98 lines
2.6 KiB
Rust
98 lines
2.6 KiB
Rust
// Copyright 2023 The Fuchsia Authors
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//
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// Licensed under a BSD-style license <LICENSE-BSD>, Apache License, Version 2.0
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// <LICENSE-APACHE or https://www.apache.org/licenses/LICENSE-2.0>, or the MIT
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// license <LICENSE-MIT or https://opensource.org/licenses/MIT>, at your option.
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// This file may not be copied, modified, or distributed except according to
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// those terms.
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// See comment in `include.rs` for why we disable the prelude.
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#![no_implicit_prelude]
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#![allow(warnings)]
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include!("include.rs");
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#[derive(imp::Immutable)]
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struct Zst;
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util_assert_impl_all!(Zst: imp::Immutable);
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#[derive(imp::Immutable)]
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struct One {
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a: bool,
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}
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util_assert_impl_all!(One: imp::Immutable);
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#[derive(imp::Immutable)]
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struct Two {
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a: bool,
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b: Zst,
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}
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util_assert_impl_all!(Two: imp::Immutable);
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#[derive(imp::Immutable)]
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struct Three {
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a: [u8],
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}
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util_assert_impl_all!(Three: imp::Immutable);
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#[derive(imp::Immutable)]
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struct Four<'a> {
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field: &'a imp::UnsafeCell<u8>,
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}
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util_assert_impl_all!(Four<'static>: imp::Immutable);
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#[derive(imp::Immutable)]
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struct TypeParams<'a, T, U, I: imp::Iterator> {
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a: I::Item,
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b: u8,
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c: imp::PhantomData<&'a [::core::primitive::u8]>,
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d: imp::PhantomData<&'static ::core::primitive::str>,
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e: imp::PhantomData<imp::String>,
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f: imp::PhantomData<U>,
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g: T,
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}
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util_assert_impl_all!(TypeParams<'static, (), (), imp::IntoIter<()>>: imp::Immutable);
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util_assert_impl_all!(TypeParams<'static, util::AU16, util::AU16, imp::IntoIter<()>>: imp::Immutable);
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util_assert_impl_all!(TypeParams<'static, util::AU16, imp::UnsafeCell<u8>, imp::IntoIter<()>>: imp::Immutable);
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util_assert_not_impl_any!(TypeParams<'static, imp::UnsafeCell<()>, (), imp::IntoIter<()>>: imp::Immutable);
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util_assert_not_impl_any!(TypeParams<'static, [imp::UnsafeCell<u8>; 0], (), imp::IntoIter<()>>: imp::Immutable);
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util_assert_not_impl_any!(TypeParams<'static, (), (), imp::IntoIter<imp::UnsafeCell<()>>>: imp::Immutable);
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trait Trait {
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type Assoc;
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}
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impl<T> Trait for imp::UnsafeCell<T> {
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type Assoc = T;
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}
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#[derive(imp::Immutable)]
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struct WithAssocType<T: Trait> {
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field: <T as Trait>::Assoc,
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}
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util_assert_impl_all!(WithAssocType<imp::UnsafeCell<u8>>: imp::Immutable);
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// Deriving `Immutable` should work if the struct has bounded parameters.
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#[derive(imp::Immutable)]
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#[repr(C)]
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struct WithParams<'a: 'b, 'b: 'a, T: 'a + 'b + imp::Immutable, const N: usize>(
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[T; N],
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imp::PhantomData<&'a &'b ()>,
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imp::PhantomData<imp::UnsafeCell<()>>,
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&'a imp::UnsafeCell<()>,
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)
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where
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'a: 'b,
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'b: 'a,
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T: 'a + 'b + imp::Immutable;
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util_assert_impl_all!(WithParams<'static, 'static, u8, 42>: imp::Immutable);
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