Aaron Hill af46699f81

Remove Session.used_attrs and move logic to CheckAttrVisitor ...

Instead of updating global state to mark attributes as used,
we now explicitly emit a warning when an attribute is used in
an unsupported position. As a side effect, we are to emit more
detailed warning messages (instead of just a generic "unused" message).

`Session.check_name` is removed, since its only purpose was to mark
the attribute as used. All of the callers are modified to use
`Attribute.has_name`

Additionally, `AttributeType::AssumedUsed` is removed - an 'assumed
used' attribute is implemented by simply not performing any checks
in `CheckAttrVisitor` for a particular attribute.

We no longer emit unused attribute warnings for the `#[rustc_dummy]`
attribute - it's an internal attribute used for tests, so it doesn't
mark sense to treat it as 'unused'.

With this commit, a large source of global untracked state is removed.

2021-08-21 13:27:27 -05:00

..

src

Remove Session.used_attrs and move logic to CheckAttrVisitor

2021-08-21 13:27:27 -05:00

Cargo.toml

rfc3052: Remove authors field from Cargo manifests

2021-07-29 14:56:05 -07:00