compiler/rustc_middle/src/ty/binding.rs

   1 use rustc_hir::BindingAnnotation;
   2 use rustc_hir::BindingAnnotation::*;
   3 use rustc_hir::Mutability;
   4
   5 #[derive(Clone, PartialEq, TyEncodable, TyDecodable, Debug, Copy, HashStable)]
   6 pub enum BindingMode {
   7     BindByReference(Mutability),
   8     BindByValue(Mutability),
   9 }
  10
  11 TrivialTypeFoldableAndLiftImpls! { BindingMode, }
  12
  13 impl BindingMode {
  14     pub fn convert(ba: BindingAnnotation) -> BindingMode {
  15         match ba {
  16             Unannotated => BindingMode::BindByValue(Mutability::Not),
  17             Mutable => BindingMode::BindByValue(Mutability::Mut),
  18             Ref => BindingMode::BindByReference(Mutability::Not),
  19             RefMut => BindingMode::BindByReference(Mutability::Mut),
  20         }
  21     }
  22 }