[clang-format] && wrongfully interpreted as Boolean operation

[prj-]

$ cat foo.cpp
template <class F, class... Args>
using invoke_result_t = typename std::result_of<F&& (Args &&...)>::type;
$ clang-format-20 foo.cpp
template <class F, class... Args>
using invoke_result_t = typename std::result_of<F && (Args && ...)>::type;

[llvmbot]

@llvm/issue-subscribers-clang-format

Author: Pierre Jolivet (prj-)

``` $ cat foo.cpp template <class F, class... Args> using invoke_result_t = typename std::result_of<F&& (Args &&...)>::type; $ clang-format-20 foo.cpp template <class F, class... Args> using invoke_result_t = typename std::result_of<F && (Args && ...)>::type; ```

[owenca]

@prj you need to add F to TypeNames for this to work:

$ clang-format -style='{TypeNames: [F]}' foo.cpp
template <class F, class... Args>
using invoke_result_t = typename std::result_of<F &&(Args &&...)>::type;

[prj-]

I see. Is there no way around this?

[owenca]

I don't know of any additional heuristics we can add to the parser for this construct, especially when parseAngle() already annotates the angles correctly.

[prj-]

OK, then I guess I need to find another type name because this is messing up the rest of our code using F as a variable. Feel free to close the issue.