cc_bindings_from_rs/test/known_traits/copy/copy.rs

// Part of the Crubit project, under the Apache License v2.0 with LLVM
// Exceptions. See /LICENSE for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception

//! This crate is used as a test input for `cc_bindings_from_rs` and the
//! generated C++ bindings are then tested via `default_test.cc`.

/// Test of an explicit impl of a trait: `impl Default for SomeStruct`.
pub mod explicit_impl {
    pub struct SomeStruct(i32);

    impl Clone for SomeStruct {
        fn clone(&self) -> Self {
            Self(self.0)
        }
    }

    impl Copy for SomeStruct {}

    pub fn create_struct(i: i32) -> SomeStruct {
        SomeStruct(i)
    }

    pub fn extract_int(s: SomeStruct) -> i32 {
        s.0
    }
}

/// Test of a derived impl of a trait: `#[derive(Default)]`.
pub mod derived_impl {
    #[derive(Clone, Copy)]
    pub struct SomeStruct(i32);

    pub fn create_struct(i: i32) -> SomeStruct {
        SomeStruct(i)
    }

    pub fn extract_int(s: SomeStruct) -> i32 {
        s.0
    }
}

/// Test of a missing impl of a trait.
pub mod no_impl {
    pub struct SomeStruct(i32);
}