Clang: readability-function-cognitive-complexity.DescribeBasicIncrements值没有影响

Question

在https://clang.llvm.org/extra/clang-tidy/checks/readability-function-cognitive-complexity.html提供的示例代码上运行clang时，请参阅function3。

使用下面的命令

clang-tidy.exe Example.cpp -config="{Checks: '-*,readability-*',CheckOptions: [{key: readability-function-cognitive-complexity.Threshold, value: 2},{key: readability-function-cognitive-complexity.DescribeBasicIncrements, value: false} ]}"

我的产量低于产量。

\Example.cpp:2:5: warning: function 'function3' has cognitive complexity of 3 (threshold 2) [readability-function-cognitive-complexity]
int function3(bool var1, bool var2) {
    ^
\Example.cpp:3:3: note: +1, including nesting penalty of 0, nesting level increased to 1
  if(var1) { // +1, nesting level +1
  ^
\Example.cpp:4:5: note: +2, including nesting penalty of 1, nesting level increased to 2
    if(var2)  // +2 (1 + current nesting level of 1), nesting level +1
    ^
\Example.cpp:4:13: warning: statement should be inside braces [readability-braces-around-statements]
    if(var2)  // +2 (1 + current nesting level of 1), nesting level +1
            ^
             {
\Example.cpp:5:14: warning: 42 is a magic number; consider replacing it with a named constant [readability-magic-numbers]
      return 42;

因此，密钥readability-function-cognitive-complexity.DescribeBasicIncrements似乎没有任何影响。我也试过

{key: readability-function-cognitive-complexity.DescribeBasicIncrements, value: 'false'}`
{key: readability-function-cognitive-complexity.DescribeBasicIncrements, value: '0'}
{key: readability-function-cognitive-complexity.DescribeBasicIncrements, value: 0} 

但在增加认知复杂性的线路上仍然得到了额外的诊断信息。所以，我认为readability-function-cognitive-complexity.DescribeBasicIncrements坏了，还是我做错了什么？

更多信息：

• clang版本12.0

Answer 1

这就是你问题的根源：

更多信息：

• clang版本12.0

DescribeBasicIncrements选项是在此承诺中引入的，它不是clang12.0的一部分

安装最新的clang版本，它应该按预期工作。