std: Stabilize the prelude module

This commit is an implementation of [RFC 503][rfc] which is a stabilization
story for the prelude. Most of the RFC was directly applied, removing reexports.
Some reexports are kept around, however:

* `range` remains until range syntax has landed to reduce churn.
* `Path` and `GenericPath` remain until path reform lands. This is done to
  prevent many imports of `GenericPath` which will soon be removed.
* All `io` traits remain until I/O reform lands so imports can be rewritten all
  at once to `std::io::prelude::*`.

This is a breaking change because many prelude reexports have been removed, and
the RFC can be consulted for the exact list of removed reexports, as well as to
find the locations of where to import them.

[rfc]: https://github.com/rust-lang/rfcs/blob/master/text/0503-prelude-stabilization.md
[breaking-change]

Closes #20068

11 files changed, 18 insertions, 15 deletions

diff --git a/src/libstd/sys/windows/c.rs b/src/libstd/sys/windows/c.rs
index d1cb91bcdb3..d1177776dd8 100644
--- a/src/libstd/sys/windows/c.rs
+++ b/src/libstd/sys/windows/c.rs
@@ -15,7 +15,7 @@
 #![allow(non_camel_case_types)]
 
 use libc;
-use prelude::*;
+use prelude::v1::*;
 
 pub const WSADESCRIPTION_LEN: uint = 256;
 pub const WSASYS_STATUS_LEN: uint = 128;
@@ -133,7 +133,7 @@ pub mod compat {
     use intrinsics::{atomic_store_relaxed, transmute};
     use iter::IteratorExt;
     use libc::types::os::arch::extra::{LPCWSTR, HMODULE, LPCSTR, LPVOID};
-    use prelude::*;
+    use prelude::v1::*;
 
     extern "system" {
         fn GetModuleHandleW(lpModuleName: LPCWSTR) -> HMODULE;
diff --git a/src/libstd/sys/windows/fs.rs b/src/libstd/sys/windows/fs.rs
index 15eddd569be..632261f0ad9 100644
--- a/src/libstd/sys/windows/fs.rs
+++ b/src/libstd/sys/windows/fs.rs
@@ -21,7 +21,7 @@ use ptr;
 use str;
 use io;
 
-use prelude::*;
+use prelude::v1::*;
 use sys;
 use sys::os;
 use sys_common::{keep_going, eof, mkerr_libc};
diff --git a/src/libstd/sys/windows/mod.rs b/src/libstd/sys/windows/mod.rs
index 6924687d8c4..94f5822ccea 100644
--- a/src/libstd/sys/windows/mod.rs
+++ b/src/libstd/sys/windows/mod.rs
@@ -18,9 +18,10 @@
 
 extern crate libc;
 
+use prelude::v1::*;
+
 use num;
 use mem;
-use prelude::*;
 use io::{mod, IoResult, IoError};
 use sync::{Once, ONCE_INIT};
 
diff --git a/src/libstd/sys/windows/mutex.rs b/src/libstd/sys/windows/mutex.rs
index 3ac7c09154e..c7b4a4cec09 100644
--- a/src/libstd/sys/windows/mutex.rs
+++ b/src/libstd/sys/windows/mutex.rs
@@ -8,7 +8,7 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
-use prelude::*;
+use prelude::v1::*;
 
 use sync::atomic;
 use alloc::{mod, heap};
diff --git a/src/libstd/sys/windows/os.rs b/src/libstd/sys/windows/os.rs
index e007b46b261..159512525d8 100644
--- a/src/libstd/sys/windows/os.rs
+++ b/src/libstd/sys/windows/os.rs
@@ -13,7 +13,7 @@
 // FIXME: move various extern bindings from here into liblibc or
 // something similar
 
-use prelude::*;
+use prelude::v1::*;
 
 use fmt;
 use io::{IoResult, IoError};
diff --git a/src/libstd/sys/windows/pipe.rs b/src/libstd/sys/windows/pipe.rs
index fc3640f2604..f173d5fc6d4 100644
--- a/src/libstd/sys/windows/pipe.rs
+++ b/src/libstd/sys/windows/pipe.rs
@@ -84,14 +84,14 @@
 //! the test suite passing (the suite is in libstd), and that's good enough for
 //! me!
 
-use alloc::arc::Arc;
+use prelude::v1::*;
+
 use libc;
 use c_str::CString;
 use mem;
 use ptr;
-use sync::{atomic, Mutex};
+use sync::{atomic, Arc, Mutex};
 use io::{mod, IoError, IoResult};
-use prelude::*;
 
 use sys_common::{mod, eof};
 
diff --git a/src/libstd/sys/windows/process.rs b/src/libstd/sys/windows/process.rs
index 0c2c76077dd..f99995eb028 100644
--- a/src/libstd/sys/windows/process.rs
+++ b/src/libstd/sys/windows/process.rs
@@ -8,6 +8,8 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
+use prelude::v1::*;
+
 use libc::{pid_t, c_void, c_int};
 use libc;
 use c_str::CString;
@@ -15,7 +17,6 @@ use io;
 use mem;
 use os;
 use ptr;
-use prelude::*;
 use io::process::{ProcessExit, ExitStatus, ExitSignal};
 use collections;
 use path::BytesContainer;
@@ -469,7 +470,7 @@ mod tests {
 
     #[test]
     fn test_make_command_line() {
-        use prelude::*;
+        use prelude::v1::*;
         use str;
         use c_str::CString;
         use super::make_command_line;
diff --git a/src/libstd/sys/windows/tcp.rs b/src/libstd/sys/windows/tcp.rs
index 513c1d38e36..5a929f6b2b5 100644
--- a/src/libstd/sys/windows/tcp.rs
+++ b/src/libstd/sys/windows/tcp.rs
@@ -13,7 +13,7 @@ use io::IoResult;
 use libc;
 use mem;
 use ptr;
-use prelude::*;
+use prelude::v1::*;
 use super::{last_error, last_net_error, retry, sock_t};
 use sync::{Arc, atomic};
 use sys::fs::FileDesc;
diff --git a/src/libstd/sys/windows/thread_local.rs b/src/libstd/sys/windows/thread_local.rs
index 60b0d584db3..b96e26c7a86 100644
--- a/src/libstd/sys/windows/thread_local.rs
+++ b/src/libstd/sys/windows/thread_local.rs
@@ -8,7 +8,7 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
-use prelude::*;
+use prelude::v1::*;
 
 use libc::types::os::arch::extra::{DWORD, LPVOID, BOOL};
 
diff --git a/src/libstd/sys/windows/timer.rs b/src/libstd/sys/windows/timer.rs
index 874838950cd..3df0debff51 100644
--- a/src/libstd/sys/windows/timer.rs
+++ b/src/libstd/sys/windows/timer.rs
@@ -29,7 +29,7 @@ use comm;
 use sys::c;
 use sys::fs::FileDesc;
 use sys_common::helper_thread::Helper;
-use prelude::*;
+use prelude::v1::*;
 use io::IoResult;
 
 helper_init! { static HELPER: Helper<Req> }
diff --git a/src/libstd/sys/windows/tty.rs b/src/libstd/sys/windows/tty.rs
index f793de5bb57..dfa3440067a 100644
--- a/src/libstd/sys/windows/tty.rs
+++ b/src/libstd/sys/windows/tty.rs
@@ -25,6 +25,8 @@
 //! wrapper that performs encoding/decoding, this implementation should switch
 //! to working in raw UTF-16, with such a wrapper around it.
 
+use prelude::v1::*;
+
 use super::c::{ReadConsoleW, WriteConsoleW, GetConsoleMode, SetConsoleMode};
 use super::c::{ERROR_ILLEGAL_CHARACTER};
 use super::c::{ENABLE_ECHO_INPUT, ENABLE_EXTENDED_FLAGS};
@@ -34,7 +36,6 @@ use libc::{c_int, HANDLE, LPDWORD, DWORD, LPVOID};
 use libc::{get_osfhandle, CloseHandle};
 use libc::types::os::arch::extra::LPCVOID;
 use io::{mod, IoError, IoResult, MemReader};
-use prelude::*;
 use ptr;
 use str::from_utf8;