Fix plugin options (#3003)

aws · Apr 1, 2024 · d276c0b · d276c0b
1 parent 7b62cc4
commit d276c0b
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diff --git a/gems/aws-sdk-core/CHANGELOG.md b/gems/aws-sdk-core/CHANGELOG.md
@@ -1,5 +1,6 @@
 Unreleased Changes
 ------------------
+* Issue - Performance optimization: ensure presence and order of instance variables in `PluginOptions` (#3002).
 
 3.191.5 (2024-03-26)
 ------------------

diff --git a/gems/aws-sdk-core/lib/seahorse/client/plugin.rb b/gems/aws-sdk-core/lib/seahorse/client/plugin.rb
@@ -111,7 +111,15 @@ class PluginOption
 
         def initialize(name, options = {})
           @name = name
+          # prevent unstable object shapes by ensuring
+          # order and presence of instance variables
+          @default = nil
+          @default_block = nil
+          @required = nil
+          @doc_type = nil
           @doc_default = nil
+          @docstring = nil
+          @rbs_type = nil
           options.each_pair do |opt_name, opt_value|
             self.send("#{opt_name}=", opt_value)
           end