[cfe-dev] Clang: checker vs. plugin

[Aitor San Juan]

Hello,

I was wondering the difference between the concept of a plugin and a
checker. Please, correct me. As far as I know, from a technical point of
view, a plugin is a separately compiled routine (DLL) that may be loaded by
the compiler (compile-time). However, a checker is a routine used by
Clang's analyzer to enhance the latter's analysis logic (in the case of  a
checker, in order for the analyzer to be able to use it, the latter must be
rebuilt).

I also wonder whether a plugin can also interact with Clang's analyzer? If
so, then what reason could make you decide whether to implement a checker
or a plugin?

Thanks.
Aitor.
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