Add comment into Types.isAssignable

gselzer · gselzer · commit e7f7dda12c6e · 2024-03-20T13:08:51.000-05:00
This particular change is very difficult to test, so in the interest of
time I'm just going to leave some broad comments
diff --git a/scijava-types/src/main/java/org/scijava/types/Types.java b/scijava-types/src/main/java/org/scijava/types/Types.java
@@ -1922,12 +1922,14 @@ else if (!isAssignable(fromResolved == null ? fromTypeArg
 				// typeVarAssigns.
 				// Effectively toResolved = fromResolved.
 				if (toTypeArg == null && toResolved == null && typeVarAssigns != null) {
+					// bind unbounded to a concrete type
 					if (fromResolved != null) {
 						TypeVariable<?> unbounded = (TypeVariable<?>) toTypeVarAssigns.get(
 							var);
 						typeVarAssigns.put(unbounded, fromResolved);
 						toResolved = fromResolved;
 					}
+					// bind unbounded to another type variable
 					else {
 						typeVarAssigns.put((TypeVariable<?>) toTypeVarAssigns.get(var),
 							fromTypeVarAssigns.get(var));
