Don't implement read_initializer functions manually.

Author: sunfishcode

build.rs

@@ -8,7 +8,6 @@ fn main() {
             "clamp",              // https://github.com/rust-lang/rust/issues/44095
             "extend_one",         // https://github.com/rust-lang/rust/issues/72631
             "pattern",            // https://github.com/rust-lang/rust/issues/27721
-            "read_initializer",   // https://github.com/rust-lang/rust/issues/42788
             "seek_convenience",   // https://github.com/rust-lang/rust/issues/59359
             "seek_stream_len ",   // https://github.com/rust-lang/rust/issues/59359
             "shrink_to",          // https://github.com/rust-lang/rust/issues/56431

cap-async-std/src/lib.rs

@@ -27,7 +27,6 @@
 #![deny(missing_docs)]
 #![cfg_attr(target_os = "wasi", feature(wasi_ext))]
 // async_std doesn't have "can_vector".
-// async_std doesn't have "read_initializer".
 // async_std doesn't have "seek_convenience".
 // async_std doesn't have "with_options".
 // async_std doesn't have "write_all_vectored".

cap-fs-ext/build.rs

@@ -8,7 +8,6 @@ fn main() {
             "clamp",              // https://github.com/rust-lang/rust/issues/44095
             "extend_one",         // https://github.com/rust-lang/rust/issues/72631
             "pattern",            // https://github.com/rust-lang/rust/issues/27721
-            "read_initializer",   // https://github.com/rust-lang/rust/issues/42788
             "seek_convenience",   // https://github.com/rust-lang/rust/issues/59359
             "seek_stream_len ",   // https://github.com/rust-lang/rust/issues/59359
             "shrink_to",          // https://github.com/rust-lang/rust/issues/56431

cap-primitives/build.rs

@@ -8,7 +8,6 @@ fn main() {
             "clamp",              // https://github.com/rust-lang/rust/issues/44095
             "extend_one",         // https://github.com/rust-lang/rust/issues/72631
             "pattern",            // https://github.com/rust-lang/rust/issues/27721
-            "read_initializer",   // https://github.com/rust-lang/rust/issues/42788
             "seek_convenience",   // https://github.com/rust-lang/rust/issues/59359
             "seek_stream_len",    // https://github.com/rust-lang/rust/issues/59359
             "shrink_to",          // https://github.com/rust-lang/rust/issues/56431

cap-std/build.rs

@@ -8,7 +8,6 @@ fn main() {
             "clamp",              // https://github.com/rust-lang/rust/issues/44095
             "extend_one",         // https://github.com/rust-lang/rust/issues/72631
             "pattern",            // https://github.com/rust-lang/rust/issues/27721
-            "read_initializer",   // https://github.com/rust-lang/rust/issues/42788
             "seek_convenience",   // https://github.com/rust-lang/rust/issues/59359
             "seek_stream_len",    // https://github.com/rust-lang/rust/issues/59359
             "shrink_to",          // https://github.com/rust-lang/rust/issues/56431

cap-std/src/fs/file.rs

@@ -2,8 +2,6 @@
 use crate::fs::OpenOptions;
 use crate::fs::{Metadata, Permissions};
 use cap_primitives::fs::is_file_read_write;
-#[cfg(read_initializer)]
-use std::io::Initializer;
 #[cfg(unix)]
 use std::os::unix::io::{AsRawFd, FromRawFd, IntoRawFd, RawFd};
 #[cfg(target_os = "wasi")]
@@ -231,12 +229,6 @@ impl Read for File {
     fn is_read_vectored(&self) -> bool {
         self.std.is_read_vectored()
     }
-
-    #[cfg(read_initializer)]
-    #[inline]
-    unsafe fn initializer(&self) -> Initializer {
-        self.std.initializer()
-    }
 }
 
 impl Read for &File {
@@ -270,12 +262,6 @@ impl Read for &File {
     fn is_read_vectored(&self) -> bool {
         (&mut &self.std).is_read_vectored()
     }
-
-    #[cfg(read_initializer)]
-    #[inline]
-    unsafe fn initializer(&self) -> Initializer {
-        (&mut &self.std).initializer()
-    }
 }
 
 impl Write for File {

cap-std/src/fs_utf8/file.rs

@@ -1,8 +1,6 @@
 #[cfg(with_options)]
 use crate::fs::OpenOptions;
 use crate::fs::{Metadata, Permissions};
-#[cfg(read_initializer)]
-use std::io::Initializer;
 #[cfg(unix)]
 use std::os::unix::io::{AsRawFd, FromRawFd, IntoRawFd, RawFd};
 #[cfg(target_os = "wasi")]
@@ -210,12 +208,6 @@ impl Read for File {
     fn is_read_vectored(&self) -> bool {
         self.cap_std.is_read_vectored()
     }
-
-    #[cfg(read_initializer)]
-    #[inline]
-    unsafe fn initializer(&self) -> Initializer {
-        self.cap_std.initializer()
-    }
 }
 
 impl Read for &File {
@@ -249,12 +241,6 @@ impl Read for &File {
     fn is_read_vectored(&self) -> bool {
         (&mut &self.cap_std).is_read_vectored()
     }
-
-    #[cfg(read_initializer)]
-    #[inline]
-    unsafe fn initializer(&self) -> Initializer {
-        (&mut &self.cap_std).initializer()
-    }
 }
 
 impl Write for File {

cap-std/src/lib.rs

@@ -27,7 +27,6 @@
 #![deny(missing_docs)]
 #![cfg_attr(target_os = "wasi", feature(wasi_ext))]
 #![cfg_attr(can_vector, feature(can_vector))]
-#![cfg_attr(read_initializer, feature(read_initializer))]
 #![cfg_attr(seek_convenience, feature(seek_convenience))]
 #![cfg_attr(seek_stream_len, feature(seek_stream_len))]
 #![cfg_attr(with_options, feature(with_options))]

cap-std/src/net/tcp_stream.rs

@@ -1,6 +1,4 @@
 use crate::net::{Shutdown, SocketAddr};
-#[cfg(read_initializer)]
-use std::io::Initializer;
 #[cfg(unix)]
 use std::os::unix::io::{AsRawFd, FromRawFd, IntoRawFd, RawFd};
 #[cfg(windows)]
@@ -260,12 +258,6 @@ impl Read for TcpStream {
     fn is_read_vectored(&self) -> bool {
         self.std.is_read_vectored()
     }
-
-    #[cfg(read_initializer)]
-    #[inline]
-    unsafe fn initializer(&self) -> Initializer {
-        self.std.initializer()
-    }
 }
 
 impl Read for &TcpStream {
@@ -299,12 +291,6 @@ impl Read for &TcpStream {
     fn is_read_vectored(&self) -> bool {
         (&mut &self.std).is_read_vectored()
     }
-
-    #[cfg(read_initializer)]
-    #[inline]
-    unsafe fn initializer(&self) -> Initializer {
-        (&mut &self.std).initializer()
-    }
 }
 
 impl Write for TcpStream {

cap-std/src/os/unix/net/unix_stream.rs

@@ -1,6 +1,4 @@
 use crate::{net::Shutdown, os::unix::net::SocketAddr};
-#[cfg(read_initializer)]
-use std::io::Initializer;
 use std::{
     io::{self, IoSlice, IoSliceMut, Read, Write},
     os::unix::{
@@ -204,12 +202,6 @@ impl Read for UnixStream {
     fn is_read_vectored(&self) -> bool {
         self.std.is_read_vectored()
     }
-
-    #[cfg(read_initializer)]
-    #[inline]
-    unsafe fn initializer(&self) -> Initializer {
-        self.std.initializer()
-    }
 }
 
 impl Read for &UnixStream {
@@ -243,12 +235,6 @@ impl Read for &UnixStream {
     fn is_read_vectored(&self) -> bool {
         (&mut &self.std).is_read_vectored()
     }
-
-    #[cfg(read_initializer)]
-    #[inline]
-    unsafe fn initializer(&self) -> Initializer {
-        (&mut &self.std).initializer()
-    }
 }
 
 impl Write for UnixStream {