Add annotations method in TypeSystem nodes

Summary: add annotations method to get the map directly

Reviewed By: pranavtbhat

Differential Revision: D79856931

fbshipit-source-id: 15edf3a0fe4c972122771854428655cce62109cb

Author: thedavekwon

third-party/thrift/src/thrift/lib/cpp2/dynamic/TypeSystem.h

@@ -854,6 +854,8 @@ class FieldDefinition final : folly::MoveOnly {
         : nullptr;
   }
 
+  const AnnotationsMap& annotations() const noexcept { return annotations_; }
+
   const SerializableRecord* getAnnotationOrNull(UriView uri) const {
     return folly::get_ptr(annotations_, uri);
   }
@@ -984,6 +986,8 @@ class StructuredNode : public DefinitionNode {
     return FastFieldHandle::invalid();
   }
 
+  const AnnotationsMap& annotations() const noexcept { return annotations_; }
+
   const SerializableRecord* getAnnotationOrNull(UriView uri) const {
     return folly::get_ptr(annotations_, uri);
   }
@@ -1033,13 +1037,16 @@ class EnumNode final : folly::MoveOnly, public DefinitionNode {
     friend bool operator!=(const Value& lhs, const Value& rhs) noexcept {
       return !(lhs == rhs);
     }
+    const AnnotationsMap& annotations() const noexcept { return annotations_; }
     const SerializableRecord* getAnnotationOrNull(UriView uri) const {
       return folly::get_ptr(annotations_, uri);
     }
   };
 
   folly::span<const Value> values() const noexcept { return values_; }
 
+  const AnnotationsMap& annotations() const noexcept { return annotations_; }
+
   const SerializableRecord* getAnnotationOrNull(UriView uri) const {
     return folly::get_ptr(annotations_, uri);
   }
@@ -1059,6 +1066,8 @@ class OpaqueAliasNode final : folly::MoveOnly, public DefinitionNode {
  public:
   const TypeRef& targetType() const noexcept { return targetType_; }
 
+  const AnnotationsMap& annotations() const noexcept { return annotations_; }
+
   const SerializableRecord* getAnnotationOrNull(UriView uri) const {
     return folly::get_ptr(annotations_, uri);
   }