commit 0472c262bcdf0631460c23caefa97963667d8c23
author David Tolnay <dtolnay@gmail.com> Sun Nov 01 21:30:28 2020 -0800
committer David Tolnay <dtolnay@gmail.com> Sun Nov 01 21:30:30 2020 -0800
tree b8292dab0b7eadd852e36fa4e7c8a3768816f9df
parent 169bb47773b665105b30573499f2ce6c4323820f

Flatten a nested if-let

gen/src/alphasort.rs

diff --git a/gen/src/alphasort.rs b/gen/src/alphasort.rs
index 7309aa9..18f2896 100644
--- a/gen/src/alphasort.rs
+++ b/gen/src/alphasort.rs
@@ -27,15 +27,12 @@
     let mut direct = Vec::new();
     let mut nested_namespaces = BTreeMap::new();
     for api in &apis {
-        if let Some(namespace) = api.namespace() {
-            let first_ns_elem = namespace.iter().nth(depth);
-            if let Some(first_ns_elem) = first_ns_elem {
-                nested_namespaces
-                    .entry(first_ns_elem)
-                    .or_insert_with(Vec::new)
-                    .push(*api);
-                continue;
-            }
+        if let Some(first_ns_elem) = api.namespace().and_then(|ns| ns.iter().nth(depth)) {
+            nested_namespaces
+                .entry(first_ns_elem)
+                .or_insert_with(Vec::new)
+                .push(*api);
+            continue;
         }
         direct.push(*api);
     }