rust/tests/ui/map_flatten.rs
Jane Lusby 14feb3670f Lint for chaining flatten after map
This change adds a lint to check for instances of `map(..).flatten()`
that can be trivially shortened to `flat_map(..)`

Closes #3196
2018-09-24 14:29:16 -07:00

8 lines
209 B
Rust

#![feature(tool_lints)]
#![warn(clippy::all, clippy::pedantic)]
#![allow(clippy::missing_docs_in_private_items)]
fn main() {
let _: Vec<_> = vec![5_i8; 6].into_iter().map(|x| 0..x).flatten().collect();
}