src/librustc/ty/binding.rs

   1 use crate::hir::BindingAnnotation::*;
   2 use crate::hir::BindingAnnotation;
   3 use crate::hir::Mutability;
   4
   5 #[derive(Clone, PartialEq, Eq, RustcEncodable, RustcDecodable, Hash, Debug, Copy)]
   6 pub enum BindingMode {
   7     BindByReference(Mutability),
   8     BindByValue(Mutability),
   9 }
  10
  11 CloneTypeFoldableAndLiftImpls! { BindingMode, }
  12
  13 impl BindingMode {
  14     pub fn convert(ba: BindingAnnotation) -> BindingMode {
  15         match ba {
  16             Unannotated => BindingMode::BindByValue(Mutability::MutImmutable),
  17             Mutable => BindingMode::BindByValue(Mutability::MutMutable),
  18             Ref => BindingMode::BindByReference(Mutability::MutImmutable),
  19             RefMut => BindingMode::BindByReference(Mutability::MutMutable),
  20         }
  21     }
  22 }
  23
  24 impl_stable_hash_for!(enum self::BindingMode {
  25     BindByReference(mutability),
  26     BindByValue(mutability)
  27 });