From 769eb0d5d57a37a3668c6fffef1bb61f8ee76635 Mon Sep 17 00:00:00 2001
From: Haojian Wu <hokein@google.com>
Date: Mon, 9 May 2016 13:37:12 +0000
Subject: Support variables and functions types in misc-unused-using-decls.

Summary: Fix PR27429.

Reviewers: djasper

Subscribers: cfe-commits

Differential Revision: http://reviews.llvm.org/D20018

llvm-svn: 268917
---
 .../test/clang-tidy/misc-unused-using-decls.cpp    | 51 ++++++++++++++++++++++
 1 file changed, 51 insertions(+)

(limited to 'clang-tools-extra/test/clang-tidy/misc-unused-using-decls.cpp')

diff --git a/clang-tools-extra/test/clang-tidy/misc-unused-using-decls.cpp b/clang-tools-extra/test/clang-tidy/misc-unused-using-decls.cpp
index d9f6b2174a6..47917a850e7 100644
--- a/clang-tools-extra/test/clang-tidy/misc-unused-using-decls.cpp
+++ b/clang-tools-extra/test/clang-tidy/misc-unused-using-decls.cpp
@@ -10,6 +10,32 @@ class D;
 class D { public: static int i; };
 template <typename T> class E {};
 template <typename T> class F {};
+class G { public: static void func() {} };
+class H { public: static int i; };
+class I {
+ public:
+  static int ii;
+};
+
+class Base {
+ public:
+  void f();
+};
+
+D UsedInstance;
+D UnusedInstance;
+
+int UsedFunc() { return 1; }
+int UnusedFunc() { return 1; }
+template <typename T> int UsedTemplateFunc() { return 1; }
+template <typename T> int UnusedTemplateFunc() { return 1; }
+
+class ostream {
+public:
+  ostream &operator<<(ostream &(*PF)(ostream &));
+};
+extern ostream cout;
+ostream &endl(ostream &os);
 }
 
 // ----- Using declarations -----
@@ -24,6 +50,25 @@ using n::E; // E
 // CHECK-MESSAGES: :[[@LINE-1]]:10: warning: using decl 'E' is unused
 // CHECK-FIXES: {{^}}// E
 using n::F;
+using n::G;
+using n::H;
+using n::I;
+int I::ii = 1;
+class Derived : public n::Base {
+ public:
+  using Base::f;
+};
+using n::UsedInstance;
+using n::UsedFunc;
+using n::UsedTemplateFunc;
+using n::UnusedInstance; // UnusedInstance
+// CHECK-MESSAGES: :[[@LINE-1]]:10: warning: using decl 'UnusedInstance' is unused
+// CHECK-FIXES: {{^}}// UnusedInstance
+using n::UnusedFunc; // UnusedFunc
+// CHECK-MESSAGES: :[[@LINE-1]]:10: warning: using decl 'UnusedFunc' is unused
+// CHECK-FIXES: {{^}}// UnusedFunc
+using n::cout;
+using n::endl;
 
 // ----- Usages -----
 void f(B b);
@@ -31,5 +76,11 @@ void g() {
   vector<C> data;
   D::i = 1;
   F<int> f;
+  void (*func)() = &G::func;
+  int *i = &H::i;
+  UsedInstance.i;
+  UsedFunc();
+  UsedTemplateFunc<int>();
+  cout << endl;
 }
 
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