Add a missing @Nullable annotation.

java-team-github-bot · Error Prone Team · commit 553603f97b00 · 2021-03-24T14:19:25.000-07:00
PiperOrigin-RevId: 364889141
diff --git a/check_api/src/main/java/com/google/errorprone/util/ASTHelpers.java b/check_api/src/main/java/com/google/errorprone/util/ASTHelpers.java
@@ -1024,6 +1024,7 @@ public Tree visitParameterizedType(ParameterizedTypeTree tree, Void unused) {
   }
 
   /** Return the enclosing {@code ClassSymbol} of the given symbol, or {@code null}. */
+  @Nullable
   public static ClassSymbol enclosingClass(Symbol sym) {
     // sym.owner is null in the case of module symbols.
     return sym.owner == null ? null : sym.owner.enclClass();

Original file line number	Diff line number	Diff line change
`@@ -1024,6 +1024,7 @@ public Tree visitParameterizedType(ParameterizedTypeTree tree, Void unused) {`
`1024`	`1024`	`}`
`1025`	`1025`
`1026`	`1026`	`/** Return the enclosing {@code ClassSymbol} of the given symbol, or {@code null}. */`
	`1027`	`+ @Nullable`
`1027`	`1028`	`public static ClassSymbol enclosingClass(Symbol sym) {`
`1028`	`1029`	`// sym.owner is null in the case of module symbols.`
`1029`	`1030`	`return sym.owner == null ? null : sym.owner.enclClass();`