#![warn(clippy::rc_clone_in_vec_init)] #![allow(clippy::useless_vec)] use std::sync::{Arc, Mutex}; fn main() {} fn should_warn_simple_case() { let v = vec![Arc::new("x".to_string()); 2]; } fn should_warn_simple_case_with_big_indentation() { if true { let k = 1; dbg!(k); if true { let v = vec![Arc::new("x".to_string()); 2]; } } } fn should_warn_complex_case() { let v = vec![ std::sync::Arc::new(Mutex::new({ let x = 1; dbg!(x); x })); 2 ]; let v1 = vec![ Arc::new(Mutex::new({ let x = 1; dbg!(x); x })); 2 ]; } fn should_not_warn_custom_arc() { #[derive(Clone)] struct Arc; impl Arc { fn new() -> Self { Arc } } let v = vec![Arc::new(); 2]; } fn should_not_warn_vec_from_elem_but_not_arc() { let v = vec![String::new(); 2]; let v1 = vec![1; 2]; let v2 = vec![ Box::new(std::sync::Arc::new({ let y = 3; dbg!(y); y })); 2 ]; } fn should_not_warn_vec_macro_but_not_from_elem() { let v = vec![Arc::new("x".to_string())]; }