---

yaml
---
r: 145276
b: refs/heads/try2
c: 407d179
h: refs/heads/master
v: v3

Author: bors

[refs]

@@ -5,7 +5,7 @@ refs/heads/snap-stage3: 78a7676898d9f80ab540c6df5d4c9ce35bb50463
 refs/heads/try: 519addf6277dbafccbb4159db4b710c37eaa2ec5
 refs/tags/release-0.1: 1f5c5126e96c79d22cb7862f75304136e204f105
 refs/heads/ndm: f3868061cd7988080c30d6d5bf352a5a5fe2460b
-refs/heads/try2: 963707f45d935e938adde9e37b56355a915660bd
+refs/heads/try2: 407d179f4e0b625e6911ebaf72c87cd35935fb06
 refs/heads/dist-snap: ba4081a5a8573875fed17545846f6f6902c8ba8d
 refs/tags/release-0.2: c870d2dffb391e14efb05aa27898f1f6333a9596
 refs/tags/release-0.3: b5f0d0f648d9a6153664837026ba1be43d3e2503

branches/try2/RELEASES.txt

@@ -1,3 +1,148 @@
+Version 0.8 (October 2013)
+--------------------------
+
+   * ~2100 changes, numerous bugfixes
+
+   * Language
+      * The `for` loop syntax has changed to work with the `Iterator` trait.
+      * At long last, unwinding works on Windows.
+      * Default methods definitely mostly work.
+      * Many trait inheritance bugs fixed.
+      * Owned and borrowed trait objects work more reliably.
+      * `copy` is no longer a keyword. It has been replaced by the `Clone` trait.
+      * rustc no longer emits code for the `debug!` macro unless it is passed
+        `--cfg debug`
+      * mod.rs is now "blessed". When loading `mod foo;`, rustc will now look
+        for foo.rs, then foo/mod.rs, and will generate an error when both are
+        present.
+      * Strings no longer contain trailing nulls. The new `std::c_str` module
+        provides new mechanisms for converting to C strings.
+      * The type of foreign functions is now `extern "C" fn` instead of `*u8'.
+      * The FFI has been overhauled such that foreign functions are called directly,
+        instead of through a stack-switching wrapper.
+      * Calling a foreign function must be done through a Rust function with the
+        `#[fixed_stack_segment]` attribute.
+      * The `externfn!` macro can be used to declare both a foreign function and
+        a `#[fixed_stack_segment]` wrapper at once.
+      * `pub` and `priv` modifiers on `extern` blocks are no longer parsed.
+      * `unsafe` is no longer allowed on extern fns - they are all unsafe.
+      * `priv` is disallowed everywhere except for struct fields and enum variants.
+      * `&T` (besides `&'static T`) is no longer allowed in `@T`.
+      * `ref` bindings in irrefutable patterns work correctly now.
+      * `char` is now prevented from containing invalid code points.
+      * Casting to `bool` is no longer allowed.
+      * `yield` is a reserved keyword.
+      * `typeof` is a reserved keyword.
+      * Crates may be imported by URL with `extern mod foo = "url";`.
+      * Explicit enum discriminants may be given as uints as in `enum E { V = 0u }`
+      * Static vectors can be initialized with repeating elements,
+        e.g. `static foo: [u8, .. 100]: [0, .. 100];`.
+      * Static structs can be initialized with functional record update,
+        e.g. `static foo: Foo = Foo { a: 5, .. bar };`.
+      * `cfg!` can be used to conditionally execute code based on the crate
+        configuration, similarly to `#[cfg(...)]`.
+      * The `unnecessary_qualification` lint detects unneeded module
+        prefixes (default: allow).
+      * Arithmetic operations have been implemented on the SIMD types in
+        `std::unstable::simd`.
+      * Exchange allocation headers were removed, reducing memory usage.
+      * `format!` implements a completely new, extensible, and higher-performance
+        string formatting system. It will replace `fmt!`.
+      * `print!` and `println!` write formatted strings (using the `format!`
+        extension) to stdout.
+      * `write!` and `writeln!` write formatted strings (using the `format!`
+        extension) to the new Writers in `std::rt::io`.
+      * The library section in which a function or static is placed may
+        be specified with `#[link_section = "..."]`.
+      * The `proto!` syntax extension for defining bounded message protocols
+        was removed.
+      * `macro_rules!` is hygenic for `let` declarations.
+      * The `#[export_name]` attribute specifies the name of a symbol.
+      * `unreachable!` can be used to indicate unreachable code, and fails
+        if executed.
+
+   * Libraries
+      * std: Transitioned to the new runtime, written in Rust.
+      * std: Added an experimental I/O library, `rt::io`, based on the new
+        runtime.
+      * std: A new generic `range` function was added to the prelude, replacing
+        `uint::range` and friends.
+      * std: `range_rev` no longer exists. Since range is an iterator it can be
+        reversed with `range(lo, hi).invert()`.
+      * std: The `chain` method on option renamed to `and_then`; `unwrap_or_default`
+        renamed to `unwrap_or`.
+      * std: The `iterator` module was renamed to `iter`.
+      * std: Integral types now support the `checked_add`, `checked_sub`, and
+        `checked_mul` operations for detecting overflow.
+      * std: Many methods in `str`, `vec`, `option, `result` were renamed for
+        consistency.
+      * std: Methods are standardizing on conventions for casting methods:
+        `to_foo` for copying, `into_foo` for moving, `as_foo` for temporary
+        and cheap casts.
+      * std: The `CString` type in `c_str` provides new ways to convert to and
+        from C strings.
+      * std: `DoubleEndedIterator` can yield elements in two directions.
+      * std: The `mut_split` method on vectors partitions an `&mut [T]` into
+        two splices.
+      * std: `str::from_bytes` renamed to `str::from_utf8`.
+      * std: `pop_opt` and `shift_opt` methods added to vectors.
+      * std: The task-local data interface no longer uses @, and keys are
+        no longer function pointers.
+      * std: The `swap_unwrap` method of `Option` renamed to `take_unwrap`.
+      * std: Added `SharedPort` to `comm`.
+      * std: `Eq` has a default method for `ne`; only `eq` is required
+        in implementations.
+      * std: `Ord` has default methods for `le`, `gt` and `le`; only `lt`
+        is required in implementations.
+      * std: `is_utf8` performance is improved, impacting many string functions.
+      * std: `os::MemoryMap` provides cross-platform mmap.
+      * std: `ptr::offset` is now unsafe, but also more optimized. Offsets that
+        are not 'in-bounds' are considered undefined.
+      * std: Many freestanding functions in `vec` removed in favor of methods.
+      * std: Many freestanding functions on scalar types removed in favor of
+        methods.
+      * std: Many options to task builders were removed since they don't make
+        sense in the new scheduler design.
+      * std: More containers implement `FromIterator` so can be created by the
+        `collect` method.
+      * std: More complete atomic types in `unstable::atomics`.
+      * std: `comm::PortSet` removed.
+      * std: Mutating methods in the `Set` and `Map` traits have been moved into
+        the `MutableSet` and `MutableMap` traits. `Container::is_empty`,
+        `Map::contains_key`, `MutableMap::insert`, and `MutableMap::remove` have
+        default implementations.
+      * extra: `dlist`, the doubly-linked list was modernized.
+      * extra: Added a `hex` module with `ToHex` and `FromHex` traits.
+      * extra: Added `glob` module, replacing `std::os::glob`.
+      * extra: `rope` was removed.
+      * extra: `deque` was renamed to `ringbuf`. `RingBuf` implements `Deque`.
+      * extra: `net`, and `timer` were removed. The experimental replacements
+        are `std::rt::io::net` and `std::rt::io::timer`.
+      * extra: Iterators implemented for `SmallIntMap`.
+      * extra: Iterators implemented for `Bitv` and `BitvSet`.
+      * extra: `SmallIntSet` removed. Use `BitvSet`.
+      * extra: Performance of JSON parsing greatly improved.
+      * extra: `semver` updated to SemVer 2.0.0.
+      * extra: `term` handles more terminals correctly.
+      * extra: `dbg` module removed.
+
+   * Other
+      * rustc's debug info generation (`-Z debug-info`) is greatly improved.
+      * rustc accepts `--target-cpu` to compile to a specific CPU architecture,
+        similarly to gcc's `--march` flag.
+      * rustpkg has received many improvements.
+      * rustpkg supports git tags as package IDs.
+      * rustpkg builds into target-specific directories so it can be used for
+        cross-compiling.
+      * The number of concurrent test tasks is controlled by the environment
+        variable RUST_TEST_TASKS.
+      * The test harness can now report metrics for benchmarks.
+      * All tools have man pages.
+      * Programs compiled with `--test` now support the `-h` and `--help` flags.
+      * The runtime uses jemalloc for allocations.
+      * Segmented stacks are temporarily disabled as part of the transition to
+        the new runtime. Stack overflows are possible!
+
 Version 0.7 (July 2013)
 -----------------------
 

branches/try2/src/librustc/middle/lang_items.rs

@@ -59,36 +59,36 @@ pub enum LangItem {
 
     StrEqFnLangItem,                   // 19
     UniqStrEqFnLangItem,               // 20
-    FailFnLangItem,                    // 22
-    FailBoundsCheckFnLangItem,         // 23
-    ExchangeMallocFnLangItem,          // 24
-    ClosureExchangeMallocFnLangItem,   // 25
-    ExchangeFreeFnLangItem,            // 26
-    MallocFnLangItem,                  // 27
-    FreeFnLangItem,                    // 28
-    BorrowAsImmFnLangItem,             // 29
-    BorrowAsMutFnLangItem,             // 30
-    ReturnToMutFnLangItem,             // 31
-    CheckNotBorrowedFnLangItem,        // 32
-    StrDupUniqFnLangItem,              // 33
-    RecordBorrowFnLangItem,            // 34
-    UnrecordBorrowFnLangItem,          // 35
-
-    StartFnLangItem,                   // 36
-
-    TyDescStructLangItem,              // 37
-    TyVisitorTraitLangItem,            // 38
-    OpaqueStructLangItem,              // 39
+    FailFnLangItem,                    // 21
+    FailBoundsCheckFnLangItem,         // 22
+    ExchangeMallocFnLangItem,          // 23
+    ClosureExchangeMallocFnLangItem,   // 24
+    ExchangeFreeFnLangItem,            // 25
+    MallocFnLangItem,                  // 26
+    FreeFnLangItem,                    // 27
+    BorrowAsImmFnLangItem,             // 28
+    BorrowAsMutFnLangItem,             // 29
+    ReturnToMutFnLangItem,             // 30
+    CheckNotBorrowedFnLangItem,        // 31
+    StrDupUniqFnLangItem,              // 32
+    RecordBorrowFnLangItem,            // 33
+    UnrecordBorrowFnLangItem,          // 34
+
+    StartFnLangItem,                   // 35
+
+    TyDescStructLangItem,              // 36
+    TyVisitorTraitLangItem,            // 37
+    OpaqueStructLangItem,              // 38
 }
 
 pub struct LanguageItems {
-    items: [Option<DefId>, ..41]
+    items: [Option<DefId>, ..39]
 }
 
 impl LanguageItems {
     pub fn new() -> LanguageItems {
         LanguageItems {
-            items: [ None, ..41 ]
+            items: [ None, ..39 ]
         }
     }
 
@@ -122,27 +122,26 @@ impl LanguageItems {
 
             19 => "str_eq",
             20 => "uniq_str_eq",
-            21 => "log_type",
-            22 => "fail_",
-            23 => "fail_bounds_check",
-            24 => "exchange_malloc",
-            25 => "closure_exchange_malloc",
-            26 => "exchange_free",
-            27 => "malloc",
-            28 => "free",
-            29 => "borrow_as_imm",
-            30 => "borrow_as_mut",
-            31 => "return_to_mut",
-            32 => "check_not_borrowed",
-            33 => "strdup_uniq",
-            34 => "record_borrow",
-            35 => "unrecord_borrow",
-
-            36 => "start",
-
-            37 => "ty_desc",
-            38 => "ty_visitor",
-            39 => "opaque",
+            21 => "fail_",
+            22 => "fail_bounds_check",
+            23 => "exchange_malloc",
+            24 => "closure_exchange_malloc",
+            25 => "exchange_free",
+            26 => "malloc",
+            27 => "free",
+            28 => "borrow_as_imm",
+            29 => "borrow_as_mut",
+            30 => "return_to_mut",
+            31 => "check_not_borrowed",
+            32 => "strdup_uniq",
+            33 => "record_borrow",
+            34 => "unrecord_borrow",
+
+            35 => "start",
+
+            36 => "ty_desc",
+            37 => "ty_visitor",
+            38 => "opaque",
 
             _ => "???"
         }

branches/try2/src/libstd/option.rs

@@ -467,23 +467,14 @@ impl<T: Default> Option<T> {
             None => Default::default()
         }
     }
-
-    /// Returns self or `Some`-wrapped default value
-    #[inline]
-    pub fn or_default(self) -> Option<T> {
-        match self {
-            None => Some(Default::default()),
-            x => x,
-        }
-    }
 }
 
 impl<T> Default for Option<T> {
     #[inline]
     fn default() -> Option<T> { None }
 }
 
-impl<T:Zero> Option<T> {
+impl<T: Zero> Option<T> {
     /// Returns the contained value or zero (for this type)
     #[inline]
     pub fn unwrap_or_zero(self) -> T {
@@ -492,15 +483,6 @@ impl<T:Zero> Option<T> {
             None => Zero::zero()
         }
     }
-
-    /// Returns self or `Some`-wrapped zero value
-    #[inline]
-    pub fn or_zero(self) -> Option<T> {
-        match self {
-            None => Some(Zero::zero()),
-            x => x
-        }
-    }
 }
 
 /// An iterator that yields either one or zero elements

branches/try2/src/libstd/rt/io/process.rs

@@ -151,6 +151,7 @@ mod tests {
 
     #[test]
     #[cfg(unix, not(android))]
+    #[ignore] // FIXME(#9341)
     fn smoke() {
         let io = ~[];
         let args = ProcessConfig {
@@ -168,6 +169,7 @@ mod tests {
 
     #[test]
     #[cfg(unix, not(android))]
+    #[ignore] // FIXME(#9341)
     fn smoke_failure() {
         let io = ~[];
         let args = ProcessConfig {
@@ -185,6 +187,7 @@ mod tests {
 
     #[test]
     #[cfg(unix, not(android))]
+    #[ignore] // FIXME(#9341)
     fn exit_reported_right() {
         let io = ~[];
         let args = ProcessConfig {
@@ -225,6 +228,7 @@ mod tests {
 
     #[test]
     #[cfg(unix, not(android))]
+    #[ignore] // FIXME(#9341)
     fn stdout_works() {
         let pipe = PipeStream::new().unwrap();
         let io = ~[Ignored, CreatePipe(pipe, false, true)];
@@ -240,6 +244,7 @@ mod tests {
 
     #[test]
     #[cfg(unix, not(android))]
+    #[ignore] // FIXME(#9341)
     fn set_cwd_works() {
         let pipe = PipeStream::new().unwrap();
         let io = ~[Ignored, CreatePipe(pipe, false, true)];
@@ -256,6 +261,7 @@ mod tests {
 
     #[test]
     #[cfg(unix, not(android))]
+    #[ignore] // FIXME(#9341)
     fn stdin_works() {
         let input = PipeStream::new().unwrap();
         let output = PipeStream::new().unwrap();

branches/try2/src/libsyntax/ext/deriving/default.rs

@@ -47,9 +47,7 @@ fn default_substructure(cx: @ExtCtxt, span: Span, substr: &Substructure) -> @Exp
         cx.ident_of("Default"),
         cx.ident_of("default")
     ];
-    let default_call = || {
-        cx.expr_call_global(span, default_ident.clone(), ~[])
-    };
+    let default_call = cx.expr_call_global(span, default_ident.clone(), ~[]);
 
     return match *substr.fields {
         StaticStruct(_, ref summary) => {
@@ -58,13 +56,13 @@ fn default_substructure(cx: @ExtCtxt, span: Span, substr: &Substructure) -> @Exp
                     if count == 0 {
                         cx.expr_ident(span, substr.type_ident)
                     } else {
-                        let exprs = vec::from_fn(count, |_| default_call());
+                        let exprs = vec::from_elem(count, default_call);
                         cx.expr_call_ident(span, substr.type_ident, exprs)
                     }
                 }
                 Right(ref fields) => {
                     let default_fields = do fields.map |ident| {
-                        cx.field_imm(span, *ident, default_call())
+                        cx.field_imm(span, *ident, default_call)
                     };
                     cx.expr_struct_ident(span, substr.type_ident, default_fields)
                 }