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/writeln_empty_string.rs | src/tools/clippy/tests/ui/writeln_empty_string.rs | #![allow(unused_must_use)]
#![warn(clippy::writeln_empty_string)]
use std::io::Write;
fn main() {
let mut v = Vec::new();
// These should fail
writeln!(v, "");
//~^ writeln_empty_string
let mut suggestion = Vec::new();
writeln!(suggestion, "");
//~^ writeln_empty_string
// These 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/no_effect.rs | src/tools/clippy/tests/ui/no_effect.rs | #![feature(fn_traits, unboxed_closures)]
#![warn(clippy::no_effect_underscore_binding)]
#![allow(
clippy::deref_addrof,
clippy::redundant_field_names,
clippy::uninlined_format_args,
clippy::unnecessary_struct_initialization,
clippy::useless_vec
)]
use std::fmt::Display;
use std::ops::{Neg, Shl};
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/box_collection.rs | src/tools/clippy/tests/ui/box_collection.rs | #![allow(
clippy::boxed_local,
clippy::needless_pass_by_value,
clippy::disallowed_names,
unused
)]
use std::collections::{BTreeMap, BTreeSet, BinaryHeap, HashMap, HashSet, LinkedList, VecDeque};
macro_rules! boxit {
($init:expr, $x:ty) => {
let _: Box<$x> = Box::new($init);
};
}
fn te... | 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_try_fold.rs | src/tools/clippy/tests/ui/manual_try_fold.rs | //@aux-build:proc_macros.rs
#![allow(clippy::unnecessary_fold, unused)]
#![warn(clippy::manual_try_fold)]
#![feature(try_trait_v2)]
//@no-rustfix
use std::ops::{ControlFlow, FromResidual, Try};
#[macro_use]
extern crate proc_macros;
// Test custom `Try` with more than 1 argument
struct NotOption(i32, i32);
impl<R> 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/inconsistent_digit_grouping.rs | src/tools/clippy/tests/ui/inconsistent_digit_grouping.rs | #[warn(clippy::inconsistent_digit_grouping)]
#[deny(clippy::unreadable_literal)]
#[allow(unused_variables, clippy::excessive_precision)]
fn main() {
macro_rules! mac1 {
() => {
1_23_456
};
}
macro_rules! mac2 {
() => {
1_234.5678_f32
};
}
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/result_filter_map.rs | src/tools/clippy/tests/ui/result_filter_map.rs | #![warn(clippy::result_filter_map)]
#![allow(clippy::map_flatten, clippy::unnecessary_map_on_constructor)]
fn odds_out(x: i32) -> Result<i32, ()> {
if x % 2 == 0 { Ok(x) } else { Err(()) }
}
fn main() {
// Unlike the Option version, Result does not have a filter operation => we will check for iterators
//... | 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/pointer_format.rs | src/tools/clippy/tests/ui/pointer_format.rs | #![warn(clippy::pointer_format)]
use core::fmt::Debug;
use core::marker::PhantomData;
#[derive(Debug)]
struct ContainsPointerDeep {
w: WithPointer,
}
struct ManualDebug {
ptr: *const u8,
}
#[derive(Debug)]
struct WithPointer {
len: usize,
ptr: *const u8,
}
impl std::fmt::Debug for ManualDebug {
... | 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/patterns.rs | src/tools/clippy/tests/ui/patterns.rs | //@aux-build:proc_macros.rs
#![allow(clippy::uninlined_format_args, clippy::single_match)]
#[macro_use]
extern crate proc_macros;
fn main() {
let v = Some(true);
let s = [0, 1, 2, 3, 4];
match v {
Some(x) => (),
y @ _ => (),
//~^ redundant_pattern
}
match v {
Some(x... | 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_vec_unfixable.rs | src/tools/clippy/tests/ui/useless_vec_unfixable.rs | //@no-rustfix: no suggestions
#![warn(clippy::useless_vec)]
// Regression test for <https://github.com/rust-lang/rust-clippy/issues/13692>.
fn foo() {
// There should be no suggestion in this case.
let _some_variable = vec![
//~^ useless_vec
1, 2, // i'm here to stay
3, 4, // but this 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/if_then_some_else_none_unfixable.rs | src/tools/clippy/tests/ui/if_then_some_else_none_unfixable.rs | #![warn(clippy::if_then_some_else_none)]
#![allow(clippy::manual_is_multiple_of)]
mod issue15257 {
use std::pin::Pin;
#[derive(Default)]
pub struct Foo {}
pub trait Bar {}
impl Bar for Foo {}
fn pointer_unsized_coercion(i: u32) -> Option<Box<dyn Bar>> {
if i % 2 == 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/redundant_pattern_matching_if_let_true.rs | src/tools/clippy/tests/ui/redundant_pattern_matching_if_let_true.rs | #![warn(clippy::redundant_pattern_matching)]
#![allow(clippy::needless_ifs, clippy::no_effect, clippy::nonminimal_bool)]
macro_rules! condition {
() => {
true
};
}
macro_rules! lettrue {
(if) => {
if let true = true {}
};
(while) => {
while let true = true {}
};
}
fn m... | 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/equatable_if_let_const_cmp.rs | src/tools/clippy/tests/ui/equatable_if_let_const_cmp.rs | #![warn(clippy::equatable_if_let)]
#![allow(clippy::eq_op)]
#![feature(const_trait_impl, const_cmp)]
fn issue15376() {
enum ConstEq {
A,
B,
}
impl const PartialEq for ConstEq {
fn eq(&self, _other: &Self) -> bool {
true
}
}
const C: ConstEq = ConstEq::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/format_push_string.rs | src/tools/clippy/tests/ui/format_push_string.rs | #![warn(clippy::format_push_string)]
fn main() {
use std::fmt::Write;
let mut string = String::new();
string += &format!("{:?}", 1234);
//~^ format_push_string
string.push_str(&format!("{:?}", 5678));
//~^ format_push_string
macro_rules! string {
() => {
String::new()... | 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_unit_fn.rs | src/tools/clippy/tests/ui/map_unit_fn.rs | //@ check-pass
#![allow(unused)]
struct Mappable;
impl Mappable {
pub fn map(&self) {}
}
fn main() {
let m = Mappable {};
m.map();
}
| 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_doc_main.rs | src/tools/clippy/tests/ui/needless_doc_main.rs | /// This is a test for needless `fn main()` in doctests.
///
/// # Examples
///
/// This should lint
/// ```
/// fn main() {
//~^ needless_doctest_main
/// unimplemented!();
/// }
/// ```
///
/// With an explicit return type it should lint too
/// ```edition2015
/// fn main() -> () {
//~^ needless_doctest_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/async_yields_async.rs | src/tools/clippy/tests/ui/async_yields_async.rs | #![warn(clippy::async_yields_async)]
#![allow(clippy::redundant_async_block)]
use core::future::Future;
use core::pin::Pin;
use core::task::{Context, Poll};
struct CustomFutureType;
impl Future for CustomFutureType {
type Output = u8;
fn poll(self: Pin<&mut Self>, _: &mut Context) -> Poll<Self::Output> {
... | 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/only_used_in_recursion.rs | src/tools/clippy/tests/ui/only_used_in_recursion.rs | #![warn(clippy::only_used_in_recursion)]
#![warn(clippy::self_only_used_in_recursion)]
//@no-rustfix
fn _simple(x: u32) -> u32 {
x
}
fn _simple2(x: u32) -> u32 {
_simple(x)
}
fn _one_unused(flag: u32, a: usize) -> usize {
//~^ only_used_in_recursion
if flag == 0 { 0 } else { _one_unused(flag - 1, 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/default_numeric_fallback_i32.rs | src/tools/clippy/tests/ui/default_numeric_fallback_i32.rs | //@aux-build:proc_macros.rs
#![warn(clippy::default_numeric_fallback)]
#![allow(
unused,
clippy::never_loop,
clippy::no_effect,
clippy::unnecessary_operation,
clippy::branches_sharing_code,
clippy::let_unit_value,
clippy::let_with_type_underscore
)]
extern crate proc_macros;
use proc_macro... | 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_skip_next.rs | src/tools/clippy/tests/ui/iter_skip_next.rs | //@aux-build:option_helpers.rs
#![warn(clippy::iter_skip_next)]
#![allow(clippy::disallowed_names)]
#![allow(clippy::iter_nth)]
#![allow(clippy::useless_vec)]
#![allow(clippy::iter_out_of_bounds)]
#![allow(unused_mut, dead_code)]
extern crate option_helpers;
use option_helpers::IteratorFalsePositives;
/// Checks 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/inline_fn_without_body.rs | src/tools/clippy/tests/ui/inline_fn_without_body.rs | #![warn(clippy::inline_fn_without_body)]
#![allow(clippy::inline_always)]
trait Foo {
#[inline]
//~^ inline_fn_without_body
fn default_inline();
#[inline(always)]
//~^ inline_fn_without_body
fn always_inline();
#[inline(never)]
//~^ inline_fn_without_body
fn never_inline();
#... | 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_attribute.rs | src/tools/clippy/tests/ui/unknown_attribute.rs | //@compile-flags: -Zdeduplicate-diagnostics=yes
#[clippy::unknown]
//~^ ERROR: usage of unknown attribute
#[clippy::cognitive_complexity = "1"]
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/never_loop_iterator_reduction.rs | src/tools/clippy/tests/ui/never_loop_iterator_reduction.rs | //@no-rustfix
#![warn(clippy::never_loop)]
fn main() {
// diverging closure: should trigger
[0, 1].into_iter().for_each(|x| {
//~^ never_loop
let _ = x;
panic!("boom");
});
// benign closure: should NOT trigger
[0, 1].into_iter().for_each(|x| {
let _ = x + 1;
}... | 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/explicit_counter_loop.rs | src/tools/clippy/tests/ui/explicit_counter_loop.rs | #![warn(clippy::explicit_counter_loop)]
#![allow(clippy::useless_vec)]
//@no-rustfix: suggestion does not remove the `+= 1`
fn main() {
let mut vec = vec![1, 2, 3, 4];
let mut _index = 0;
for _v in &vec {
//~^ explicit_counter_loop
_index += 1
}
let mut _index = 1;
_index = 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/let_underscore_future.rs | src/tools/clippy/tests/ui/let_underscore_future.rs | use std::future::Future;
//@no-rustfix
async fn some_async_fn() {}
fn sync_side_effects() {}
fn custom() -> impl Future<Output = ()> {
sync_side_effects();
async {}
}
fn do_something_to_future(future: &mut impl Future<Output = ()>) {}
fn main() {
let _ = some_async_fn();
//~^ let_underscore_future
... | 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_ok_err.rs | src/tools/clippy/tests/ui/manual_ok_err.rs | #![warn(clippy::manual_ok_err)]
fn funcall() -> Result<u32, &'static str> {
todo!()
}
fn main() {
let _ = match funcall() {
//~^ manual_ok_err
Ok(v) => Some(v),
Err(_) => None,
};
let _ = match funcall() {
//~^ manual_ok_err
Ok(v) => Some(v),
_v => None... | 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/err_expect.rs | src/tools/clippy/tests/ui/err_expect.rs | #![allow(unused, clippy::unnecessary_literal_unwrap)]
struct MyTypeNonDebug;
#[derive(Debug)]
struct MyTypeDebug;
fn main() {
let test_debug: Result<MyTypeDebug, u32> = Ok(MyTypeDebug);
test_debug.err().expect("Testing debug type");
//~^ err_expect
let test_non_debug: Result<MyTypeNonDebug, u32> = 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/pointers_in_nomem_asm_block.rs | src/tools/clippy/tests/ui/pointers_in_nomem_asm_block.rs | //@ needs-asm-support
#![warn(clippy::pointers_in_nomem_asm_block)]
#![crate_type = "lib"]
#![no_std]
use core::arch::asm;
unsafe fn nomem_bad(p: &i32) {
unsafe {
asm!(
"asdf {p1}, {p2}, {p3}",
p1 = in(reg) p,
//~^ pointers_in_nomem_asm_block
p2 = in(reg) 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/rc_buffer.rs | src/tools/clippy/tests/ui/rc_buffer.rs | #![warn(clippy::rc_buffer)]
use std::cell::RefCell;
use std::ffi::OsString;
use std::path::PathBuf;
use std::rc::Rc;
struct S {
// triggers lint
bad1: Rc<String>,
//~^ rc_buffer
bad2: Rc<PathBuf>,
//~^ rc_buffer
bad3: Rc<Vec<u8>>,
//~^ rc_buffer
bad4: Rc<OsString>,
//~^ rc_buffer
... | 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/const_is_empty.rs | src/tools/clippy/tests/ui/const_is_empty.rs | #![warn(clippy::const_is_empty)]
#![allow(clippy::needless_late_init, unused_must_use)]
fn test_literal() {
if "".is_empty() {
//~^ const_is_empty
}
if "foobar".is_empty() {
//~^ const_is_empty
}
}
fn test_byte_literal() {
if b"".is_empty() {
//~^ const_is_empty
}
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/cast.rs | src/tools/clippy/tests/ui/cast.rs | //@no-rustfix: only some diagnostics have suggestions
#![warn(
clippy::cast_precision_loss,
clippy::cast_possible_truncation,
clippy::cast_sign_loss,
clippy::cast_possible_wrap
)]
#![allow(
clippy::cast_abs_to_unsigned,
clippy::no_effect,
clippy::unnecessary_min_or_max,
clippy::unnecess... | 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_unfixable.rs | src/tools/clippy/tests/ui/unnecessary_literal_unwrap_unfixable.rs | #![warn(clippy::unnecessary_literal_unwrap)]
#![allow(unreachable_code)]
#![allow(clippy::unnecessary_lazy_evaluations, clippy::let_unit_value)]
//@no-rustfix
fn unwrap_option_some() {
let val = Some(1);
let _val2 = val.unwrap();
//~^ unnecessary_literal_unwrap
let _val2 = val.expect("this never happen... | 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/endian_bytes.rs | src/tools/clippy/tests/ui/endian_bytes.rs | #![allow(unused)]
#![allow(clippy::diverging_sub_expression)]
#![no_main]
// FIXME(f16_f128): add these types when `{to_from}_*_bytes` are available
macro_rules! fn_body {
() => {
2u8.to_ne_bytes();
//~^ host_endian_bytes
2i8.to_ne_bytes();
//~^ host_endian_bytes
2u16.to_ne... | 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/default_constructed_unit_structs.rs | src/tools/clippy/tests/ui/default_constructed_unit_structs.rs | #![allow(unused)]
#![warn(clippy::default_constructed_unit_structs)]
use std::marker::PhantomData;
#[derive(Default)]
struct UnitStruct;
impl UnitStruct {
fn new() -> Self {
//should lint
Self::default()
//~^ default_constructed_unit_structs
}
}
#[derive(Default)]
struct TupleStruct(u... | 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/precedence.rs | src/tools/clippy/tests/ui/precedence.rs | #![warn(clippy::precedence)]
#![allow(
unused_must_use,
clippy::no_effect,
clippy::unnecessary_operation,
clippy::clone_on_copy,
clippy::identity_op,
clippy::eq_op
)]
macro_rules! trip {
($a:expr) => {
match $a & 0b1111_1111u8 {
0 => println!("a is zero ({})", $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/missing_const_for_thread_local.rs | src/tools/clippy/tests/ui/missing_const_for_thread_local.rs | #![warn(clippy::missing_const_for_thread_local)]
use std::cell::{Cell, RefCell};
fn main() {
// lint and suggest const
thread_local! {
static BUF_1: RefCell<String> = RefCell::new(String::new());
//~^ missing_const_for_thread_local
}
// don't lint
thread_local! {
static BU... | 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_min_or_max.rs | src/tools/clippy/tests/ui/unnecessary_min_or_max.rs | //@aux-build:external_consts.rs
#![allow(unused)]
#![warn(clippy::unnecessary_min_or_max)]
#![allow(clippy::identity_op)]
extern crate external_consts;
const X: i32 = 1;
fn main() {
// Both are Literals
let _ = (-6_i32).min(9);
//~^ unnecessary_min_or_max
let _ = (-6_i32).max(9);
//~^ unnecessar... | 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-111399.rs | src/tools/clippy/tests/ui/issue-111399.rs | //@ check-pass
#![feature(inherent_associated_types)]
#![allow(incomplete_features)]
// Check that rustc doesn't crash on the trait bound `Self::Ty: std::marker::Freeze`.
pub struct Struct;
impl Struct {
pub type Ty = usize;
pub const CT: Self::Ty = 42;
}
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/extra_unused_type_parameters.rs | src/tools/clippy/tests/ui/extra_unused_type_parameters.rs | //@aux-build:proc_macros.rs
#![allow(unused, clippy::needless_lifetimes)]
#![warn(clippy::extra_unused_type_parameters)]
extern crate proc_macros;
use proc_macros::with_span;
fn unused_ty<T>(x: u8) {
//~^ extra_unused_type_parameters
unimplemented!()
}
fn unused_multi<T, U>(x: u8) {
//~^ extra_unused_ty... | 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/slow_vector_initialization.rs | src/tools/clippy/tests/ui/slow_vector_initialization.rs | #![allow(clippy::useless_vec, clippy::manual_repeat_n)]
use std::iter::repeat;
fn main() {
resize_vector();
extend_vector();
mixed_extend_resize_vector();
from_empty_vec();
}
fn extend_vector() {
// Extend with constant expression
let len = 300;
let mut vec1 = Vec::with_capacity(len);
... | 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_splitn.rs | src/tools/clippy/tests/ui/needless_splitn.rs | //@edition:2018
#![warn(clippy::needless_splitn)]
#![allow(clippy::iter_skip_next, clippy::iter_nth_zero, clippy::manual_split_once)]
extern crate itertools;
#[allow(unused_imports)]
use itertools::Itertools;
fn main() {
let str = "key=value=end";
let _ = str.splitn(2, '=').next();
//~^ needless_splitn
... | 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_flatten.rs | src/tools/clippy/tests/ui/map_flatten.rs | #![warn(clippy::map_flatten)]
//@no-rustfix
// issue #8506, multi-line
#[rustfmt::skip]
fn long_span() {
let _: Option<i32> = Some(1)
.map(|x| {
//~^ map_flatten
if x <= 5 {
Some(x)
} else {
None
}
})
.flatten();
... | 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/unchecked_time_subtraction.rs | src/tools/clippy/tests/ui/unchecked_time_subtraction.rs | #![warn(clippy::unchecked_time_subtraction)]
use std::time::{Duration, Instant};
fn main() {
let _first = Instant::now();
let second = Duration::from_secs(3);
let _ = _first - second;
//~^ unchecked_time_subtraction
let _ = Instant::now() - Duration::from_secs(5);
//~^ unchecked_time_subtrac... | 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/clear_with_drain.rs | src/tools/clippy/tests/ui/clear_with_drain.rs | #![allow(unused)]
#![warn(clippy::clear_with_drain)]
use std::collections::{BinaryHeap, HashMap, HashSet, VecDeque};
fn vec_range() {
// Do not lint because iterator is assigned
let mut v = vec![1, 2, 3];
let iter = v.drain(0..v.len());
// Do not lint because iterator is used
let mut v = vec![1, ... | 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/bit_masks.rs | src/tools/clippy/tests/ui/bit_masks.rs | const THREE_BITS: i64 = 7;
const EVEN_MORE_REDIRECTION: i64 = THREE_BITS;
#[warn(clippy::bad_bit_mask)]
#[allow(
clippy::ineffective_bit_mask,
clippy::identity_op,
clippy::no_effect,
clippy::unnecessary_operation
)]
fn main() {
let x = 5;
x & 0 == 0;
//~^ bad_bit_mask
//~| erasing_op
... | 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/functions_maxlines.rs | src/tools/clippy/tests/ui/functions_maxlines.rs | #![allow(clippy::unused_unit, clippy::missing_safety_doc)]
#![warn(clippy::too_many_lines)]
fn good_lines() {
/* println!("This is good."); */
// println!("This is good.");
/* */ // println!("This is good.");
/* */ // println!("This is good.");
/* */ // println!("This is good.");
/* */ // print... | 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/missing_inline_executable.rs | src/tools/clippy/tests/ui/missing_inline_executable.rs | #![warn(clippy::missing_inline_in_public_items)]
pub fn foo() {}
//~^ missing_inline_in_public_items
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/unnecessary_option_map_or_else.rs | src/tools/clippy/tests/ui/unnecessary_option_map_or_else.rs | #![warn(clippy::unnecessary_option_map_or_else)]
#![allow(
clippy::let_and_return,
clippy::let_unit_value,
clippy::unnecessary_lazy_evaluations,
clippy::unnecessary_literal_unwrap
)]
const fn identity<T>(x: T) -> T {
x
}
const fn double_it(x: i32) -> i32 {
x * 2
}
fn main() {
// Expected ... | 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/self_assignment.rs | src/tools/clippy/tests/ui/self_assignment.rs | #![warn(clippy::self_assignment)]
#![allow(clippy::useless_vec, clippy::needless_pass_by_ref_mut)]
pub struct S<'a> {
a: i32,
b: [i32; 10],
c: Vec<Vec<i32>>,
e: &'a mut i32,
f: &'a mut i32,
}
pub fn positives(mut a: usize, b: &mut u32, mut s: S) {
a = a;
//~^ self_assignment
*b = *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/uninit.rs | src/tools/clippy/tests/ui/uninit.rs | #![feature(stmt_expr_attributes)]
#![allow(clippy::let_unit_value, invalid_value)]
use std::mem::MaybeUninit;
union MyOwnMaybeUninit {
value: u8,
uninit: (),
}
fn main() {
let _: usize = unsafe { MaybeUninit::uninit().assume_init() };
//~^ uninit_assumed_init
// This is OK, because ZSTs do not 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/regex.rs | src/tools/clippy/tests/ui/regex.rs | //@require-annotations-for-level: WARN
#![allow(
unused,
clippy::needless_raw_strings,
clippy::needless_raw_string_hashes,
clippy::needless_borrow,
clippy::needless_borrows_for_generic_args
)]
#![warn(clippy::invalid_regex, clippy::trivial_regex, clippy::regex_creation_in_loops)]
extern crate regex... | 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/nonminimal_bool_methods_unfixable.rs | src/tools/clippy/tests/ui/nonminimal_bool_methods_unfixable.rs | #![warn(clippy::nonminimal_bool)]
//@no-rustfix
fn issue_13436() {
let opt_opt = Some(Some(500));
_ = !opt_opt.is_some_and(|x| !x.is_some_and(|y| y != 1000));
//~^ nonminimal_bool
//~| nonminimal_bool
}
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/as_underscore.rs | src/tools/clippy/tests/ui/as_underscore.rs | #![warn(clippy::as_underscore)]
fn foo(_n: usize) {}
fn main() {
let n: u16 = 256;
foo(n as _);
//~^ as_underscore
let n = 0_u128;
let _n: u8 = n 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/unicode.rs | src/tools/clippy/tests/ui/unicode.rs | #![allow(dead_code)]
#[warn(clippy::invisible_characters)]
fn zero() {
print!("Here >< is a ZWS, and another");
//~^ invisible_characters
print!("This\u{200B}is\u{200B}fine");
print!("Here >< is a SHY, and another");
//~^ invisible_characters
print!("This\u{ad}is\u{ad}fine");
print!("He... | 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_clone.rs | src/tools/clippy/tests/ui/map_clone.rs | #![warn(clippy::map_clone)]
#![allow(
clippy::clone_on_copy,
clippy::iter_cloned_collect,
clippy::many_single_char_names,
clippy::redundant_clone,
clippy::redundant_closure,
clippy::useless_asref,
clippy::useless_vec,
clippy::empty_loop
)]
fn main() {
let _: Vec<i8> = vec![5_i8; 6].... | 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/double_ended_iterator_last.rs | src/tools/clippy/tests/ui/double_ended_iterator_last.rs | #![warn(clippy::double_ended_iterator_last)]
// Typical case
pub fn last_arg(s: &str) -> Option<&str> {
s.split(' ').last() //~ ERROR: called `Iterator::last` on a `DoubleEndedIterator`
}
fn main() {
// General case
struct DeIterator;
impl Iterator for DeIterator {
type Item = ();
fn 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/flat_map_option.rs | src/tools/clippy/tests/ui/flat_map_option.rs | #![warn(clippy::flat_map_option)]
#![allow(clippy::redundant_closure, clippy::unnecessary_filter_map)]
fn main() {
// yay
let c = |x| Some(x);
let _ = [1].iter().flat_map(c);
//~^ flat_map_option
let _ = [1].iter().flat_map(Some);
//~^ flat_map_option
// nay
let _ = [1].iter().flat_map... | 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/min_rust_version_invalid_attr.rs | src/tools/clippy/tests/ui/min_rust_version_invalid_attr.rs | //@compile-flags: -Zdeduplicate-diagnostics=yes
#![feature(custom_inner_attributes)]
#![clippy::msrv = "invalid.version"]
//~^ ERROR: `invalid.version` is not a valid Rust version
fn main() {}
#[clippy::msrv = "invalid.version"]
//~^ ERROR: `invalid.version` is not a valid Rust version
fn outer_attr() {}
mod multip... | 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_struct_initialization.rs | src/tools/clippy/tests/ui/unnecessary_struct_initialization.rs | #![allow(clippy::non_canonical_clone_impl, unused)]
#![warn(clippy::unnecessary_struct_initialization)]
struct S {
f: String,
}
#[derive(Clone, Copy)]
struct T {
f: u32,
}
struct U {
f: u32,
}
impl Clone for U {
fn clone(&self) -> Self {
// Do not lint: `Self` does not implement `Copy`
... | 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/enum_variants.rs | src/tools/clippy/tests/ui/enum_variants.rs | #![warn(clippy::enum_variant_names)]
#![allow(non_camel_case_types, clippy::upper_case_acronyms)]
enum FakeCallType {
CALL,
CREATE,
}
enum FakeCallType2 {
CALL,
CREATELL,
}
enum Foo {
//~^ enum_variant_names
cFoo,
//~^ enum_variant_names
cBar,
cBaz,
}
enum Fooo {
cFoo, // no ... | 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_element_loop.rs | src/tools/clippy/tests/ui/single_element_loop.rs | // Tests from for_loop.rs that don't have suggestions
#![allow(clippy::single_range_in_vec_init)]
#[warn(clippy::single_element_loop)]
fn main() {
let item1 = 2;
for item in &[item1] {
//~^ single_element_loop
dbg!(item);
}
for item in [item1].iter() {
//~^ single_element_loop... | 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_as_ref_deref.rs | src/tools/clippy/tests/ui/option_as_ref_deref.rs | #![allow(unused, clippy::redundant_clone, clippy::useless_vec)]
#![warn(clippy::option_as_ref_deref)]
use std::ffi::{CString, OsString};
use std::ops::{Deref, DerefMut};
use std::path::PathBuf;
fn main() {
let mut opt = Some(String::from("123"));
let _ = opt.clone().as_ref().map(Deref::deref).map(str::len);
... | 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/min_max.rs | src/tools/clippy/tests/ui/min_max.rs | #![allow(clippy::manual_clamp)]
use std::cmp::{max as my_max, max, min as my_min, min};
const LARGE: usize = 3;
struct NotOrd(u64);
impl NotOrd {
fn min(self, x: u64) -> NotOrd {
NotOrd(x)
}
fn max(self, x: u64) -> NotOrd {
NotOrd(x)
}
}
fn main() {
let x = 2usize;
min(1, m... | 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_same_arms2.rs | src/tools/clippy/tests/ui/match_same_arms2.rs | #![warn(clippy::match_same_arms)]
#![allow(
clippy::disallowed_names,
clippy::diverging_sub_expression,
clippy::uninlined_format_args,
clippy::match_single_binding,
clippy::match_like_matches_macro
)]
fn bar<T>(_: T) {}
fn foo() -> bool {
unimplemented!()
}
fn match_same_arms() {
let _ = m... | 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/readonly_write_lock.rs | src/tools/clippy/tests/ui/readonly_write_lock.rs | #![warn(clippy::readonly_write_lock)]
use std::sync::RwLock;
fn mutate_i32(x: &mut i32) {
*x += 1;
}
fn accept_i32(_: i32) {}
fn main() {
let lock = RwLock::new(42);
let lock2 = RwLock::new(1234);
{
let writer = lock.write().unwrap();
//~^ readonly_write_lock
dbg!(&writer);... | 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_ptr_to_ref.rs | src/tools/clippy/tests/ui/transmute_ptr_to_ref.rs | #![warn(clippy::transmute_ptr_to_ref)]
#![allow(
clippy::match_single_binding,
clippy::unnecessary_cast,
clippy::missing_transmute_annotations
)]
fn ptr_to_ref<T, U>(p: *const T, m: *mut T, o: *const U, om: *mut U) {
unsafe {
let _: &T = std::mem::transmute(p);
//~^ transmute_ptr_to_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/entry_btree.rs | src/tools/clippy/tests/ui/entry_btree.rs | #![warn(clippy::map_entry)]
#![allow(dead_code)]
use std::collections::BTreeMap;
fn foo() {}
fn btree_map<K: Eq + Ord + Copy, V: Copy>(m: &mut BTreeMap<K, V>, k: K, v: V) {
// insert then do something, use if let
if !m.contains_key(&k) {
//~^ map_entry
m.insert(k, v);
foo();
}
}
... | 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/type_id_on_box.rs | src/tools/clippy/tests/ui/type_id_on_box.rs | #![warn(clippy::type_id_on_box)]
use std::any::{Any, TypeId};
use std::ops::Deref;
type SomeBox = Box<dyn Any>;
struct BadBox(Box<dyn Any>);
impl Deref for BadBox {
type Target = Box<dyn Any>;
fn deref(&self) -> &Self::Target {
&self.0
}
}
fn existential() -> impl Any {
Box::new(1) as Box<... | 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_filter.rs | src/tools/clippy/tests/ui/manual_filter.rs | #![warn(clippy::manual_filter)]
#![allow(unused_variables, dead_code, clippy::useless_vec)]
fn main() {
match Some(0) {
//~^ manual_filter
None => None,
Some(x) => {
if x > 0 {
None
} else {
Some(x)
}
},
};
... | 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_result_ok.rs | src/tools/clippy/tests/ui/match_result_ok.rs | #![warn(clippy::match_result_ok)]
#![allow(dead_code)]
#![allow(
clippy::boxed_local,
clippy::uninlined_format_args,
clippy::manual_unwrap_or_default,
clippy::manual_unwrap_or
)]
// Checking `if` cases
fn str_to_int(x: &str) -> i32 {
if let Some(y) = x.parse().ok() { y } else { 0 }
//~^ 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/ref_option_ref.rs | src/tools/clippy/tests/ui/ref_option_ref.rs | #![allow(unused)]
#![warn(clippy::ref_option_ref)]
//@no-rustfix
// This lint is not tagged as run-rustfix because automatically
// changing the type of a variable would also means changing
// all usages of this variable to match and This is not handled
// by this lint.
static THRESHOLD: i32 = 10;
static REF_THRESHOLD... | 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/large_stack_arrays.rs | src/tools/clippy/tests/ui/large_stack_arrays.rs | //@aux-build:proc_macros.rs
#![warn(clippy::large_stack_arrays)]
#![allow(clippy::large_enum_variant)]
extern crate proc_macros;
#[derive(Clone, Copy)]
struct S {
pub data: [u64; 32],
}
#[derive(Clone, Copy)]
enum E {
S(S),
T(u32),
}
const STATIC_PROMOTED_LARGE_ARRAY: &[u8; 512001] = &[0; 512001];
const... | 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/builtin_type_shadow.rs | src/tools/clippy/tests/ui/builtin_type_shadow.rs | #![warn(clippy::builtin_type_shadow)]
#![allow(non_camel_case_types)]
fn foo<u32>(a: u32) -> u32 {
//~^ builtin_type_shadow
42 //~ ERROR: mismatched type
}
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/same_length_and_capacity.rs | src/tools/clippy/tests/ui/same_length_and_capacity.rs | #![warn(clippy::same_length_and_capacity)]
fn main() {
let mut my_vec: Vec<i32> = Vec::with_capacity(20);
my_vec.extend([1, 2, 3, 4, 5]);
let (ptr, mut len, cap) = my_vec.into_raw_parts();
len = 8;
let _reconstructed_vec = unsafe { Vec::from_raw_parts(ptr, len, len) };
//~^ same_length_and_cap... | 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_float_methods.rs | src/tools/clippy/tests/ui/manual_float_methods.rs | //@no-rustfix: overlapping suggestions
//@aux-build:proc_macros.rs
#![allow(clippy::needless_ifs, unused)]
#![warn(clippy::manual_is_infinite, clippy::manual_is_finite)]
// FIXME(f16_f128): add tests for these types once constants are available
#[macro_use]
extern crate proc_macros;
fn fn_test() -> f64 {
f64::NE... | 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/default_trait_access.rs | src/tools/clippy/tests/ui/default_trait_access.rs | //@aux-build: proc_macros.rs
#![deny(clippy::default_trait_access)]
#![allow(dead_code, unused_imports)]
extern crate proc_macros;
use proc_macros::with_span;
use std::default::Default as D2;
use std::{default, string};
fn main() {
let s1: String = Default::default();
//~^ default_trait_access
let s2 = ... | 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/methods_unfixable.rs | src/tools/clippy/tests/ui/methods_unfixable.rs | #![warn(clippy::filter_next)]
//@no-rustfix
fn main() {
issue10029();
}
pub fn issue10029() {
let iter = (0..10);
let _ = iter.filter(|_| true).next();
//~^ filter_next
}
| 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/exhaustive_items.rs | src/tools/clippy/tests/ui/exhaustive_items.rs | #![feature(default_field_values)]
#![deny(clippy::exhaustive_enums, clippy::exhaustive_structs)]
#![allow(unused)]
fn main() {
// nop
}
pub mod enums {
pub enum Exhaustive {
//~^ exhaustive_enums
Foo,
Bar,
Baz,
Quux(String),
}
/// Some docs
#[repr(C)]
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/exit2_compile_flag_test.rs | src/tools/clippy/tests/ui/exit2_compile_flag_test.rs | //@compile-flags: --test
#![warn(clippy::exit)]
fn also_not_main() {
std::process::exit(3);
//~^ exit
}
fn main() {
if true {
std::process::exit(2);
};
also_not_main();
std::process::exit(1);
}
| 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_concat.rs | src/tools/clippy/tests/ui/useless_concat.rs | //@aux-build:proc_macros.rs
#![warn(clippy::useless_concat)]
#![allow(clippy::print_literal)]
extern crate proc_macros;
use proc_macros::{external, with_span};
macro_rules! my_concat {
($fmt:literal $(, $e:expr)*) => {
println!(concat!("ERROR: ", $fmt), $($e,)*);
}
}
fn main() {
let x = concat!(... | 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_else_if.rs | src/tools/clippy/tests/ui/collapsible_else_if.rs | #![allow(clippy::assertions_on_constants, clippy::equatable_if_let, clippy::needless_ifs)]
#![warn(clippy::collapsible_else_if)]
#[rustfmt::skip]
fn main() {
let x = "hello";
let y = "world";
// Collapse `else { if .. }` to `else if ..`
if x == "hello" {
print!("Hello ");
} else {
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/borrow_as_ptr_raw_ref.rs | src/tools/clippy/tests/ui/borrow_as_ptr_raw_ref.rs | #![warn(clippy::borrow_as_ptr)]
#![allow(clippy::useless_vec)]
fn a() -> i32 {
0
}
#[clippy::msrv = "1.82"]
fn main() {
let val = 1;
let _p = &val as *const i32;
//~^ borrow_as_ptr
let _p = &0 as *const i32;
let _p = &a() as *const i32;
let vec = vec![1];
let _p = &vec.len() as *const ... | 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/mut_mut_unfixable.rs | src/tools/clippy/tests/ui/mut_mut_unfixable.rs | //@no-rustfix
#![warn(clippy::mut_mut)]
#![allow(unused)]
#![expect(clippy::no_effect)]
//! removing the extra `&mut`s will break the derefs
fn fun(x: &mut &mut u32) -> bool {
//~^ mut_mut
**x > 0
}
fn main() {
let mut x = &mut &mut 1u32;
//~^ mut_mut
{
let mut y = &mut x;
//~^ m... | 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/panic_in_result_fn_assertions.rs | src/tools/clippy/tests/ui/panic_in_result_fn_assertions.rs | #![warn(clippy::panic_in_result_fn)]
#![allow(clippy::uninlined_format_args, clippy::unnecessary_wraps)]
struct A;
impl A {
fn result_with_assert_with_message(x: i32) -> Result<bool, String> // should emit lint
//~^ panic_in_result_fn
{
assert!(x == 5, "wrong argument");
Ok(true)
}
... | 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/cast_raw_slice_pointer_cast_no_std.rs | src/tools/clippy/tests/ui/cast_raw_slice_pointer_cast_no_std.rs | #![warn(clippy::cast_slice_from_raw_parts)]
#![no_std]
#![crate_type = "lib"]
const fn require_raw_slice_ptr<T>(_: *const [T]) {}
fn main() {
let mut arr = [0u8; 1];
let ptr: *const u8 = arr.as_ptr();
let mptr = arr.as_mut_ptr();
let _: *const [u8] = unsafe { core::slice::from_raw_parts(ptr, 1) as *co... | 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/almost_complete_range.rs | src/tools/clippy/tests/ui/almost_complete_range.rs | //@edition:2018
//@aux-build:proc_macros.rs
#![feature(stmt_expr_attributes)]
#![warn(clippy::almost_complete_range)]
#![allow(ellipsis_inclusive_range_patterns)]
#![allow(clippy::needless_parens_on_range_literals)]
#![allow(clippy::double_parens)]
extern crate proc_macros;
use proc_macros::{external, inline_macros};... | 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/extra_unused_lifetimes.rs | src/tools/clippy/tests/ui/extra_unused_lifetimes.rs | //@aux-build:proc_macro_derive.rs
#![allow(
unused,
dead_code,
clippy::needless_lifetimes,
clippy::needless_pass_by_value,
clippy::needless_arbitrary_self_type
)]
#![warn(clippy::extra_unused_lifetimes)]
#[macro_use]
extern crate proc_macro_derive;
fn empty() {}
fn used_lt<'a>(x: &'a u8) {}
fn ... | 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/unconditional_recursion.rs | src/tools/clippy/tests/ui/unconditional_recursion.rs | //@no-rustfix
#![warn(clippy::unconditional_recursion)]
#![allow(
clippy::partialeq_ne_impl,
clippy::default_constructed_unit_structs,
clippy::only_used_in_recursion,
clippy::needless_lifetimes
)]
enum Foo {
A,
B,
}
impl PartialEq for Foo {
fn ne(&self, other: &Self) -> bool {
//~... | 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/error_impl_error.rs | src/tools/clippy/tests/ui/error_impl_error.rs | #![allow(unused)]
#![warn(clippy::error_impl_error)]
#![no_main]
pub mod a {
#[derive(Debug)]
pub struct Error;
//~^ error_impl_error
impl std::fmt::Display for Error {
fn fmt(&self, _: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
todo!()
}
}
impl std::error... | 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_for_each_fixable.rs | src/tools/clippy/tests/ui/needless_for_each_fixable.rs | #![warn(clippy::needless_for_each)]
#![allow(unused)]
#![allow(
clippy::let_unit_value,
clippy::match_single_binding,
clippy::needless_return,
clippy::uninlined_format_args
)]
use std::collections::HashMap;
fn should_lint() {
let v: Vec<i32> = Vec::new();
let mut acc = 0;
v.iter().for_each... | 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_raw_string.rs | src/tools/clippy/tests/ui/needless_raw_string.rs | #![allow(clippy::needless_raw_string_hashes, clippy::no_effect, unused)]
#![warn(clippy::needless_raw_strings)]
fn main() {
r#"aaa"#;
//~^ needless_raw_strings
r#""aaa""#;
r#"\s"#;
br#"aaa"#;
//~^ needless_raw_strings
br#""aaa""#;
br#"\s"#;
cr#"aaa"#;
//~^ needless_raw_strings
... | 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/cast_slice_different_sizes.rs | src/tools/clippy/tests/ui/cast_slice_different_sizes.rs | //@no-rustfix: overlapping suggestions
#![allow(clippy::let_unit_value, clippy::unnecessary_cast)]
fn main() {
let x: [i32; 3] = [1_i32, 2, 3];
let r_x = &x;
// Check casting through multiple bindings
// Because it's separate, it does not check the cast back to something of the same size
let a = r_... | 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/drop_non_drop.rs | src/tools/clippy/tests/ui/drop_non_drop.rs | #![warn(clippy::drop_non_drop)]
use core::mem::drop;
fn make_result<T>(t: T) -> Result<T, ()> {
Ok(t)
}
#[must_use]
fn must_use<T>(t: T) -> T {
t
}
fn drop_generic<T>(t: T) {
// Don't lint
drop(t)
}
fn main() {
struct Foo;
// Lint
drop(Foo);
//~^ drop_non_drop
// Don't 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/float_arithmetic.rs | src/tools/clippy/tests/ui/float_arithmetic.rs | #![warn(clippy::arithmetic_side_effects, clippy::float_arithmetic)]
#![allow(
unused,
clippy::shadow_reuse,
clippy::shadow_unrelated,
clippy::no_effect,
clippy::unnecessary_operation,
clippy::op_ref
)]
#[rustfmt::skip]
fn main() {
let mut f = 1.0f32;
f * 2.0;
//~^ float_arithmetic
... | 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/disallowed_script_idents.rs | src/tools/clippy/tests/ui/disallowed_script_idents.rs | #![deny(clippy::disallowed_script_idents)]
#![allow(dead_code)]
fn main() {
// OK, latin is allowed.
let counter = 10;
// OK, it's still latin.
let zähler = 10;
// Cyrillic is not allowed by default.
let счётчик = 10;
//~^ disallowed_script_idents
// Same for japanese.
let カウンタ = ... | 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/missing_asserts_for_indexing_unfixable.rs | src/tools/clippy/tests/ui/missing_asserts_for_indexing_unfixable.rs | #![allow(unused)]
#![warn(clippy::missing_asserts_for_indexing)]
fn sum(v: &[u8]) -> u8 {
v[0] + v[1] + v[2] + v[3] + v[4]
//~^ missing_asserts_for_indexing
}
fn subslice(v: &[u8]) {
let _ = v[0];
//~^ missing_asserts_for_indexing
let _ = v[1..4];
}
fn variables(v: &[u8]) -> u8 {
let a = v[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/manual_abs_diff.rs | src/tools/clippy/tests/ui/manual_abs_diff.rs | #![warn(clippy::manual_abs_diff)]
use std::time::Duration;
fn main() {
let a: usize = 5;
let b: usize = 3;
let c: usize = 8;
let d: usize = 11;
let _ = if a > b { a - b } else { b - a };
//~^ manual_abs_diff
let _ = if a < b { b - a } else { a - b };
//~^ manual_abs_diff
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/double_comparison.rs | src/tools/clippy/tests/ui/double_comparison.rs | #![allow(clippy::needless_ifs)]
fn main() {
let x = 1;
let y = 2;
if x == y || x < y {
//~^ double_comparisons
// do something
}
if x < y || x == y {
//~^ double_comparisons
// do something
}
if x == y || x > y {
//~^ double_comparisons
// 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/assign_ops.rs | src/tools/clippy/tests/ui/assign_ops.rs | #![allow(clippy::useless_vec)]
#![warn(clippy::assign_op_pattern)]
#![feature(const_ops)]
#![feature(const_trait_impl)]
use std::num::Wrapping;
use std::ops::{Mul, MulAssign};
fn main() {
let mut a = 5;
a = a + 1;
//~^ assign_op_pattern
a = 1 + a;
//~^ assign_op_pattern
a = a - 1;
//~^ ass... | 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_first_then_check.rs | src/tools/clippy/tests/ui/unnecessary_first_then_check.rs | #![warn(clippy::unnecessary_first_then_check)]
#![allow(clippy::useless_vec, clippy::const_is_empty)]
fn main() {
let s = [1, 2, 3];
let _: bool = s.first().is_some();
//~^ unnecessary_first_then_check
let _: bool = s.first().is_none();
//~^ unnecessary_first_then_check
let v = vec![1, 2, 3];
... | 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/large_futures.rs | src/tools/clippy/tests/ui/large_futures.rs | #![allow(
clippy::future_not_send,
clippy::manual_async_fn,
clippy::never_loop,
clippy::uninlined_format_args
)]
#![warn(clippy::large_futures)]
async fn big_fut(_arg: [u8; 1024 * 16]) {}
async fn wait() {
let f = async {
big_fut([0u8; 1024 * 16]).await;
//~^ large_futures
};
... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
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