repo stringlengths 6 65 | file_url stringlengths 81 311 | file_path stringlengths 6 227 | content stringlengths 0 32.8k | language stringclasses 1
value | license stringclasses 7
values | commit_sha stringlengths 40 40 | retrieved_at stringdate 2026-01-04 15:31:58 2026-01-04 20:25:31 | truncated bool 2
classes |
|---|---|---|---|---|---|---|---|---|
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/clippy/tests/ui/format_push_string_no_std_unfixable.rs | src/tools/clippy/tests/ui/format_push_string_no_std_unfixable.rs | //@no-rustfix
#![warn(clippy::format_push_string)]
#![no_std]
extern crate alloc;
use alloc::format;
use alloc::string::String;
fn foo(string: &mut String) {
string.push_str(&format!("{:?}", 1234));
//~^ format_push_string
}
| rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/clippy/tests/ui/bytecount.rs | src/tools/clippy/tests/ui/bytecount.rs | //@no-rustfix: suggests external crate
#![allow(clippy::needless_borrow, clippy::useless_vec)]
#[deny(clippy::naive_bytecount)]
fn main() {
let x = vec![0_u8; 16];
// naive byte count
let _ = x.iter().filter(|&&a| a == 0).count();
//~^ naive_bytecount
// naive byte count
let _ = (&x[..]).ite... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/clippy/tests/ui/legacy_numeric_constants.rs | src/tools/clippy/tests/ui/legacy_numeric_constants.rs | //@aux-build:proc_macros.rs
//@require-annotations-for-level: WARN
#![allow(clippy::no_effect, deprecated, unused)]
#![allow(clippy::legacy_numeric_constants)] // For imports.
#[macro_use]
extern crate proc_macros;
pub mod a {
pub use std::u128;
}
macro_rules! b {
() => {
mod b {
#[warn(c... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/clippy/tests/ui/as_underscore_unfixable.rs | src/tools/clippy/tests/ui/as_underscore_unfixable.rs | //@no-rustfix
#![warn(clippy::as_underscore)]
fn main() {
// From issue #15282
let f = async || ();
let _: Box<dyn FnOnce() -> _> = Box::new(f) as _;
//~^ as_underscore
let barr = || (|| ());
let _: Box<dyn Fn() -> _> = Box::new(barr) as _;
//~^ as_underscore
}
| rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/clippy/tests/ui/forget_non_drop.rs | src/tools/clippy/tests/ui/forget_non_drop.rs | #![warn(clippy::forget_non_drop)]
use core::mem::forget;
fn forget_generic<T>(t: T) {
// Don't lint
forget(t)
}
fn main() {
struct Foo;
// Lint
forget(Foo);
//~^ forget_non_drop
struct Bar;
impl Drop for Bar {
fn drop(&mut self) {}
}
// Don't lint
forget(Bar);
... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/clippy/tests/ui/unnecessary_literal_unwrap.rs | src/tools/clippy/tests/ui/unnecessary_literal_unwrap.rs | #![warn(clippy::unnecessary_literal_unwrap)]
#![allow(unreachable_code)]
#![allow(
clippy::unnecessary_lazy_evaluations,
clippy::diverging_sub_expression,
clippy::let_unit_value,
clippy::no_effect
)]
fn unwrap_option_some() {
let _val = Some(1).unwrap();
//~^ unnecessary_literal_unwrap
let ... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/clippy/tests/ui/collapsible_match2.rs | src/tools/clippy/tests/ui/collapsible_match2.rs | #![warn(clippy::collapsible_match)]
#![allow(
clippy::needless_return,
clippy::no_effect,
clippy::single_match,
clippy::needless_borrow
)]
fn lint_cases(opt_opt: Option<Option<u32>>, res_opt: Result<Option<u32>, String>) {
// if guards on outer match
{
match res_opt {
Ok(val... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/clippy/tests/ui/path_ends_with_ext.rs | src/tools/clippy/tests/ui/path_ends_with_ext.rs | #![warn(clippy::path_ends_with_ext)]
use std::path::Path;
macro_rules! arg {
() => {
".md"
};
}
fn test(path: &Path) {
path.ends_with(".md");
//~^ path_ends_with_ext
// some "extensions" are allowed by default
path.ends_with(".git");
// most legitimate "dotfiles" are longer than ... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/clippy/tests/ui/infallible_destructuring_match.rs | src/tools/clippy/tests/ui/infallible_destructuring_match.rs | #![feature(exhaustive_patterns, never_type)]
#![allow(dead_code, unreachable_code, unused_variables)]
#![allow(clippy::let_and_return, clippy::uninhabited_references)]
enum SingleVariantEnum {
Variant(i32),
}
struct TupleStruct(i32);
struct NonCopy;
struct TupleStructWithNonCopy(NonCopy);
enum EmptyEnum {}
mac... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/clippy/tests/ui/unused_async.rs | src/tools/clippy/tests/ui/unused_async.rs | #![warn(clippy::unused_async)]
#![allow(incomplete_features)]
use std::future::Future;
use std::pin::Pin;
mod issue10800 {
#![allow(dead_code, unused_must_use, clippy::no_effect)]
use std::future::ready;
async fn async_block_await() {
//~^ unused_async
async {
ready(()).awai... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/clippy/tests/ui/needless_late_init.rs | src/tools/clippy/tests/ui/needless_late_init.rs | //@aux-build:proc_macros.rs
#![allow(
clippy::assign_op_pattern,
clippy::blocks_in_conditions,
clippy::let_and_return,
clippy::let_unit_value,
clippy::nonminimal_bool,
clippy::uninlined_format_args,
clippy::useless_vec
)]
extern crate proc_macros;
use std::collections::{BTreeMap, BTreeSet,... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/clippy/tests/ui/partialeq_ne_impl.rs | src/tools/clippy/tests/ui/partialeq_ne_impl.rs | #![allow(dead_code)]
struct Foo;
impl PartialEq for Foo {
fn eq(&self, _: &Foo) -> bool {
true
}
fn ne(&self, _: &Foo) -> bool {
//~^ partialeq_ne_impl
false
}
}
struct Bar;
impl PartialEq for Bar {
fn eq(&self, _: &Bar) -> bool {
true
}
#[allow(clippy::p... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/clippy/tests/ui/trim_split_whitespace.rs | src/tools/clippy/tests/ui/trim_split_whitespace.rs | #![warn(clippy::trim_split_whitespace)]
#![allow(clippy::let_unit_value)]
struct Custom;
impl Custom {
fn trim(self) -> Self {
self
}
fn split_whitespace(self) {}
}
struct DerefStr(&'static str);
impl std::ops::Deref for DerefStr {
type Target = str;
fn deref(&self) -> &Self::Target {
... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/clippy/tests/ui/iter_without_into_iter.rs | src/tools/clippy/tests/ui/iter_without_into_iter.rs | //@no-rustfix
//@aux-build:proc_macros.rs
#![warn(clippy::iter_without_into_iter)]
#![allow(clippy::needless_lifetimes)]
extern crate proc_macros;
pub struct S1;
impl S1 {
pub fn iter(&self) -> std::slice::Iter<'_, u8> {
//~^ iter_without_into_iter
[].iter()
}
pub fn iter_mut(&mut self) -> ... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/clippy/tests/ui/non_canonical_partial_ord_impl_fully_qual.rs | src/tools/clippy/tests/ui/non_canonical_partial_ord_impl_fully_qual.rs | // This test's filename is... a bit verbose. But it ensures we suggest the correct code when `Ord`
// is not in scope.
#![no_main]
#![no_implicit_prelude]
//@no-rustfix
extern crate std;
use std::cmp::{self, Eq, Ordering, PartialEq, PartialOrd};
use std::option::Option::{self, Some};
use std::todo;
// lint
#[derive(... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/clippy/tests/ui/redundant_field_names.rs | src/tools/clippy/tests/ui/redundant_field_names.rs | //@aux-build:proc_macros.rs
#![warn(clippy::redundant_field_names)]
#![allow(clippy::extra_unused_type_parameters, clippy::no_effect, dead_code, unused_variables)]
#[macro_use]
extern crate proc_macros;
use std::ops::{Range, RangeFrom, RangeInclusive, RangeTo, RangeToInclusive};
mod foo {
pub const BAR: u8 = 0;
... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/clippy/tests/ui/similar_names.rs | src/tools/clippy/tests/ui/similar_names.rs | #![warn(clippy::similar_names)]
#![allow(
unused,
clippy::println_empty_string,
clippy::empty_loop,
clippy::never_loop,
clippy::diverging_sub_expression,
clippy::let_unit_value
)]
struct Foo {
apple: i32,
bpple: i32,
}
fn main() {
let specter: i32;
let spectre: i32;
// ok;... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/clippy/tests/ui/needless_pass_by_ref_mut.rs | src/tools/clippy/tests/ui/needless_pass_by_ref_mut.rs | #![allow(
clippy::if_same_then_else,
clippy::no_effect,
clippy::ptr_arg,
clippy::redundant_closure_call,
clippy::uninlined_format_args
)]
#![warn(clippy::needless_pass_by_ref_mut)]
//@no-rustfix
use std::ptr::NonNull;
fn foo(s: &mut Vec<u32>, b: &u32, x: &mut u32) {
//~^ needless_pass_by_ref_mu... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/clippy/tests/ui/author.rs | src/tools/clippy/tests/ui/author.rs | //@ check-pass
fn main() {
#[clippy::author]
let x: char = 0x45 as char;
}
| rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/clippy/tests/ui/unnecessary_fold.rs | src/tools/clippy/tests/ui/unnecessary_fold.rs | #![allow(dead_code)]
fn is_any(acc: bool, x: usize) -> bool {
acc || x > 2
}
/// Calls which should trigger the `UNNECESSARY_FOLD` lint
fn unnecessary_fold() {
use std::ops::{Add, Mul};
// Can be replaced by .any
let _ = (0..3).fold(false, |acc, x| acc || x > 2);
//~^ unnecessary_fold
// Can... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/clippy/tests/ui/impl_trait_in_params.rs | src/tools/clippy/tests/ui/impl_trait_in_params.rs | #![allow(unused)]
#![warn(clippy::impl_trait_in_params)]
//@no-rustfix: has placeholders
pub trait Trait {}
pub trait AnotherTrait<T> {}
// Should warn
pub fn a(_: impl Trait) {}
//~^ impl_trait_in_params
pub fn c<C: Trait>(_: C, _: impl Trait) {}
//~^ impl_trait_in_params
// Shouldn't warn
pub fn b<B: Trait>(_: B... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/clippy/tests/ui/search_is_some_fixable_none_2021.rs | src/tools/clippy/tests/ui/search_is_some_fixable_none_2021.rs | //@edition: 2021
#![warn(clippy::search_is_some)]
fn main() {
fn ref_bindings() {
let _ = [&(&1, 2), &(&3, 4), &(&5, 4)].iter().find(|(&x, y)| x == *y).is_none();
//~^ search_is_some
let _ = [&(&1, 2), &(&3, 4), &(&5, 4)].iter().find(|&(&x, y)| x == *y).is_none();
//~^ search_is_som... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/clippy/tests/ui/needless_lifetimes.rs | src/tools/clippy/tests/ui/needless_lifetimes.rs | //@aux-build:proc_macros.rs
#![warn(clippy::needless_lifetimes, clippy::elidable_lifetime_names)]
#![allow(
unused,
clippy::boxed_local,
clippy::extra_unused_type_parameters,
clippy::needless_pass_by_value,
clippy::redundant_allocation,
clippy::unnecessary_wraps,
dyn_drop,
clippy::get_f... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/clippy/tests/ui/option_map_or_none.rs | src/tools/clippy/tests/ui/option_map_or_none.rs | #![allow(clippy::bind_instead_of_map)]
fn main() {
let opt = Some(1);
let r: Result<i32, i32> = Ok(1);
let bar = |_| Some(1);
// Check `OPTION_MAP_OR_NONE`.
// Single line case.
let _: Option<i32> = opt.map_or(None, |x| Some(x + 1));
//~^ option_map_or_none
// Multi-line case.
#[ru... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/clippy/tests/ui/format_push_string_unfixable.rs | src/tools/clippy/tests/ui/format_push_string_unfixable.rs | //@no-rustfix
#![warn(clippy::format_push_string)]
mod issue9493 {
pub fn u8vec_to_hex(vector: &Vec<u8>, upper: bool) -> String {
let mut hex = String::with_capacity(vector.len() * 2);
for byte in vector {
hex += &(if upper {
format!("{byte:02X}")
//~^ fo... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/clippy/tests/ui/print_in_format_impl.rs | src/tools/clippy/tests/ui/print_in_format_impl.rs | #![allow(unused, clippy::print_literal, clippy::write_literal)]
#![warn(clippy::print_in_format_impl)]
use std::fmt::{Debug, Display, Error, Formatter};
//@no-rustfix
macro_rules! indirect {
() => {{ println!() }};
}
macro_rules! nested {
($($tt:tt)*) => {
$($tt)*
};
}
struct Foo;
impl Debug for F... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/clippy/tests/ui/unused_rounding.rs | src/tools/clippy/tests/ui/unused_rounding.rs | // FIXME(f16_f128): add tests when math functions are available
#![warn(clippy::unused_rounding)]
fn main() {
let _ = 1f32.ceil();
//~^ unused_rounding
let _ = 1.0f64.floor();
//~^ unused_rounding
let _ = 1.00f32.round();
//~^ unused_rounding
let _ = 2e-54f64.floor();
// issue9866
... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/clippy/tests/ui/cfg_attr_rustfmt.rs | src/tools/clippy/tests/ui/cfg_attr_rustfmt.rs |
#![feature(stmt_expr_attributes)]
#![allow(unused, clippy::no_effect, clippy::unnecessary_operation)]
#![warn(clippy::deprecated_cfg_attr)]
// This doesn't get linted, see known problems
#![cfg_attr(rustfmt, rustfmt_skip)]
#[rustfmt::skip]
trait Foo
{
fn foo(
);
}
fn skip_on_statements() {
#[cfg_attr(rustfmt, ... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/clippy/tests/ui/print_literal.rs | src/tools/clippy/tests/ui/print_literal.rs | #![warn(clippy::print_literal)]
#![allow(clippy::uninlined_format_args, clippy::literal_string_with_formatting_args)]
fn main() {
// these should be fine
print!("Hello");
println!("Hello");
let world = "world";
println!("Hello {}", world);
println!("Hello {world}", world = world);
println!(... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/clippy/tests/ui/reversed_empty_ranges_fixable.rs | src/tools/clippy/tests/ui/reversed_empty_ranges_fixable.rs | #![warn(clippy::reversed_empty_ranges)]
#![allow(clippy::uninlined_format_args)]
const ANSWER: i32 = 42;
fn main() {
// These should be linted:
(42..=21).for_each(|x| println!("{}", x));
//~^ reversed_empty_ranges
let _ = (ANSWER..21).filter(|x| x % 2 == 0).take(10).collect::<Vec<_>>();
//~^ reve... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/clippy/tests/ui/unused_io_amount.rs | src/tools/clippy/tests/ui/unused_io_amount.rs | #![allow(dead_code, clippy::needless_pass_by_ref_mut)]
#![allow(clippy::redundant_pattern_matching)]
#![warn(clippy::unused_io_amount)]
extern crate futures;
use futures::io::{AsyncRead, AsyncReadExt, AsyncWrite, AsyncWriteExt};
use std::io::{self, Read};
fn question_mark<T: io::Read + io::Write>(s: &mut T) -> io::Re... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/clippy/tests/ui/coerce_container_to_any.rs | src/tools/clippy/tests/ui/coerce_container_to_any.rs | #![warn(clippy::coerce_container_to_any)]
use std::any::Any;
fn main() {
let mut x: Box<dyn Any> = Box::new(());
let ref_x = &x;
f(&x);
//~^ coerce_container_to_any
f(ref_x);
//~^ coerce_container_to_any
let _: &dyn Any = &x;
//~^ coerce_container_to_any
let _: &dyn Any = &mut ... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/clippy/tests/ui/ptr_eq_no_std.rs | src/tools/clippy/tests/ui/ptr_eq_no_std.rs | #![warn(clippy::ptr_eq)]
#![no_std]
#![feature(lang_items)]
use core::panic::PanicInfo;
#[lang = "eh_personality"]
extern "C" fn eh_personality() {}
#[panic_handler]
fn panic(info: &PanicInfo) -> ! {
loop {}
}
macro_rules! mac {
($a:expr, $b:expr) => {
$a as *const _ as usize == $b as *const _ as us... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/clippy/tests/ui/manual_is_multiple_of.rs | src/tools/clippy/tests/ui/manual_is_multiple_of.rs | //@aux-build: proc_macros.rs
#![warn(clippy::manual_is_multiple_of)]
fn main() {}
#[clippy::msrv = "1.87"]
fn f(a: u64, b: u64) {
let _ = a % b == 0; //~ manual_is_multiple_of
let _ = (a + 1) % (b + 1) == 0; //~ manual_is_multiple_of
let _ = a % b != 0; //~ manual_is_multiple_of
let _ = (a + 1) % (b +... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/clippy/tests/ui/join_absolute_paths.rs | src/tools/clippy/tests/ui/join_absolute_paths.rs | //@no-rustfix
#![allow(clippy::needless_raw_string_hashes)]
#![warn(clippy::join_absolute_paths)]
use std::path::{Path, PathBuf};
fn main() {
let path = Path::new("/bin");
path.join("/sh");
//~^ join_absolute_paths
let path = Path::new("C:\\Users");
path.join("\\user");
//~^ join_absolute_pa... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/clippy/tests/ui/manual_option_as_slice.rs | src/tools/clippy/tests/ui/manual_option_as_slice.rs | #![warn(clippy::manual_option_as_slice)]
#![allow(clippy::redundant_closure, clippy::unwrap_or_default)]
fn check(x: Option<u32>) {
_ = match x.as_ref() {
//~^ manual_option_as_slice
Some(f) => std::slice::from_ref(f),
None => &[],
};
_ = if let Some(f) = x.as_ref() {
//~^ ... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/clippy/tests/ui/borrow_interior_mutable_const.rs | src/tools/clippy/tests/ui/borrow_interior_mutable_const.rs | //@aux-build:interior_mutable_const.rs
#![deny(clippy::borrow_interior_mutable_const)]
#![allow(
clippy::declare_interior_mutable_const,
clippy::out_of_bounds_indexing,
const_item_interior_mutations,
const_item_mutation,
unconditional_panic
)]
use core::cell::{Cell, UnsafeCell};
use core::ops::{De... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/clippy/tests/ui/unknown_clippy_lints.rs | src/tools/clippy/tests/ui/unknown_clippy_lints.rs | #![warn(clippy::pedantic)]
// Should suggest lowercase
#![allow(clippy::All)]
//~^ ERROR: unknown lint
#![warn(clippy::CMP_OWNED)]
//~^ ERROR: unknown lint
// Should suggest similar clippy lint name
#[warn(clippy::if_not_els)]
//~^ ERROR: unknown lint
#[warn(clippy::UNNecsaRy_cAst)]
//~^ ERROR: unknown lint
#[warn(cli... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/clippy/tests/ui/iter_on_single_items.rs | src/tools/clippy/tests/ui/iter_on_single_items.rs | #![warn(clippy::iter_on_single_items)]
#![allow(clippy::iter_next_slice, clippy::redundant_clone)]
fn array() {
assert_eq!([123].into_iter().next(), Some(123));
//~^ iter_on_single_items
assert_eq!([123].iter_mut().next(), Some(&mut 123));
//~^ iter_on_single_items
assert_eq!([123].iter().next(), S... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/clippy/tests/ui/match_single_binding.rs | src/tools/clippy/tests/ui/match_single_binding.rs | #![warn(clippy::match_single_binding)]
#![allow(
unused,
clippy::let_unit_value,
clippy::no_effect,
clippy::toplevel_ref_arg,
clippy::useless_vec
)]
struct Point {
x: i32,
y: i32,
}
fn coords() -> Point {
Point { x: 1, y: 2 }
}
macro_rules! foo {
($param:expr) => {
match $... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/clippy/tests/ui/manual_bits.rs | src/tools/clippy/tests/ui/manual_bits.rs | #![warn(clippy::manual_bits)]
#![allow(
clippy::no_effect,
clippy::useless_conversion,
path_statements,
unused_must_use,
clippy::unnecessary_operation,
clippy::unnecessary_cast
)]
use std::mem::{size_of, size_of_val};
fn main() {
size_of::<i8>() * 8;
//~^ manual_bits
size_of::<i16>... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/clippy/tests/ui/unwrap_or.rs | src/tools/clippy/tests/ui/unwrap_or.rs | #![warn(clippy::or_fun_call)]
#![allow(clippy::unnecessary_literal_unwrap)]
fn main() {
let s = Some(String::from("test string")).unwrap_or("Fail".to_string()).len();
//~^ or_fun_call
}
fn new_lines() {
let s = Some(String::from("test string")).unwrap_or("Fail".to_string()).len();
//~^ or_fun_call
}
| rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/clippy/tests/ui/mem_replace_macro.rs | src/tools/clippy/tests/ui/mem_replace_macro.rs | //@aux-build:proc_macros.rs
#![warn(clippy::mem_replace_with_default)]
extern crate proc_macros;
use proc_macros::{external, inline_macros};
#[inline_macros]
fn main() {
let s = &mut String::from("foo");
let _ = inline!(std::mem::replace($s, Default::default()));
//~^ mem_replace_with_default
let _ = ... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/clippy/tests/ui/attrs.rs | src/tools/clippy/tests/ui/attrs.rs | #![warn(clippy::inline_always, clippy::deprecated_semver)]
#![allow(clippy::assertions_on_constants)]
#![allow(clippy::missing_docs_in_private_items, clippy::panic, clippy::unreachable)]
#[inline(always)]
//~^ inline_always
fn test_attr_lint() {
assert!(true)
}
#[inline(always)]
fn false_positive_expr() {
unr... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/clippy/tests/ui/derivable_impls_derive_const.rs | src/tools/clippy/tests/ui/derivable_impls_derive_const.rs | #![allow(dead_code)]
#![feature(const_trait_impl)]
#![feature(const_default)]
#![feature(derive_const)]
mod issue15493 {
#[derive(Copy, Clone)]
#[repr(transparent)]
struct Foo(u64);
impl const Default for Foo {
//~^ derivable_impls
fn default() -> Self {
Self(0)
}
... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/clippy/tests/ui/unnecessary_map_on_constructor.rs | src/tools/clippy/tests/ui/unnecessary_map_on_constructor.rs | #![allow(unused)]
#![warn(clippy::unnecessary_map_on_constructor)]
use std::ffi::OsStr;
fn fun(t: i32) -> i32 {
t
}
fn notfun(e: SimpleError) -> SimpleError {
e
}
macro_rules! expands_to_fun {
() => {
fun
};
}
#[derive(Copy, Clone)]
struct SimpleError {}
type SimpleResult = std::result::Res... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/clippy/tests/ui/match_overlapping_arm.rs | src/tools/clippy/tests/ui/match_overlapping_arm.rs | #![warn(clippy::match_overlapping_arm)]
#![allow(clippy::redundant_pattern_matching)]
#![allow(clippy::if_same_then_else, clippy::equatable_if_let, clippy::needless_ifs)]
fn overlapping() {
const FOO: u64 = 2;
match 42 {
0..=10 => println!("0..=10"),
//~^ match_overlapping_arm
0..=11 =... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/clippy/tests/ui/map_identity.rs | src/tools/clippy/tests/ui/map_identity.rs | //@require-annotations-for-level: ERROR
#![warn(clippy::map_identity)]
#![allow(clippy::needless_return, clippy::disallowed_names)]
fn main() {
let x: [u16; 3] = [1, 2, 3];
// should lint
let _: Vec<_> = x.iter().map(not_identity).map(|x| return x).collect();
//~^ map_identity
let _: Vec<_> = x.ite... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/clippy/tests/ui/path_buf_push_overwrite.rs | src/tools/clippy/tests/ui/path_buf_push_overwrite.rs | use std::path::PathBuf;
#[warn(clippy::path_buf_push_overwrite)]
#[allow(clippy::pathbuf_init_then_push)]
fn main() {
let mut x = PathBuf::from("/foo");
x.push("/bar");
//~^ path_buf_push_overwrite
}
| rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/clippy/tests/ui/manual_strip.rs | src/tools/clippy/tests/ui/manual_strip.rs | #![warn(clippy::manual_strip)]
//@no-rustfix
fn main() {
let s = "abc";
if s.starts_with("ab") {
str::to_string(&s["ab".len()..]);
//~^ manual_strip
s["ab".len()..].to_string();
str::to_string(&s[2..]);
s[2..].to_string();
}
if s.ends_with("bc") {
str:... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/clippy/tests/ui/collapsible_match.rs | src/tools/clippy/tests/ui/collapsible_match.rs | #![warn(clippy::collapsible_match)]
#![allow(
clippy::collapsible_if,
clippy::equatable_if_let,
clippy::needless_return,
clippy::no_effect,
clippy::single_match,
clippy::uninlined_format_args,
clippy::let_unit_value
)]
fn lint_cases(opt_opt: Option<Option<u32>>, res_opt: Result<Option<u32>,... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/clippy/tests/ui/useless_asref.rs | src/tools/clippy/tests/ui/useless_asref.rs | #![deny(clippy::useless_asref)]
#![allow(
clippy::explicit_auto_deref,
clippy::uninlined_format_args,
clippy::map_clone,
clippy::needless_pass_by_ref_mut,
clippy::redundant_closure
)]
use std::fmt::Debug;
use std::ops::Deref;
use std::rc::{Rc, Weak as RcWeak};
use std::sync::{Arc, Weak as ArcWeak};... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/clippy/tests/ui/rc_buffer_arc.rs | src/tools/clippy/tests/ui/rc_buffer_arc.rs | #![warn(clippy::rc_buffer)]
use std::ffi::OsString;
use std::path::PathBuf;
use std::sync::{Arc, Mutex};
struct S {
// triggers lint
bad1: Arc<String>,
//~^ rc_buffer
bad2: Arc<PathBuf>,
//~^ rc_buffer
bad3: Arc<Vec<u8>>,
//~^ rc_buffer
bad4: Arc<OsString>,
//~^ rc_buffer
// do... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/clippy/tests/ui/wildcard_imports.rs | src/tools/clippy/tests/ui/wildcard_imports.rs | //@edition:2015
//@aux-build:wildcard_imports_helper.rs
// the 2015 edition here is needed because edition 2018 changed the module system
// (see https://doc.rust-lang.org/edition-guide/rust-2018/path-changes.html) which means the lint
// no longer detects some of the cases starting with Rust 2018.
#![warn(clippy::w... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/clippy/tests/ui/same_name_method.rs | src/tools/clippy/tests/ui/same_name_method.rs | #![warn(clippy::same_name_method)]
#![allow(dead_code, non_camel_case_types)]
trait T1 {
fn foo() {}
}
trait T2 {
fn foo() {}
}
mod should_lint {
mod test_basic_case {
use crate::T1;
struct S;
impl S {
fn foo() {}
//~^ same_name_method
}
... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/clippy/tests/ui/needless_as_bytes.rs | src/tools/clippy/tests/ui/needless_as_bytes.rs | #![warn(clippy::needless_as_bytes)]
#![allow(clippy::const_is_empty)]
#![feature(exact_size_is_empty)]
struct S;
impl S {
fn as_bytes(&self) -> &[u8] {
&[]
}
fn bytes(&self) -> &[u8] {
&[]
}
}
fn main() {
if "some string".as_bytes().is_empty() {
//~^ needless_as_bytes
... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/clippy/tests/ui/result_map_or_into_option.rs | src/tools/clippy/tests/ui/result_map_or_into_option.rs | #![warn(clippy::result_map_or_into_option)]
fn main() {
let opt: Result<u32, &str> = Ok(1);
let _ = opt.map_or(None, Some);
//~^ result_map_or_into_option
let _ = opt.map_or_else(|_| None, Some);
//~^ result_map_or_into_option
#[rustfmt::skip]
let _ = opt.map_or_else(|_| { None }, Some);
... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/clippy/tests/ui/recursive_format_impl.rs | src/tools/clippy/tests/ui/recursive_format_impl.rs | #![warn(clippy::recursive_format_impl)]
#![allow(
clippy::borrow_deref_ref,
clippy::deref_addrof,
clippy::inherent_to_string_shadow_display,
clippy::to_string_in_format_args,
clippy::uninlined_format_args
)]
use std::fmt;
struct A;
impl A {
fn fmt(&self) {
self.to_string();
}
}
tr... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/clippy/tests/ui/fn_to_numeric_cast.rs | src/tools/clippy/tests/ui/fn_to_numeric_cast.rs | //@revisions: r32bit r64bit
//@[r32bit]ignore-bitwidth: 64
//@[r64bit]ignore-bitwidth: 32
//@no-rustfix
#![warn(clippy::fn_to_numeric_cast, clippy::fn_to_numeric_cast_with_truncation)]
#![allow(function_casts_as_integer)]
fn foo() -> String {
String::new()
}
fn test_function_to_numeric_cast() {
let _ = foo as... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/clippy/tests/ui/unneeded_field_pattern.rs | src/tools/clippy/tests/ui/unneeded_field_pattern.rs | //@aux-build:proc_macros.rs
#![warn(clippy::unneeded_field_pattern)]
#![allow(dead_code, unused, clippy::single_match)]
#[macro_use]
extern crate proc_macros;
struct Foo {
a: i32,
b: i32,
c: i32,
}
fn main() {
let f = Foo { a: 0, b: 0, c: 0 };
match f {
Foo { a: _, b: 0, .. } => {},
... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/clippy/tests/ui/char_indices_as_byte_indices.rs | src/tools/clippy/tests/ui/char_indices_as_byte_indices.rs | #![warn(clippy::char_indices_as_byte_indices)]
trait StrExt {
fn use_index(&self, _: usize);
}
impl StrExt for str {
fn use_index(&self, _: usize) {}
}
fn bad(prim: &str, string: String) {
for (idx, _) in prim.chars().enumerate() {
let _ = prim[..idx];
//~^ char_indices_as_byte_indices
... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/clippy/tests/ui/manual_div_ceil_with_feature.rs | src/tools/clippy/tests/ui/manual_div_ceil_with_feature.rs | #![warn(clippy::manual_div_ceil)]
#![feature(int_roundings)]
fn main() {
let x = 7_i32;
let y = 4_i32;
let z = 3_i32;
let z_u: u32 = 11;
// Lint.
let _ = (x + (y - 1)) / y;
//~^ manual_div_ceil
let _ = ((y - 1) + x) / y;
//~^ manual_div_ceil
let _ = (x + y - 1) / y;
//~^ ma... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/clippy/tests/ui/let_underscore_lock.rs | src/tools/clippy/tests/ui/let_underscore_lock.rs | #![warn(clippy::let_underscore_lock)]
extern crate parking_lot;
fn main() {
use parking_lot::lock_api::RawMutex;
use parking_lot::{Mutex, RwLock};
let p_m: Mutex<()> = Mutex::const_new(RawMutex::INIT, ());
let _ = p_m.lock();
//~^ ERROR: non-binding `let` on a synchronization lock
let p_m1 =... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/clippy/tests/ui/redundant_slicing.rs | src/tools/clippy/tests/ui/redundant_slicing.rs | #![allow(unused, clippy::deref_by_slicing)]
#![warn(clippy::redundant_slicing)]
use std::io::Read;
fn main() {
let slice: &[u32] = &[0];
let _ = &slice[..]; // Redundant slice
//
//~^^ redundant_slicing
let v = vec![0];
let _ = &v[..]; // Ok, results in `&[_]`
let _ = &(&*v)[..]; // Outer... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/clippy/tests/ui/transmute_ref_to_ref_no_std.rs | src/tools/clippy/tests/ui/transmute_ref_to_ref_no_std.rs | //@no-rustfix
#![deny(clippy::transmute_ptr_to_ptr)]
#![allow(dead_code, clippy::missing_transmute_annotations)]
#![feature(lang_items)]
#![no_std]
use core::panic::PanicInfo;
#[lang = "eh_personality"]
extern "C" fn eh_personality() {}
#[panic_handler]
fn panic(info: &PanicInfo) -> ! {
loop {}
}
fn main() {
... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/clippy/tests/ui/iter_nth_zero.rs | src/tools/clippy/tests/ui/iter_nth_zero.rs | #![warn(clippy::iter_nth_zero)]
use std::collections::HashSet;
struct Foo;
impl Foo {
fn nth(&self, index: usize) -> usize {
index + 1
}
}
fn main() {
let f = Foo {};
f.nth(0); // lint does not apply here
let mut s = HashSet::new();
s.insert(1);
let _x = s.iter().nth(0);
//~^... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/clippy/tests/ui/zero_offset.rs | src/tools/clippy/tests/ui/zero_offset.rs | #[allow(clippy::borrow_as_ptr, clippy::ptr_offset_by_literal)]
fn main() {
unsafe {
let m = &mut () as *mut ();
m.offset(0);
//~^ zst_offset
m.wrapping_add(0);
//~^ zst_offset
m.sub(0);
//~^ zst_offset
m.wrapping_sub(0);
//~^ zst_offset
... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/clippy/tests/ui/match_ref_pats.rs | src/tools/clippy/tests/ui/match_ref_pats.rs | #![warn(clippy::match_ref_pats)]
#![allow(dead_code, unused_variables)]
#![allow(
clippy::enum_variant_names,
clippy::equatable_if_let,
clippy::uninlined_format_args,
clippy::empty_loop,
clippy::diverging_sub_expression
)]
fn ref_pats() {
{
let v = &Some(0);
match v {
... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/clippy/tests/ui/iter_next_slice.rs | src/tools/clippy/tests/ui/iter_next_slice.rs | #![warn(clippy::iter_next_slice)]
#![allow(clippy::useless_vec)]
fn main() {
// test code goes here
let s = [1, 2, 3];
let v = vec![1, 2, 3];
let _ = s.iter().next();
//~^ iter_next_slice
// Should be replaced by s.first()
let _ = s[2..].iter().next();
//~^ iter_next_slice
// Shou... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/clippy/tests/ui/literal_string_with_formatting_arg.rs | src/tools/clippy/tests/ui/literal_string_with_formatting_arg.rs | #![warn(clippy::literal_string_with_formatting_args)]
#![allow(clippy::unnecessary_literal_unwrap)]
// Regression test for <https://github.com/rust-lang/rust-clippy/issues/13885>.
// It's not supposed to emit the lint in this case (in `assert!` expansion).
fn compiler_macro() {
fn parse(_: &str) -> Result<(), i32>... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/clippy/tests/ui/module_inception.rs | src/tools/clippy/tests/ui/module_inception.rs | #![warn(clippy::module_inception)]
pub mod foo2 {
pub mod bar2 {
pub mod bar2 {
//~^ module_inception
pub mod foo2 {}
}
pub mod foo2 {}
}
pub mod foo2 {
//~^ module_inception
pub mod bar2 {}
}
}
mod foo {
mod bar {
mod bar {... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/clippy/tests/ui/zombie_processes.rs | src/tools/clippy/tests/ui/zombie_processes.rs | #![warn(clippy::zombie_processes)]
#![allow(clippy::if_same_then_else, clippy::ifs_same_cond, clippy::needless_return)]
use std::process::{Child, Command, ExitStatus};
fn main() {
{
// Check that #[expect] works
#[expect(clippy::zombie_processes)]
let mut x = Command::new("").spawn().unwra... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/clippy/tests/ui/reversed_empty_ranges_loops_unfixable.rs | src/tools/clippy/tests/ui/reversed_empty_ranges_loops_unfixable.rs | #![warn(clippy::reversed_empty_ranges)]
#![allow(clippy::uninlined_format_args)]
fn main() {
for i in 5..5 {
//~^ reversed_empty_ranges
println!("{}", i);
}
for i in (5 + 2)..(8 - 1) {
//~^ reversed_empty_ranges
println!("{}", i);
}
}
| rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/clippy/tests/ui/implicit_hasher.rs | src/tools/clippy/tests/ui/implicit_hasher.rs | //@aux-build:proc_macros.rs
#![deny(clippy::implicit_hasher)]
#[macro_use]
extern crate proc_macros;
use std::cmp::Eq;
use std::collections::{HashMap, HashSet};
use std::hash::{BuildHasher, Hash};
pub trait Foo<T>: Sized {
fn make() -> (Self, Self);
}
impl<K: Hash + Eq, V> Foo<i8> for HashMap<K, V> {
//~^ i... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/clippy/tests/ui/init_numbered_fields.rs | src/tools/clippy/tests/ui/init_numbered_fields.rs | #![warn(clippy::init_numbered_fields)]
#[derive(Default)]
struct TupleStruct(u32, u32, u8);
// This shouldn't lint because it's in a macro
macro_rules! tuple_struct_init {
() => {
TupleStruct { 0: 0, 1: 1, 2: 2 }
};
}
fn main() {
let tuple_struct = TupleStruct::default();
// This should lint... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/clippy/tests/ui/trailing_empty_array.rs | src/tools/clippy/tests/ui/trailing_empty_array.rs | #![warn(clippy::trailing_empty_array)]
#![allow(clippy::repr_packed_without_abi)]
// Do lint:
struct RarelyUseful {
//~^ trailing_empty_array
field: i32,
last: [usize; 0],
}
struct OnlyField {
//~^ trailing_empty_array
first_and_last: [usize; 0],
}
struct GenericArrayType<T> {
//~^ trailing_... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/clippy/tests/ui/single_component_path_imports.rs | src/tools/clippy/tests/ui/single_component_path_imports.rs | #![warn(clippy::single_component_path_imports)]
#![allow(unused_imports)]
use core;
use regex;
//~^ single_component_path_imports
use serde as edres;
pub use serde;
use std;
macro_rules! m {
() => {
use regex;
};
}
fn main() {
regex::Regex::new(r"^\d{4}-\d{2}-\d{2}$").unwrap();
// False ... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/clippy/tests/ui/repeat_vec_with_capacity_nostd.rs | src/tools/clippy/tests/ui/repeat_vec_with_capacity_nostd.rs | #![warn(clippy::repeat_vec_with_capacity)]
#![allow(clippy::manual_repeat_n)]
#![no_std]
use core::iter;
extern crate alloc;
use alloc::vec::Vec;
fn nostd() {
let _: Vec<Vec<u8>> = iter::repeat(Vec::with_capacity(42)).take(123).collect();
//~^ repeat_vec_with_capacity
}
| rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/clippy/tests/ui/non_minimal_cfg.rs | src/tools/clippy/tests/ui/non_minimal_cfg.rs | #![allow(unused)]
#[cfg(all(windows))]
//~^ non_minimal_cfg
fn hermit() {}
#[cfg(any(windows))]
//~^ non_minimal_cfg
fn wasi() {}
#[cfg(all(any(unix), all(not(windows))))]
//~^ non_minimal_cfg
//~| non_minimal_cfg
fn the_end() {}
#[cfg(any())]
fn any() {}
fn main() {}
| rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/clippy/tests/ui/issue-7447.rs | src/tools/clippy/tests/ui/issue-7447.rs | use std::borrow::Cow;
use std::collections::BTreeMap;
use std::marker::PhantomData;
use std::sync::Arc;
fn byte_view<'a>(s: &'a ByteView<'_>) -> BTreeMap<&'a str, ByteView<'a>> {
panic!()
}
fn group_entries(s: &()) -> BTreeMap<Cow<'_, str>, Vec<Cow<'_, str>>> {
todo!()
}
struct Mmap;
enum ByteViewBacking<'a... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/clippy/tests/ui/set_contains_or_insert.rs | src/tools/clippy/tests/ui/set_contains_or_insert.rs | #![allow(unused)]
#![allow(clippy::nonminimal_bool)]
#![allow(clippy::needless_borrow)]
#![warn(clippy::set_contains_or_insert)]
use std::collections::{BTreeSet, HashSet};
fn should_warn_hashset() {
let mut set = HashSet::new();
let value = 5;
if !set.contains(&value) {
//~^ set_contains_or_inser... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/clippy/tests/ui/redundant_allocation_fixable.rs | src/tools/clippy/tests/ui/redundant_allocation_fixable.rs | #![allow(clippy::boxed_local, clippy::needless_pass_by_value)]
#![allow(clippy::disallowed_names)]
pub struct MyStruct;
pub struct SubT<T> {
foo: T,
}
pub enum MyEnum {
One,
Two,
}
mod outer_box {
use crate::{MyEnum, MyStruct, SubT};
use std::boxed::Box;
use std::rc::Rc;
use std::sync::A... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/clippy/tests/ui/unsafe_removed_from_name.rs | src/tools/clippy/tests/ui/unsafe_removed_from_name.rs | #![allow(unused_imports)]
#![allow(dead_code)]
#![warn(clippy::unsafe_removed_from_name)]
use std::cell::UnsafeCell as TotallySafeCell;
//~^ unsafe_removed_from_name
use std::cell::UnsafeCell as TotallySafeCellAgain;
//~^ unsafe_removed_from_name
// Shouldn't error
use std::cell::RefCell as ProbablyNotUnsafe;
use s... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/clippy/tests/ui/mem_replace.rs | src/tools/clippy/tests/ui/mem_replace.rs | #![allow(unused, clippy::needless_lifetimes)]
#![warn(
clippy::style,
clippy::mem_replace_option_with_none,
clippy::mem_replace_with_default
)]
use std::collections::{BTreeMap, BTreeSet, BinaryHeap, HashMap, HashSet, LinkedList, VecDeque};
use std::mem;
fn replace_option_with_none() {
let mut an_optio... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/clippy/tests/ui/range.rs | src/tools/clippy/tests/ui/range.rs | #![allow(clippy::useless_vec)]
#[warn(clippy::range_zip_with_len)]
fn main() {
let v1: Vec<u64> = vec![1, 2, 3];
let v2: Vec<u64> = vec![4, 5];
let _x = v1.iter().zip(0..v1.len());
//~^ range_zip_with_len
//~v range_zip_with_len
for (e, i) in v1.iter().zip(0..v1.len()) {
let _: &u64 = e... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/clippy/tests/ui/entry_unfixable.rs | src/tools/clippy/tests/ui/entry_unfixable.rs | #![allow(clippy::needless_pass_by_value, clippy::collapsible_if)]
#![warn(clippy::map_entry)]
use std::collections::HashMap;
use std::hash::Hash;
macro_rules! m {
($e:expr) => {{ $e }};
}
macro_rules! insert {
($map:expr, $key:expr, $val:expr) => {
$map.insert($key, $val)
};
}
mod issue13306 {
... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/clippy/tests/ui/int_plus_one.rs | src/tools/clippy/tests/ui/int_plus_one.rs | #[allow(clippy::no_effect, clippy::unnecessary_operation)]
#[warn(clippy::int_plus_one)]
fn main() {
let x = 1i32;
let y = 0i32;
let _ = x >= y + 1;
//~^ int_plus_one
let _ = y + 1 <= x;
//~^ int_plus_one
let _ = x - 1 >= y;
//~^ int_plus_one
let _ = y <= x - 1;
//~^ int_plus_o... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/clippy/tests/ui/unnecessary_operation.rs | src/tools/clippy/tests/ui/unnecessary_operation.rs | #![allow(
clippy::deref_addrof,
clippy::no_effect,
clippy::uninlined_format_args,
clippy::unnecessary_struct_initialization,
dead_code,
unused
)]
#![warn(clippy::unnecessary_operation)]
use std::fmt::Display;
use std::ops::Shl;
struct Tuple(i32);
struct Struct {
field: i32,
}
enum Enum {
... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/clippy/tests/ui/{literal_string_with_formatting_args}.rs | src/tools/clippy/tests/ui/{literal_string_with_formatting_args}.rs | //@check-pass
// Regression test for <https://github.com/rust-lang/rust-clippy/issues/13885>.
// The `dbg` macro generates a literal with the name of the current file, so
// we need to ensure the lint is not emitted in this case.
// Clippy sets `-Zflatten_format_args=no`, which changes the default behavior of how for... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/clippy/tests/ui/unnecessary_fallible_conversions.rs | src/tools/clippy/tests/ui/unnecessary_fallible_conversions.rs | #![warn(clippy::unnecessary_fallible_conversions)]
fn main() {
// --- TryFromMethod `T::try_from(u)` ---
let _: i64 = 0i32.try_into().unwrap();
//~^ unnecessary_fallible_conversions
let _: i64 = 0i32.try_into().expect("can't happen");
//~^ unnecessary_fallible_conversions
// --- TryFromFunct... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/clippy/tests/ui/clone_on_copy.rs | src/tools/clippy/tests/ui/clone_on_copy.rs | #![warn(clippy::clone_on_copy)]
#![allow(
clippy::redundant_clone,
clippy::deref_addrof,
clippy::no_effect,
clippy::unnecessary_operation,
clippy::toplevel_ref_arg,
clippy::needless_borrow
)]
use std::cell::RefCell;
fn main() {
42.clone();
//~^ clone_on_copy
vec![1].clone(); // ok... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/clippy/tests/ui/len_zero_ranges.rs | src/tools/clippy/tests/ui/len_zero_ranges.rs | #![warn(clippy::len_zero)]
#![allow(unused)]
// Now that `Range(Inclusive)::is_empty` is stable (1.47), we can always suggest this
mod issue_3807 {
fn suggestion_is_fine_range() {
let _ = (0..42).len() == 0;
//~^ len_zero
}
fn suggestion_is_fine_range_inclusive() {
let _ = (0_u8..=... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/clippy/tests/ui/decimal_literal_representation.rs | src/tools/clippy/tests/ui/decimal_literal_representation.rs | #[warn(clippy::decimal_literal_representation)]
#[allow(unused_variables)]
#[rustfmt::skip]
fn main() {
let good = ( // Hex:
127, // 0x7F
256, // 0x100
511, // 0x1FF
2048, // 0x800
4090, // 0xFFA
16_371, // ... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/clippy/tests/ui/doc_suspicious_footnotes.rs | src/tools/clippy/tests/ui/doc_suspicious_footnotes.rs | #![warn(clippy::doc_suspicious_footnotes)]
#![allow(clippy::needless_raw_string_hashes)]
//! This is not a footnote[^1].
//~^ doc_suspicious_footnotes
//!
//! This is not a footnote[^either], but it doesn't warn.
//!
//! This is not a footnote\[^1], but it also doesn't warn.
//!
//! This is not a footnote[^1\], but it ... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/clippy/tests/ui/if_not_else_bittest.rs | src/tools/clippy/tests/ui/if_not_else_bittest.rs | //@ check-pass
#![deny(clippy::if_not_else)]
fn show_permissions(flags: u32) {
if flags & 0x0F00 != 0 {
println!("Has the 0x0F00 permission.");
} else {
println!("The 0x0F00 permission is missing.");
}
}
fn main() {}
| rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/clippy/tests/ui/flat_map_identity.rs | src/tools/clippy/tests/ui/flat_map_identity.rs | #![allow(unused_imports, clippy::needless_return)]
#![warn(clippy::flat_map_identity)]
use std::convert;
fn main() {
let iterator = [[0, 1], [2, 3], [4, 5]].iter();
let _ = iterator.flat_map(|x| x);
//~^ flat_map_identity
let iterator = [[0, 1], [2, 3], [4, 5]].iter();
let _ = iterator.flat_map(c... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/clippy/tests/ui/unnecessary_get_then_check.rs | src/tools/clippy/tests/ui/unnecessary_get_then_check.rs | #![warn(clippy::unnecessary_get_then_check)]
use std::collections::{BTreeMap, BTreeSet, HashMap, HashSet};
fn main() {
let s: HashSet<String> = HashSet::new();
let _ = s.get("a").is_some();
//~^ unnecessary_get_then_check
let _ = s.get("a").is_none();
//~^ unnecessary_get_then_check
let s: Ha... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/clippy/tests/ui/manual_async_fn.rs | src/tools/clippy/tests/ui/manual_async_fn.rs | #![warn(clippy::manual_async_fn)]
#![allow(clippy::needless_pub_self, unused)]
use std::future::Future;
fn fut() -> impl Future<Output = i32> {
//~^ manual_async_fn
async { 42 }
}
#[rustfmt::skip]
fn fut2() ->impl Future<Output = i32> {
//~^ manual_async_fn
async { 42 }
}
#[rustfmt::skip]
fn fut3()-> im... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/clippy/tests/ui/must_use_unit.rs | src/tools/clippy/tests/ui/must_use_unit.rs | //@aux-build:proc_macros.rs
#![warn(clippy::must_use_unit)]
#![allow(clippy::unused_unit)]
extern crate proc_macros;
use proc_macros::external;
#[must_use]
pub fn must_use_default() {}
//~^ must_use_unit
#[must_use]
pub fn must_use_unit() -> () {}
//~^ must_use_unit
#[must_use = "With note"]
pub fn must_use_with_n... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
rust-lang/rust | https://github.com/rust-lang/rust/blob/f8b1d59a81c700cb7aa25cf69e3032b3ce333150/src/tools/clippy/tests/ui/useless_conversion_try.rs | src/tools/clippy/tests/ui/useless_conversion_try.rs | #![deny(clippy::useless_conversion)]
#![allow(
clippy::needless_ifs,
clippy::unnecessary_fallible_conversions,
clippy::manual_unwrap_or_default
)]
fn test_generic<T: Copy>(val: T) -> T {
let _ = T::try_from(val).unwrap();
//~^ useless_conversion
val.try_into().unwrap()
//~^ useless_convers... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
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