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use ich::StableHashingContext;
use hir::HirId;
use util::nodemap::FxHashSet;
use rustc_data_structures::stable_hasher::{HashStable, StableHasher,
StableHasherResult};
#[derive(Copy, Clone, Debug, RustcEncodable, RustcDecodable)]
pub enum SignalledError { SawSomeError, NoErrorsSeen }
impl_stable_hash_for!(enum self::SignalledError { SawSomeError, NoErrorsSeen });
#[derive(Debug, RustcEncodable, RustcDecodable)]
pub struct BorrowCheckResult {
pub used_mut_nodes: FxHashSet<HirId>,
pub signalled_any_error: SignalledError,
}
impl<'a> HashStable<StableHashingContext<'a>> for BorrowCheckResult {
fn hash_stable<W: StableHasherResult>(&self,
hcx: &mut StableHashingContext<'a>,
hasher: &mut StableHasher<W>) {
let BorrowCheckResult {
ref used_mut_nodes,
ref signalled_any_error,
} = *self;
used_mut_nodes.hash_stable(hcx, hasher);
signalled_any_error.hash_stable(hcx, hasher);
}
}