## Motivation

Currently, `tracing_subscriber::fmt`'s `FmtContext` type is missing the
`span_scope`, `event_span`, and `event_scope` methods that `Context`
provides. This is a shame; these will make it much easier for users
implementing formatters to iterate over the scope of the event being
formatted correctly. We should expose those methods.

## Solution

This branch adds new methods to `FmtContext`, most of which forward to
the similarly-named `Context` methods. However, because a `FmtContext`
is only constructed when formatting an event, we can also make the event
scope methods a little more ergonomic by storing a ref to the span being
formatted and automatically passing it to `Context::event_scope` and
`Context::event_span`. This means the `FmtContext` can just always return
the current event's scope without the user having to pass it in.

## Motivation

Currently, `tracing_subscriber::fmt`'s `FmtContext` type is missing the
`span_scope`, `event_span`, and `event_scope` methods that `Context`
provides. This is a shame; these will make it much easier for users
implementing formatters to iterate over the scope of the event being
formatted correctly. We should expose those methods.

## Solution

This branch adds new methods to `FmtContext`, most of which forward to
the similarly-named `Context` methods. However, because a `FmtContext`
is only constructed when formatting an event, we can also make the event
scope methods a little more ergonomic by storing a ref to the span being
formatted and automatically passing it to `Context::event_scope` and
`Context::event_span`. This means the `FmtContext` can just always return
the current event's scope without the user having to pass it in.

# 0.3.2 (Nov 19, 2021)

### Fixed

- **fmt**: Fixed `MakeWriter` filtering not working with `BoxMakeWriter`
  ([#1694])

### Added

- **fmt**: `Writer::has_ansi_escapes` method to check if an output
  supports ANSI terminal formatting escape codes ([#1696])
- **fmt**: Added additional ANSI terminal formatting to field formatters
  when supported ([#1702])
- **fmt**: Added `FmtContext::span_scope`, `FmtContext::event_scope`,
  and `FmtContext::parent_span` methods for accessing the current span
  and its scope when formatting an event ([#1728])
- **fmt**: Improved documentation on implementing event formatters
  ([#1727])

[#1694]: #1694
[#1696]: #1696
[#1702]: #1702
[#1728]: #1728
[#1727]: #1727

## Motivation

Currently, `tracing_subscriber::fmt`'s `FmtContext` type is missing the
`span_scope`, `event_span`, and `event_scope` methods that `Context`
provides. This is a shame; these will make it much easier for users
implementing formatters to iterate over the scope of the event being
formatted correctly. We should expose those methods.

## Solution

This branch adds new methods to `FmtContext`, most of which forward to
the similarly-named `Context` methods. However, because a `FmtContext`
is only constructed when formatting an event, we can also make the event
scope methods a little more ergonomic by storing a ref to the span being
formatted and automatically passing it to `Context::event_scope` and
`Context::event_span`. This means the `FmtContext` can just always return
the current event's scope without the user having to pass it in.

# 0.3.2 (Nov 19, 2021)

### Fixed

- **fmt**: Fixed `MakeWriter` filtering not working with `BoxMakeWriter`
  ([tokio-rs#1694])

### Added

- **fmt**: `Writer::has_ansi_escapes` method to check if an output
  supports ANSI terminal formatting escape codes ([tokio-rs#1696])
- **fmt**: Added additional ANSI terminal formatting to field formatters
  when supported ([tokio-rs#1702])
- **fmt**: Added `FmtContext::span_scope`, `FmtContext::event_scope`,
  and `FmtContext::parent_span` methods for accessing the current span
  and its scope when formatting an event ([tokio-rs#1728])
- **fmt**: Improved documentation on implementing event formatters
  ([tokio-rs#1727])

[tokio-rs#1694]: tokio-rs#1694
[tokio-rs#1696]: tokio-rs#1696
[tokio-rs#1702]: tokio-rs#1702
[tokio-rs#1728]: tokio-rs#1728
[tokio-rs#1727]: tokio-rs#1727