Suppress suggestions in derive macro close #118809 I suppress warnings inside derive macros. For example, the compiler emits following error by a program described in https://github.com/rust-lang/rust/issues/118809#issuecomment-1852256687 with a suggestion that indicates invalid syntax. ``` error[E0308]: `?` operator has incompatible types --> src/main.rs:3:17 | 3 | #[derive(Debug, Deserialize)] | ^^^^^^^^^^^ expected `u32`, found `u64` | = note: `?` operator cannot convert from `u64` to `u32` = note: this error originates in the derive macro `Deserialize` (in Nightly builds, run with -Z macro-backtrace for more info) help: you can convert a `u64` to a `u32` and panic if the converted value doesn't fit | 3 | #[derive(Debug, Deserialize.try_into().unwrap())] | ++++++++++++++++++++ For more information about this error, try `rustc --explain E0308`. error: could not compile `serde_test` (bin "serde_test") due to 2 previous errors ``` In this PR, suggestions to cast are suppressed. ``` error[E0308]: `?` operator has incompatible types --> src/main.rs:3:17 | 3 | #[derive(Debug, Deserialize)] | ^^^^^^^^^^^ expected `u32`, found `u64` | = note: `?` operator cannot convert from `u64` to `u32` = note: this error originates in the derive macro `Deserialize` (in Nightly builds, run with -Z macro-backtrace for more info) For more information about this error, try `rustc --explain E0308`. error: could not compile `serde_test` (bin "serde_test") due to 2 previous errors ``` |
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| .. | ||
| analyze_source_file | ||
| edit_distance | ||
| source_map | ||
| symbol | ||
| analyze_source_file.rs | ||
| caching_source_map_view.rs | ||
| def_id.rs | ||
| edit_distance.rs | ||
| edition.rs | ||
| fatal_error.rs | ||
| hygiene.rs | ||
| lib.rs | ||
| profiling.rs | ||
| source_map.rs | ||
| span_encoding.rs | ||
| symbol.rs | ||
| tests.rs | ||