diff --git a/src/descriptor.rs b/src/descriptor.rs
index 01110b2..86ff8c0 100644
--- a/src/descriptor.rs
+++ b/src/descriptor.rs
@@ -342,12 +342,26 @@ impl Descriptors {
         self.messages_by_name.get(name).map(|m| &self.messages[m.0])
     }
 
+    /// Iterates over the messages in the descriptor set.
+    ///
+    /// The order of iteration is unspecified.
+    pub fn iter_messages(&self) -> impl Iterator<Item = &MessageDescriptor> {
+        self.messages.iter()
+    }
+
     /// Looks up an enum by its fully qualified name (i.e. `.foo.package.Enum`).
     #[inline]
     pub fn enum_by_name(&self, name: &str) -> Option<&EnumDescriptor> {
         self.enums_by_name.get(name).map(|e| &self.enums[e.0])
     }
 
+    /// Iterates over the enums in the descriptor set.
+    ///
+    /// The order of iteration is unspecified.
+    pub fn iter_enums(&self) -> impl Iterator<Item = &EnumDescriptor> {
+        self.enums.iter()
+    }
+
     /// Adds all types defined in the specified protocol buffer file descriptor set to this
     /// registry.
     pub fn add_file_set_proto(&mut self, file_set_proto: &descriptor::FileDescriptorSet) {