Add the clang library to the repo (with some of my changes, too).

1 files changed, 92 insertions, 0 deletions

diff --git a/clang/test/Parser/cxx-casting.cpp b/clang/test/Parser/cxx-casting.cpp
new file mode 100644
index 0000000..42ad12e
--- /dev/null
+++ b/clang/test/Parser/cxx-casting.cpp
@@ -0,0 +1,92 @@
+// RUN: %clang_cc1 -fsyntax-only -verify %s
+
+char *const_cast_test(const char *var)
+{
+  return const_cast<char*>(var);
+}
+
+struct A {
+  virtual ~A() {}
+};
+
+struct B : public A {
+};
+
+struct B *dynamic_cast_test(struct A *a)
+{
+  return dynamic_cast<struct B*>(a);
+}
+
+char *reinterpret_cast_test()
+{
+  return reinterpret_cast<char*>(0xdeadbeef);
+}
+
+double static_cast_test(int i)
+{
+  return static_cast<double>(i);
+}
+
+char postfix_expr_test()
+{
+  return reinterpret_cast<char*>(0xdeadbeef)[0];
+}
+
+// This was being incorrectly tentatively parsed.
+namespace test1 {
+  template <class T> class A {}; // expected-note 2{{here}}
+  void foo() { A<int>(*(A<int>*)0); }
+}
+
+typedef char* c;
+typedef A* a;
+void test2(char x, struct B * b) {
+  (void)const_cast<::c>(&x);  // expected-error{{found '<::' after a const_cast which forms the digraph '<:' (aka '[') and a ':', did you mean '< ::'?}}
+  (void)dynamic_cast<::a>(b);  // expected-error{{found '<::' after a dynamic_cast which forms the digraph '<:' (aka '[') and a ':', did you mean '< ::'?}}
+  (void)reinterpret_cast<::c>(x);  // expected-error{{found '<::' after a reinterpret_cast which forms the digraph '<:' (aka '[') and a ':', did you mean '< ::'?}}
+  (void)static_cast<::c>(&x);  // expected-error{{found '<::' after a static_cast which forms the digraph '<:' (aka '[') and a ':', did you mean '< ::'?}}
+
+  // Do not do digraph correction.
+  (void)static_cast<: :c>(&x); //\
+       expected-error {{expected '<' after 'static_cast'}} \
+       expected-error {{expected expression}}\
+       expected-error {{expected ']'}}\
+       expected-note {{to match this '['}}
+  (void)static_cast<: // expected-error {{expected '<' after 'static_cast'}} \
+                         expected-note {{to match this '['}}
+  :c>(&x); // expected-error {{expected expression}} \
+              expected-error {{expected ']'}}
+#define LC <:
+#define C :
+  test1::A LC:B> c; // expected-error {{cannot refer to class template 'A' without a template argument list}} expected-error 2{{}} expected-note{{}}
+  (void)static_cast LC:c>(&x); // expected-error {{expected '<' after 'static_cast'}} expected-error 2{{}} expected-note{{}}
+  test1::A<:C B> d; // expected-error {{cannot refer to class template 'A' without a template argument list}} expected-error 2{{}} expected-note{{}}
+  (void)static_cast<:C c>(&x); // expected-error {{expected '<' after 'static_cast'}} expected-error 2{{}} expected-note{{}}
+
+#define LCC <::
+  test1::A LCC B> e; // expected-error{{found '<::' after a template name which forms the digraph '<:' (aka '[') and a ':', did you mean '< ::'?}}
+  (void)static_cast LCC c>(&x); // expected-error{{found '<::' after a static_cast which forms the digraph '<:' (aka '[') and a ':', did you mean '< ::'?}}
+}
+
+                               // This note comes from "::D[:F> A5;"
+template <class T> class D {}; // expected-note{{template is declared here}}
+template <class T> void E() {};
+class F {};
+
+void test3() {
+  ::D<::F> A1; // expected-error{{found '<::' after a template name which forms the digraph '<:' (aka '[') and a ':', did you mean '< ::'?}}
+  D<::F> A2; // expected-error{{found '<::' after a template name which forms the digraph '<:' (aka '[') and a ':', did you mean '< ::'?}}
+  ::E<::F>(); // expected-error{{found '<::' after a template name which forms the digraph '<:' (aka '[') and a ':', did you mean '< ::'?}}
+  E<::F>(); // expected-error{{found '<::' after a template name which forms the digraph '<:' (aka '[') and a ':', did you mean '< ::'?}}
+
+  ::D< ::F> A3;
+  D< ::F> A4;
+  ::E< ::F>();
+  E< ::F>();
+
+  // Make sure that parser doesn't expand '[:' to '< ::'
+  ::D[:F> A5; // expected-error {{cannot refer to class template 'D' without a template argument list}} \
+              // expected-error {{expected expression}} \
+              // expected-error {{expected ']'}} \
+              // expected-note {{to match this '['}}
+}