[llvm-bugs] [Bug 33507] New: Assertion failed: Shift >= 0, file C:\src\llvm_package_303050\llvm\tools\clang\lib\Format\WhitespaceManager.cpp, line 245

via llvm-bugs llvm-bugs at lists.llvm.org
Mon Jun 19 07:03:27 PDT 2017


            Bug ID: 33507
           Summary: Assertion failed: Shift >= 0, file
                    \WhitespaceManager.cpp, line 245
           Product: clang
           Version: trunk
          Hardware: PC
                OS: Windows NT
            Status: NEW
          Severity: normal
          Priority: P
         Component: Formatter
          Assignee: unassignedclangbugs at nondot.org
          Reporter: mteodor at gmail.com
                CC: djasper at google.com, klimek at google.com,
                    llvm-bugs at lists.llvm.org

We have a dozen of C++ files with some lambdas that make clang-format crash.

One example is this code:

  auto found = range::find_if(vsProducts, [&](auto * aProduct) {
    static const Version verVs2017;
    return true;

If I add this code to another C++ file and try to format (on save), it will
crash and create a dump file.  (the example code was reduced, but still two

I've trimmed the config file to just these two lines to reproduce the problem:

  BasedOnStyle: Mozilla
  AlignConsecutiveDeclarations: 'true'


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