786f874c34
changelog: none Sorry, this is a big one. A lot of interrelated changes and I wanted to put the new utils to use to make sure they are somewhat battle-tested. We may want to divide some of the lint-specific refactoring commits into batches for smaller reviewing tasks. I could also split into more PRs. Introduces a bunch of new utils at `clippy_utils::macros::...`. Please read through the docs and give any feedback! I'm happy to introduce `MacroCall` and various functions to retrieve an instance. It feels like the missing puzzle piece. I'm also introducing `ExpnId` from rustc as "useful for Clippy too". `@rust-lang/clippy` Fixes #7843 by not parsing every node of macro implementations, at least the major offenders. I probably want to get rid of `is_expn_of` at some point.
55 lines
2.3 KiB
Plaintext
55 lines
2.3 KiB
Plaintext
error: used `unimplemented!()`, `unreachable!()`, `todo!()`, `panic!()` or assertion in a function that returns `Result`
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--> $DIR/panic_in_result_fn_assertions.rs:7:5
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LL | / fn result_with_assert_with_message(x: i32) -> Result<bool, String> // should emit lint
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LL | | {
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LL | | assert!(x == 5, "wrong argument");
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LL | | Ok(true)
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LL | | }
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| |_____^
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= note: `-D clippy::panic-in-result-fn` implied by `-D warnings`
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= help: `unimplemented!()`, `unreachable!()`, `todo!()`, `panic!()` or assertions should not be used in a function that returns `Result` as `Result` is expected to return an error instead of crashing
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note: return Err() instead of panicking
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--> $DIR/panic_in_result_fn_assertions.rs:9:9
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LL | assert!(x == 5, "wrong argument");
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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error: used `unimplemented!()`, `unreachable!()`, `todo!()`, `panic!()` or assertion in a function that returns `Result`
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--> $DIR/panic_in_result_fn_assertions.rs:13:5
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LL | / fn result_with_assert_eq(x: i32) -> Result<bool, String> // should emit lint
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LL | | {
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LL | | assert_eq!(x, 5);
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LL | | Ok(true)
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LL | | }
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| |_____^
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= help: `unimplemented!()`, `unreachable!()`, `todo!()`, `panic!()` or assertions should not be used in a function that returns `Result` as `Result` is expected to return an error instead of crashing
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note: return Err() instead of panicking
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--> $DIR/panic_in_result_fn_assertions.rs:15:9
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LL | assert_eq!(x, 5);
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| ^^^^^^^^^^^^^^^^
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error: used `unimplemented!()`, `unreachable!()`, `todo!()`, `panic!()` or assertion in a function that returns `Result`
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--> $DIR/panic_in_result_fn_assertions.rs:19:5
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LL | / fn result_with_assert_ne(x: i32) -> Result<bool, String> // should emit lint
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LL | | {
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LL | | assert_ne!(x, 1);
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LL | | Ok(true)
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LL | | }
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| |_____^
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= help: `unimplemented!()`, `unreachable!()`, `todo!()`, `panic!()` or assertions should not be used in a function that returns `Result` as `Result` is expected to return an error instead of crashing
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note: return Err() instead of panicking
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--> $DIR/panic_in_result_fn_assertions.rs:21:9
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LL | assert_ne!(x, 1);
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| ^^^^^^^^^^^^^^^^
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error: aborting due to 3 previous errors
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