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

1 files changed, 57 insertions, 0 deletions

diff --git a/clang/test/Parser/objcxx11-attributes.mm b/clang/test/Parser/objcxx11-attributes.mm
new file mode 100644
index 0000000..0c91392
--- /dev/null
+++ b/clang/test/Parser/objcxx11-attributes.mm
@@ -0,0 +1,57 @@
+// RUN: %clang_cc1 -fsyntax-only -verify -std=c++11 %s
+
+@interface X {}
++ (X*) alloc;
+- (X*) init;
+- (int) getSize;
+- (void) setSize: (int) size;
+- (X*) getSelf;
+@end
+
+void f(X *noreturn) {
+  // An array size which is computed by a message send is OK.
+  int a[ [noreturn getSize] ];
+
+  // ... but is interpreted as an attribute where possible.
+  int b[ [noreturn] ]; // expected-warning {{'noreturn' only applies to function types}}
+
+  int c[ [noreturn getSize] + 1 ];
+
+  // An array size which is computed by a lambda is not OK.
+  int d[ [noreturn] { return 3; } () ]; // expected-error {{expected ']'}} expected-warning {{'noreturn' only applies}}
+
+  // A message send which contains a message send is OK.
+  [ [ X alloc ] init ];
+  [ [ int(), noreturn getSelf ] getSize ]; // expected-warning {{unused}}
+
+  // A message send which contains a lambda is OK.
+  [ [noreturn] { return noreturn; } () setSize: 4 ];
+  [ [bitand] { return noreturn; } () setSize: 5 ];
+  [[[[] { return [ X alloc ]; } () init] getSelf] getSize];
+
+  // An attribute is OK.
+  [[]];
+  [[int(), noreturn]]; // expected-warning {{attribute noreturn cannot be specified on a statement}}
+  [[class, test(foo 'x' bar),,,]];
+  [[bitand, noreturn]]; // expected-warning {{attribute noreturn cannot be specified on a statement}}
+
+  [[noreturn]]int(e)();
+  int e2(); // expected-warning {{interpreted as a function declaration}} expected-note{{}}
+
+  // A function taking a noreturn function.
+  int(f)([[noreturn]] int()); // expected-note {{here}}
+  f(e);
+  f(e2); // expected-error {{cannot initialize a parameter of type 'int (*)() __attribute__((noreturn))' with an lvalue of type 'int ()'}}
+
+  // Variables initialized by a message send.
+  int(g)([[noreturn getSelf] getSize]);
+  int(h)([[noreturn]{return noreturn;}() getSize]);
+
+  int i = g + h;
+}
+
+template<typename...Ts> void f(Ts ...x) {
+  [[test::foo(bar, baz)...]];
+  [[used(x)...]];
+  [[x...] { return [ X alloc ]; }() init];
+}