Prepare for adding InvalidType, make 'TypeChecker.isAssignableFromTyp…

…e()' null safe. (#666)
dart-lang · May 10, 2023 · 3d2a85b · 3d2a85b
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diff --git a/source_gen/CHANGELOG.md b/source_gen/CHANGELOG.md
@@ -1,3 +1,7 @@
+## 1.3.2
+
+* Make `TypeChecker.isAssignableFromType()` null safe.
+
 ## 1.3.1
 
 * Always use a Uri in `part of` directives (previously a name would be used if

diff --git a/source_gen/lib/src/type_checker.dart b/source_gen/lib/src/type_checker.dart
@@ -167,8 +167,10 @@ abstract class TypeChecker {
       (element is InterfaceElement && element.allSupertypes.any(isExactlyType));
 
   /// Returns `true` if [staticType] can be assigned to this type.
-  bool isAssignableFromType(DartType staticType) =>
-      isAssignableFrom(staticType.element!);
+  bool isAssignableFromType(DartType staticType) {
+    final element = staticType.element;
+    return element != null && isAssignableFrom(element);
+  }
 
   /// Returns `true` if representing the exact same class as [element].
   bool isExactly(Element element);

diff --git a/source_gen/pubspec.yaml b/source_gen/pubspec.yaml
@@ -1,5 +1,5 @@
 name: source_gen
-version: 1.3.1
+version: 1.3.2
 description: >-
   Source code generation builders and utilities for the Dart build system
 repository: https://github.com/dart-lang/source_gen/tree/master/source_gen