Module diagnostic_items

Detecting diagnostic items.

Diagnostic items are items that are not language-inherent, but can reasonably be expected to exist for diagnostic purposes. This allows diagnostic authors to refer to specific items directly, without having to guess module paths and crates. Examples are:

• Traits like Debug, that have no bearing on language semantics

• Compiler internal types like Ty and TyCtxt

Functions

• all_diagnostic_items 🔒
  Traverse and collect all the diagnostic items in all crates.
• collect_item 🔒
• diagnostic_items 🔒
  Traverse and collect the diagnostic items in the current
• extract 🔒
  Extract the first rustc_diagnostic_item = "$name" out of a list of attributes.
• observe_item 🔒
• provide 🔒
• report_duplicate_item 🔒