std: Deprecate std::old_io::fs

This commit deprecates the majority of std::old_io::fs in favor of std::fs and
its new functionality. Some functions remain non-deprecated but are now behind a
feature gate called `old_fs`. These functions will be deprecated once
suitable replacements have been implemented.

The compiler has been migrated to new `std::fs` and `std::path` APIs where
appropriate as part of this change.

1 files changed, 14 insertions, 1 deletions

diff --git a/src/librustc/util/common.rs b/src/librustc/util/common.rs
index ca740f53782..0b32f7f69eb 100644
--- a/src/librustc/util/common.rs
+++ b/src/librustc/util/common.rs
@@ -12,11 +12,13 @@
 
 use std::cell::{RefCell, Cell};
 use std::collections::HashMap;
+use std::collections::hash_state::HashState;
+use std::ffi::CString;
 use std::fmt::Debug;
 use std::hash::Hash;
 use std::iter::repeat;
+use std::path::Path;
 use std::time::Duration;
-use std::collections::hash_state::HashState;
 
 use syntax::ast;
 use syntax::visit;
@@ -222,3 +224,14 @@ pub fn memoized<T, U, S, F>(cache: &RefCell<HashMap<T, U, S>>, arg: T, f: F) ->
         }
     }
 }
+
+#[cfg(unix)]
+pub fn path2cstr(p: &Path) -> CString {
+    use std::os::unix::prelude::*;
+    use std::ffi::AsOsStr;
+    CString::new(p.as_os_str().as_bytes()).unwrap()
+}
+#[cfg(windows)]
+pub fn path2cstr(p: &Path) -> CString {
+    CString::new(p.to_str().unwrap()).unwrap()
+}