clang-format: Fix incorrect trailing return arrow detection.

Before:
  auto doSomething(Aaaaaa* aaaaaa) -> decltype(aaaaaa -> f()) {}

After:
  auto doSomething(Aaaaaa* aaaaaa) -> decltype(aaaaaa->f()) {}

llvm-svn: 220373

diff --git a/clang/lib/Format/TokenAnnotator.cpp b/clang/lib/Format/TokenAnnotator.cpp
index 1949510..0f4c2e2 100644 (file)
--- a/clang/lib/Format/TokenAnnotator.cpp
+++ b/clang/lib/Format/TokenAnnotator.cpp
@@ -779,7 +779,7 @@ private:
       } else if (Current.is(tok::kw_auto)) {
         AutoFound = true;
       } else if (Current.is(tok::arrow) && AutoFound &&
-                 Line.MustBeDeclaration) {
+                 Line.MustBeDeclaration && Current.NestingLevel == 0) {
         Current.Type = TT_TrailingReturnArrow;
       } else if (Current.isOneOf(tok::star, tok::amp, tok::ampamp)) {
         Current.Type =

diff --git a/clang/unittests/Format/FormatTest.cpp b/clang/unittests/Format/FormatTest.cpp
index 05e0fc5..e363c76 100644 (file)
--- a/clang/unittests/Format/FormatTest.cpp
+++ b/clang/unittests/Format/FormatTest.cpp
@@ -3526,6 +3526,7 @@ TEST_F(FormatTest, TrailingReturnType) {
                "    -> alias::tensor<Order, T, mem::tag::cpu> {}");
   verifyFormat("auto SomeFunction(A aaaaaaaaaaaaaaaaaaaaa) const\n"
                "    -> decltype(f(aaaaaaaaaaaaaaaaaaaaa)) {}");
+  verifyFormat("auto doSomething(Aaaaaa* aaaaaa) -> decltype(aaaaaa->f()) {}");
 
   // Not trailing return types.
   verifyFormat("void f() { auto a = b->c(); }");