mirror of
https://github.com/rust-lang/rust-clippy
synced 2024-11-10 15:14:29 +00:00
55 lines
1.8 KiB
Rust
55 lines
1.8 KiB
Rust
#![allow(non_fmt_panics, clippy::needless_bool)]
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macro_rules! assert_const {
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($len:expr) => {
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assert!($len > 0);
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debug_assert!($len < 0);
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};
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}
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fn main() {
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assert!(true);
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//~^ ERROR: `assert!(true)` will be optimized out by the compiler
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assert!(false);
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//~^ ERROR: `assert!(false)` should probably be replaced
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assert!(true, "true message");
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//~^ ERROR: `assert!(true)` will be optimized out by the compiler
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assert!(false, "false message");
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//~^ ERROR: `assert!(false, ..)` should probably be replaced
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let msg = "panic message";
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assert!(false, "{}", msg.to_uppercase());
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//~^ ERROR: `assert!(false, ..)` should probably be replaced
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const B: bool = true;
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assert!(B);
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//~^ ERROR: `assert!(true)` will be optimized out by the compiler
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const C: bool = false;
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assert!(C);
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//~^ ERROR: `assert!(false)` should probably be replaced
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assert!(C, "C message");
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//~^ ERROR: `assert!(false, ..)` should probably be replaced
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debug_assert!(true);
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//~^ ERROR: `debug_assert!(true)` will be optimized out by the compiler
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// Don't lint this, since there is no better way for expressing "Only panic in debug mode".
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debug_assert!(false); // #3948
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assert_const!(3);
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assert_const!(-1);
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// Don't lint if based on `cfg!(..)`:
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assert!(cfg!(feature = "hey") || cfg!(not(feature = "asdf")));
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let flag: bool = cfg!(not(feature = "asdf"));
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assert!(flag);
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const CFG_FLAG: &bool = &cfg!(feature = "hey");
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assert!(!CFG_FLAG);
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const _: () = assert!(true);
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//~^ ERROR: `assert!(true)` will be optimized out by the compiler
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// Don't lint if the value is dependent on a defined constant:
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const N: usize = 1024;
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const _: () = assert!(N.is_power_of_two());
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}
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