rust-clippy/tests/ui/legacy_numeric_constants.rs

117 lines
3.2 KiB
Rust

//@aux-build:proc_macros.rs
#![allow(clippy::no_effect, deprecated, unused)]
#![allow(clippy::legacy_numeric_constants)] // For imports.
#[macro_use]
extern crate proc_macros;
pub mod a {
pub use std::u128;
}
macro_rules! b {
() => {
mod b {
#[warn(clippy::legacy_numeric_constants)]
fn b() {
let x = std::u64::MAX;
//~^ ERROR: usage of a legacy numeric constant
//~| HELP: use the associated constant instead
}
}
};
}
use std::u8::MIN;
use std::u32::MAX;
use std::{f64, u32};
#[warn(clippy::legacy_numeric_constants)]
fn main() {
std::f32::EPSILON;
//~^ ERROR: usage of a legacy numeric constant
//~| HELP: use the associated constant instead
std::u8::MIN;
//~^ ERROR: usage of a legacy numeric constant
//~| HELP: use the associated constant instead
std::usize::MIN;
//~^ ERROR: usage of a legacy numeric constant
//~| HELP: use the associated constant instead
std::u32::MAX;
//~^ ERROR: usage of a legacy numeric constant
//~| HELP: use the associated constant instead
core::u32::MAX;
//~^ ERROR: usage of a legacy numeric constant
//~| HELP: use the associated constant instead
MAX;
//~^ ERROR: usage of a legacy numeric constant
//~| HELP: use the associated constant instead
i32::max_value();
//~^ ERROR: usage of a legacy numeric method
//~| HELP: use the associated constant instead
u8::max_value();
//~^ ERROR: usage of a legacy numeric method
//~| HELP: use the associated constant instead
u8::min_value();
//~^ ERROR: usage of a legacy numeric method
//~| HELP: use the associated constant instead
::std::u8::MIN;
//~^ ERROR: usage of a legacy numeric constant
//~| HELP: use the associated constant instead
::std::primitive::u8::min_value();
//~^ ERROR: usage of a legacy numeric method
//~| HELP: use the associated constant instead
std::primitive::i32::max_value();
//~^ ERROR: usage of a legacy numeric method
//~| HELP: use the associated constant instead
self::a::u128::MAX;
//~^ ERROR: usage of a legacy numeric constant
//~| HELP: use the associated constant instead
u32::MAX;
u128::MAX;
f32::EPSILON;
::std::primitive::u8::MIN;
std::f32::consts::E;
f64::consts::E;
u8::MIN;
std::f32::consts::E;
f64::consts::E;
b!();
[(0, "", std::i128::MAX)];
//~^ ERROR: usage of a legacy numeric constant
//~| HELP: use the associated constant instead
}
#[warn(clippy::legacy_numeric_constants)]
fn ext() {
external! {
::std::primitive::u8::MIN;
::std::u8::MIN;
::std::primitive::u8::min_value();
use std::u64;
use std::u8::MIN;
}
}
#[allow(clippy::legacy_numeric_constants)]
fn allow() {
::std::primitive::u8::MIN;
::std::u8::MIN;
::std::primitive::u8::min_value();
use std::u8::MIN;
use std::u64;
}
#[warn(clippy::legacy_numeric_constants)]
#[clippy::msrv = "1.42.0"]
fn msrv_too_low() {
std::u32::MAX;
}
#[warn(clippy::legacy_numeric_constants)]
#[clippy::msrv = "1.43.0"]
fn msrv_juust_right() {
std::u32::MAX;
//~^ ERROR: usage of a legacy numeric constant
}