Support C++ friend declarations for PCH.
This commit 'introduces' a slightly different way to restore the state of the AST object.
It makes PCHDeclReader/PCHDeclWriter friends and gives them access to the private members of the object.
The rationale is to avoid using/modifying the AST interfaces for PCH read/write so that to:
-Avoid complications with objects that have side-effects during creation or when using some setters.
-Not 'pollute' the AST interface with methods only used by the PCH reader/writer
-Allow AST objects to be read-only.
llvm-svn: 107219
diff --git a/clang/test/PCH/cxx-friends.cpp b/clang/test/PCH/cxx-friends.cpp
new file mode 100644
index 0000000..a8d7558
--- /dev/null
+++ b/clang/test/PCH/cxx-friends.cpp
@@ -0,0 +1,13 @@
+// Test this without pch.
+// RUN: %clang_cc1 -include %S/cxx-friends.h -fsyntax-only -verify %s
+
+// Test with pch.
+// RUN: %clang_cc1 -x c++-header -emit-pch -o %t %S/cxx-friends.h
+// RUN: %clang_cc1 -include-pch %t -fsyntax-only -verify %s
+
+class F {
+ void m() {
+ A* a;
+ a->x = 0;
+ }
+};