---

yaml
---
r: 140759
b: refs/heads/try2
c: 06ef889
h: refs/heads/master
i:
  140757: bd080b7
  140755: 31a95fc
  140751: 3094429
v: v3

Author: pcwalton

[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: 1b883365bc0813f5775c8207e414b7973e947a76
+refs/heads/try2: 06ef889cdc77db862d526bf6a607ecdf3ee80beb
 refs/heads/dist-snap: ba4081a5a8573875fed17545846f6f6902c8ba8d
 refs/tags/release-0.2: c870d2dffb391e14efb05aa27898f1f6333a9596
 refs/tags/release-0.3: b5f0d0f648d9a6153664837026ba1be43d3e2503

branches/try2/doc/rust.md

@@ -618,7 +618,7 @@ each of which may have some number of [attributes](#attributes) attached to it.
 
 ~~~~~~~~ {.ebnf .gram}
 item : mod_item | fn_item | type_item | struct_item | enum_item
-     | static_item | trait_item | impl_item | foreign_mod_item ;
+     | static_item | trait_item | impl_item | extern_block ;
 ~~~~~~~~
 
 An _item_ is a component of a crate; some module items can be defined in crate
@@ -752,10 +752,11 @@ link_attr : ident '=' literal ;
 ~~~~~~~~
 
 An _`extern mod` declaration_ specifies a dependency on an external crate.
-The external crate is then bound into the declaring scope as the `ident` provided in the `extern_mod_decl`.
+The external crate is then bound into the declaring scope
+as the `ident` provided in the `extern_mod_decl`.
 
-The external crate is resolved to a specific `soname` at compile time, and a
-runtime linkage requirement to that `soname` is passed to the linker for
+The external crate is resolved to a specific `soname` at compile time,
+and a runtime linkage requirement to that `soname` is passed to the linker for
 loading at runtime. The `soname` is resolved at compile time by scanning the
 compiler's library path and matching the `link_attrs` provided in the
 `use_decl` against any `#link` attributes that were declared on the external
@@ -992,10 +993,10 @@ Thus the return type on `f` only needs to reflect the `if` branch of the conditi
 #### Extern functions
 
 Extern functions are part of Rust's foreign function interface,
-providing the opposite functionality to [foreign modules](#foreign-modules).
-Whereas foreign modules allow Rust code to call foreign code,
-extern functions with bodies defined in Rust code _can be called by foreign code_.
-They are defined in the same way as any other Rust function,
+providing the opposite functionality to [external blocks](#external-blocks).
+Whereas external blocks allow Rust code to call foreign code,
+extern functions with bodies defined in Rust code _can be called by foreign
+code_. They are defined in the same way as any other Rust function,
 except that they have the `extern` modifier.
 
 ~~~
@@ -1011,7 +1012,8 @@ let fptr: *u8 = new_vec;
 ~~~
 
 The primary motivation for extern functions is
-to create callbacks for foreign functions that expect to receive function pointers.
+to create callbacks for foreign functions that expect to receive function
+pointers.
 
 ### Type definitions
 
@@ -1308,64 +1310,61 @@ impl Seq<bool> for u32 {
 }
 ~~~~
 
-### Foreign modules
+### External blocks
 
 ~~~ {.ebnf .gram}
-foreign_mod_item : "extern mod" ident '{' foreign_mod '} ;
-foreign_mod : [ foreign_fn ] * ;
+extern_block_item : "extern" '{' extern_block '} ;
+extern_block : [ foreign_fn ] * ;
 ~~~
 
-Foreign modules form the basis for Rust's foreign function interface. A
-foreign module describes functions in external, non-Rust
-libraries.
-Functions within foreign modules are declared in the same way as other Rust functions,
-with the exception that they may not have a body and are instead terminated by a semicolon.
+External blocks form the basis for Rust's foreign function interface.
+Declarations in an external block describe symbols
+in external, non-Rust libraries.
+
+Functions within external blocks
+are declared in the same way as other Rust functions,
+with the exception that they may not have a body
+and are instead terminated by a semicolon.
 
 ~~~
 # use core::libc::{c_char, FILE};
 # #[nolink]
 
-extern mod c {
+extern {
     fn fopen(filename: *c_char, mode: *c_char) -> *FILE;
 }
 ~~~
 
-Functions within foreign modules may be called by Rust code, just like functions defined in Rust.
-The Rust compiler automatically translates between the Rust ABI and the foreign ABI.
-
-The name of the foreign module has special meaning to the Rust compiler in
-that it will treat the module name as the name of a library to link to,
-performing the linking as appropriate for the target platform. The name
-given for the foreign module will be transformed in a platform-specific way
-to determine the name of the library. For example, on Linux the name of the
-foreign module is prefixed with 'lib' and suffixed with '.so', so the
-foreign mod 'rustrt' would be linked to a library named 'librustrt.so'.
+Functions within external blocks may be called by Rust code,
+just like functions defined in Rust.
+The Rust compiler automatically translates
+between the Rust ABI and the foreign ABI.
 
-A number of [attributes](#attributes) control the behavior of foreign
-modules.
+A number of [attributes](#attributes) control the behavior of external
+blocks.
 
-By default foreign modules assume that the library they are calling use the
-standard C "cdecl" ABI. Other ABIs may be specified using the `abi`
-attribute as in
+By default external blocks assume
+that the library they are calling uses the standard C "cdecl" ABI.
+Other ABIs may be specified using the `abi` attribute as in
 
 ~~~{.xfail-test}
 // Interface to the Windows API
 #[abi = "stdcall"]
-extern mod kernel32 { }
+extern { }
 ~~~
 
-The `link_name` attribute allows the default library naming behavior to
-be overridden by explicitly specifying the name of the library.
+The `link_name` attribute allows the name of the library to be specified.
 
 ~~~{.xfail-test}
 #[link_name = "crypto"]
-extern mod mycrypto { }
+extern { }
 ~~~
 
-The `nolink` attribute tells the Rust compiler not to do any linking for the foreign module.
-This is particularly useful for creating foreign
-modules for libc, which tends to not follow standard library naming
-conventions and is linked to all Rust programs anyway.
+The `nolink` attribute tells the Rust compiler
+not to do any linking for the external block.
+This is particularly useful for creating external blocks for libc,
+which tends to not follow standard library naming conventions
+and is linked to all Rust programs anyway.
 
 ## Attributes
 
@@ -1425,8 +1424,6 @@ names are effectively reserved. Some significant attributes include:
 * The `test` attribute, for marking functions as unit tests.
 * The `allow`, `warn`, `forbid`, and `deny` attributes, for controlling lint checks. Lint checks supported
 by the compiler can be found via `rustc -W help`.
-* The `deriving` attribute, for automatically generating
-  implementations of certain traits.
 
 Other attributes may be added or removed during development of the language.
 
@@ -1528,47 +1525,6 @@ A complete list of the built-in language items follows:
 > **Note:** This list is likely to become out of date. We should auto-generate it
 > from `librustc/middle/lang_items.rs`.
 
-### Deriving
-
-The `deriving` attribute allows certain traits to be automatically
-implemented for data structures. For example, the following will
-create an `impl` for the `Eq` and `Clone` traits for `Foo`, the type
-parameter `T` will be given the `Eq` or `Clone` constraints for the
-appropriate `impl`:
-
-~~~
-#[deriving(Eq, Clone)]
-struct Foo<T> {
-    a: int,
-    b: T
-}
-~~~
-
-The generated `impl` for `Eq` is equivalent to
-
-~~~
-# struct Foo<T> { a: int, b: T }
-impl<T: Eq> Eq for Foo<T> {
-    fn eq(&self, other: &Foo<T>) -> bool {
-        self.a == other.a && self.b == other.b
-    }
-
-    fn ne(&self, other: &Foo<T>) -> bool {
-        self.a != other.a || self.b != other.b
-    }
-}
-~~~
-
-Supported traits for `deriving` are:
-
-* Comparison traits: `Eq`, `TotalEq`, `Ord`, `TotalOrd`.
-* Serialization: `Encodable`, `Decodable`. These require `std`.
-* `Clone`, to perform deep copies.
-* `IterBytes`, to iterate over the bytes in a data type.
-* `Rand`, to create a random instance of a data type.
-* `ToStr`, to convert to a string. For a type with this instance,
-  `obj.to_str()` has the same output as `fmt!("%?", obj)`.
-
 # Statements and expressions
 
 Rust is _primarily_ an expression language. This means that most forms of

branches/try2/doc/tutorial-ffi.md

@@ -237,7 +237,8 @@ convention to use:
 ~~~~
 #[cfg(target_os = "win32")]
 #[abi = "stdcall"]
-extern mod kernel32 {
+#[link_name = "kernel32"]
+extern {
     fn SetEnvironmentVariableA(n: *u8, v: *u8) -> int;
 }
 ~~~~

branches/try2/doc/tutorial.md

@@ -2290,27 +2290,6 @@ let nonsense = mycircle.radius() * mycircle.area();
 
 > ***Note:*** Trait inheritance does not actually work with objects yet
 
-## Deriving implementations for traits
-
-A small number of traits in `core` and `std` can have implementations
-that can be automatically derived. These instances are specified by
-placing the `deriving` attribute on a data type declaration. For
-example, the following will mean that `Circle` has an implementation
-for `Eq` and can be used with the equality operators, and that a value
-of type `ABC` can be randomly generated and converted to a string:
-
-~~~
-#[deriving(Eq)]
-struct Circle { radius: float }
-
-#[deriving(Rand, ToStr)]
-enum ABC { A, B, C }
-~~~
-
-The full list of derivable traits is `Eq`, `TotalEq`, `Ord`,
-`TotalOrd`, `Encodable` `Decodable`, `Clone`, `IterBytes`, `Rand` and
-`ToStr`.
-
 # Modules and crates
 
 The Rust namespace is arranged in a hierarchy of modules. Each source

branches/try2/mk/tools.mk

@@ -111,9 +111,6 @@ $$(TLIB$(1)_T_$(4)_H_$(3))/$(CFG_LIBRUST_$(4)):		\
 		$$(TSREQ$(1)_T_$(4)_H_$(3))					\
 		$$(TLIB$(1)_T_$(4)_H_$(3))/$(CFG_CORELIB_$(4))	\
 		$$(TLIB$(1)_T_$(4)_H_$(3))/$(CFG_STDLIB_$(4))	\
-		$$(TLIB$(1)_T_$(4)_H_$(3))/$(CFG_LIBRUSTPKG_$(4))	\
-		$$(TLIB$(1)_T_$(4)_H_$(3))/$(CFG_LIBRUSTI_$(4))		\
-		$$(TLIB$(1)_T_$(4)_H_$(3))/$(CFG_LIBRUSTDOC_$(4))	\
 		$$(TLIB$(1)_T_$(4)_H_$(3))/$(CFG_LIBRUSTC_$(4))
 	@$$(call E, compile_and_link: $$@)
 	$$(STAGE$(1)_T_$(4)_H_$(3)) -o $$@ $$< && touch $$@

branches/try2/src/driver/driver.rs

@@ -8,6 +8,9 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
+#[no_core];
+extern mod core(vers = "0.7-pre");
+
 #[cfg(rustpkg)]
 extern mod this(name = "rustpkg", vers = "0.7-pre");
 

branches/try2/src/libcore/os.rs

@@ -196,10 +196,10 @@ pub fn env() -> ~[(~str,~str)] {
         }
         #[cfg(unix)]
         unsafe fn get_env_pairs() -> ~[~str] {
-            extern mod rustrt {
+            extern {
                 unsafe fn rust_env_pairs() -> **libc::c_char;
             }
-            let environ = rustrt::rust_env_pairs();
+            let environ = rust_env_pairs();
             if (environ as uint == 0) {
                 fail!(fmt!("os::env() failure getting env string from OS: %s",
                            os::last_os_error()));
@@ -685,9 +685,8 @@ pub fn list_dir(p: &Path) -> ~[~str] {
         unsafe fn get_list(p: &Path) -> ~[~str] {
             use libc::{dirent_t};
             use libc::{opendir, readdir, closedir};
-            extern mod rustrt {
-                unsafe fn rust_list_dir_val(ptr: *dirent_t)
-                    -> *libc::c_char;
+            extern {
+                unsafe fn rust_list_dir_val(ptr: *dirent_t) -> *libc::c_char;
             }
             let input = p.to_str();
             let mut strings = ~[];
@@ -698,10 +697,8 @@ pub fn list_dir(p: &Path) -> ~[~str] {
         debug!("os::list_dir -- opendir() SUCCESS");
                 let mut entry_ptr = readdir(dir_ptr);
                 while (entry_ptr as uint != 0) {
-                    strings.push(
-                        str::raw::from_c_str(
-                            rustrt::rust_list_dir_val(
-                                entry_ptr)));
+                    strings.push(str::raw::from_c_str(rust_list_dir_val(
+                        entry_ptr)));
                     entry_ptr = readdir(dir_ptr);
                 }
                 closedir(dir_ptr);
@@ -729,25 +726,23 @@ pub fn list_dir(p: &Path) -> ~[~str] {
             };
             use unstable::exchange_alloc::{malloc_raw, free_raw};
             #[nolink]
-            extern mod rustrt {
+            extern {
                 unsafe fn rust_list_dir_wfd_size() -> libc::size_t;
                 unsafe fn rust_list_dir_wfd_fp_buf(wfd: *libc::c_void)
                     -> *u16;
             }
             fn star(p: &Path) -> Path { p.push("*") }
             do as_utf16_p(star(p).to_str()) |path_ptr| {
                 let mut strings = ~[];
-                let wfd_ptr = malloc_raw(
-                    rustrt::rust_list_dir_wfd_size() as uint);
+                let wfd_ptr = malloc_raw(rust_list_dir_wfd_size() as uint);
                 let find_handle =
                     FindFirstFileW(
                         path_ptr,
                         ::cast::transmute(wfd_ptr));
                 if find_handle as int != INVALID_HANDLE_VALUE {
                     let mut more_files = 1 as libc::c_int;
                     while more_files != 0 {
-                        let fp_buf = rustrt::rust_list_dir_wfd_fp_buf(
-                            wfd_ptr);
+                        let fp_buf = rust_list_dir_wfd_fp_buf(wfd_ptr);
                         if fp_buf as uint == 0 {
                             fail!(~"os::list_dir() failure:"+
                                   ~" got null ptr from wfd");

branches/try2/src/libcore/unstable/intrinsics.rs

@@ -20,16 +20,6 @@ pub extern "rust-intrinsic" {
     pub fn atomic_cxchg_acq(dst: &mut int, old: int, src: int) -> int;
     pub fn atomic_cxchg_rel(dst: &mut int, old: int, src: int) -> int;
 
-    #[cfg(not(stage0))]
-    pub fn atomic_load(src: &int) -> int;
-    #[cfg(not(stage0))]
-    pub fn atomic_load_acq(src: &int) -> int;
-
-    #[cfg(not(stage0))]
-    pub fn atomic_store(dst: &mut int, val: int);
-    #[cfg(not(stage0))]
-    pub fn atomic_store_rel(dst: &mut int, val: int);
-
     pub fn atomic_xchg(dst: &mut int, src: int) -> int;
     pub fn atomic_xchg_acq(dst: &mut int, src: int) -> int;
     pub fn atomic_xchg_rel(dst: &mut int, src: int) -> int;

branches/try2/src/libcore/util.rs

@@ -1,4 +1,4 @@
-// Copyright 2012-2013 The Rust Project Developers. See the COPYRIGHT
+// Copyright 2012 The Rust Project Developers. See the COPYRIGHT
 // file at the top-level directory of this distribution and at
 // http://rust-lang.org/COPYRIGHT.
 //
@@ -132,20 +132,6 @@ impl Drop for NonCopyable {
 
 pub fn NonCopyable() -> NonCopyable { NonCopyable { i: () } }
 
-
-/// A type with no inhabitants
-pub enum Void { }
-
-pub impl Void {
-    /// A utility function for ignoring this uninhabited type
-    fn uninhabited(&self) -> ! {
-        match *self {
-            // Nothing to match on
-        }
-    }
-}
-
-
 /**
 A utility function for indicating unreachable code. It will fail if
 executed. This is occasionally useful to put after loops that never