From 2cd00932b9b5403047139ce8cfaa3ae47966f894 Mon Sep 17 00:00:00 2001
From: Douglas Gregor <dgregor@apple.com>
Date: Wed, 17 Feb 2010 21:22:52 +0000
Subject: [PATCH] Implement AST importing of ImplicitParamDecls, despite the
 sad fact that we can't test it yet.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@96516 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/AST/ASTImporter.cpp | 27 +++++++++++++++++++++++++++
 1 file changed, 27 insertions(+)

diff --git a/lib/AST/ASTImporter.cpp b/lib/AST/ASTImporter.cpp
index ffeaa23276..cfcf460e93 100644
--- a/lib/AST/ASTImporter.cpp
+++ b/lib/AST/ASTImporter.cpp
@@ -92,6 +92,7 @@ namespace {
     Decl *VisitFieldDecl(FieldDecl *D);
     Decl *VisitObjCIvarDecl(ObjCIvarDecl *D);
     Decl *VisitVarDecl(VarDecl *D);
+    Decl *VisitImplicitParamDecl(ImplicitParamDecl *D);
     Decl *VisitParmVarDecl(ParmVarDecl *D);
     Decl *VisitObjCMethodDecl(ObjCMethodDecl *D);
     Decl *VisitObjCProtocolDecl(ObjCProtocolDecl *D);
@@ -1989,6 +1990,32 @@ Decl *ASTNodeImporter::VisitVarDecl(VarDecl *D) {
   return ToVar;
 }
 
+Decl *ASTNodeImporter::VisitImplicitParamDecl(ImplicitParamDecl *D) {
+  // Parameters are created in the translation unit's context, then moved
+  // into the function declaration's context afterward.
+  DeclContext *DC = Importer.getToContext().getTranslationUnitDecl();
+  
+  // Import the name of this declaration.
+  DeclarationName Name = Importer.Import(D->getDeclName());
+  if (D->getDeclName() && !Name)
+    return 0;
+  
+  // Import the location of this declaration.
+  SourceLocation Loc = Importer.Import(D->getLocation());
+  
+  // Import the parameter's type.
+  QualType T = Importer.Import(D->getType());
+  if (T.isNull())
+    return 0;
+  
+  // Create the imported parameter.
+  ImplicitParamDecl *ToParm
+    = ImplicitParamDecl::Create(Importer.getToContext(), DC,
+                                Loc, Name.getAsIdentifierInfo(),
+                                T);
+  return Importer.Imported(D, ToParm);
+}
+
 Decl *ASTNodeImporter::VisitParmVarDecl(ParmVarDecl *D) {
   // Parameters are created in the translation unit's context, then moved
   // into the function declaration's context afterward.
-- 
2.40.0