| // Copyright 2017 The Rust Project Developers. See the COPYRIGHT |
| // file at the top-level directory of this distribution and at |
| // http://rust-lang.org/COPYRIGHT. |
| // |
| // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or |
| // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license |
| // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your |
| // option. This file may not be copied, modified, or distributed |
| // except according to those terms. |
| |
| use hir::BindingAnnotation::*; |
| use hir::BindingAnnotation; |
| use hir::Mutability; |
| |
| #[derive(Clone, PartialEq, Eq, RustcEncodable, RustcDecodable, Hash, Debug, Copy)] |
| pub enum BindingMode { |
| BindByReference(Mutability), |
| BindByValue(Mutability), |
| } |
| |
| CloneTypeFoldableAndLiftImpls! { BindingMode, } |
| |
| impl BindingMode { |
| pub fn convert(ba: BindingAnnotation) -> BindingMode { |
| match ba { |
| Unannotated => BindingMode::BindByValue(Mutability::MutImmutable), |
| Mutable => BindingMode::BindByValue(Mutability::MutMutable), |
| Ref => BindingMode::BindByReference(Mutability::MutImmutable), |
| RefMut => BindingMode::BindByReference(Mutability::MutMutable), |
| } |
| } |
| } |
| |
| impl_stable_hash_for!(enum self::BindingMode { |
| BindByReference(mutability), |
| BindByValue(mutability) |
| }); |