---

yaml
---
r: 190414
b: refs/heads/snap-stage3
c: 1014b22
h: refs/heads/master
v: v3

Author: steveklabnik

[refs]

@@ -1,7 +1,7 @@
 ---
 refs/heads/master: 857ac28867722111249b5c3ef68e32499bd11ea0
 refs/heads/snap-stage1: e33de59e47c5076a89eadeb38f4934f58a3618a6
-refs/heads/snap-stage3: 4733190c35a01ac33e82892b4dffa2c052c4fe9c
+refs/heads/snap-stage3: 1014b22b317b3afbe211dbc0e1b00045a0e9c76f
 refs/heads/try: 1c28ab65017d74fc13d003f7c7a73d1a48e5406f
 refs/tags/release-0.1: 1f5c5126e96c79d22cb7862f75304136e204f105
 refs/heads/dist-snap: ba4081a5a8573875fed17545846f6f6902c8ba8d

branches/snap-stage3/src/doc/reference.md

@@ -3007,10 +3007,6 @@ A type cast expression is denoted with the binary operator `as`.
 Executing an `as` expression casts the value on the left-hand side to the type
 on the right-hand side.
 
-A numeric value can be cast to any numeric type. A raw pointer value can be
-cast to or from any integral type or raw pointer type. Any other cast is
-unsupported and will fail to compile.
-
 An example of an `as` expression:
 
 ```

branches/snap-stage3/src/doc/trpl/plugins.md

@@ -63,7 +63,7 @@ that implements Roman numeral integer literals.
 
 ```ignore
 #![crate_type="dylib"]
-#![feature(plugin_registrar, rustc_private)]
+#![feature(plugin_registrar)]
 
 extern crate syntax;
 extern crate rustc;
@@ -92,13 +92,13 @@ fn expand_rn(cx: &mut ExtCtxt, sp: Span, args: &[TokenTree])
         }
     };
 
-    let mut text = &*text;
+    let mut text = &text;
     let mut total = 0;
     while !text.is_empty() {
         match NUMERALS.iter().find(|&&(rn, _)| text.starts_with(rn)) {
             Some(&(rn, val)) => {
                 total += val;
-                text = &text[rn.len()..];
+                text = text.slice_from(rn.len());
             }
             None => {
                 cx.span_err(sp, "invalid Roman numeral");
@@ -107,7 +107,7 @@ fn expand_rn(cx: &mut ExtCtxt, sp: Span, args: &[TokenTree])
         }
     }
 
-    MacEager::expr(cx.expr_u32(sp, total))
+    MacEager::expr(cx.expr_usize(sp, total))
 }
 
 #[plugin_registrar]

branches/snap-stage3/src/libcore/cell.rs

@@ -631,6 +631,9 @@ impl<'b, T> DerefMut for RefMut<'b, T> {
 ///
 /// Types like `Cell<T>` and `RefCell<T>` use this type to wrap their internal data.
 ///
+/// `UnsafeCell<T>` doesn't opt-out from any marker traits, instead, types with an `UnsafeCell<T>`
+/// interior are expected to opt-out from those traits themselves.
+///
 /// # Examples
 ///
 /// ```

branches/snap-stage3/src/libcore/marker.rs

@@ -193,9 +193,14 @@ pub trait Copy : MarkerTrait {
 /// the `sync` crate do ensure that any mutation cannot cause data
 /// races.  Hence these types are `Sync`.
 ///
-/// Any types with interior mutability must also use the `std::cell::UnsafeCell` wrapper around the
-/// value(s) which can be mutated when behind a `&` reference; not doing this is undefined
-/// behaviour (for example, `transmute`-ing from `&T` to `&mut T` is illegal).
+/// Users writing their own types with interior mutability (or anything
+/// else that is not thread-safe) should use the `NoSync` marker type
+/// (from `std::marker`) to ensure that the compiler doesn't
+/// consider the user-defined type to be `Sync`.  Any types with
+/// interior mutability must also use the `std::cell::UnsafeCell` wrapper
+/// around the value(s) which can be mutated when behind a `&`
+/// reference; not doing this is undefined behaviour (for example,
+/// `transmute`-ing from `&T` to `&mut T` is illegal).
 #[stable(feature = "rust1", since = "1.0.0")]
 #[lang="sync"]
 #[rustc_on_unimplemented = "`{Self}` cannot be shared between threads safely"]

branches/snap-stage3/src/libcore/num/mod.rs

@@ -1517,7 +1517,7 @@ pub trait FromStrRadix {
     fn from_str_radix(str: &str, radix: u32) -> Result<Self, Self::Err>;
 }
 
-/// A utility function that just calls `FromStrRadix::from_str_radix`.
+/// A utility function that just calls FromStrRadix::from_str_radix.
 #[unstable(feature = "core", reason = "needs reevaluation")]
 pub fn from_str_radix<T: FromStrRadix>(str: &str, radix: u32)
                                        -> Result<T, T::Err> {

branches/snap-stage3/src/librustc_driver/driver.rs

@@ -927,7 +927,7 @@ pub fn build_output_filenames(input: &Input,
             // We want to toss everything after the final '.'
             let dirpath = match *odir {
                 Some(ref d) => d.clone(),
-                None => PathBuf::new("")
+                None => PathBuf::new(".")
             };
 
             // If a crate name is present, we use it as the link name
@@ -954,11 +954,8 @@ pub fn build_output_filenames(input: &Input,
             if *odir != None {
                 sess.warn("ignoring --out-dir flag due to -o flag.");
             }
-
-            let cur_dir = Path::new("");
-
             OutputFilenames {
-                out_directory: out_file.parent().unwrap_or(cur_dir).to_path_buf(),
+                out_directory: out_file.parent().unwrap().to_path_buf(),
                 out_filestem: out_file.file_stem().unwrap()
                                       .to_str().unwrap().to_string(),
                 single_output_file: ofile,

branches/snap-stage3/src/test/run-make/bare-outfile/Makefile

@@ -7,7 +7,9 @@
 // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
+//
+// ignore-lexer-test FIXME #15877
 
 trait U { fn f(self); }
-impl U for isize { fn f(self) {} }
+impl U for int { fn f(self) {} }
 pub fn main() { 4.f(); }

branches/snap-stage3/src/test/run-make/bare-outfile/foo.rs

@@ -7,6 +7,8 @@
 // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
+//
+// ignore-lexer-test FIXME #15879
 
 // Test syntax checks for `?Sized` syntax.
 

branches/snap-stage3/src/test/run-pass/issue-4759-1.rs

@@ -7,6 +7,8 @@
 // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
+//
+// ignore-lexer-test FIXME #15879
 
 #![allow(unknown_features)]
 #![feature(box_syntax)]