Sema: Instantiate local class and their members appropriately

We would fail to instantiate them when the surrounding function was
instantiated. Instantiate the class and add it's members to the list of
pending instantiations, they should be resolved when we are finished
with the function's body.

This fixes PR9685.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@195827 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 95 insertions, 1 deletions

diff --git a/test/SemaTemplate/instantiate-local-class.cpp b/test/SemaTemplate/instantiate-local-class.cpp
index c151fbb9a5..2b5db0fda3 100644
--- a/test/SemaTemplate/instantiate-local-class.cpp
+++ b/test/SemaTemplate/instantiate-local-class.cpp
@@ -1,4 +1,4 @@
-// RUN: %clang_cc1 -verify %s
+// RUN: %clang_cc1 -verify -std=c++11 %s
 // expected-no-diagnostics
 template<typename T>
 void f0() {
@@ -66,3 +66,97 @@ namespace PR8801 {
 
   template void foo<Y>();
 }
+
+namespace TemplatePacksAndLambdas {
+  template <typename ...T> int g(T...);
+  struct S {
+    template <typename ...T> static void f(int f = g([]{ static T t; return ++t; }()...)) {}
+  };
+  void h() { S::f<int, int, int>(); }
+}
+
+namespace PR9685 {
+  template <class Thing> void forEach(Thing t) { t.func(); }
+
+  template <typename T> void doIt() {
+    struct Functor {
+      void func() { (void)i; }
+      int i;
+    };
+
+    forEach(Functor());
+  }
+
+  void call() {
+    doIt<int>();
+  }
+}
+
+namespace PR12702 {
+  struct S {
+    template <typename F> bool apply(F f) { return f(); }
+  };
+
+  template <typename> struct T {
+    void foo() {
+      struct F {
+        int x;
+
+        bool operator()() { return x == 0; }
+      };
+
+      S().apply(F());
+    }
+  };
+
+  void call() { T<int>().foo(); }
+}
+
+namespace PR17139 {
+  template <class T> void foo(const T &t) { t.foo(); }
+
+  template <class F> void bar(F *f) {
+    struct B {
+      F *fn;
+      void foo() const { fn(); }
+    } b = { f };
+    foo(b);
+  }
+
+  void go() {}
+
+  void test() { bar(go); }
+}
+
+namespace PR17740 {
+class C {
+public:
+  template <typename T> static void foo(T function);
+  template <typename T> static void bar(T function);
+  template <typename T> static void func(T function);
+};
+
+template <typename T> void C::foo(T function) { function(); }
+
+template <typename T> void C::bar(T function) {
+  foo([&function]() { function(); });
+}
+
+template <typename T> void C::func(T function) {
+  struct Struct {
+    T mFunction;
+
+    Struct(T function) : mFunction(function) {};
+
+    void operator()() {
+      mFunction();
+    };
+  };
+
+  bar(Struct(function));
+}
+
+void call() {
+  C::func([]() {});
+}
+}