Improve name lookup for and template instantiation of declaration

references. There are several smallish fixes here:

  - Make sure we look through template parameter scope when
    determining whether we're parsing a nested class (or nested class
    *template*). This makes sure that we delay parsing the bodies of
    inline member functions until after we're out of the outermost
    class (template) scope.
  - Since the bodies of member functions are always parsed
    "out-of-line", even when they were declared in-line, teach
    unqualified name lookup to look into the (semantic) parents.
  - Use the new InstantiateDeclRef to handle the instantiation of a
    reference to a declaration (in DeclRefExpr), which drastically
    simplifies template instantiation for DeclRefExprs.
  - When we're instantiating a ParmVarDecl, it must be in the current
    instantiation scope, so only look there.

Also, remove the #if 0's and FIXME's from the dynarray example, which
now compiles and executes thanks to Anders and Eli.

llvm-svn: 72481

1 files changed, 27 insertions, 0 deletions

diff --git a/clang/test/SemaTemplate/instantiate-declref.cpp b/clang/test/SemaTemplate/instantiate-declref.cpp
new file mode 100644
index 00000000000..2512df15b13
--- /dev/null
+++ b/clang/test/SemaTemplate/instantiate-declref.cpp
@@ -0,0 +1,27 @@
+// RUN: clang-cc -fsyntax-only %s
+
+namespace N {
+  struct Outer {
+    struct Inner {
+      template<typename T>
+      struct InnerTemplate {
+        struct VeryInner {
+          typedef T type;
+
+          static enum K1 { K1Val = sizeof(T) } Kind1;
+          // FIXME: Remove the name K2, below
+          static enum K2 { K2Val = sizeof(T)*2 } Kind2;
+
+          void foo() {
+            K1 k1 = K1Val;
+            Kind1 = K1Val;
+            Outer::Inner::InnerTemplate<type>::VeryInner::Kind2 = K2Val;
+          }
+        };
+      };
+    };
+  };
+}
+
+typedef int INT;
+template struct N::Outer::Inner::InnerTemplate<INT>::VeryInner;