rust-clippy/tests/ui/doc_errors.stderr
RobbieClarken f5d0a452ba Add lint for pub fns returning a Result without documenting errors
The Rust Book recommends that functions that return a `Result` type have
a doc comment with an `# Errors` section describing the kind of errors
that can be returned
(https://doc.rust-lang.org/book/ch14-02-publishing-to-crates-io.html#commonly-used-sections).
This change adds a lint to enforce this. The lint is allow by default;
it can be enabled with `#![warn(clippy::missing_errors_doc)]`.

Closes #4854.
2019-12-06 17:19:05 +10:30

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error: docs for function returning `Result` missing `# Errors` section
--> $DIR/doc_errors.rs:5:1
|
LL | / pub fn pub_fn_missing_errors_header() -> Result<(), ()> {
LL | | unimplemented!();
LL | | }
| |_^
|
= note: `-D clippy::missing-errors-doc` implied by `-D warnings`
error: docs for function returning `Result` missing `# Errors` section
--> $DIR/doc_errors.rs:10:1
|
LL | / pub fn pub_fn_returning_io_result() -> io::Result<()> {
LL | | unimplemented!();
LL | | }
| |_^
error: docs for function returning `Result` missing `# Errors` section
--> $DIR/doc_errors.rs:29:5
|
LL | / pub fn pub_method_missing_errors_header() -> Result<(), ()> {
LL | | unimplemented!();
LL | | }
| |_____^
error: docs for function returning `Result` missing `# Errors` section
--> $DIR/doc_errors.rs:47:5
|
LL | fn trait_method_missing_errors_header() -> Result<(), ()>;
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
error: aborting due to 4 previous errors