16     buf: &'a [u8],  field
20     fn from_slice(buf: &'a [u8]) -> Self {  in from_slice()
21         Self { buf }  in from_slice()
30             if self.buf.len() < mem::size_of::<wasip1::Dirent>() {  in next()
35             let dirent_ptr = self.buf.as_ptr() as *const wasip1::Dirent;  in next()
38             if self.buf.len() < mem::size_of::<wasip1::Dirent>() + dirent.d_namlen as usize {  in next()
50             self.buf = &self.buf[delta..];  in next()
59     let mut buf: [u8; BUF_LEN] = [0; BUF_LEN];  in exec_fd_readdir()  localVariable
61         wasip1::fd_readdir(fd, buf.as_mut_ptr(), BUF_LEN, cookie).expect("failed fd_readdir");  in exec_fd_readdir()
64     let sl = slice::from_raw_parts(buf.as_ptr(), bufused);  in exec_fd_readdir()
228     let mut buf = Vec::new();  in test_fd_readdir_unicode_boundary()  localVariable
230         let len = wasip1::fd_readdir(dir_fd, buf.as_mut_ptr(), buf.capacity(), 0).unwrap();  in test_fd_readdir_unicode_boundary()
231         buf.set_len(len);  in test_fd_readdir_unicode_boundary()
233         for entry in ReadDir::from_slice(&buf) {  in test_fd_readdir_unicode_boundary()
238         buf = Vec::with_capacity(buf.capacity() + 1);  in test_fd_readdir_unicode_boundary()
257     let mut buf = vec![0; 128];  in test_fd_readdir_past_end()  localVariable
258     let len = wasip1::fd_readdir(dir_fd, buf.as_mut_ptr(), buf.capacity(), 0).unwrap();  in test_fd_readdir_past_end()
260     let next = ReadDir::from_slice(&buf[..len])  in test_fd_readdir_past_end()
266     let len = wasip1::fd_readdir(dir_fd, buf.as_mut_ptr(), buf.capacity(), next + 1).unwrap();  in test_fd_readdir_past_end()