[clang-format] [PR27004] omits leading space for noexcept when formatting operator delete()

Summary:
clang-format is incorrectly thinking the parameter parens are part of a cast operation, this is resulting in there sometimes being not space between the paren and the noexcept (and other keywords like volatile etc..)

```
void operator++(int) noexcept;
void operator++(int &) noexcept;
void operator delete(void *, std::size_t, const std::nothrow_t &)noexcept;
```

Reviewers: klimek, owenpan, mitchell-stellar

Reviewed By: mitchell-stellar

Subscribers: cfe-commits

Tags: #clang-format, #clang

Differential Revision: https://reviews.llvm.org/D68481

llvm-svn: 373922

1 files changed, 27 insertions, 0 deletions

diff --git a/clang/unittests/Format/FormatTest.cpp b/clang/unittests/Format/FormatTest.cpp
index 8263dc41b31..8c2bc1ab228 100644
--- a/clang/unittests/Format/FormatTest.cpp
+++ b/clang/unittests/Format/FormatTest.cpp
@@ -14678,6 +14678,33 @@ TEST_F(FormatTest, AlternativeOperators) {
   */
 }
 
+TEST_F(FormatTest, NotCastRPaen) {
+
+  verifyFormat("void operator++(int) noexcept;");
+  verifyFormat("void operator++(int &) noexcept;");
+  verifyFormat("void operator delete(void *, std::size_t, const std::nothrow_t "
+               "&) noexcept;");
+  verifyFormat(
+      "void operator delete(std::size_t, const std::nothrow_t &) noexcept;");
+  verifyFormat("void operator delete(const std::nothrow_t &) noexcept;");
+  verifyFormat("void operator delete(std::nothrow_t &) noexcept;");
+  verifyFormat("void operator delete(nothrow_t &) noexcept;");
+  verifyFormat("void operator delete(foo &) noexcept;");
+  verifyFormat("void operator delete(foo) noexcept;");
+  verifyFormat("void operator delete(int) noexcept;");
+  verifyFormat("void operator delete(int &) noexcept;");
+  verifyFormat("void operator delete(int &) volatile noexcept;");
+  verifyFormat("void operator delete(int &) const");
+  verifyFormat("void operator delete(int &) = default");
+  verifyFormat("void operator delete(int &) = delete");
+  verifyFormat("void operator delete(int &) [[noreturn]]");
+  verifyFormat("void operator delete(int &) throw();");
+  verifyFormat("void operator delete(int &) throw(int);");
+  verifyFormat("auto operator delete(int &) -> int;");
+  verifyFormat("auto operator delete(int &) override");
+  verifyFormat("auto operator delete(int &) final");
+}
+
 } // end namespace
 } // end namespace format
 } // end namespace clang