9f82651a5f
Special-case deriving `PartialOrd` for enums with dataless variants
I was able to get slightly better codegen by flipping the derived `PartialOrd` logic for two-variant enums. I also tried to document the implementation of the derive macro to make the special-case logic a little clearer.
```rs
#[derive(PartialEq, PartialOrd)]
pub enum A<T> {
A,
B(T)
}
```
```diff
impl<T: ::core::cmp::PartialOrd> ::core::cmp::PartialOrd for A<T> {
#[inline]
fn partial_cmp(
&self,
other: &A<T>,
) -> ::core::option::Option<::core::cmp::Ordering> {
let __self_tag = ::core::intrinsics::discriminant_value(self);
let __arg1_tag = ::core::intrinsics::discriminant_value(other);
- match ::core::cmp::PartialOrd::partial_cmp(&__self_tag, &__arg1_tag) {
- ::core::option::Option::Some(::core::cmp::Ordering::Equal) => {
- match (self, other) {
- (A::B(__self_0), A::B(__arg1_0)) => {
- ::core::cmp::PartialOrd::partial_cmp(__self_0, __arg1_0)
- }
- _ => ::core::option::Option::Some(::core::cmp::Ordering::Equal),
- }
+ match (self, other) {
+ (A::B(__self_0), A::B(__arg1_0)) => {
+ ::core::cmp::PartialOrd::partial_cmp(__self_0, __arg1_0)
}
- cmp => cmp,
+ _ => ::core::cmp::PartialOrd::partial_cmp(&__self_tag, &__arg1_tag),
}
}
}
```
Godbolt: [Current](https://godbolt.org/z/GYjEzG1T8), [New](https://godbolt.org/z/GoK78qx15)
I'm not sure how common a case comparing two enums like this (such as `Option`) is, and if it's worth the slowdown of adding a special case to the derive. If it causes overall regressions it might be worth just manually implementing this for `Option`.
1070 lines
36 KiB
Plaintext
1070 lines
36 KiB
Plaintext
#![feature(prelude_import)]
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// check-pass
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// compile-flags: -Zunpretty=expanded
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// edition:2021
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//
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// This test checks the code generated for all[*] the builtin derivable traits
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// on a variety of structs and enums. It protects against accidental changes to
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// the generated code, and makes deliberate changes to the generated code
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// easier to review.
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//
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// [*] It excludes `Copy` in some cases, because that changes the code
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// generated for `Clone`.
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//
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// [*] It excludes `RustcEncodable` and `RustDecodable`, which are obsolete and
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// also require the `rustc_serialize` crate.
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|
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#![crate_type = "lib"]
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#![allow(dead_code)]
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#![allow(deprecated)]
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#[prelude_import]
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use std::prelude::rust_2021::*;
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#[macro_use]
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extern crate std;
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// Empty struct.
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struct Empty;
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#[automatically_derived]
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impl ::core::clone::Clone for Empty {
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#[inline]
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fn clone(&self) -> Empty { *self }
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}
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#[automatically_derived]
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impl ::core::marker::Copy for Empty { }
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#[automatically_derived]
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impl ::core::fmt::Debug for Empty {
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fn fmt(&self, f: &mut ::core::fmt::Formatter) -> ::core::fmt::Result {
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::core::fmt::Formatter::write_str(f, "Empty")
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}
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}
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#[automatically_derived]
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impl ::core::default::Default for Empty {
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#[inline]
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fn default() -> Empty { Empty {} }
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}
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#[automatically_derived]
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impl ::core::hash::Hash for Empty {
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fn hash<__H: ::core::hash::Hasher>(&self, state: &mut __H) -> () {}
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}
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#[automatically_derived]
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impl ::core::marker::StructuralPartialEq for Empty { }
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#[automatically_derived]
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impl ::core::cmp::PartialEq for Empty {
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#[inline]
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fn eq(&self, other: &Empty) -> bool { true }
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}
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#[automatically_derived]
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impl ::core::marker::StructuralEq for Empty { }
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#[automatically_derived]
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impl ::core::cmp::Eq for Empty {
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#[inline]
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#[doc(hidden)]
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#[no_coverage]
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fn assert_receiver_is_total_eq(&self) -> () {}
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}
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#[automatically_derived]
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impl ::core::cmp::PartialOrd for Empty {
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#[inline]
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fn partial_cmp(&self, other: &Empty)
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-> ::core::option::Option<::core::cmp::Ordering> {
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::core::option::Option::Some(::core::cmp::Ordering::Equal)
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}
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}
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#[automatically_derived]
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impl ::core::cmp::Ord for Empty {
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#[inline]
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fn cmp(&self, other: &Empty) -> ::core::cmp::Ordering {
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::core::cmp::Ordering::Equal
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}
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}
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// A basic struct.
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struct Point {
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x: u32,
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y: u32,
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}
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#[automatically_derived]
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impl ::core::clone::Clone for Point {
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#[inline]
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fn clone(&self) -> Point {
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let _: ::core::clone::AssertParamIsClone<u32>;
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*self
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}
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}
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#[automatically_derived]
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impl ::core::marker::Copy for Point { }
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#[automatically_derived]
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impl ::core::fmt::Debug for Point {
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fn fmt(&self, f: &mut ::core::fmt::Formatter) -> ::core::fmt::Result {
|
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::core::fmt::Formatter::debug_struct_field2_finish(f, "Point", "x",
|
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&&self.x, "y", &&self.y)
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}
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}
|
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#[automatically_derived]
|
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impl ::core::default::Default for Point {
|
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#[inline]
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fn default() -> Point {
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Point {
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x: ::core::default::Default::default(),
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y: ::core::default::Default::default(),
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}
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}
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}
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#[automatically_derived]
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impl ::core::hash::Hash for Point {
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fn hash<__H: ::core::hash::Hasher>(&self, state: &mut __H) -> () {
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::core::hash::Hash::hash(&self.x, state);
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::core::hash::Hash::hash(&self.y, state)
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}
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}
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#[automatically_derived]
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impl ::core::marker::StructuralPartialEq for Point { }
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#[automatically_derived]
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impl ::core::cmp::PartialEq for Point {
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#[inline]
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fn eq(&self, other: &Point) -> bool {
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self.x == other.x && self.y == other.y
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}
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}
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#[automatically_derived]
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impl ::core::marker::StructuralEq for Point { }
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#[automatically_derived]
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impl ::core::cmp::Eq for Point {
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#[inline]
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#[doc(hidden)]
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#[no_coverage]
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fn assert_receiver_is_total_eq(&self) -> () {
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let _: ::core::cmp::AssertParamIsEq<u32>;
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}
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}
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#[automatically_derived]
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impl ::core::cmp::PartialOrd for Point {
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#[inline]
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fn partial_cmp(&self, other: &Point)
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-> ::core::option::Option<::core::cmp::Ordering> {
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match ::core::cmp::PartialOrd::partial_cmp(&self.x, &other.x) {
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::core::option::Option::Some(::core::cmp::Ordering::Equal) =>
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::core::cmp::PartialOrd::partial_cmp(&self.y, &other.y),
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cmp => cmp,
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}
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}
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}
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#[automatically_derived]
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impl ::core::cmp::Ord for Point {
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#[inline]
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fn cmp(&self, other: &Point) -> ::core::cmp::Ordering {
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match ::core::cmp::Ord::cmp(&self.x, &other.x) {
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::core::cmp::Ordering::Equal =>
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::core::cmp::Ord::cmp(&self.y, &other.y),
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cmp => cmp,
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}
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}
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}
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// A large struct.
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struct Big {
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b1: u32,
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b2: u32,
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b3: u32,
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b4: u32,
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b5: u32,
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b6: u32,
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b7: u32,
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b8: u32,
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}
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#[automatically_derived]
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impl ::core::clone::Clone for Big {
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#[inline]
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fn clone(&self) -> Big {
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Big {
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b1: ::core::clone::Clone::clone(&self.b1),
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b2: ::core::clone::Clone::clone(&self.b2),
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b3: ::core::clone::Clone::clone(&self.b3),
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b4: ::core::clone::Clone::clone(&self.b4),
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b5: ::core::clone::Clone::clone(&self.b5),
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b6: ::core::clone::Clone::clone(&self.b6),
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b7: ::core::clone::Clone::clone(&self.b7),
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b8: ::core::clone::Clone::clone(&self.b8),
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}
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}
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}
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#[automatically_derived]
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impl ::core::fmt::Debug for Big {
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fn fmt(&self, f: &mut ::core::fmt::Formatter) -> ::core::fmt::Result {
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let names: &'static _ =
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&["b1", "b2", "b3", "b4", "b5", "b6", "b7", "b8"];
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let values: &[&dyn ::core::fmt::Debug] =
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&[&&self.b1, &&self.b2, &&self.b3, &&self.b4, &&self.b5,
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&&self.b6, &&self.b7, &&self.b8];
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::core::fmt::Formatter::debug_struct_fields_finish(f, "Big", names,
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values)
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}
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}
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#[automatically_derived]
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impl ::core::default::Default for Big {
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#[inline]
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fn default() -> Big {
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Big {
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b1: ::core::default::Default::default(),
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b2: ::core::default::Default::default(),
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b3: ::core::default::Default::default(),
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b4: ::core::default::Default::default(),
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b5: ::core::default::Default::default(),
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b6: ::core::default::Default::default(),
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b7: ::core::default::Default::default(),
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b8: ::core::default::Default::default(),
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}
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}
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}
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#[automatically_derived]
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impl ::core::hash::Hash for Big {
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fn hash<__H: ::core::hash::Hasher>(&self, state: &mut __H) -> () {
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::core::hash::Hash::hash(&self.b1, state);
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::core::hash::Hash::hash(&self.b2, state);
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::core::hash::Hash::hash(&self.b3, state);
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::core::hash::Hash::hash(&self.b4, state);
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::core::hash::Hash::hash(&self.b5, state);
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::core::hash::Hash::hash(&self.b6, state);
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::core::hash::Hash::hash(&self.b7, state);
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::core::hash::Hash::hash(&self.b8, state)
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}
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}
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#[automatically_derived]
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impl ::core::marker::StructuralPartialEq for Big { }
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#[automatically_derived]
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impl ::core::cmp::PartialEq for Big {
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#[inline]
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fn eq(&self, other: &Big) -> bool {
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self.b1 == other.b1 && self.b2 == other.b2 && self.b3 == other.b3 &&
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self.b4 == other.b4 && self.b5 == other.b5 &&
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self.b6 == other.b6 && self.b7 == other.b7 &&
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self.b8 == other.b8
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}
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}
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#[automatically_derived]
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impl ::core::marker::StructuralEq for Big { }
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#[automatically_derived]
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impl ::core::cmp::Eq for Big {
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#[inline]
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#[doc(hidden)]
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#[no_coverage]
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fn assert_receiver_is_total_eq(&self) -> () {
|
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let _: ::core::cmp::AssertParamIsEq<u32>;
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}
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}
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#[automatically_derived]
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impl ::core::cmp::PartialOrd for Big {
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#[inline]
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fn partial_cmp(&self, other: &Big)
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-> ::core::option::Option<::core::cmp::Ordering> {
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match ::core::cmp::PartialOrd::partial_cmp(&self.b1, &other.b1) {
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::core::option::Option::Some(::core::cmp::Ordering::Equal) =>
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match ::core::cmp::PartialOrd::partial_cmp(&self.b2,
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&other.b2) {
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::core::option::Option::Some(::core::cmp::Ordering::Equal)
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=>
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match ::core::cmp::PartialOrd::partial_cmp(&self.b3,
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&other.b3) {
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::core::option::Option::Some(::core::cmp::Ordering::Equal)
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=>
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match ::core::cmp::PartialOrd::partial_cmp(&self.b4,
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&other.b4) {
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::core::option::Option::Some(::core::cmp::Ordering::Equal)
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=>
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match ::core::cmp::PartialOrd::partial_cmp(&self.b5,
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&other.b5) {
|
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::core::option::Option::Some(::core::cmp::Ordering::Equal)
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=>
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match ::core::cmp::PartialOrd::partial_cmp(&self.b6,
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&other.b6) {
|
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::core::option::Option::Some(::core::cmp::Ordering::Equal)
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=>
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match ::core::cmp::PartialOrd::partial_cmp(&self.b7,
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&other.b7) {
|
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::core::option::Option::Some(::core::cmp::Ordering::Equal)
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=>
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::core::cmp::PartialOrd::partial_cmp(&self.b8, &other.b8),
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cmp => cmp,
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},
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cmp => cmp,
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},
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cmp => cmp,
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},
|
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cmp => cmp,
|
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},
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cmp => cmp,
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},
|
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cmp => cmp,
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},
|
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cmp => cmp,
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}
|
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}
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}
|
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#[automatically_derived]
|
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impl ::core::cmp::Ord for Big {
|
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#[inline]
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fn cmp(&self, other: &Big) -> ::core::cmp::Ordering {
|
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match ::core::cmp::Ord::cmp(&self.b1, &other.b1) {
|
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::core::cmp::Ordering::Equal =>
|
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match ::core::cmp::Ord::cmp(&self.b2, &other.b2) {
|
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::core::cmp::Ordering::Equal =>
|
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match ::core::cmp::Ord::cmp(&self.b3, &other.b3) {
|
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::core::cmp::Ordering::Equal =>
|
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match ::core::cmp::Ord::cmp(&self.b4, &other.b4) {
|
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::core::cmp::Ordering::Equal =>
|
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match ::core::cmp::Ord::cmp(&self.b5, &other.b5) {
|
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::core::cmp::Ordering::Equal =>
|
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match ::core::cmp::Ord::cmp(&self.b6, &other.b6) {
|
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::core::cmp::Ordering::Equal =>
|
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match ::core::cmp::Ord::cmp(&self.b7, &other.b7) {
|
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::core::cmp::Ordering::Equal =>
|
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::core::cmp::Ord::cmp(&self.b8, &other.b8),
|
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cmp => cmp,
|
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},
|
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cmp => cmp,
|
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},
|
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cmp => cmp,
|
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},
|
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cmp => cmp,
|
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},
|
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cmp => cmp,
|
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},
|
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cmp => cmp,
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},
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cmp => cmp,
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}
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}
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}
|
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// A struct with an unsized field. Some derives are not usable in this case.
|
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struct Unsized([u32]);
|
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#[automatically_derived]
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impl ::core::fmt::Debug for Unsized {
|
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fn fmt(&self, f: &mut ::core::fmt::Formatter) -> ::core::fmt::Result {
|
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::core::fmt::Formatter::debug_tuple_field1_finish(f, "Unsized",
|
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&&self.0)
|
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}
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}
|
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#[automatically_derived]
|
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impl ::core::hash::Hash for Unsized {
|
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fn hash<__H: ::core::hash::Hasher>(&self, state: &mut __H) -> () {
|
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::core::hash::Hash::hash(&self.0, state)
|
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}
|
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}
|
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#[automatically_derived]
|
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impl ::core::marker::StructuralPartialEq for Unsized { }
|
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#[automatically_derived]
|
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impl ::core::cmp::PartialEq for Unsized {
|
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#[inline]
|
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fn eq(&self, other: &Unsized) -> bool { self.0 == other.0 }
|
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}
|
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#[automatically_derived]
|
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impl ::core::marker::StructuralEq for Unsized { }
|
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#[automatically_derived]
|
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impl ::core::cmp::Eq for Unsized {
|
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#[inline]
|
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#[doc(hidden)]
|
|
#[no_coverage]
|
|
fn assert_receiver_is_total_eq(&self) -> () {
|
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let _: ::core::cmp::AssertParamIsEq<[u32]>;
|
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}
|
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}
|
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#[automatically_derived]
|
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impl ::core::cmp::PartialOrd for Unsized {
|
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#[inline]
|
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fn partial_cmp(&self, other: &Unsized)
|
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-> ::core::option::Option<::core::cmp::Ordering> {
|
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::core::cmp::PartialOrd::partial_cmp(&self.0, &other.0)
|
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}
|
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}
|
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#[automatically_derived]
|
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impl ::core::cmp::Ord for Unsized {
|
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#[inline]
|
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fn cmp(&self, other: &Unsized) -> ::core::cmp::Ordering {
|
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::core::cmp::Ord::cmp(&self.0, &other.0)
|
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}
|
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}
|
|
|
|
// A packed tuple struct that impls `Copy`.
|
|
#[repr(packed)]
|
|
struct PackedCopy(u32);
|
|
#[automatically_derived]
|
|
impl ::core::clone::Clone for PackedCopy {
|
|
#[inline]
|
|
fn clone(&self) -> PackedCopy {
|
|
let _: ::core::clone::AssertParamIsClone<u32>;
|
|
*self
|
|
}
|
|
}
|
|
#[automatically_derived]
|
|
impl ::core::marker::Copy for PackedCopy { }
|
|
#[automatically_derived]
|
|
impl ::core::fmt::Debug for PackedCopy {
|
|
fn fmt(&self, f: &mut ::core::fmt::Formatter) -> ::core::fmt::Result {
|
|
::core::fmt::Formatter::debug_tuple_field1_finish(f, "PackedCopy",
|
|
&&{ self.0 })
|
|
}
|
|
}
|
|
#[automatically_derived]
|
|
impl ::core::default::Default for PackedCopy {
|
|
#[inline]
|
|
fn default() -> PackedCopy {
|
|
PackedCopy(::core::default::Default::default())
|
|
}
|
|
}
|
|
#[automatically_derived]
|
|
impl ::core::hash::Hash for PackedCopy {
|
|
fn hash<__H: ::core::hash::Hasher>(&self, state: &mut __H) -> () {
|
|
::core::hash::Hash::hash(&{ self.0 }, state)
|
|
}
|
|
}
|
|
#[automatically_derived]
|
|
impl ::core::marker::StructuralPartialEq for PackedCopy { }
|
|
#[automatically_derived]
|
|
impl ::core::cmp::PartialEq for PackedCopy {
|
|
#[inline]
|
|
fn eq(&self, other: &PackedCopy) -> bool { { self.0 } == { other.0 } }
|
|
}
|
|
#[automatically_derived]
|
|
impl ::core::marker::StructuralEq for PackedCopy { }
|
|
#[automatically_derived]
|
|
impl ::core::cmp::Eq for PackedCopy {
|
|
#[inline]
|
|
#[doc(hidden)]
|
|
#[no_coverage]
|
|
fn assert_receiver_is_total_eq(&self) -> () {
|
|
let _: ::core::cmp::AssertParamIsEq<u32>;
|
|
}
|
|
}
|
|
#[automatically_derived]
|
|
impl ::core::cmp::PartialOrd for PackedCopy {
|
|
#[inline]
|
|
fn partial_cmp(&self, other: &PackedCopy)
|
|
-> ::core::option::Option<::core::cmp::Ordering> {
|
|
::core::cmp::PartialOrd::partial_cmp(&{ self.0 }, &{ other.0 })
|
|
}
|
|
}
|
|
#[automatically_derived]
|
|
impl ::core::cmp::Ord for PackedCopy {
|
|
#[inline]
|
|
fn cmp(&self, other: &PackedCopy) -> ::core::cmp::Ordering {
|
|
::core::cmp::Ord::cmp(&{ self.0 }, &{ other.0 })
|
|
}
|
|
}
|
|
|
|
// A packed tuple struct that does not impl `Copy`. Note that the alignment of
|
|
// the field must be 1 for this code to be valid. Otherwise it triggers an
|
|
// error "`#[derive]` can't be used on a `#[repr(packed)]` struct that does not
|
|
// derive Copy (error E0133)" at MIR building time. This is a weird case and
|
|
// it's possible that this struct is not supposed to work, but for now it does.
|
|
#[repr(packed)]
|
|
struct PackedNonCopy(u8);
|
|
#[automatically_derived]
|
|
impl ::core::clone::Clone for PackedNonCopy {
|
|
#[inline]
|
|
fn clone(&self) -> PackedNonCopy {
|
|
PackedNonCopy(::core::clone::Clone::clone(&self.0))
|
|
}
|
|
}
|
|
#[automatically_derived]
|
|
impl ::core::fmt::Debug for PackedNonCopy {
|
|
fn fmt(&self, f: &mut ::core::fmt::Formatter) -> ::core::fmt::Result {
|
|
::core::fmt::Formatter::debug_tuple_field1_finish(f, "PackedNonCopy",
|
|
&&self.0)
|
|
}
|
|
}
|
|
#[automatically_derived]
|
|
impl ::core::default::Default for PackedNonCopy {
|
|
#[inline]
|
|
fn default() -> PackedNonCopy {
|
|
PackedNonCopy(::core::default::Default::default())
|
|
}
|
|
}
|
|
#[automatically_derived]
|
|
impl ::core::hash::Hash for PackedNonCopy {
|
|
fn hash<__H: ::core::hash::Hasher>(&self, state: &mut __H) -> () {
|
|
::core::hash::Hash::hash(&self.0, state)
|
|
}
|
|
}
|
|
#[automatically_derived]
|
|
impl ::core::marker::StructuralPartialEq for PackedNonCopy { }
|
|
#[automatically_derived]
|
|
impl ::core::cmp::PartialEq for PackedNonCopy {
|
|
#[inline]
|
|
fn eq(&self, other: &PackedNonCopy) -> bool { self.0 == other.0 }
|
|
}
|
|
#[automatically_derived]
|
|
impl ::core::marker::StructuralEq for PackedNonCopy { }
|
|
#[automatically_derived]
|
|
impl ::core::cmp::Eq for PackedNonCopy {
|
|
#[inline]
|
|
#[doc(hidden)]
|
|
#[no_coverage]
|
|
fn assert_receiver_is_total_eq(&self) -> () {
|
|
let _: ::core::cmp::AssertParamIsEq<u8>;
|
|
}
|
|
}
|
|
#[automatically_derived]
|
|
impl ::core::cmp::PartialOrd for PackedNonCopy {
|
|
#[inline]
|
|
fn partial_cmp(&self, other: &PackedNonCopy)
|
|
-> ::core::option::Option<::core::cmp::Ordering> {
|
|
::core::cmp::PartialOrd::partial_cmp(&self.0, &other.0)
|
|
}
|
|
}
|
|
#[automatically_derived]
|
|
impl ::core::cmp::Ord for PackedNonCopy {
|
|
#[inline]
|
|
fn cmp(&self, other: &PackedNonCopy) -> ::core::cmp::Ordering {
|
|
::core::cmp::Ord::cmp(&self.0, &other.0)
|
|
}
|
|
}
|
|
|
|
// An empty enum.
|
|
enum Enum0 {}
|
|
#[automatically_derived]
|
|
impl ::core::clone::Clone for Enum0 {
|
|
#[inline]
|
|
fn clone(&self) -> Enum0 { *self }
|
|
}
|
|
#[automatically_derived]
|
|
impl ::core::marker::Copy for Enum0 { }
|
|
#[automatically_derived]
|
|
impl ::core::fmt::Debug for Enum0 {
|
|
fn fmt(&self, f: &mut ::core::fmt::Formatter) -> ::core::fmt::Result {
|
|
unsafe { ::core::intrinsics::unreachable() }
|
|
}
|
|
}
|
|
#[automatically_derived]
|
|
impl ::core::hash::Hash for Enum0 {
|
|
fn hash<__H: ::core::hash::Hasher>(&self, state: &mut __H) -> () {
|
|
unsafe { ::core::intrinsics::unreachable() }
|
|
}
|
|
}
|
|
#[automatically_derived]
|
|
impl ::core::marker::StructuralPartialEq for Enum0 { }
|
|
#[automatically_derived]
|
|
impl ::core::cmp::PartialEq for Enum0 {
|
|
#[inline]
|
|
fn eq(&self, other: &Enum0) -> bool {
|
|
unsafe { ::core::intrinsics::unreachable() }
|
|
}
|
|
}
|
|
#[automatically_derived]
|
|
impl ::core::marker::StructuralEq for Enum0 { }
|
|
#[automatically_derived]
|
|
impl ::core::cmp::Eq for Enum0 {
|
|
#[inline]
|
|
#[doc(hidden)]
|
|
#[no_coverage]
|
|
fn assert_receiver_is_total_eq(&self) -> () {}
|
|
}
|
|
#[automatically_derived]
|
|
impl ::core::cmp::PartialOrd for Enum0 {
|
|
#[inline]
|
|
fn partial_cmp(&self, other: &Enum0)
|
|
-> ::core::option::Option<::core::cmp::Ordering> {
|
|
unsafe { ::core::intrinsics::unreachable() }
|
|
}
|
|
}
|
|
#[automatically_derived]
|
|
impl ::core::cmp::Ord for Enum0 {
|
|
#[inline]
|
|
fn cmp(&self, other: &Enum0) -> ::core::cmp::Ordering {
|
|
unsafe { ::core::intrinsics::unreachable() }
|
|
}
|
|
}
|
|
|
|
// A single-variant enum.
|
|
enum Enum1 {
|
|
Single {
|
|
x: u32,
|
|
},
|
|
}
|
|
#[automatically_derived]
|
|
impl ::core::clone::Clone for Enum1 {
|
|
#[inline]
|
|
fn clone(&self) -> Enum1 {
|
|
match self {
|
|
Enum1::Single { x: __self_0 } =>
|
|
Enum1::Single { x: ::core::clone::Clone::clone(__self_0) },
|
|
}
|
|
}
|
|
}
|
|
#[automatically_derived]
|
|
impl ::core::fmt::Debug for Enum1 {
|
|
fn fmt(&self, f: &mut ::core::fmt::Formatter) -> ::core::fmt::Result {
|
|
match self {
|
|
Enum1::Single { x: __self_0 } =>
|
|
::core::fmt::Formatter::debug_struct_field1_finish(f,
|
|
"Single", "x", &__self_0),
|
|
}
|
|
}
|
|
}
|
|
#[automatically_derived]
|
|
impl ::core::hash::Hash for Enum1 {
|
|
fn hash<__H: ::core::hash::Hasher>(&self, state: &mut __H) -> () {
|
|
match self {
|
|
Enum1::Single { x: __self_0 } =>
|
|
::core::hash::Hash::hash(__self_0, state),
|
|
}
|
|
}
|
|
}
|
|
#[automatically_derived]
|
|
impl ::core::marker::StructuralPartialEq for Enum1 { }
|
|
#[automatically_derived]
|
|
impl ::core::cmp::PartialEq for Enum1 {
|
|
#[inline]
|
|
fn eq(&self, other: &Enum1) -> bool {
|
|
match (self, other) {
|
|
(Enum1::Single { x: __self_0 }, Enum1::Single { x: __arg1_0 }) =>
|
|
*__self_0 == *__arg1_0,
|
|
}
|
|
}
|
|
}
|
|
#[automatically_derived]
|
|
impl ::core::marker::StructuralEq for Enum1 { }
|
|
#[automatically_derived]
|
|
impl ::core::cmp::Eq for Enum1 {
|
|
#[inline]
|
|
#[doc(hidden)]
|
|
#[no_coverage]
|
|
fn assert_receiver_is_total_eq(&self) -> () {
|
|
let _: ::core::cmp::AssertParamIsEq<u32>;
|
|
}
|
|
}
|
|
#[automatically_derived]
|
|
impl ::core::cmp::PartialOrd for Enum1 {
|
|
#[inline]
|
|
fn partial_cmp(&self, other: &Enum1)
|
|
-> ::core::option::Option<::core::cmp::Ordering> {
|
|
match (self, other) {
|
|
(Enum1::Single { x: __self_0 }, Enum1::Single { x: __arg1_0 }) =>
|
|
::core::cmp::PartialOrd::partial_cmp(__self_0, __arg1_0),
|
|
}
|
|
}
|
|
}
|
|
#[automatically_derived]
|
|
impl ::core::cmp::Ord for Enum1 {
|
|
#[inline]
|
|
fn cmp(&self, other: &Enum1) -> ::core::cmp::Ordering {
|
|
match (self, other) {
|
|
(Enum1::Single { x: __self_0 }, Enum1::Single { x: __arg1_0 }) =>
|
|
::core::cmp::Ord::cmp(__self_0, __arg1_0),
|
|
}
|
|
}
|
|
}
|
|
|
|
// A C-like, fieldless enum with a single variant.
|
|
enum Fieldless1 {
|
|
|
|
#[default]
|
|
A,
|
|
}
|
|
#[automatically_derived]
|
|
impl ::core::clone::Clone for Fieldless1 {
|
|
#[inline]
|
|
fn clone(&self) -> Fieldless1 { Fieldless1::A }
|
|
}
|
|
#[automatically_derived]
|
|
impl ::core::fmt::Debug for Fieldless1 {
|
|
fn fmt(&self, f: &mut ::core::fmt::Formatter) -> ::core::fmt::Result {
|
|
::core::fmt::Formatter::write_str(f, "A")
|
|
}
|
|
}
|
|
#[automatically_derived]
|
|
impl ::core::default::Default for Fieldless1 {
|
|
#[inline]
|
|
fn default() -> Fieldless1 { Self::A }
|
|
}
|
|
#[automatically_derived]
|
|
impl ::core::hash::Hash for Fieldless1 {
|
|
fn hash<__H: ::core::hash::Hasher>(&self, state: &mut __H) -> () {}
|
|
}
|
|
#[automatically_derived]
|
|
impl ::core::marker::StructuralPartialEq for Fieldless1 { }
|
|
#[automatically_derived]
|
|
impl ::core::cmp::PartialEq for Fieldless1 {
|
|
#[inline]
|
|
fn eq(&self, other: &Fieldless1) -> bool { true }
|
|
}
|
|
#[automatically_derived]
|
|
impl ::core::marker::StructuralEq for Fieldless1 { }
|
|
#[automatically_derived]
|
|
impl ::core::cmp::Eq for Fieldless1 {
|
|
#[inline]
|
|
#[doc(hidden)]
|
|
#[no_coverage]
|
|
fn assert_receiver_is_total_eq(&self) -> () {}
|
|
}
|
|
#[automatically_derived]
|
|
impl ::core::cmp::PartialOrd for Fieldless1 {
|
|
#[inline]
|
|
fn partial_cmp(&self, other: &Fieldless1)
|
|
-> ::core::option::Option<::core::cmp::Ordering> {
|
|
::core::option::Option::Some(::core::cmp::Ordering::Equal)
|
|
}
|
|
}
|
|
#[automatically_derived]
|
|
impl ::core::cmp::Ord for Fieldless1 {
|
|
#[inline]
|
|
fn cmp(&self, other: &Fieldless1) -> ::core::cmp::Ordering {
|
|
::core::cmp::Ordering::Equal
|
|
}
|
|
}
|
|
|
|
// A C-like, fieldless enum.
|
|
enum Fieldless {
|
|
|
|
#[default]
|
|
A,
|
|
B,
|
|
C,
|
|
}
|
|
#[automatically_derived]
|
|
impl ::core::clone::Clone for Fieldless {
|
|
#[inline]
|
|
fn clone(&self) -> Fieldless { *self }
|
|
}
|
|
#[automatically_derived]
|
|
impl ::core::marker::Copy for Fieldless { }
|
|
#[automatically_derived]
|
|
impl ::core::fmt::Debug for Fieldless {
|
|
fn fmt(&self, f: &mut ::core::fmt::Formatter) -> ::core::fmt::Result {
|
|
::core::fmt::Formatter::write_str(f,
|
|
match self {
|
|
Fieldless::A => "A",
|
|
Fieldless::B => "B",
|
|
Fieldless::C => "C",
|
|
})
|
|
}
|
|
}
|
|
#[automatically_derived]
|
|
impl ::core::default::Default for Fieldless {
|
|
#[inline]
|
|
fn default() -> Fieldless { Self::A }
|
|
}
|
|
#[automatically_derived]
|
|
impl ::core::hash::Hash for Fieldless {
|
|
fn hash<__H: ::core::hash::Hasher>(&self, state: &mut __H) -> () {
|
|
let __self_tag = ::core::intrinsics::discriminant_value(self);
|
|
::core::hash::Hash::hash(&__self_tag, state)
|
|
}
|
|
}
|
|
#[automatically_derived]
|
|
impl ::core::marker::StructuralPartialEq for Fieldless { }
|
|
#[automatically_derived]
|
|
impl ::core::cmp::PartialEq for Fieldless {
|
|
#[inline]
|
|
fn eq(&self, other: &Fieldless) -> bool {
|
|
let __self_tag = ::core::intrinsics::discriminant_value(self);
|
|
let __arg1_tag = ::core::intrinsics::discriminant_value(other);
|
|
__self_tag == __arg1_tag
|
|
}
|
|
}
|
|
#[automatically_derived]
|
|
impl ::core::marker::StructuralEq for Fieldless { }
|
|
#[automatically_derived]
|
|
impl ::core::cmp::Eq for Fieldless {
|
|
#[inline]
|
|
#[doc(hidden)]
|
|
#[no_coverage]
|
|
fn assert_receiver_is_total_eq(&self) -> () {}
|
|
}
|
|
#[automatically_derived]
|
|
impl ::core::cmp::PartialOrd for Fieldless {
|
|
#[inline]
|
|
fn partial_cmp(&self, other: &Fieldless)
|
|
-> ::core::option::Option<::core::cmp::Ordering> {
|
|
let __self_tag = ::core::intrinsics::discriminant_value(self);
|
|
let __arg1_tag = ::core::intrinsics::discriminant_value(other);
|
|
::core::cmp::PartialOrd::partial_cmp(&__self_tag, &__arg1_tag)
|
|
}
|
|
}
|
|
#[automatically_derived]
|
|
impl ::core::cmp::Ord for Fieldless {
|
|
#[inline]
|
|
fn cmp(&self, other: &Fieldless) -> ::core::cmp::Ordering {
|
|
let __self_tag = ::core::intrinsics::discriminant_value(self);
|
|
let __arg1_tag = ::core::intrinsics::discriminant_value(other);
|
|
::core::cmp::Ord::cmp(&__self_tag, &__arg1_tag)
|
|
}
|
|
}
|
|
|
|
// An enum with multiple fieldless and fielded variants.
|
|
enum Mixed {
|
|
|
|
#[default]
|
|
P,
|
|
Q,
|
|
R(u32),
|
|
S {
|
|
d1: Option<u32>,
|
|
d2: Option<i32>,
|
|
},
|
|
}
|
|
#[automatically_derived]
|
|
impl ::core::clone::Clone for Mixed {
|
|
#[inline]
|
|
fn clone(&self) -> Mixed {
|
|
let _: ::core::clone::AssertParamIsClone<u32>;
|
|
let _: ::core::clone::AssertParamIsClone<Option<u32>>;
|
|
let _: ::core::clone::AssertParamIsClone<Option<i32>>;
|
|
*self
|
|
}
|
|
}
|
|
#[automatically_derived]
|
|
impl ::core::marker::Copy for Mixed { }
|
|
#[automatically_derived]
|
|
impl ::core::fmt::Debug for Mixed {
|
|
fn fmt(&self, f: &mut ::core::fmt::Formatter) -> ::core::fmt::Result {
|
|
match self {
|
|
Mixed::P => ::core::fmt::Formatter::write_str(f, "P"),
|
|
Mixed::Q => ::core::fmt::Formatter::write_str(f, "Q"),
|
|
Mixed::R(__self_0) =>
|
|
::core::fmt::Formatter::debug_tuple_field1_finish(f, "R",
|
|
&__self_0),
|
|
Mixed::S { d1: __self_0, d2: __self_1 } =>
|
|
::core::fmt::Formatter::debug_struct_field2_finish(f, "S",
|
|
"d1", &__self_0, "d2", &__self_1),
|
|
}
|
|
}
|
|
}
|
|
#[automatically_derived]
|
|
impl ::core::default::Default for Mixed {
|
|
#[inline]
|
|
fn default() -> Mixed { Self::P }
|
|
}
|
|
#[automatically_derived]
|
|
impl ::core::hash::Hash for Mixed {
|
|
fn hash<__H: ::core::hash::Hasher>(&self, state: &mut __H) -> () {
|
|
let __self_tag = ::core::intrinsics::discriminant_value(self);
|
|
::core::hash::Hash::hash(&__self_tag, state);
|
|
match self {
|
|
Mixed::R(__self_0) => ::core::hash::Hash::hash(__self_0, state),
|
|
Mixed::S { d1: __self_0, d2: __self_1 } => {
|
|
::core::hash::Hash::hash(__self_0, state);
|
|
::core::hash::Hash::hash(__self_1, state)
|
|
}
|
|
_ => {}
|
|
}
|
|
}
|
|
}
|
|
#[automatically_derived]
|
|
impl ::core::marker::StructuralPartialEq for Mixed { }
|
|
#[automatically_derived]
|
|
impl ::core::cmp::PartialEq for Mixed {
|
|
#[inline]
|
|
fn eq(&self, other: &Mixed) -> bool {
|
|
let __self_tag = ::core::intrinsics::discriminant_value(self);
|
|
let __arg1_tag = ::core::intrinsics::discriminant_value(other);
|
|
__self_tag == __arg1_tag &&
|
|
match (self, other) {
|
|
(Mixed::R(__self_0), Mixed::R(__arg1_0)) =>
|
|
*__self_0 == *__arg1_0,
|
|
(Mixed::S { d1: __self_0, d2: __self_1 }, Mixed::S {
|
|
d1: __arg1_0, d2: __arg1_1 }) =>
|
|
*__self_0 == *__arg1_0 && *__self_1 == *__arg1_1,
|
|
_ => true,
|
|
}
|
|
}
|
|
}
|
|
#[automatically_derived]
|
|
impl ::core::marker::StructuralEq for Mixed { }
|
|
#[automatically_derived]
|
|
impl ::core::cmp::Eq for Mixed {
|
|
#[inline]
|
|
#[doc(hidden)]
|
|
#[no_coverage]
|
|
fn assert_receiver_is_total_eq(&self) -> () {
|
|
let _: ::core::cmp::AssertParamIsEq<u32>;
|
|
let _: ::core::cmp::AssertParamIsEq<Option<u32>>;
|
|
let _: ::core::cmp::AssertParamIsEq<Option<i32>>;
|
|
}
|
|
}
|
|
#[automatically_derived]
|
|
impl ::core::cmp::PartialOrd for Mixed {
|
|
#[inline]
|
|
fn partial_cmp(&self, other: &Mixed)
|
|
-> ::core::option::Option<::core::cmp::Ordering> {
|
|
let __self_tag = ::core::intrinsics::discriminant_value(self);
|
|
let __arg1_tag = ::core::intrinsics::discriminant_value(other);
|
|
match (self, other) {
|
|
(Mixed::R(__self_0), Mixed::R(__arg1_0)) =>
|
|
::core::cmp::PartialOrd::partial_cmp(__self_0, __arg1_0),
|
|
(Mixed::S { d1: __self_0, d2: __self_1 }, Mixed::S {
|
|
d1: __arg1_0, d2: __arg1_1 }) =>
|
|
match ::core::cmp::PartialOrd::partial_cmp(__self_0, __arg1_0)
|
|
{
|
|
::core::option::Option::Some(::core::cmp::Ordering::Equal)
|
|
=> ::core::cmp::PartialOrd::partial_cmp(__self_1, __arg1_1),
|
|
cmp => cmp,
|
|
},
|
|
_ =>
|
|
::core::cmp::PartialOrd::partial_cmp(&__self_tag,
|
|
&__arg1_tag),
|
|
}
|
|
}
|
|
}
|
|
#[automatically_derived]
|
|
impl ::core::cmp::Ord for Mixed {
|
|
#[inline]
|
|
fn cmp(&self, other: &Mixed) -> ::core::cmp::Ordering {
|
|
let __self_tag = ::core::intrinsics::discriminant_value(self);
|
|
let __arg1_tag = ::core::intrinsics::discriminant_value(other);
|
|
match ::core::cmp::Ord::cmp(&__self_tag, &__arg1_tag) {
|
|
::core::cmp::Ordering::Equal =>
|
|
match (self, other) {
|
|
(Mixed::R(__self_0), Mixed::R(__arg1_0)) =>
|
|
::core::cmp::Ord::cmp(__self_0, __arg1_0),
|
|
(Mixed::S { d1: __self_0, d2: __self_1 }, Mixed::S {
|
|
d1: __arg1_0, d2: __arg1_1 }) =>
|
|
match ::core::cmp::Ord::cmp(__self_0, __arg1_0) {
|
|
::core::cmp::Ordering::Equal =>
|
|
::core::cmp::Ord::cmp(__self_1, __arg1_1),
|
|
cmp => cmp,
|
|
},
|
|
_ => ::core::cmp::Ordering::Equal,
|
|
},
|
|
cmp => cmp,
|
|
}
|
|
}
|
|
}
|
|
|
|
// An enum with no fieldless variants. Note that `Default` cannot be derived
|
|
// for this enum.
|
|
enum Fielded { X(u32), Y(bool), Z(Option<i32>), }
|
|
#[automatically_derived]
|
|
impl ::core::clone::Clone for Fielded {
|
|
#[inline]
|
|
fn clone(&self) -> Fielded {
|
|
match self {
|
|
Fielded::X(__self_0) =>
|
|
Fielded::X(::core::clone::Clone::clone(__self_0)),
|
|
Fielded::Y(__self_0) =>
|
|
Fielded::Y(::core::clone::Clone::clone(__self_0)),
|
|
Fielded::Z(__self_0) =>
|
|
Fielded::Z(::core::clone::Clone::clone(__self_0)),
|
|
}
|
|
}
|
|
}
|
|
#[automatically_derived]
|
|
impl ::core::fmt::Debug for Fielded {
|
|
fn fmt(&self, f: &mut ::core::fmt::Formatter) -> ::core::fmt::Result {
|
|
match self {
|
|
Fielded::X(__self_0) =>
|
|
::core::fmt::Formatter::debug_tuple_field1_finish(f, "X",
|
|
&__self_0),
|
|
Fielded::Y(__self_0) =>
|
|
::core::fmt::Formatter::debug_tuple_field1_finish(f, "Y",
|
|
&__self_0),
|
|
Fielded::Z(__self_0) =>
|
|
::core::fmt::Formatter::debug_tuple_field1_finish(f, "Z",
|
|
&__self_0),
|
|
}
|
|
}
|
|
}
|
|
#[automatically_derived]
|
|
impl ::core::hash::Hash for Fielded {
|
|
fn hash<__H: ::core::hash::Hasher>(&self, state: &mut __H) -> () {
|
|
let __self_tag = ::core::intrinsics::discriminant_value(self);
|
|
::core::hash::Hash::hash(&__self_tag, state);
|
|
match self {
|
|
Fielded::X(__self_0) => ::core::hash::Hash::hash(__self_0, state),
|
|
Fielded::Y(__self_0) => ::core::hash::Hash::hash(__self_0, state),
|
|
Fielded::Z(__self_0) => ::core::hash::Hash::hash(__self_0, state),
|
|
}
|
|
}
|
|
}
|
|
#[automatically_derived]
|
|
impl ::core::marker::StructuralPartialEq for Fielded { }
|
|
#[automatically_derived]
|
|
impl ::core::cmp::PartialEq for Fielded {
|
|
#[inline]
|
|
fn eq(&self, other: &Fielded) -> bool {
|
|
let __self_tag = ::core::intrinsics::discriminant_value(self);
|
|
let __arg1_tag = ::core::intrinsics::discriminant_value(other);
|
|
__self_tag == __arg1_tag &&
|
|
match (self, other) {
|
|
(Fielded::X(__self_0), Fielded::X(__arg1_0)) =>
|
|
*__self_0 == *__arg1_0,
|
|
(Fielded::Y(__self_0), Fielded::Y(__arg1_0)) =>
|
|
*__self_0 == *__arg1_0,
|
|
(Fielded::Z(__self_0), Fielded::Z(__arg1_0)) =>
|
|
*__self_0 == *__arg1_0,
|
|
_ => unsafe { ::core::intrinsics::unreachable() }
|
|
}
|
|
}
|
|
}
|
|
#[automatically_derived]
|
|
impl ::core::marker::StructuralEq for Fielded { }
|
|
#[automatically_derived]
|
|
impl ::core::cmp::Eq for Fielded {
|
|
#[inline]
|
|
#[doc(hidden)]
|
|
#[no_coverage]
|
|
fn assert_receiver_is_total_eq(&self) -> () {
|
|
let _: ::core::cmp::AssertParamIsEq<u32>;
|
|
let _: ::core::cmp::AssertParamIsEq<bool>;
|
|
let _: ::core::cmp::AssertParamIsEq<Option<i32>>;
|
|
}
|
|
}
|
|
#[automatically_derived]
|
|
impl ::core::cmp::PartialOrd for Fielded {
|
|
#[inline]
|
|
fn partial_cmp(&self, other: &Fielded)
|
|
-> ::core::option::Option<::core::cmp::Ordering> {
|
|
let __self_tag = ::core::intrinsics::discriminant_value(self);
|
|
let __arg1_tag = ::core::intrinsics::discriminant_value(other);
|
|
match (self, other) {
|
|
(Fielded::X(__self_0), Fielded::X(__arg1_0)) =>
|
|
::core::cmp::PartialOrd::partial_cmp(__self_0, __arg1_0),
|
|
(Fielded::Y(__self_0), Fielded::Y(__arg1_0)) =>
|
|
::core::cmp::PartialOrd::partial_cmp(__self_0, __arg1_0),
|
|
(Fielded::Z(__self_0), Fielded::Z(__arg1_0)) =>
|
|
::core::cmp::PartialOrd::partial_cmp(__self_0, __arg1_0),
|
|
_ =>
|
|
::core::cmp::PartialOrd::partial_cmp(&__self_tag,
|
|
&__arg1_tag),
|
|
}
|
|
}
|
|
}
|
|
#[automatically_derived]
|
|
impl ::core::cmp::Ord for Fielded {
|
|
#[inline]
|
|
fn cmp(&self, other: &Fielded) -> ::core::cmp::Ordering {
|
|
let __self_tag = ::core::intrinsics::discriminant_value(self);
|
|
let __arg1_tag = ::core::intrinsics::discriminant_value(other);
|
|
match ::core::cmp::Ord::cmp(&__self_tag, &__arg1_tag) {
|
|
::core::cmp::Ordering::Equal =>
|
|
match (self, other) {
|
|
(Fielded::X(__self_0), Fielded::X(__arg1_0)) =>
|
|
::core::cmp::Ord::cmp(__self_0, __arg1_0),
|
|
(Fielded::Y(__self_0), Fielded::Y(__arg1_0)) =>
|
|
::core::cmp::Ord::cmp(__self_0, __arg1_0),
|
|
(Fielded::Z(__self_0), Fielded::Z(__arg1_0)) =>
|
|
::core::cmp::Ord::cmp(__self_0, __arg1_0),
|
|
_ => unsafe { ::core::intrinsics::unreachable() }
|
|
},
|
|
cmp => cmp,
|
|
}
|
|
}
|
|
}
|
|
|
|
// A union. Most builtin traits are not derivable for unions.
|
|
pub union Union {
|
|
pub b: bool,
|
|
pub u: u32,
|
|
pub i: i32,
|
|
}
|
|
#[automatically_derived]
|
|
impl ::core::clone::Clone for Union {
|
|
#[inline]
|
|
fn clone(&self) -> Union {
|
|
let _: ::core::clone::AssertParamIsCopy<Self>;
|
|
*self
|
|
}
|
|
}
|
|
#[automatically_derived]
|
|
impl ::core::marker::Copy for Union { }
|