bjoernager/rust
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Make trait_map an Option.

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This commit is contained in:
Camille GILLOT 2021-06-01 21:50:06 +02:00
parent 0839cd5e9a
commit 93b25bd293
2 changed files with 6 additions and 15 deletions
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15
compiler/rustc_resolve/src/lib.rs
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@ -909,9 +909,7 @@ pub struct Resolver<'a> {
/// `CrateNum` resolutions of `extern crate` items.
extern_crate_map: FxHashMap<LocalDefId, CrateNum>,
export_map: ExportMap<LocalDefId>,
trait_map: NodeMap<Vec<TraitCandidate>>,
#[cfg(debug_assertions)]
took_trait_map: bool,
trait_map: Option<NodeMap<Vec<TraitCandidate>>>,
/// A map from nodes to anonymous modules.
/// Anonymous modules are pseudo-modules that are implicitly created around items
@ -1141,12 +1139,7 @@ impl ResolverAstLowering for Resolver<'_> {
}
fn take_trait_map(&mut self) -> NodeMap<Vec<TraitCandidate>> {
#[cfg(debug_assertions)]
{
debug_assert!(!self.took_trait_map);
self.took_trait_map = true;
}
std::mem::take(&mut self.trait_map)
std::mem::replace(&mut self.trait_map, None).unwrap()
}
fn opt_local_def_id(&self, node: NodeId) -> Option<LocalDefId> {
@ -1293,9 +1286,7 @@ impl<'a> Resolver<'a> {
label_res_map: Default::default(),
extern_crate_map: Default::default(),
export_map: FxHashMap::default(),
trait_map: Default::default(),
#[cfg(debug_assertions)]
took_trait_map: false,
trait_map: Some(NodeMap::default()),
underscore_disambiguator: 0,
empty_module,
module_map,