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74285eb3a8
Add lint for panic!("{}")
This adds a lint that warns about `panic!("{}")`.
`panic!(msg)` invocations with a single argument use their argument as panic payload literally, without using it as a format string. The same holds for `assert!(expr, msg)`.
This lints checks if `msg` is a string literal (after expansion), and warns in case it contained braces. It suggests to insert `"{}", ` to use the message literally, or to add arguments to use it as a format string.
This lint is also a good starting point for adding warnings about `panic!(not_a_string)` later, once [`panic_any()`](https://github.com/rust-lang/rust/pull/74622) becomes a stable alternative.
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| .. | ||
| fmt | ||
| hash | ||
| num | ||
| alloc.rs | ||
| any.rs | ||
| array.rs | ||
| ascii.rs | ||
| atomic.rs | ||
| bool.rs | ||
| cell.rs | ||
| char.rs | ||
| clone.rs | ||
| cmp.rs | ||
| intrinsics.rs | ||
| iter.rs | ||
| lazy.rs | ||
| lib.rs | ||
| manually_drop.rs | ||
| mem.rs | ||
| nonzero.rs | ||
| ops.rs | ||
| option.rs | ||
| pattern.rs | ||
| pin.rs | ||
| ptr.rs | ||
| result.rs | ||
| slice.rs | ||
| str_lossy.rs | ||
| str.rs | ||
| task.rs | ||
| time.rs | ||
| tuple.rs | ||
