rust-clippy/tests/ui/many_single_char_names.rs

82 lines
1.8 KiB
Rust

//@compile-flags: -Zdeduplicate-diagnostics=yes
#![allow(clippy::too_many_arguments, clippy::diverging_sub_expression)]
#![warn(clippy::many_single_char_names)]
fn bla() {
let a: i32;
//~^ ERROR: 5 bindings with single-character names in scope
//~| NOTE: `-D clippy::many-single-char-names` implied by `-D warnings`
//~| ERROR: 6 bindings with single-character names in scope
//~| ERROR: 5 bindings with single-character names in scope
let (b, c, d): (i32, i64, i16);
{
{
let cdefg: i32;
let blar: i32;
}
{
let e: i32;
}
{
let e: i32;
let f: i32;
}
match 5 {
1 => println!(),
e => panic!(),
}
match 5 {
1 => println!(),
_ => panic!(),
}
}
}
fn bindings(a: i32, b: i32, c: i32, d: i32, e: i32, f: i32, g: i32, h: i32) {}
//~^ ERROR: 8 bindings with single-character names in scope
fn bindings2() {
let (a, b, c, d, e, f, g, h): (bool, bool, bool, bool, bool, bool, bool, bool) = unimplemented!();
//~^ ERROR: 8 bindings with single-character names in scope
}
fn shadowing() {
let a = 0i32;
let a = 0i32;
let a = 0i32;
let a = 0i32;
let a = 0i32;
let a = 0i32;
{
let a = 0i32;
}
}
fn patterns() {
enum Z {
A(i32),
B(i32),
C(i32),
D(i32),
E(i32),
F(i32),
}
// These should not trigger a warning, since the pattern bindings are a new scope.
match Z::A(0) {
Z::A(a) => {},
Z::B(b) => {},
Z::C(c) => {},
Z::D(d) => {},
Z::E(e) => {},
Z::F(f) => {},
}
}
#[allow(clippy::many_single_char_names)]
fn issue_3198_allow_works() {
let (a, b, c, d, e) = (0, 0, 0, 0, 0);
}
fn main() {}