Update UsingDecl, UnresolvedUsingTypenameDecl, and

UnresolvedUsingValueDecl to use NestedNameSpecifierLoc rather than the
extremely-lossy NestedNameSpecifier/SourceRange pair it used to use,
improving source-location information.

Various infrastructure updates to support NestedNameSpecifierLoc:
  - AST/PCH (de-)serialization
  - Recursive AST visitor
  - libclang traversal (including the first tests of this
    functionality)



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126459 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 42 insertions, 0 deletions

diff --git a/test/Index/annotate-nested-name-specifier.cpp b/test/Index/annotate-nested-name-specifier.cpp
new file mode 100644
index 0000000000..13bcc98db5
--- /dev/null
+++ b/test/Index/annotate-nested-name-specifier.cpp
@@ -0,0 +1,42 @@
+namespace outer {
+  namespace inner {
+    template<typename T>
+    struct vector {
+      typedef T* iterator;
+    };
+  }
+}
+
+namespace outer_alias = outer;
+
+struct X { };
+
+using outer_alias::inner::vector;
+
+struct X_vector : outer_alias::inner::vector<X> {
+  using outer_alias::inner::vector<X>::iterator;
+};
+
+
+
+// RUN: c-index-test -test-annotate-tokens=%s:13:1:19:1 %s | FileCheck %s
+
+// CHECK: Keyword: "using" [14:1 - 14:6] UsingDeclaration=vector[4:12]
+// CHECK: Identifier: "outer_alias" [14:7 - 14:18] NamespaceRef=outer_alias:10:11
+// CHECK: Punctuation: "::" [14:18 - 14:20] UsingDeclaration=vector[4:12]
+// CHECK: Identifier: "inner" [14:20 - 14:25] NamespaceRef=inner:2:13
+// CHECK: Punctuation: "::" [14:25 - 14:27] UsingDeclaration=vector[4:12]
+// CHECK: Identifier: "vector" [14:27 - 14:33] OverloadedDeclRef=vector[4:12]
+// CHECK: Punctuation: ";" [14:33 - 14:34]
+// FIXME: Base specifiers, too
+// CHECK: Keyword: "using" [17:3 - 17:8] UsingDeclaration=iterator[5:18]
+// CHECK: Identifier: "outer_alias" [17:9 - 17:20] NamespaceRef=outer_alias:10:11
+// CHECK: Punctuation: "::" [17:20 - 17:22] UsingDeclaration=iterator[5:18]
+// CHECK: Identifier: "inner" [17:22 - 17:27] NamespaceRef=inner:2:13
+// CHECK: Punctuation: "::" [17:27 - 17:29] UsingDeclaration=iterator[5:18]
+// CHECK: Identifier: "vector" [17:29 - 17:35] TemplateRef=vector:4:12
+// CHECK: Punctuation: "<" [17:35 - 17:36] UsingDeclaration=iterator[5:18]
+// CHECK: Identifier: "X" [17:36 - 17:37] TypeRef=struct X:12:8
+// CHECK: Punctuation: ">" [17:37 - 17:38] UsingDeclaration=iterator[5:18]
+// CHECK: Punctuation: "::" [17:38 - 17:40] UsingDeclaration=iterator[5:18]
+// CHECK: Identifier: "iterator" [17:40 - 17:48] OverloadedDeclRef=iterator[5:18]