Missing highlight in assume attribute

[EienMiku]

Checklist

• This problem exists even with the setting "C_Cpp.enhancedColorization": "Disabled"

The code with a problem is:

int x{};
[[assume(true)]];
[[assume(sizeof x == 4)]];

It looks like:

The theme is Default Dark Modern.

Expression in assume attribute is not highlighted.

It should look like:

Expression in assume attribute should be highlighted consistently with the expressions outside.

[jeff-hykin]

Is assume part of the C++ spec? I'm not familiar with it

[EienMiku]

Is assume part of the C++ spec? I'm not familiar with it

Yes, attribute assume is part of C++23.

[EienMiku]

Is assume part of the C++ spec? I'm not familiar with it

https://en.cppreference.com/w/cpp/language/attributes/assume