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Switch to FnvHashMap

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This commit is contained in:
Niko Matsakis 2015-03-18 07:54:31 -04:00
parent a6d9930525
commit e78550bf88
1 changed files with 4 additions and 4 deletions
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8
src/librustc/middle/traits/select.rs
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@ -39,10 +39,10 @@ use middle::infer;
use middle::infer::{InferCtxt, TypeFreshener};
use middle::ty_fold::TypeFoldable;
use std::cell::RefCell;
use std::collections::hash_map::HashMap;
use std::rc::Rc;
use syntax::{abi, ast};
use util::common::ErrorReported;
use util::nodemap::FnvHashMap;
use util::ppaux::Repr;
pub struct SelectionContext<'cx, 'tcx:'cx> {
@ -86,8 +86,8 @@ struct TraitObligationStack<'prev, 'tcx: 'prev> {
#[derive(Clone)]
pub struct SelectionCache<'tcx> {
hashmap: RefCell<HashMap<Rc<ty::TraitRef<'tcx>>,
SelectionResult<'tcx, SelectionCandidate<'tcx>>>>,
hashmap: RefCell<FnvHashMap<Rc<ty::TraitRef<'tcx>>,
SelectionResult<'tcx, SelectionCandidate<'tcx>>>>,
}
pub enum MethodMatchResult {
@ -2634,7 +2634,7 @@ impl<'tcx> Repr<'tcx> for SelectionCandidate<'tcx> {
impl<'tcx> SelectionCache<'tcx> {
pub fn new() -> SelectionCache<'tcx> {
SelectionCache {
hashmap: RefCell::new(HashMap::new())
hashmap: RefCell::new(FnvHashMap())
}
}
}