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f66e825f73
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. |
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| .. | ||
| codegen_fn_attrs.rs | ||
| cstore.rs | ||
| dependency_format.rs | ||
| exported_symbols.rs | ||
| lang_items.rs | ||
| limits.rs | ||
| mod.rs | ||
| privacy.rs | ||
| region.rs | ||
| resolve_lifetime.rs | ||
| stability.rs | ||