Create astroid module from a string using AstroidManager

[twmr]

For the read-from-stdin feature in pylint an AST is constructed using

AstroidBuilder(MANAGER).string_build(data, modname, filepath)

whereas for regular modules it is constructed using

MANAGER.ast_from_file(filepath, modname, source=True)

See the get_ast method in https://github.com/PyCQA/pylint/pull/3257/files/5b24700e7bf84d1f2ae6fcd468acf5a9f6f1c458

The module docstring of astroid.manager suggests that the Manager should be used for both cases in pylint.

Therefore, AstroidManager should provide a way to create an AST from a string.

[PCManticore]

Thanks for opening an issue @Thisch ! This is a matter of exposing a new ast_from_string API in AstroidManager which can look like:

    def ast_from_string(self, data, modname="", path=None):
        """Build astroid from source code string."""
        from astroid.builder import AstroidBuilder

        return AstroidBuilder(self).string_build(data, modname, path=path)

Is this something that you'd be interested in working on?

[twmr]

Currently not. I'll wait a bit and work on it if no one else volunteers.