Slightly optimize Resolver::krate

Veykril · Veykril · commit 17691ee974c8 · 2022-04-15T20:17:50.000+02:00
diff --git a/crates/hir_def/src/resolver.rs b/crates/hir_def/src/resolver.rs
@@ -448,7 +448,13 @@ impl Resolver {
     }
 
     pub fn krate(&self) -> CrateId {
-        self.module_scope().0.krate()
+        self.scopes
+            .get(0)
+            .and_then(|scope| match scope {
+                Scope::ModuleScope(m) => Some(m.def_map.krate()),
+                _ => None,
+            })
+            .expect("module scope invariant violated")
     }
 
     pub fn where_predicates_in_scope(

Original file line number	Diff line number	Diff line change
`@@ -448,7 +448,13 @@ impl Resolver {`
`448`	`448`	`}`
`449`	`449`
`450`	`450`	`pub fn krate(&self) -> CrateId {`
`451`		`- self.module_scope().0.krate()`
	`451`	`+ self.scopes`
	`452`	`+ .get(0)`
	`453`	`+ .and_then(\|scope\| match scope {`
	`454`	`+ Scope::ModuleScope(m) => Some(m.def_map.krate()),`
	`455`	`+ _ => None,`
	`456`	`+ })`
	`457`	`+ .expect("module scope invariant violated")`
`452`	`458`	`}`
`453`	`459`
`454`	`460`	`pub fn where_predicates_in_scope(`