug> { foo: Default::default() }), "PhantomTuple { foo: PhantomData }");
}
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