rustc_middle::middle

Module lang_items

source
Expand description

Detecting lang items.

Language items are items that represent concepts intrinsic to the language itself. Examples are:

  • Traits that specify “kinds”; e.g., Sync, Send.
  • Traits that represent operators; e.g., Add, Sub, Index.
  • Functions called by the compiler itself.

Functions§

  • required
    Returns true if the specified lang_item must be present for this compilation.