[Question] why do we need to `FT_Done_Library` in `impl Drop for Glyph` and `impl Drop for Face`

[lulitao1997]

doesn't it causes double free in the real program?
e.g.
i have a function to get some info from a glyph

fn get_glyph_info(face: Face) {
        let glyph = face.glyph().get_glyph().unwrap();
        // do some calculation on glyph
}

[psychon]

Drive-by-comment: Isn't this reference counted? The call to FT_Done_Library in Glyph::drop:

freetype-rs/src/glyph.rs

Line 156 in 9115178

ffi::FT_Done_Library(self.library_raw)

...goes with the call to FT_Reference_Library in Glyph::from_raw:

freetype-rs/src/glyph.rs

Line 15 in 9115178

ffi::FT_Reference_Library(library_raw);