Module rustc_middle::middle::lang_items

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Expand description

Detecting language 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.