`val lift_position : loc:Ppxlib.Location.t ‑> Ppxlib.Parsetree.expression`

Lift a lexing position to a expression

`val lift_position_as_string : loc:Ppxlib.Location.t ‑> Ppxlib.Parsetree.expression`

Lift a lexing position to a string expression

`val set_dirname : string option ‑> unit`

Same as setting the directory name with `-dirname`, for tests

`val expand_filename : string ‑> string`

Prepend the directory name if `-dirname` was passed on the command line and the filename is relative.