Merge branch 'master' into checker-any

CHANGELOG.md

@@ -8,7 +8,7 @@
 * `TypeChecker#annotations...`-methods now throw a `StateError` if one or more
   annotations on an element are not resolvable. This is usually a sign of a
   mispelling, missing import, or missing dependency.
-  
+
 * Added `TypeChecker.any`, which delegates to multiple other `TypeChecker`
   implementations when making a type check.
 

lib/src/type_checker.dart

@@ -92,6 +92,16 @@ abstract class TypeChecker {
       .map(_checkedConstantValue)
       .where((a) => a?.type != null && isExactlyType(a.type));
 
+  /// Returns annotating constants on [element] assignable to this type.
+  Iterable<DartObject> annotationsOf(Element element) => element.metadata
+      .map((a) => a.computeConstantValue())
+      .where((a) => isAssignableFromType(a.type));
+
+  /// Returns annotating constants on [element] of exactly this type.
+  Iterable<DartObject> annotationsOfExact(Element element) => element.metadata
+      .map((a) => a.computeConstantValue())
+      .where((a) => isExactlyType(a.type));
+
   /// Returns `true` if the type of [element] can be assigned to this type.
   bool isAssignableFrom(Element element) =>
       isExactly(element) || _getAllSupertypes(element).any(isExactlyType);