2022-06-23 00:45:40 +00:00
|
|
|
// check-pass
|
|
|
|
// compile-flags: -Zunpretty=expanded
|
|
|
|
// edition:2021
|
|
|
|
//
|
|
|
|
// This test checks the code generated for all[*] the builtin derivable traits
|
|
|
|
// on a variety of structs and enums. It protects against accidental changes to
|
|
|
|
// the generated code, and makes deliberate changes to the generated code
|
|
|
|
// easier to review.
|
|
|
|
//
|
|
|
|
// [*] It excludes `Copy` in some cases, because that changes the code
|
|
|
|
// generated for `Clone`.
|
|
|
|
//
|
|
|
|
// [*] It excludes `RustcEncodable` and `RustDecodable`, which are obsolete and
|
|
|
|
// also require the `rustc_serialize` crate.
|
|
|
|
|
|
|
|
#![crate_type = "lib"]
|
|
|
|
#![allow(dead_code)]
|
|
|
|
#![allow(deprecated)]
|
|
|
|
|
|
|
|
// Empty struct.
|
|
|
|
#[derive(Clone, Copy, Debug, Default, Hash, PartialEq, Eq, PartialOrd, Ord)]
|
|
|
|
struct Empty;
|
|
|
|
|
|
|
|
// A basic struct.
|
|
|
|
#[derive(Clone, Copy, Debug, Default, Hash, PartialEq, Eq, PartialOrd, Ord)]
|
|
|
|
struct Point {
|
|
|
|
x: u32,
|
|
|
|
y: u32,
|
|
|
|
}
|
|
|
|
|
2022-06-24 04:06:35 +00:00
|
|
|
// A large struct.
|
2022-06-23 00:45:40 +00:00
|
|
|
#[derive(Clone, Debug, Default, Hash, PartialEq, Eq, PartialOrd, Ord)]
|
|
|
|
struct Big {
|
|
|
|
b1: u32, b2: u32, b3: u32, b4: u32, b5: u32, b6: u32, b7: u32, b8:u32,
|
|
|
|
}
|
|
|
|
|
2022-06-24 04:06:35 +00:00
|
|
|
// A packed tuple struct.
|
|
|
|
#[derive(Clone, Copy, Debug, Default, Hash, PartialEq, Eq, PartialOrd, Ord)]
|
|
|
|
#[repr(packed)]
|
|
|
|
struct Packed(u32);
|
|
|
|
|
2022-07-01 07:35:42 +00:00
|
|
|
// An empty enum.
|
|
|
|
#[derive(Clone, Copy, Debug, Hash, PartialEq, Eq, PartialOrd, Ord)]
|
|
|
|
enum Enum0 {}
|
|
|
|
|
|
|
|
// A single-variant enum.
|
|
|
|
#[derive(Clone, Debug, Hash, PartialEq, Eq, PartialOrd, Ord)]
|
|
|
|
enum Enum1 {
|
|
|
|
Single { x: u32 }
|
|
|
|
}
|
|
|
|
|
2022-06-23 00:45:40 +00:00
|
|
|
// A C-like, fieldless enum.
|
|
|
|
#[derive(Clone, Copy, Debug, Default, Hash, PartialEq, Eq, PartialOrd, Ord)]
|
|
|
|
enum Fieldless {
|
|
|
|
#[default]
|
|
|
|
A,
|
|
|
|
B,
|
|
|
|
C,
|
|
|
|
}
|
|
|
|
|
|
|
|
// An enum with multiple fieldless and fielded variants.
|
|
|
|
#[derive(Clone, Copy, Debug, Default, Hash, PartialEq, Eq, PartialOrd, Ord)]
|
|
|
|
enum Mixed {
|
|
|
|
#[default]
|
|
|
|
P,
|
|
|
|
Q,
|
|
|
|
R(u32),
|
|
|
|
S { d1: u32, d2: u32 },
|
|
|
|
}
|
|
|
|
|
|
|
|
// An enum with no fieldless variants. Note that `Default` cannot be derived
|
|
|
|
// for this enum.
|
|
|
|
#[derive(Clone, Debug, Hash, PartialEq, Eq, PartialOrd, Ord)]
|
|
|
|
enum Fielded {
|
|
|
|
X(u32),
|
|
|
|
Y(bool),
|
|
|
|
Z(Option<i32>),
|
|
|
|
}
|
2022-07-01 06:47:12 +00:00
|
|
|
|
|
|
|
// A union. Most builtin traits are not derivable for unions.
|
|
|
|
#[derive(Clone, Copy)]
|
|
|
|
pub union Union {
|
|
|
|
pub b: bool,
|
|
|
|
pub u: u32,
|
|
|
|
pub i: i32,
|
|
|
|
}
|