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Remove special-casing from TyCtxt::impl_of_method.

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We can do this now that opt_associated_item doesn't have any panicking paths.
This commit is contained in:
Adam Perry 2020-03-22 16:59:02 -07:00
parent 97da6dae41
commit 69bd46a6a1
1 changed files with 2 additions and 12 deletions
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14
src/librustc/ty/mod.rs
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@ -35,7 +35,7 @@ use rustc_data_structures::stable_hasher::{HashStable, StableHasher};
use rustc_data_structures::sync::{self, par_iter, Lrc, ParallelIterator};
use rustc_hir as hir;
use rustc_hir::def::{CtorKind, CtorOf, DefKind, Namespace, Res};
use rustc_hir::def_id::{CrateNum, DefId, DefIdMap, LocalDefId, CRATE_DEF_INDEX, LOCAL_CRATE};
use rustc_hir::def_id::{CrateNum, DefId, DefIdMap, LocalDefId, CRATE_DEF_INDEX};
use rustc_hir::{Constness, GlobMap, Node, TraitMap};
use rustc_index::vec::{Idx, IndexVec};
use rustc_macros::HashStable;
@ -3054,17 +3054,7 @@ impl<'tcx> TyCtxt<'tcx> {
/// If the given defid describes a method belonging to an impl, returns the
/// `DefId` of the impl that the method belongs to; otherwise, returns `None`.
pub fn impl_of_method(self, def_id: DefId) -> Option<DefId> {
let item = if def_id.krate != LOCAL_CRATE {
if let Some(DefKind::AssocFn) = self.def_kind(def_id) {
Some(self.associated_item(def_id))
} else {
None
}
} else {
self.opt_associated_item(def_id)
};
item.and_then(|trait_item| match trait_item.container {
self.opt_associated_item(def_id).and_then(|trait_item| match trait_item.container {
TraitContainer(_) => None,
ImplContainer(def_id) => Some(def_id),
})