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/op_ref.rs | src/tools/clippy/tests/ui/op_ref.rs | #![allow(unused_variables, clippy::disallowed_names)]
#![warn(clippy::op_ref)]
use std::collections::HashSet;
use std::ops::{BitAnd, Mul};
fn main() {
let tracked_fds: HashSet<i32> = HashSet::new();
let new_fds = HashSet::new();
let unwanted = &tracked_fds - &new_fds;
let foo = &5 - &6;
//~^ op_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/result_unit_error_no_std.rs | src/tools/clippy/tests/ui/result_unit_error_no_std.rs | #![feature(lang_items, libc)]
#![no_std]
#![no_main]
#![warn(clippy::result_unit_err)]
#[clippy::msrv = "1.80"]
pub fn returns_unit_error_no_lint() -> Result<u32, ()> {
Err(())
}
#[clippy::msrv = "1.81"]
pub fn returns_unit_error_lint() -> Result<u32, ()> {
//~^ result_unit_err
Err(())
}
#[unsafe(no_mang... | 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_unsafety_doc.rs | src/tools/clippy/tests/ui/unnecessary_unsafety_doc.rs | //@aux-build:proc_macros.rs
#![allow(clippy::let_unit_value, clippy::needless_pass_by_ref_mut)]
#![warn(clippy::unnecessary_safety_doc)]
extern crate proc_macros;
use proc_macros::external;
/// This is has no safety section, and does not need one either
pub fn destroy_the_planet() {
unimplemented!();
}
/// This... | 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.rs | src/tools/clippy/tests/ui/equatable_if_let.rs | //@aux-build:proc_macros.rs
#![allow(clippy::derive_partial_eq_without_eq, clippy::needless_ifs)]
#![warn(clippy::equatable_if_let)]
use proc_macros::{external, inline_macros};
use std::cmp::Ordering;
#[derive(PartialEq)]
enum Enum {
TupleVariant(i32, u64),
RecordVariant { a: i64, b: u32 },
UnitVariant,
... | 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/filter_map_identity.rs | src/tools/clippy/tests/ui/filter_map_identity.rs | #![allow(unused_imports, clippy::needless_return, clippy::useless_vec)]
#![warn(clippy::filter_map_identity)]
#![feature(stmt_expr_attributes)]
use std::option::Option;
struct NonCopy;
use std::convert::identity;
fn non_copy_vec() -> Vec<Option<NonCopy>> {
todo!()
}
fn copy_vec<T: Copy>() -> Vec<Option<T>> {
... | 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_type_cast.rs | src/tools/clippy/tests/ui/needless_type_cast.rs | #![warn(clippy::needless_type_cast)]
#![allow(clippy::no_effect, clippy::unnecessary_cast, unused)]
fn takes_i32(x: i32) -> i32 {
x
}
fn generic<T>(x: T) -> T {
x
}
fn returns_u8() -> u8 {
10
}
fn main() {
let a: u8 = 10;
//~^ needless_type_cast
let _ = a as i32 + 5;
let _ = a as i32 * 2... | 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/infinite_iter.rs | src/tools/clippy/tests/ui/infinite_iter.rs | #![allow(clippy::double_ended_iterator_last)]
use std::iter::repeat;
fn square_is_lower_64(x: &u32) -> bool {
x * x < 64
}
#[allow(clippy::maybe_infinite_iter)]
#[deny(clippy::infinite_iter)]
fn infinite_iters() {
repeat(0_u8).collect::<Vec<_>>();
//~^ infinite_iter
// infinite iter
(0..8_u32).ta... | 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_size.rs | src/tools/clippy/tests/ui/cast_size.rs | //@revisions: r32bit r64bit
//@[r32bit]ignore-bitwidth: 64
//@[r64bit]ignore-bitwidth: 32
//@no-rustfix: only some diagnostics have suggestions
#![warn(
clippy::cast_precision_loss,
clippy::cast_possible_truncation,
clippy::cast_sign_loss,
clippy::cast_possible_wrap,
clippy::cast_lossless
)]
#![all... | 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_unwrap_or.rs | src/tools/clippy/tests/ui/map_unwrap_or.rs | //@aux-build:option_helpers.rs
//@no-rustfix
#![warn(clippy::map_unwrap_or)]
#![allow(clippy::uninlined_format_args, clippy::unnecessary_lazy_evaluations)]
#[macro_use]
extern crate option_helpers;
use std::collections::HashMap;
#[rustfmt::skip]
fn option_methods() {
let opt = Some(1);
// Check for `option.... | 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_clone.rs | src/tools/clippy/tests/ui/implicit_clone.rs | #![warn(clippy::implicit_clone)]
#![allow(clippy::clone_on_copy, clippy::redundant_clone)]
use std::borrow::Borrow;
use std::ffi::{OsStr, OsString};
use std::path::PathBuf;
fn return_owned_from_slice(slice: &[u32]) -> Vec<u32> {
slice.to_owned()
}
pub fn own_same<T>(v: T) -> T
where
T: ToOwned<Owned = T>,
{
... | 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.rs | src/tools/clippy/tests/ui/transmute.rs | #![feature(f128)]
#![feature(f16)]
#![allow(
dead_code,
clippy::borrow_as_ptr,
unnecessary_transmutes,
integer_to_ptr_transmutes,
clippy::needless_lifetimes,
clippy::missing_transmute_annotations
)]
//@no-rustfix
extern crate core;
use std::mem::transmute as my_transmute;
use std::vec::Vec as 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/redundant_pattern_matching_ipaddr.rs | src/tools/clippy/tests/ui/redundant_pattern_matching_ipaddr.rs | #![warn(clippy::redundant_pattern_matching)]
#![allow(
clippy::match_like_matches_macro,
clippy::needless_bool,
clippy::needless_ifs,
clippy::uninlined_format_args
)]
use std::net::IpAddr::{self, V4, V6};
use std::net::{Ipv4Addr, Ipv6Addr};
fn main() {
let ipaddr: IpAddr = V4(Ipv4Addr::LOCALHOST);... | 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_name_repetitions.rs | src/tools/clippy/tests/ui/module_name_repetitions.rs | //@compile-flags: --test
#![warn(clippy::module_name_repetitions)]
#![allow(dead_code)]
pub mod foo {
pub fn foo() {}
pub fn foo_bar() {}
//~^ module_name_repetitions
pub fn bar_foo() {}
//~^ module_name_repetitions
pub struct FooCake;
//~^ module_name_repetitions
pub enum CakeFoo {... | 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_self_imports.rs | src/tools/clippy/tests/ui/unnecessary_self_imports.rs | #![warn(clippy::unnecessary_self_imports)]
#![allow(unused_imports, dead_code)]
use std::collections::hash_map::{self, *};
use std::fs::{self as alias};
//~^ unnecessary_self_imports
use std::io::{self, Read};
use std::rc::{self};
//~^ unnecessary_self_imports
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/unneeded_struct_pattern.rs | src/tools/clippy/tests/ui/unneeded_struct_pattern.rs | //@aux-build:non-exhaustive-enum.rs
#![allow(
clippy::manual_unwrap_or_default,
clippy::manual_unwrap_or,
clippy::redundant_pattern_matching
)]
#![warn(clippy::unneeded_struct_pattern)]
extern crate non_exhaustive_enum;
use non_exhaustive_enum::*;
fn noop() {}
fn main() {
match Some(114514) {
... | 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/partial_pub_fields.rs | src/tools/clippy/tests/ui/partial_pub_fields.rs | #![allow(unused)]
#![warn(clippy::partial_pub_fields)]
fn main() {
use std::collections::HashMap;
#[derive(Default)]
pub struct FileSet {
files: HashMap<String, u32>,
pub paths: HashMap<u32, String>,
//~^ partial_pub_fields
}
pub struct Color {
pub r: u8,
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/into_iter_on_ref.rs | src/tools/clippy/tests/ui/into_iter_on_ref.rs | #![allow(clippy::useless_vec, clippy::needless_borrow)]
#![warn(clippy::into_iter_on_ref)]
struct X;
use std::collections::*;
fn main() {
for _ in &[1, 2, 3] {}
for _ in vec![X, X] {}
for _ in &vec![X, X] {}
let _ = vec![1, 2, 3].into_iter();
let _ = (&vec![1, 2, 3]).into_iter();
//~^ into_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/unnecessary_cast_unfixable.rs | src/tools/clippy/tests/ui/unnecessary_cast_unfixable.rs | #![warn(clippy::unnecessary_cast)]
//@no-rustfix
fn main() {
let _ = std::ptr::null() as *const u8;
//~^ unnecessary_cast
}
mod issue11113 {
#[repr(C)]
struct Vtbl {
query: unsafe extern "system" fn(),
}
struct TearOff {
object: *mut std::ffi::c_void,
}
impl TearOff {
... | 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/cloned_instead_of_copied.rs | src/tools/clippy/tests/ui/cloned_instead_of_copied.rs | #![warn(clippy::cloned_instead_of_copied)]
#![allow(unused)]
#![allow(clippy::useless_vec)]
fn main() {
// yay
let _ = [1].iter().cloned();
//~^ cloned_instead_of_copied
let _ = vec!["hi"].iter().cloned();
//~^ cloned_instead_of_copied
let _ = Some(&1).cloned();
//~^ cloned_instead_of_copie... | 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_abs_to_unsigned.rs | src/tools/clippy/tests/ui/cast_abs_to_unsigned.rs | #![warn(clippy::cast_abs_to_unsigned)]
#![allow(unused)]
fn main() {
let x: i32 = -42;
let y: u32 = x.abs() as u32;
//~^ cast_abs_to_unsigned
println!("The absolute value of {x} is {y}");
let a: i32 = -3;
let _: usize = a.abs() as usize;
//~^ cast_abs_to_unsigned
let _: usize = a.abs()... | 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.rs | src/tools/clippy/tests/ui/never_loop.rs | #![feature(try_blocks)]
#![expect(clippy::eq_op, clippy::single_match, clippy::while_immutable_condition)]
//@no-rustfix
use std::arch::asm;
fn test1() {
let mut x = 0;
loop {
//~^ never_loop
// clippy::never_loop
x += 1;
if x == 1 {
return;
}
break... | 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/def_id_nocore.rs | src/tools/clippy/tests/ui/def_id_nocore.rs | #![feature(no_core, lang_items)]
#![no_core]
#![allow(clippy::missing_safety_doc)]
#[link(name = "c")]
unsafe extern "C" {}
#[lang = "pointee_sized"]
pub trait PointeeSized {}
#[lang = "meta_sized"]
pub trait MetaSized: PointeeSized {}
#[lang = "sized"]
pub trait Sized: MetaSized {}
#[lang = "copy"]
pub trait 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/needless_type_cast_unfixable.rs | src/tools/clippy/tests/ui/needless_type_cast_unfixable.rs | //@no-rustfix
#![warn(clippy::needless_type_cast)]
struct Foo(*mut core::ffi::c_void);
enum Bar {
Variant(*mut core::ffi::c_void),
}
// Suggestions will not compile directly, as `123` is a literal which
// is not compatible with the suggested `*mut core::ffi::c_void` type
fn issue_16243() {
let underlying: 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_saturating_add.rs | src/tools/clippy/tests/ui/implicit_saturating_add.rs | #![allow(unused)]
#![warn(clippy::implicit_saturating_add)]
fn main() {
let mut u_8: u8 = 255;
let mut u_16: u16 = 500;
let mut u_32: u32 = 7000;
let mut u_64: u64 = 7000;
let mut i_8: i8 = 30;
let mut i_16: i16 = 500;
let mut i_32: i32 = 7000;
let mut i_64: i64 = 7000;
if i_8 < 42... | 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_collect_result_unit.rs | src/tools/clippy/tests/ui/map_collect_result_unit.rs | #![warn(clippy::map_collect_result_unit)]
fn main() {
{
let _ = (0..3).map(|t| Err(t + 1)).collect::<Result<(), _>>();
//~^ map_collect_result_unit
let _: Result<(), _> = (0..3).map(|t| Err(t + 1)).collect();
//~^ map_collect_result_unit
let _ = (0..3).try_for_each(|t| Err(... | 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/expect_tool_lint_rfc_2383.rs | src/tools/clippy/tests/ui/expect_tool_lint_rfc_2383.rs | //! This file tests the `#[expect]` attribute implementation for tool lints. The same
//! file is used to test clippy and rustdoc. Any changes to this file should be synced
//! to the other test files as well.
//!
//! Expectations:
//! * rustc: only rustc lint expectations are emitted
//! * clippy: rustc and Clippy's 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/tuple_array_conversions.rs | src/tools/clippy/tests/ui/tuple_array_conversions.rs | //@aux-build:proc_macros.rs
#![allow(clippy::no_effect, clippy::useless_vec, unused)]
#![warn(clippy::tuple_array_conversions)]
#[macro_use]
extern crate proc_macros;
fn main() {
let x = [1, 2];
let x = (x[0], x[1]);
//~^ tuple_array_conversions
let x = [x.0, x.1];
//~^ tuple_array_conversions
... | 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/literals.rs | src/tools/clippy/tests/ui/literals.rs | //@no-rustfix: overlapping suggestions
// does not test any rustfixable lints
#![warn(clippy::mixed_case_hex_literals)]
#![warn(clippy::zero_prefixed_literal)]
#![warn(clippy::unseparated_literal_suffix)]
#![warn(clippy::separated_literal_suffix)]
#![allow(dead_code, overflowing_literals)]
fn main() {
let ok1 = 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/question_mark_used.rs | src/tools/clippy/tests/ui/question_mark_used.rs | // non rustfixable
#![allow(unreachable_code)]
#![allow(dead_code)]
#![warn(clippy::question_mark_used)]
fn other_function() -> Option<i32> {
Some(32)
}
fn my_function() -> Option<i32> {
other_function()?;
//~^ question_mark_used
None
}
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/entry_with_else.rs | src/tools/clippy/tests/ui/entry_with_else.rs | #![allow(unused, clippy::needless_pass_by_value, clippy::collapsible_if)]
#![warn(clippy::map_entry)]
use std::collections::{BTreeMap, HashMap};
use std::hash::Hash;
macro_rules! m {
($e:expr) => {{ $e }};
}
fn foo() {}
fn insert_if_absent0<K: Eq + Hash + Copy, V: Copy>(m: &mut HashMap<K, V>, k: K, v: V, v2: 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/manual_ignore_case_cmp.rs | src/tools/clippy/tests/ui/manual_ignore_case_cmp.rs | #![warn(clippy::manual_ignore_case_cmp)]
#![allow(
clippy::deref_addrof,
clippy::op_ref,
clippy::ptr_arg,
clippy::short_circuit_statement,
clippy::unnecessary_operation
)]
use std::ffi::{OsStr, OsString};
fn main() {}
fn variants(a: &str, b: &str) {
if a.to_ascii_lowercase() == b.to_ascii_low... | 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/bytes_count_to_len.rs | src/tools/clippy/tests/ui/bytes_count_to_len.rs | #![warn(clippy::bytes_count_to_len)]
use std::fs::File;
use std::io::{BufReader, Read};
fn main() {
// should fix, because type is String
let _ = String::from("foo").bytes().count();
//~^ bytes_count_to_len
let s1 = String::from("foo");
let _ = s1.bytes().count();
//~^ bytes_count_to_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/reversed_empty_ranges_unfixable.rs | src/tools/clippy/tests/ui/reversed_empty_ranges_unfixable.rs | #![warn(clippy::reversed_empty_ranges)]
const ANSWER: i32 = 42;
const SOME_NUM: usize = 3;
fn main() {
let arr = [1, 2, 3, 4, 5];
let _ = &arr[3usize..=1usize];
//~^ reversed_empty_ranges
let _ = &arr[SOME_NUM..1];
//~^ reversed_empty_ranges
for _ in ANSWER..ANSWER {}
//~^ reversed_empty... | 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_result_map_or_else.rs | src/tools/clippy/tests/ui/unnecessary_result_map_or_else.rs | #![warn(clippy::unnecessary_result_map_or_else)]
#![allow(clippy::unnecessary_literal_unwrap, clippy::let_and_return, clippy::let_unit_value)]
fn main() {
let x: Result<(), ()> = Ok(());
x.map_or_else(|err| err, |n| n);
//~^ unnecessary_result_map_or_else
// Type ascribtion.
let x: Result<(), ()> ... | 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/derived_hash_with_manual_eq.rs | src/tools/clippy/tests/ui/derived_hash_with_manual_eq.rs | #![allow(clippy::derive_partial_eq_without_eq)]
#[derive(PartialEq, Hash)]
struct Foo;
impl PartialEq<u64> for Foo {
fn eq(&self, _: &u64) -> bool {
true
}
}
#[derive(Hash)]
//~^ derived_hash_with_manual_eq
struct Bar;
impl PartialEq for Bar {
fn eq(&self, _: &Bar) -> bool {
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/missing_panics_doc.rs | src/tools/clippy/tests/ui/missing_panics_doc.rs | //@aux-build:macro_rules.rs
#![warn(clippy::missing_panics_doc)]
#![allow(clippy::option_map_unit_fn, clippy::unnecessary_literal_unwrap)]
#[macro_use]
extern crate macro_rules;
use macro_rules::macro_with_panic;
fn main() {}
/// This needs to be documented
pub fn unwrap() {
//~^ missing_panics_doc
let resu... | 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/string_slice.rs | src/tools/clippy/tests/ui/string_slice.rs | #![warn(clippy::string_slice)]
#![allow(clippy::no_effect)]
use std::borrow::Cow;
fn main() {
&"Ölkanne"[1..];
//~^ string_slice
let m = "Mötörhead";
&m[2..5];
//~^ string_slice
let s = String::from(m);
&s[0..2];
//~^ string_slice
let a = Cow::Borrowed("foo");
&a[0..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/needless_parens_on_range_literals.rs | src/tools/clippy/tests/ui/needless_parens_on_range_literals.rs | //@edition:2018
#![warn(clippy::needless_parens_on_range_literals)]
#![allow(clippy::almost_complete_range)]
fn main() {
let _ = ('a')..=('z');
//~^ needless_parens_on_range_literals
//~| needless_parens_on_range_literals
let _ = 'a'..('z');
//~^ needless_parens_on_range_literals
let _ = (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/manual_hash_one.rs | src/tools/clippy/tests/ui/manual_hash_one.rs | #![warn(clippy::manual_hash_one)]
#![allow(clippy::needless_borrows_for_generic_args)]
use std::hash::{BuildHasher, Hash, Hasher};
fn returned(b: impl BuildHasher) -> u64 {
let mut hasher = b.build_hasher();
true.hash(&mut hasher);
hasher.finish()
//~^ manual_hash_one
}
fn unsized_receiver(b: impl 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/must_use_candidates.rs | src/tools/clippy/tests/ui/must_use_candidates.rs | #![feature(never_type)]
#![allow(
unused_mut,
clippy::redundant_allocation,
clippy::needless_pass_by_ref_mut,
static_mut_refs
)]
#![warn(clippy::must_use_candidate)]
use std::rc::Rc;
use std::sync::Arc;
use std::sync::atomic::{AtomicBool, Ordering};
pub struct MyAtomic(AtomicBool);
pub struct MyPure;
... | 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/from_str_radix_10.rs | src/tools/clippy/tests/ui/from_str_radix_10.rs | #![warn(clippy::from_str_radix_10)]
mod some_mod {
// fake function that shouldn't trigger the lint
pub fn from_str_radix(_: &str, _: u32) -> Result<(), std::num::ParseIntError> {
unimplemented!()
}
}
// fake function that shouldn't trigger the lint
fn from_str_radix(_: &str, _: u32) -> Result<(),... | 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/reserve_after_initialization.rs | src/tools/clippy/tests/ui/reserve_after_initialization.rs | //@aux-build:proc_macros.rs
#![warn(clippy::reserve_after_initialization)]
#![no_main]
extern crate proc_macros;
use proc_macros::{external, with_span};
// Should lint
fn standard() {
let mut v1: Vec<usize> = vec![];
//~^ reserve_after_initialization
v1.reserve(10);
}
// Should lint
fn capacity_as_expr()... | 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_let_else.rs | src/tools/clippy/tests/ui/manual_let_else.rs | #![feature(try_blocks)]
#![allow(unused_braces, unused_variables, dead_code)]
#![allow(
clippy::collapsible_else_if,
clippy::unused_unit,
clippy::let_unit_value,
clippy::match_single_binding,
clippy::never_loop,
clippy::needless_ifs,
clippy::diverging_sub_expression,
clippy::single_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/print_with_newline.rs | src/tools/clippy/tests/ui/print_with_newline.rs | // FIXME: Ideally these suggestions would be fixed via rustfix. Blocked by rust-lang/rust#53934
#![allow(clippy::print_literal)]
#![warn(clippy::print_with_newline)]
fn main() {
print!("Hello\n");
//~^ print_with_newline
print!("Hello {}\n", "world");
//~^ print_with_newline
print!("Hello {} {}\... | 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/too_long_first_doc_paragraph.rs | src/tools/clippy/tests/ui/too_long_first_doc_paragraph.rs | //@no-rustfix
#![warn(clippy::too_long_first_doc_paragraph)]
pub mod foo {
// in foo.rs
//! A very short summary.
//~^ too_long_first_doc_paragraph
//! A much longer explanation that goes into a lot more detail about
//! how the thing works, possibly with doclinks and so one,
//! and probably... | 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_string_new.rs | src/tools/clippy/tests/ui/manual_string_new.rs | #![warn(clippy::manual_string_new)]
#![allow(clippy::unnecessary_fallible_conversions)]
macro_rules! create_strings_from_macro {
// When inside a macro, nothing should warn to prevent false positives.
($some_str:expr) => {
let _: String = $some_str.into();
let _ = $some_str.to_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/clone_on_copy_impl.rs | src/tools/clippy/tests/ui/clone_on_copy_impl.rs | //@ check-pass
#![allow(clippy::non_canonical_clone_impl)]
use std::fmt;
use std::marker::PhantomData;
pub struct Key<T> {
#[doc(hidden)]
pub __name: &'static str,
#[doc(hidden)]
pub __phantom: PhantomData<T>,
}
impl<T> Copy for Key<T> {}
impl<T> Clone for Key<T> {
fn clone(&self) -> 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/needless_pub_self.rs | src/tools/clippy/tests/ui/needless_pub_self.rs |
//@aux-build:proc_macros.rs
#![feature(custom_inner_attributes)]
#![allow(unused)]
#![warn(clippy::needless_pub_self)]
#![no_main]
#![rustfmt::skip] // rustfmt will remove `in`, understandable
// but very annoying for our purposes!
#[macro_use]
extern crate proc_macros;
pub(self) fn a() {}
//~^ nee... | 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/cloned_ref_to_slice_refs.rs | src/tools/clippy/tests/ui/cloned_ref_to_slice_refs.rs | #![warn(clippy::cloned_ref_to_slice_refs)]
#[derive(Clone)]
struct Data;
fn main() {
{
let data = Data;
let data_ref = &data;
let _ = &[data_ref.clone()]; //~ ERROR: this call to `clone` can be replaced with `std::slice::from_ref`
}
{
let _ = &[Data.clone()]; //~ ERROR: th... | 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/floating_point_log.rs | src/tools/clippy/tests/ui/floating_point_log.rs | #![allow(dead_code, clippy::double_parens, clippy::unnecessary_cast)]
#![warn(clippy::suboptimal_flops, clippy::imprecise_flops)]
// FIXME(f16_f128): add tests for these types once math functions are available
const TWO: f32 = 2.0;
const E: f32 = std::f32::consts::E;
fn check_log_base() {
let x = 1f32;
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/print_stdout.rs | src/tools/clippy/tests/ui/print_stdout.rs | #![expect(clippy::print_literal)]
#![warn(clippy::print_stdout)]
fn main() {
println!("Hello");
//~^ print_stdout
print!("Hello");
//~^ print_stdout
print!("Hello {}", "World");
//~^ print_stdout
print!("Hello {:?}", "World");
//~^ print_stdout
print!("Hello {:#?}", "#orld");
... | 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/bytes_nth.rs | src/tools/clippy/tests/ui/bytes_nth.rs | #![allow(clippy::unnecessary_operation)]
#![allow(clippy::sliced_string_as_bytes)]
#![warn(clippy::bytes_nth)]
fn main() {
let s = String::from("String");
let _ = s.bytes().nth(3);
//~^ bytes_nth
let _ = &s.bytes().nth(3).unwrap();
//~^ bytes_nth
let _ = s[..].bytes().nth(3);
//~^ bytes_nth... | 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_unit.rs | src/tools/clippy/tests/ui/unused_unit.rs | //@revisions: edition2021 edition2024
//@[edition2021] edition:2021
//@[edition2024] edition:2024
// The output for humans should just highlight the whole span without showing
// the suggested replacement, but we also want to test that suggested
// replacement only removes one set of parentheses, rather than naïvely
/... | 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/mixed_attributes_style.rs | src/tools/clippy/tests/ui/mixed_attributes_style.rs | //@aux-build:proc_macro_attr.rs
//@compile-flags: --test --cfg dummy_cfg
#![feature(custom_inner_attributes)]
#![warn(clippy::mixed_attributes_style)]
#![allow(clippy::duplicated_attributes)]
#[macro_use]
extern crate proc_macro_attr;
#[allow(unused)] //~ ERROR: item has both inner and outer attributes
fn foo1() {
... | 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_unit_fn_fixable.rs | src/tools/clippy/tests/ui/option_map_unit_fn_fixable.rs | #![warn(clippy::option_map_unit_fn)]
#![expect(clippy::unnecessary_wraps)]
fn do_nothing<T>(_: T) {}
fn diverge<T>(_: T) -> ! {
panic!()
}
fn plus_one(value: usize) -> usize {
value + 1
}
fn option() -> Option<usize> {
Some(10)
}
struct HasOption {
field: Option<usize>,
}
impl HasOption {
fn d... | 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_out_of_bounds.rs | src/tools/clippy/tests/ui/iter_out_of_bounds.rs | #![deny(clippy::iter_out_of_bounds)]
#![allow(clippy::useless_vec)]
fn opaque_empty_iter() -> impl Iterator<Item = ()> {
std::iter::empty()
}
fn main() {
#[allow(clippy::never_loop)]
for _ in [1, 2, 3].iter().skip(4) {
//~^ iter_out_of_bounds
unreachable!();
}
for (i, _) in [1, 2,... | 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/vec_resize_to_zero.rs | src/tools/clippy/tests/ui/vec_resize_to_zero.rs | #![warn(clippy::vec_resize_to_zero)]
fn main() {
let mut v = vec![1, 2, 3, 4, 5];
// applicable here
v.resize(0, 5);
//~^ vec_resize_to_zero
// not applicable
v.resize(2, 5);
let mut v = vec!["foo", "bar", "baz"];
// applicable here, but only implemented for integer literals for now... | 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_sort_by.rs | src/tools/clippy/tests/ui/unnecessary_sort_by.rs | #![allow(clippy::stable_sort_primitive, clippy::useless_vec)]
use std::cell::Ref;
fn unnecessary_sort_by() {
fn id(x: isize) -> isize {
x
}
let mut vec: Vec<isize> = vec![3, 6, 1, 2, 5];
// Forward examples
vec.sort_by(|a, b| a.cmp(b));
//~^ unnecessary_sort_by
vec.sort_unstable_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/large_enum_variant_no_std.rs | src/tools/clippy/tests/ui/large_enum_variant_no_std.rs | #![no_std]
#![warn(clippy::large_enum_variant)]
enum Myenum {
//~^ ERROR: large size difference between variants
Small(u8),
Large([u8; 1024]),
}
| 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_bool.rs | src/tools/clippy/tests/ui/match_bool.rs | #![deny(clippy::match_bool)]
#![allow(clippy::nonminimal_bool, clippy::eq_op)]
fn match_bool() {
let test: bool = true;
match test {
//~^ match_bool
true => 0,
false => 42,
};
let option = 1;
match option == 1 {
//~^ match_bool
true => 1,
false => 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/needless_bool_assign.rs | src/tools/clippy/tests/ui/needless_bool_assign.rs | #![allow(unused)]
#![warn(clippy::needless_bool_assign)]
fn random() -> bool {
true
}
fn main() {
struct Data {
field: bool,
};
let mut a = Data { field: false };
if random() && random() {
a.field = true;
} else {
a.field = false
}
//~^^^^^ needless_bool_assign
... | 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_forget.rs | src/tools/clippy/tests/ui/mem_forget.rs | use std::rc::Rc;
use std::sync::Arc;
use std::mem as memstuff;
use std::mem::forget as forgetSomething;
#[warn(clippy::mem_forget)]
#[allow(forgetting_copy_types)]
fn main() {
let five: i32 = 5;
forgetSomething(five);
let six: Arc<i32> = Arc::new(6);
memstuff::forget(six);
//~^ mem_forget
le... | 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/seek_from_current.rs | src/tools/clippy/tests/ui/seek_from_current.rs | #![warn(clippy::seek_from_current)]
use std::fs::File;
use std::io::{self, Seek, SeekFrom, Write};
#[clippy::msrv = "1.50"]
fn _msrv_1_50() -> io::Result<()> {
let mut f = File::create("foo.txt")?;
f.write_all(b"Hi!")?;
f.seek(SeekFrom::Current(0))?;
f.seek(SeekFrom::Current(1))?;
Ok(())
}
#[clip... | 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.rs | src/tools/clippy/tests/ui/unwrap.rs | #![warn(clippy::unwrap_used)]
#![allow(clippy::unnecessary_literal_unwrap)]
fn unwrap_option() {
let opt = Some(0);
let _ = opt.unwrap();
//~^ unwrap_used
}
fn unwrap_result() {
let res: Result<u8, u8> = Ok(0);
let _ = res.unwrap();
//~^ unwrap_used
let _ = res.unwrap_err();
//~^ unwr... | 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_wild_err_arm.rs | src/tools/clippy/tests/ui/match_wild_err_arm.rs | #![allow(clippy::match_same_arms, dead_code)]
#![warn(clippy::match_wild_err_arm)]
fn issue_10635() {
enum Error {
A,
B,
}
// Don't trigger in const contexts. Const unwrap is not yet stable
const X: () = match Ok::<_, Error>(()) {
Ok(x) => x,
Err(_) => panic!(),
};
... | 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/formatting.rs | src/tools/clippy/tests/ui/formatting.rs | #![allow(clippy::if_same_then_else)]
#![allow(clippy::deref_addrof)]
#![allow(clippy::nonminimal_bool)]
fn foo() -> bool {
true
}
#[rustfmt::skip]
fn main() {
// weird op_eq formatting:
let mut a = 42;
a =- 35;
//~^ suspicious_assignment_formatting
a =* &191;
//~^ suspicious_assignment_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/float_cmp.rs | src/tools/clippy/tests/ui/float_cmp.rs | // FIXME(f16_f128): const casting is not yet supported for these types. Add when available.
#![warn(clippy::float_cmp)]
#![allow(
unused,
clippy::no_effect,
clippy::op_ref,
clippy::unnecessary_operation,
clippy::cast_lossless
)]
//@no-rustfix: suggestions have an error margin placeholder
use std::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/while_let_on_iterator.rs | src/tools/clippy/tests/ui/while_let_on_iterator.rs | #![warn(clippy::while_let_on_iterator)]
#![allow(dead_code, unreachable_code, unused_mut)]
#![allow(
clippy::equatable_if_let,
clippy::manual_find,
clippy::never_loop,
clippy::redundant_closure_call,
clippy::single_range_in_vec_init,
clippy::uninlined_format_args,
clippy::useless_vec
)]
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/floating_point_powf.rs | src/tools/clippy/tests/ui/floating_point_powf.rs | #![warn(clippy::suboptimal_flops, clippy::imprecise_flops)]
#![allow(clippy::unnecessary_cast)]
// FIXME(f16_f128): add tests for these types when `powf` is available
fn main() {
let x = 3f32;
let _ = 2f32.powf(x);
//~^ suboptimal_flops
let _ = 2f32.powf(3.1);
//~^ suboptimal_flops
let _ = 2f3... | 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/empty_enum_variants_with_brackets.rs | src/tools/clippy/tests/ui/empty_enum_variants_with_brackets.rs | #![warn(clippy::empty_enum_variants_with_brackets)]
#![allow(dead_code)]
#![feature(more_qualified_paths)]
pub enum PublicTestEnum {
NonEmptyBraces { x: i32, y: i32 }, // No error
NonEmptyParentheses(i32, i32), // No error
EmptyBraces {},
//~^ empty_enum_variants_with_brackets
EmptyParentheses(... | 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_unwrap_or_default_unfixable.rs | src/tools/clippy/tests/ui/manual_unwrap_or_default_unfixable.rs | //@no-rustfix
fn issue_12670() {
// no auto: type not found
#[allow(clippy::match_result_ok)]
let _ = if let Some(x) = "1".parse().ok() {
//~^ manual_unwrap_or_default
x
} else {
i32::default()
};
let _ = if let Some(x) = None { x } else { i32::default() };
//~^ manua... | 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/duplicate_underscore_argument.rs | src/tools/clippy/tests/ui/duplicate_underscore_argument.rs | #![warn(clippy::duplicate_underscore_argument)]
fn join_the_dark_side(darth: i32, _darth: i32) {}
//~^ duplicate_underscore_argument
fn join_the_light_side(knight: i32, _master: i32) {} // the Force is strong with this one
fn main() {
join_the_dark_side(0, 0);
join_the_light_side(0, 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/single_char_lifetime_names.rs | src/tools/clippy/tests/ui/single_char_lifetime_names.rs | #![warn(clippy::single_char_lifetime_names)]
#![allow(clippy::let_unit_value)]
// Lifetimes should only be linted when they're introduced
struct DiagnosticCtx<'a, 'b>
//~^ single_char_lifetime_names
//~| single_char_lifetime_names
where
'a: 'b,
{
_source: &'a str,
_unit: &'b (),
}
// Only the lifetimes on... | 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/filetype_is_file.rs | src/tools/clippy/tests/ui/filetype_is_file.rs | #![allow(clippy::needless_ifs)]
#![warn(clippy::filetype_is_file)]
fn main() -> std::io::Result<()> {
use std::fs;
use std::ops::BitOr;
// !filetype.is_dir()
if fs::metadata("foo.txt")?.file_type().is_file() {
//~^ filetype_is_file
// read file
}
// positive of filetype.is_di... | 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_include.rs | src/tools/clippy/tests/ui/doc_suspicious_footnotes_include.rs | //@ error-in-other-file: footnote
//@ no-rustfix
#![warn(clippy::doc_suspicious_footnotes)]
#![doc=include_str!("doc_suspicious_footnotes_include.txt")]
| 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/ineffective_open_options.rs | src/tools/clippy/tests/ui/ineffective_open_options.rs | #![warn(clippy::ineffective_open_options)]
use std::fs::OpenOptions;
fn main() {
let file = OpenOptions::new()
.create(true)
.write(true)
//~^ ineffective_open_options
.append(true)
.open("dump.json")
.unwrap();
let file = OpenOptions::new()
.create(tru... | 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/floating_point_logbase.rs | src/tools/clippy/tests/ui/floating_point_logbase.rs | #![warn(clippy::suboptimal_flops)]
#![allow(clippy::unnecessary_cast)]
fn main() {
let x = 3f32;
let y = 5f32;
let _ = x.ln() / y.ln();
//~^ suboptimal_flops
let _ = (x as f32).ln() / y.ln();
//~^ suboptimal_flops
let _ = x.log2() / y.log2();
//~^ suboptimal_flops
let _ = x.log10() ... | 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/suspicious_operation_groupings.rs | src/tools/clippy/tests/ui/suspicious_operation_groupings.rs | //@compile-flags: -Zdeduplicate-diagnostics=yes
#![warn(clippy::suspicious_operation_groupings)]
#![allow(dead_code, unused_parens, clippy::eq_op, clippy::manual_midpoint)]
struct Vec3 {
x: f64,
y: f64,
z: f64,
}
impl Eq for Vec3 {}
impl PartialEq for Vec3 {
fn eq(&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/manual_find_fixable.rs | src/tools/clippy/tests/ui/manual_find_fixable.rs | #![warn(clippy::manual_find)]
#![allow(unused)]
#![allow(clippy::needless_return, clippy::uninlined_format_args)]
use std::collections::HashMap;
const ARRAY: &[u32; 5] = &[2, 7, 1, 9, 3];
fn lookup(n: u32) -> Option<u32> {
for &v in ARRAY {
//~^ manual_find
if v == n {
return Some(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/unbuffered_bytes.rs | src/tools/clippy/tests/ui/unbuffered_bytes.rs | #![warn(clippy::unbuffered_bytes)]
use std::fs::File;
use std::io::{BufReader, Cursor, Read, Stdin, stdin};
use std::net::TcpStream;
fn main() {
// File is not buffered, should complain
let file = File::open("./bytes.txt").unwrap();
file.bytes();
//~^ unbuffered_bytes
// TcpStream is not buffered... | 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_flatten.rs | src/tools/clippy/tests/ui/manual_flatten.rs | #![warn(clippy::manual_flatten)]
#![allow(clippy::useless_vec, clippy::uninlined_format_args)]
fn main() {
// Test for loop over implicitly adjusted `Iterator` with `if let` expression
let x = vec![Some(1), Some(2), Some(3)];
for n in x {
//~^ manual_flatten
if let Some(y) = 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/unnecessary_fallible_conversions_unfixable.rs | src/tools/clippy/tests/ui/unnecessary_fallible_conversions_unfixable.rs | //@aux-build:proc_macros.rs
//@no-rustfix
#![warn(clippy::unnecessary_fallible_conversions)]
extern crate proc_macros;
struct Foo;
impl TryFrom<i32> for Foo {
type Error = ();
fn try_from(_: i32) -> Result<Self, Self::Error> {
Ok(Foo)
}
}
impl From<i64> for Foo {
fn from(_: i64) -> 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/eta.rs | src/tools/clippy/tests/ui/eta.rs | // we have some HELP annotations -- don't complain about them not being present everywhere
//@require-annotations-for-level: ERROR
#![warn(clippy::redundant_closure, clippy::redundant_closure_for_method_calls)]
#![allow(unused)]
#![allow(
clippy::needless_borrow,
clippy::needless_option_as_deref,
clippy::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/or_fun_call.rs | src/tools/clippy/tests/ui/or_fun_call.rs | #![warn(clippy::or_fun_call)]
#![allow(
clippy::borrow_as_ptr,
clippy::uninlined_format_args,
clippy::unnecessary_wraps,
clippy::unnecessary_literal_unwrap,
clippy::unnecessary_result_map_or_else,
clippy::unnecessary_option_map_or_else,
clippy::useless_vec
)]
use std::collections::{BTreeMap... | 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_ilog2.rs | src/tools/clippy/tests/ui/manual_ilog2.rs | //@aux-build:proc_macros.rs
#![warn(clippy::manual_ilog2)]
#![allow(clippy::unnecessary_operation)]
use proc_macros::{external, with_span};
fn foo(a: u32, b: u64) {
31 - a.leading_zeros(); //~ manual_ilog2
a.ilog(2); //~ manual_ilog2
63 - b.leading_zeros(); //~ manual_ilog2
64 - b.leading_zeros(); //... | 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.rs | src/tools/clippy/tests/ui/mut_mut.rs | //@aux-build:proc_macros.rs
#![warn(clippy::mut_mut)]
#![allow(unused)]
#![allow(
clippy::no_effect,
clippy::uninlined_format_args,
clippy::unnecessary_operation,
clippy::needless_pass_by_ref_mut
)]
extern crate proc_macros;
use proc_macros::{external, inline_macros};
fn fun(x: &mut &mut 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/volatile_composites.rs | src/tools/clippy/tests/ui/volatile_composites.rs | #![feature(ptr_metadata)]
#![feature(portable_simd)]
#![warn(clippy::volatile_composites)]
use std::ptr::null_mut;
#[repr(C)]
#[derive(Copy, Clone, Default)]
struct MyDevRegisters {
baseaddr: usize,
count: usize,
}
#[repr(transparent)]
struct Wrapper<T>((), T, ());
// Not to be confused with std::ptr::NonNu... | 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_borrows_for_generic_args.rs | src/tools/clippy/tests/ui/needless_borrows_for_generic_args.rs | #![warn(clippy::needless_borrows_for_generic_args)]
#![allow(
clippy::unnecessary_to_owned,
clippy::unnecessary_literal_unwrap,
clippy::needless_borrow
)]
use core::ops::Deref;
use std::any::Any;
use std::ffi::OsStr;
use std::fmt::{Debug, Display};
use std::path::Path;
use std::process::Command;
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/partialeq_to_none.rs | src/tools/clippy/tests/ui/partialeq_to_none.rs | #![warn(clippy::partialeq_to_none)]
#![allow(clippy::eq_op, clippy::needless_ifs)]
struct Foobar;
impl PartialEq<Option<()>> for Foobar {
fn eq(&self, _: &Option<()>) -> bool {
false
}
}
#[allow(dead_code)]
fn foo(f: Option<u32>) -> &'static str {
if f != None { "yay" } else { "nay" }
//~^ 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/floating_point_powi.rs | src/tools/clippy/tests/ui/floating_point_powi.rs | #![warn(clippy::suboptimal_flops)]
#![allow(clippy::unnecessary_cast)]
fn main() {
let one = 1;
let x = 3f32;
let y = 4f32;
let _ = x.powi(2) + y;
//~^ suboptimal_flops
let _ = x.powi(2) - y;
//~^ suboptimal_flops
let _ = x + y.powi(2);
//~^ suboptimal_flops
let _ = x - y.powi(... | 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_fixable.rs | src/tools/clippy/tests/ui/manual_strip_fixable.rs | #![warn(clippy::manual_strip)]
#![allow(clippy::uninlined_format_args)]
fn main() {
let s = "abc";
if s.starts_with("ab") {
let stripped = &s["ab".len()..];
//~^ ERROR: stripping a prefix manually
println!("{stripped}{}", &s["ab".len()..]);
}
if s.ends_with("bc") {
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/significant_drop_tightening.rs | src/tools/clippy/tests/ui/significant_drop_tightening.rs | #![warn(clippy::significant_drop_tightening)]
use std::sync::Mutex;
pub fn complex_return_triggers_the_lint() -> i32 {
fn foo() -> i32 {
1
}
let mutex = Mutex::new(1);
let lock = mutex.lock().unwrap();
//~^ significant_drop_tightening
let _ = *lock;
let _ = *lock;
foo()
}
pub ... | 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_large_err.rs | src/tools/clippy/tests/ui/result_large_err.rs | //@ignore-bitwidth: 32
#![warn(clippy::result_large_err)]
#![allow(clippy::large_enum_variant)]
pub fn small_err() -> Result<(), u128> {
Ok(())
}
pub fn large_err() -> Result<(), [u8; 512]> {
//~^ result_large_err
Ok(())
}
pub struct FullyDefinedLargeError {
_foo: u128,
_bar: [u8; 100],
_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/zero_repeat_side_effects_unfixable.rs | src/tools/clippy/tests/ui/zero_repeat_side_effects_unfixable.rs | //@no-rustfix
#![warn(clippy::zero_repeat_side_effects)]
#![expect(clippy::diverging_sub_expression)]
fn issue_14998() {
// unnameable types, don't suggest
let _data = [|| 3i32; 0];
//~^ zero_repeat_side_effects
// unnameable type because `never_type` is not enabled, don't suggest
let _data = [pan... | 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_loop.rs | src/tools/clippy/tests/ui/iter_next_loop.rs | #![allow(dead_code, unused, for_loops_over_fallibles)]
#![warn(clippy::iter_next_loop)]
fn main() {
let x = [1, 2, 3, 4];
for _ in x.iter().next() {}
//~^ iter_next_loop
struct Unrelated(&'static [u8]);
impl Unrelated {
fn next(&self) -> std::slice::Iter<'_, u8> {
self.0.iter()... | 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_types_passed_by_value.rs | src/tools/clippy/tests/ui/large_types_passed_by_value.rs | //@normalize-stderr-test: "\(\d+ byte\)" -> "(N byte)"
//@normalize-stderr-test: "\(limit: \d+ byte\)" -> "(limit: N byte)"
//@no-rustfix
#![warn(clippy::large_types_passed_by_value)]
pub struct Large([u8; 2048]);
#[derive(Clone, Copy)]
pub struct LargeAndCopy([u8; 2048]);
pub struct Small([u8; 4]);
#[derive(Clone,... | 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_borrow.rs | src/tools/clippy/tests/ui/needless_borrow.rs | #![allow(
unused,
non_local_definitions,
clippy::uninlined_format_args,
clippy::unnecessary_mut_passed,
clippy::unnecessary_to_owned,
clippy::unnecessary_literal_unwrap,
clippy::needless_lifetimes
)]
#![warn(clippy::needless_borrow)]
fn main() {
let a = 5;
let ref_a = &a;
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/manual_while_let_some.rs | src/tools/clippy/tests/ui/manual_while_let_some.rs | #![allow(unused)]
#![warn(clippy::manual_while_let_some)]
struct VecInStruct {
numbers: Vec<i32>,
unrelated: String,
}
struct Foo {
a: i32,
b: i32,
}
fn accept_i32(_: i32) {}
fn accept_optional_i32(_: Option<i32>) {}
fn accept_i32_tuple(_: (i32, i32)) {}
fn main() {
let mut numbers = vec![1, 2, ... | 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_ident_chars.rs | src/tools/clippy/tests/ui/min_ident_chars.rs | //@aux-build:proc_macros.rs
#![allow(irrefutable_let_patterns, nonstandard_style, unused)]
#![allow(clippy::struct_field_names)]
#![warn(clippy::min_ident_chars)]
extern crate proc_macros;
use proc_macros::{external, with_span};
struct A {
//~^ min_ident_chars
a: u32,
//~^ min_ident_chars
i: 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/manual_swap_auto_fix.rs | src/tools/clippy/tests/ui/manual_swap_auto_fix.rs | #![warn(clippy::manual_swap)]
#![no_main]
fn swap1() {
let mut v = [3, 2, 1, 0];
let index = v[0];
//~^ manual_swap
v[0] = v[index];
v[index] = index;
}
fn swap2() {
let mut v = [3, 2, 1, 0];
let tmp = v[0];
//~^ manual_swap
v[0] = v[1];
v[1] = tmp;
// check not found in t... | rust | Apache-2.0 | f8b1d59a81c700cb7aa25cf69e3032b3ce333150 | 2026-01-04T15:31:58.503980Z | false |
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