# 0.1.23 (October 6, 2022) This release of `tracing-attributes` fixes a bug where compiler diagnostic spans for type errors in `#[instrument]`ed `async fn`s have the location of the `#[instrument]` attribute rather than the location of the actual error, and a bug where inner attributes in `#[instrument]`ed functions would cause a compiler error. ### Fixed - Fix incorrect handling of inner attributes in `#[instrument]`ed functions ([#2307]) - Add fake return to improve spans generated for type errors in `async fn`s ([#2270]) - Updated `syn` dependency to fix compilation with `-Z minimal-versions` ([#2246]) Thanks to new contributors @compiler-errors and @e-nomem, as well as @CAD97, for contributing to this release! [#2307]: https://github.com/tokio-rs/tracing/pull/2307 [#2270]: https://github.com/tokio-rs/tracing/pull/2270 [#2246]: https://github.com/tokio-rs/tracing/pull/2246 # 0.1.22 (July 1, 2022) This release fixes an issue where using the `err` or `ret` arguments to `#[instrument]` along with an overridden target, such as ```rust #[instrument(target = "...", err, ret)] ``` would not propagate the overridden target to the events generated for errors/return values. ### Fixed - Error and return value events generated by `#[instrument(err)]` or `#[instrument(ret)]` not inheriting an overridden target ([#2184]) - Incorrect default level in documentation ([#2119]) Thanks to new contributor @tbraun96 for contributing to this release! [#2184]: https://github.com/tokio-rs/tracing/pull/2184 [#2119]: https://github.com/tokio-rs/tracing/pull/2119 # 0.1.21 (April 26, 2022) This release adds support for setting explicit parent and follows-from spans in the `#[instrument]` attribute. ### Added - `#[instrument(follows_from = ...)]` argument for setting one or more follows-from span ([#2093]) - `#[instrument(parent = ...)]` argument for overriding the generated span's parent ([#2091]) ### Fixed - Extra braces around `async` blocks in expanded code (causes a Clippy warning) ([#2090]) - Broken documentation links ([#2068], [#2077]) Thanks to @jarrodldavis, @ben0x539, and new contributor @jswrenn for contributing to this release! [#2093]: https://github.com/tokio-rs/tracing/pull/2093 [#2091]: https://github.com/tokio-rs/tracing/pull/2091 [#2090]: https://github.com/tokio-rs/tracing/pull/2090 [#2077]: https://github.com/tokio-rs/tracing/pull/2077 [#2068]: https://github.com/tokio-rs/tracing/pull/2068 # 0.1.20 (March 8, 2022) ### Fixed - Compilation failure with `--minimal-versions` due to a too-permissive `syn` dependency ([#1960]) ### Changed - Bumped minimum supported Rust version (MSRV) to 1.49.0 ([#1913]) Thanks to new contributor @udoprog for contributing to this release! [#1960]: https://github.com/tokio-rs/tracing/pull/1960 [#1913]: https://github.com/tokio-rs/tracing/pull/1913 # 0.1.19 (February 3, 2022) This release introduces a new `#[instrument(ret)]` argument to emit an event with the return value of an instrumented function. ### Added - `#[instrument(ret)]` to record the return value of a function ([#1716]) - added `err(Debug)` argument to cause `#[instrument(err)]` to record errors with `Debug` rather than `Display ([#1631]) ### Fixed - incorrect code generation for functions returning async blocks ([#1866]) - incorrect diagnostics when using `rust-analyzer` ([#1634]) Thanks to @Swatinem, @hkmatsumoto, @cynecx, and @ciuncan for contributing to this release! [#1716]: https://github.com/tokio-rs/tracing/pull/1716 [#1631]: https://github.com/tokio-rs/tracing/pull/1631 [#1634]: https://github.com/tokio-rs/tracing/pull/1634 [#1866]: https://github.com/tokio-rs/tracing/pull/1866 # 0.1.18 (October 5, 2021) This release fixes issues introduced in v0.1.17. ### Fixed - fixed mismatched types compiler error that may occur when using `#[instrument]` on an `async fn` that returns an `impl Trait` value that includes a closure ([#1616]) - fixed false positives for `clippy::suspicious_else_formatting` warnings due to rust-lang/rust-clippy#7760 and rust-lang/rust-clippy#6249 ([#1617]) - fixed `clippy::let_unit_value` lints when using `#[instrument]` ([#1614]) [#1617]: https://github.com/tokio-rs/tracing/pull/1617 [#1616]: https://github.com/tokio-rs/tracing/pull/1616 [#1614]: https://github.com/tokio-rs/tracing/pull/1614 # 0.1.17 (YANKED) (October 1, 2021) This release significantly improves performance when `#[instrument]`-generated spans are below the maximum enabled level. ### Added - improve performance when skipping `#[instrument]`-generated spans below the max level ([#1600], [#1605]) Thanks to @oli-obk for contributing to this release! [#1600]: https://github.com/tokio-rs/tracing/pull/1600 [#1605]: https://github.com/tokio-rs/tracing/pull/1605 # 0.1.16 (September 13, 2021) This release adds a new `#[instrument(skip_all)]` option to skip recording *all* arguments to an instrumented function as fields. Additionally, it adds support for recording arguments that are `tracing` primitive types as typed values, rather than as `fmt::Debug`. ### Added - add `skip_all` option to `#[instrument]` ([#1548]) - record primitive types as primitive values rather than as `fmt::Debug` ([#1378]) - added support for `f64`s as typed values ([#1522]) Thanks to @Folyd and @jsgf for contributing to this release! [#1548]: https://github.com/tokio-rs/tracing/pull/1548 [#1378]: https://github.com/tokio-rs/tracing/pull/1378 [#1522]: https://github.com/tokio-rs/tracing/pull/1524 # 0.1.15 (March 12, 2021) ### Fixed - `#[instrument]` on functions returning `Box::pin`ned futures incorrectly skipping function bodies prior to returning a future ([#1297]) Thanks to @nightmared for contributing to this release! [#1297]: https://github.com/tokio-rs/tracing/pull/1297 # 0.1.14 (March 10, 2021) ### Fixed - Compatibility between `#[instrument]` and `async-trait` v0.1.43 and newer ([#1228]) Thanks to @nightmared for lots of hard work on this fix! [#1228]: https://github.com/tokio-rs/tracing/pull/1228 # 0.1.13 (February 17, 2021) ### Fixed - Compiler error when using `#[instrument(err)]` on functions which return `impl Trait` ([#1236]) [#1236]: https://github.com/tokio-rs/tracing/pull/1236 # 0.1.12 (February 4, 2021) ### Fixed - Compiler error when using `#[instrument(err)]` on functions with mutable parameters ([#1167]) - Missing function visibility modifier when using `#[instrument]` with `async-trait` ([#977]) - Multiple documentation fixes and improvements ([#965], [#981], [#1215]) ### Changed - `tracing-futures` dependency is no longer required when using `#[instrument]` on async functions ([#808]) Thanks to @nagisa, @Txuritan, @TaKO8Ki, and @okready for contributing to this release! [#1167]: https://github.com/tokio-rs/tracing/pull/1167 [#977]: https://github.com/tokio-rs/tracing/pull/977 [#965]: https://github.com/tokio-rs/tracing/pull/965 [#981]: https://github.com/tokio-rs/tracing/pull/981 [#1215]: https://github.com/tokio-rs/tracing/pull/1215 [#808]: https://github.com/tokio-rs/tracing/pull/808 # 0.1.11 (August 18, 2020) ### Fixed - Corrected wrong minimum supported Rust version note in docs (#941) - Removed unused `syn` features (#928) Thanks to new contributor @jhpratt for contributing to this release! # 0.1.10 (August 10, 2020) ### Added - Support for using `self` in field expressions when instrumenting `async-trait` functions (#875) - Several documentation improvements (#832, #897, #911, #913) Thanks to @anton-dutov and @nightmared for contributing to this release! # 0.1.9 (July 8, 2020) ### Added - Support for arbitrary expressions as fields in `#[instrument]` (#672) ### Changed - `#[instrument]` now emits a compiler warning when ignoring unrecognized input (#672, #786) # 0.1.8 (May 13, 2020) ### Added - Support for using `#[instrument]` on methods that are part of [`async-trait`] trait implementations (#711) - Optional `#[instrument(err)]` argument to automatically emit an event if an instrumented function returns `Err` (#637) Thanks to @ilana and @nightmared for contributing to this release! [`async-trait`]: https://crates.io/crates/async-trait # 0.1.7 (February 26, 2020) ### Added - Support for adding arbitrary literal fields to spans generated by `#[instrument]` (#569) - `#[instrument]` now emits a helpful compiler error when attempting to skip a function parameter (#600) Thanks to @Kobzol for contributing to this release! # 0.1.6 (December 20, 2019) ### Added - Updated documentation (#468) # 0.1.5 (October 22, 2019) ### Added - Support for destructuring in arguments to `#[instrument]`ed functions (#397) - Generated field for `self` parameters when `#[instrument]`ing methods (#397) # 0.1.4 (September 26, 2019) ### Added - Optional `skip` argument to `#[instrument]` for excluding function parameters from generated spans (#359) # 0.1.3 (September 12, 2019) ### Fixed - Fixed `#[instrument]`ed async functions not compiling on `nightly-2019-09-11` or newer (#342) # 0.1.2 (August 19, 2019) ### Changed - Updated `syn` and `quote` dependencies to 1.0 (#292) - Removed direct dependency on `proc-macro2` to avoid potential version conflicts (#296) ### Fixed - Outdated idioms in examples (#271, #273) # 0.1.1 (August 9, 2019) ### Changed - Using the `#[instrument]` attribute on `async fn`s no longer requires a feature flag (#258) ### Fixed - The `#[instrument]` macro now works on generic functions (#262) # 0.1.0 (August 8, 2019) - Initial release