From f34da7a658ccfa94718480b02d84abf5f27a4fed Mon Sep 17 00:00:00 2001
From: Fred Hornsey <hornseyf@objectcomputing.com>
Date: Wed, 28 Nov 2018 18:17:40 -0600
Subject: tao_idl: Access Annotations From Typedef Chains

---
 TAO/TAO_IDL/ast/ast_decl.cpp      | 11 +++++++++++
 TAO/TAO_IDL/ast/ast_typedef.cpp   | 39 ++++++++++++++++++++++++++++++++++++++-
 TAO/TAO_IDL/include/ast_decl.h    |  7 +++++++
 TAO/TAO_IDL/include/ast_typedef.h | 10 ++++++++++
 4 files changed, 66 insertions(+), 1 deletion(-)

diff --git a/TAO/TAO_IDL/ast/ast_decl.cpp b/TAO/TAO_IDL/ast/ast_decl.cpp
index 6dea30ae484..e12813d44f0 100644
--- a/TAO/TAO_IDL/ast/ast_decl.cpp
+++ b/TAO/TAO_IDL/ast/ast_decl.cpp
@@ -1662,3 +1662,14 @@ AST_Decl::should_be_dumped () const
   bool is_builtin = builtin ();
   return !is_builtin || (is_builtin && idl_global->dump_builtins_);
 }
+
+AST_Annotation_Appls &
+AST_Decl::annotations ()
+{
+  if (!annotation_appls_)
+    {
+      annotation_appls_ = new AST_Annotation_Appls;
+    }
+
+  return *annotation_appls_;
+}
diff --git a/TAO/TAO_IDL/ast/ast_typedef.cpp b/TAO/TAO_IDL/ast/ast_typedef.cpp
index b539c8d53dc..760bf9b55c7 100644
--- a/TAO/TAO_IDL/ast/ast_typedef.cpp
+++ b/TAO/TAO_IDL/ast/ast_typedef.cpp
@@ -89,12 +89,17 @@ AST_Typedef::AST_Typedef (AST_Type *bt,
               n),
     AST_Field (AST_Decl::NT_typedef,
                bt,
-               n)
+               n),
+    cached_annotations_ (0)
 {
 }
 
 AST_Typedef::~AST_Typedef (void)
 {
+  if (!cached_annotations_)
+    {
+      delete cached_annotations_;
+    }
 }
 
 // Given a typedef node, traverse the chain of base types until they are no
@@ -193,3 +198,35 @@ AST_Typedef::destroy (void)
 }
 
 IMPL_NARROW_FROM_DECL(AST_Typedef)
+
+AST_Annotation_Appls &
+AST_Typedef::annotations ()
+{
+  if (!cached_annotations_)
+    {
+      cached_annotations_ = new AST_Annotation_Appls;
+
+      if (base_type ())
+        {
+          AST_Annotation_Appls &next = base_type ()->annotations ();
+          for (size_t i = 0; i < next.size (); i++)
+            {
+              cached_annotations_->push_back (next[i]);
+            }
+        }
+
+      /*
+       * Done after so it's easier for later annotations to override
+       * older ones.
+       */
+      if (annotation_appls ()) {
+        AST_Annotation_Appls &appls = *annotation_appls ();
+        for (size_t i = 0; i < appls.size (); i++)
+          {
+            cached_annotations_->push_back (appls[i]);
+          }
+      }
+    }
+
+  return *cached_annotations_;
+}
diff --git a/TAO/TAO_IDL/include/ast_decl.h b/TAO/TAO_IDL/include/ast_decl.h
index b38dd61d0da..787dc029c20 100644
--- a/TAO/TAO_IDL/include/ast_decl.h
+++ b/TAO/TAO_IDL/include/ast_decl.h
@@ -384,6 +384,13 @@ public:
    */
   virtual bool should_be_dumped () const;
 
+  /**
+   * Get Annotation Vector Reference.
+   * If this is a typedef, it includes recursively acquired annotations from
+   * the possible chain of direct typedefs.
+   */
+  virtual AST_Annotation_Appls &annotations ();
+
 protected:
   // These are not private because they're used by
   // be_predefined_type' constructor and can be called
diff --git a/TAO/TAO_IDL/include/ast_typedef.h b/TAO/TAO_IDL/include/ast_typedef.h
index b14fef60d63..ea1f28cba3b 100644
--- a/TAO/TAO_IDL/include/ast_typedef.h
+++ b/TAO/TAO_IDL/include/ast_typedef.h
@@ -118,9 +118,19 @@ public:
 
   virtual bool dump_annotations_inline () const { return true; }
 
+  /**
+   * Recursively acquired annotations from typedefs.
+   */
+  virtual AST_Annotation_Appls &annotations ();
+
 protected:
   virtual int compute_size_type (void);
   // Compute the size type if it is unknown.
+
+  /**
+   * Cache of Recursively acquired annotations from typedefs.
+   */
+  AST_Annotation_Appls *cached_annotations_;
 };
 
 #endif           // _AST_TYPEDEF_AST_TYPEDEF_HH
-- 
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