fs: only import wasi Fd type in one place

crates/wasi-common/src/fs/dir.rs

@@ -1,5 +1,4 @@
-use crate::fs::{File, OpenOptions, ReadDir};
-use crate::wasi::types;
+use crate::fs::{Fd, File, OpenOptions, ReadDir};
 use crate::wasi::wasi_snapshot_preview1::WasiSnapshotPreview1;
 use crate::WasiCtx;
 #[cfg(unix)]
@@ -18,12 +17,12 @@ use std::{io, path::Path};
 /// don't interoperate well with the capability-oriented security model.
 pub struct Dir<'ctx> {
     ctx: &'ctx WasiCtx,
-    fd: types::Fd,
+    fd: Fd,
 }
 
 impl<'ctx> Dir<'ctx> {
     /// Constructs a new instance of `Self` from the given raw WASI file descriptor.
-    pub unsafe fn from_raw_wasi_fd(ctx: &'ctx WasiCtx, fd: types::Fd) -> Self {
+    pub unsafe fn from_raw_wasi_fd(ctx: &'ctx WasiCtx, fd: Fd) -> Self {
         Self { ctx, fd }
     }
 
@@ -39,7 +38,7 @@ impl<'ctx> Dir<'ctx> {
     /// [`std::fs::File::open`]: https://doc.rust-lang.org/std/fs/struct.File.html#method.open
     pub fn open_file<P: AsRef<Path>>(&mut self, path: P) -> io::Result<File> {
         let path = path.as_ref();
-        let mut fd = types::Fd::from(0);
+        let mut fd = Fd::from(0);
 
         // TODO: Refactor the hostcalls functions to split out the encoding/decoding
         // parts from the underlying functionality, so that we can call into the
@@ -92,7 +91,7 @@ impl<'ctx> Dir<'ctx> {
     /// TODO: Not yet implemented. See the comment in `open_file`.
     pub fn open_dir<P: AsRef<Path>>(&mut self, path: P) -> io::Result<Self> {
         let path = path.as_ref();
-        let mut fd = types::Fd::from(0);
+        let mut fd = Fd::from(0);
 
         // TODO: See the comment in `open_file`.
         unimplemented!("Dir::open_dir");
@@ -124,7 +123,7 @@ impl<'ctx> Dir<'ctx> {
     /// [`std::fs::File::create`]: https://doc.rust-lang.org/std/fs/struct.File.html#method.create
     pub fn create_file<P: AsRef<Path>>(&mut self, path: P) -> io::Result<File> {
         let path = path.as_ref();
-        let mut fd = types::Fd::from(0);
+        let mut fd = Fd::from(0);
 
         // TODO: See the comments in `open_file`.
         //

crates/wasi-common/src/fs/file.rs

@@ -1,5 +1,4 @@
-use crate::fs::Metadata;
-use crate::wasi::types;
+use crate::fs::{Fd, Metadata};
 use crate::wasi::wasi_snapshot_preview1::WasiSnapshotPreview1;
 use crate::Result;
 use crate::WasiCtx;
@@ -19,7 +18,7 @@ use std::io;
 /// [`Dir::create_file`]: struct.Dir.html#method.create_file
 pub struct File<'ctx> {
     ctx: &'ctx WasiCtx,
-    fd: types::Fd,
+    fd: Fd,
 }
 
 impl<'ctx> File<'ctx> {
@@ -28,7 +27,7 @@ impl<'ctx> File<'ctx> {
     /// This corresponds to [`std::fs::File::from_raw_fd`].
     ///
     /// [`std::fs::File::from_raw_fd`]: https://doc.rust-lang.org/std/fs/struct.File.html#method.from_raw_fd
-    pub unsafe fn from_raw_wasi_fd(ctx: &'ctx WasiCtx, fd: types::Fd) -> Self {
+    pub unsafe fn from_raw_wasi_fd(ctx: &'ctx WasiCtx, fd: Fd) -> Self {
         Self { ctx, fd }
     }
 
@@ -89,7 +88,7 @@ impl<'ctx> io::Read for File<'ctx> {
     /// TODO: Not yet implemented. See the comment in `Dir::open_file`.
     fn read(&mut self, buf: &mut [u8]) -> io::Result<usize> {
         // TODO
-        // let iov = [types::Iovec {
+        // let iov = [Iovec {
         //     buf: buf.as_mut_ptr() as *mut u8,
         //     buf_len: buf.len(),
         // }];

crates/wasi-common/src/fs/mod.rs

@@ -39,6 +39,8 @@ mod open_options;
 mod permissions;
 mod readdir;
 
+pub use crate::wasi::types::Fd;
+
 pub use dir::*;
 pub use dir_builder::*;
 pub use dir_entry::*;

crates/wasi-common/src/fs/readdir.rs

@@ -1,5 +1,4 @@
-use crate::fs::DirEntry;
-use crate::wasi::types;
+use crate::fs::{DirEntry, Fd};
 
 /// Iterator over the entries in a directory.
 ///
@@ -9,12 +8,12 @@ use crate::wasi::types;
 ///
 /// [`std::fs::ReadDir`]: https://doc.rust-lang.org/std/fs/struct.ReadDir.html
 pub struct ReadDir {
-    fd: types::Fd,
+    fd: Fd,
 }
 
 impl ReadDir {
     /// Constructs a new instance of `Self` from the given raw WASI file descriptor.
-    pub unsafe fn from_raw_wasi_fd(fd: types::Fd) -> Self {
+    pub unsafe fn from_raw_wasi_fd(fd: Fd) -> Self {
         Self { fd }
     }
 }