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#[macro_use]
extern crate derive_destructure2;
#[derive(destructure, remove_trait_impls)]
struct Foo<'a, 'b, T> {
some_ref: &'a i64,
some_ref_mut: &'b mut i32,
some_val: T,
}
impl<'a, 'b, T> Drop for Foo<'a, 'b, T> {
fn drop(&mut self) {
panic!("Shouldn't drop this");
}
}
#[test]
fn test_simple_destructure() {
let x = 3;
let mut y = 4;
let foo = Foo {
some_ref: &x,
some_ref_mut: &mut y,
some_val: 5.6,
};
let (x, y, z) = foo.destructure();
assert_eq!(*x, 3);
assert_eq!(*y, 4);
*y = 5;
assert_eq!(*y, 5);
assert_eq!(z, 5.6);
}
#[test]
fn test_simple_remove_trait_impls() {
let x = 3;
let mut y = 4;
let foo = Foo {
some_ref: &x,
some_ref_mut: &mut y,
some_val: 5.6,
};
let foo = foo.remove_trait_impls();
assert_eq!(*foo.some_ref, 3);
assert_eq!(*foo.some_ref_mut, 4);
*foo.some_ref_mut = 5;
assert_eq!(*foo.some_ref_mut, 5);
assert_eq!(foo.some_val, 5.6);
}
trait SomeTrait {}
impl SomeTrait for i32 {}
#[derive(destructure, remove_trait_impls)]
struct TraitBounded<T: SomeTrait>(T);
impl<T: SomeTrait> Drop for TraitBounded<T> {
fn drop(&mut self) {
panic!("Shouldn't drop this");
}
}
#[derive(destructure, remove_trait_impls)]
struct TraitBounded2<'a, 'b, T: SomeTrait + 'b>
where
'b: 'a,
{
r: &'a &'b T,
}
impl<'a, 'b: 'a, T: SomeTrait + 'b> Drop for TraitBounded2<'a, 'b, T> {
fn drop(&mut self) {
panic!("Shouldn't drop this");
}
}
#[test]
fn test_trait_bounded_destructure() {
let x = TraitBounded(7);
let (x,) = x.destructure();
assert_eq!(x, 7);
}
#[test]
fn test_trait_bounded_remove_trait_impls() {
let x = TraitBounded(7);
let x = x.remove_trait_impls();
assert_eq!(x.0, 7);
}
#[test]
fn test_trait_bounded2_destructure() {
let i = 7;
let x = TraitBounded2 { r: &&i };
let (r,) = x.destructure();
assert_eq!(**r, 7);
}
#[test]
fn test_trait_bounded2_remove_trait_impls() {
let i = 7;
let x = TraitBounded2 { r: &&i };
let x = x.remove_trait_impls();
assert_eq!(**x.r, 7);
}
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