auto merge of #14835 : alexcrichton/rust/no-more-at, r=brson

All functionality is now available through `Gc<T>` and `box(GC) expr`. This change also removes `GC` from the prelude (it's an experimental feature).

Author: bors

src/compiletest/compiletest.rs

@@ -20,14 +20,7 @@ extern crate test;
 extern crate getopts;
 extern crate green;
 extern crate rustuv;
-
-#[cfg(stage0)]
-#[phase(syntax, link)]
-extern crate log;
-
-#[cfg(not(stage0))]
-#[phase(plugin, link)]
-extern crate log;
+#[phase(plugin, link)] extern crate log;
 
 extern crate regex;
 

src/liballoc/lib.rs

@@ -70,25 +70,16 @@
 #![no_std]
 #![feature(phase)]
 
-#[cfg(stage0)]
-#[phase(syntax, link)]
-extern crate core;
-
-#[cfg(not(stage0))]
 #[phase(plugin, link)]
 extern crate core;
-
 extern crate libc;
 
-
 // Allow testing this library
 
 #[cfg(test)] extern crate debug;
 #[cfg(test)] extern crate native;
-#[cfg(test, stage0)] #[phase(syntax, link)] extern crate std;
-#[cfg(test, stage0)] #[phase(syntax, link)] extern crate log;
-#[cfg(test, not(stage0))] #[phase(plugin, link)] extern crate std;
-#[cfg(test, not(stage0))] #[phase(plugin, link)] extern crate log;
+#[cfg(test)] #[phase(plugin, link)] extern crate std;
+#[cfg(test)] #[phase(plugin, link)] extern crate log;
 
 // Heaps provided for low-level allocation strategies
 

src/libcollections/lib.rs

@@ -23,24 +23,15 @@
 #![feature(macro_rules, managed_boxes, default_type_params, phase, globs)]
 #![no_std]
 
+#[phase(plugin, link)] extern crate core;
 extern crate alloc;
 
-#[cfg(stage0)]
-#[phase(syntax, link)]
-extern crate core;
-
-#[cfg(not(stage0))]
-#[phase(plugin, link)]
-extern crate core;
-
 #[cfg(test)] extern crate native;
 #[cfg(test)] extern crate test;
 #[cfg(test)] extern crate debug;
 
-#[cfg(test, stage0)] #[phase(syntax, link)] extern crate std;
-#[cfg(test, stage0)] #[phase(syntax, link)] extern crate log;
-#[cfg(test, not(stage0))] #[phase(plugin, link)] extern crate std;
-#[cfg(test, not(stage0))] #[phase(plugin, link)] extern crate log;
+#[cfg(test)] #[phase(plugin, link)] extern crate std;
+#[cfg(test)] #[phase(plugin, link)] extern crate log;
 
 use core::prelude::*;
 

src/libcollections/ringbuf.rs

@@ -419,6 +419,7 @@ impl<T: fmt::Show> fmt::Show for RingBuf<T> {
 mod tests {
     use std::fmt::Show;
     use std::prelude::*;
+    use std::gc::{GC, Gc};
     use test::Bencher;
     use test;
 
@@ -473,10 +474,10 @@ mod tests {
 
     #[test]
     fn test_boxes() {
-        let a: @int = @5;
-        let b: @int = @72;
-        let c: @int = @64;
-        let d: @int = @175;
+        let a: Gc<int> = box(GC) 5;
+        let b: Gc<int> = box(GC) 72;
+        let c: Gc<int> = box(GC) 64;
+        let d: Gc<int> = box(GC) 175;
 
         let mut deq = RingBuf::new();
         assert_eq!(deq.len(), 0);
@@ -621,7 +622,8 @@ mod tests {
 
     #[test]
     fn test_param_at_int() {
-        test_parameterized::<@int>(@5, @72, @64, @175);
+        test_parameterized::<Gc<int>>(box(GC) 5, box(GC) 72,
+                                      box(GC) 64, box(GC) 175);
     }
 
     #[test]

src/libcore/iter.rs

@@ -2345,6 +2345,7 @@ mod tests {
     use num;
     use realstd::vec::Vec;
     use realstd::slice::Vector;
+    use realstd::gc::GC;
 
     use cmp;
     use realstd::owned::Box;
@@ -2835,7 +2836,8 @@ mod tests {
     #[test]
     #[should_fail]
     fn test_rposition_fail() {
-        let v = [(box 0, @0), (box 0, @0), (box 0, @0), (box 0, @0)];
+        let v = [(box 0, box(GC) 0), (box 0, box(GC) 0),
+                 (box 0, box(GC) 0), (box 0, box(GC) 0)];
         let mut i = 0;
         v.iter().rposition(|_elt| {
             if i == 2 {

src/libdebug/reflect.rs

@@ -18,6 +18,7 @@ Runtime type reflection
 
 use std::intrinsics::{Disr, Opaque, TyDesc, TyVisitor};
 use std::mem;
+use std::gc::Gc;
 
 /**
  * Trait for visitor that wishes to reflect on data.
@@ -219,9 +220,9 @@ impl<V:TyVisitor + MovePtr> TyVisitor for MovePtrAdaptor<V> {
     }
 
     fn visit_box(&mut self, mtbl: uint, inner: *TyDesc) -> bool {
-        self.align_to::<@u8>();
+        self.align_to::<Gc<u8>>();
         if ! self.inner.visit_box(mtbl, inner) { return false; }
-        self.bump_past::<@u8>();
+        self.bump_past::<Gc<u8>>();
         true
     }
 

src/libdebug/repr.rs

@@ -288,7 +288,7 @@ impl<'a> TyVisitor for ReprVisitor<'a> {
                         _align: uint) -> bool { fail!(); }
 
     fn visit_box(&mut self, mtbl: uint, inner: *TyDesc) -> bool {
-        try!(self, self.writer.write(['@' as u8]));
+        try!(self, self.writer.write("box(GC) ".as_bytes()));
         self.write_mut_qualifier(mtbl);
         self.get::<&raw::Box<()>>(|this, b| {
             let p = &b.data as *() as *u8;
@@ -591,6 +591,7 @@ fn test_repr() {
     use std::io::stdio::println;
     use std::char::is_alphabetic;
     use std::mem::swap;
+    use std::gc::GC;
 
     fn exact_test<T>(t: &T, e:&str) {
         let mut m = io::MemWriter::new();
@@ -605,7 +606,7 @@ fn test_repr() {
     exact_test(&1.234, "1.234f64");
     exact_test(&("hello"), "\"hello\"");
 
-    exact_test(&(@10), "@10");
+    exact_test(&(box(GC) 10), "box(GC) 10");
     exact_test(&(box 10), "box 10");
     exact_test(&(&10), "&10");
     let mut x = 10;
@@ -619,8 +620,8 @@ fn test_repr() {
                "&[\"hi\", \"there\"]");
     exact_test(&(P{a:10, b:1.234}),
                "repr::P{a: 10, b: 1.234f64}");
-    exact_test(&(@P{a:10, b:1.234}),
-               "@repr::P{a: 10, b: 1.234f64}");
+    exact_test(&(box(GC) P{a:10, b:1.234}),
+               "box(GC) repr::P{a: 10, b: 1.234f64}");
     exact_test(&(box P{a:10, b:1.234}),
                "box repr::P{a: 10, b: 1.234f64}");
 

src/libflate/lib.rs

@@ -27,8 +27,7 @@ Simple [DEFLATE][def]-based compression. This is a wrapper around the
        html_root_url = "http://doc.rust-lang.org/")]
 #![feature(phase)]
 
-#[cfg(test, stage0)] #[phase(syntax, link)] extern crate log;
-#[cfg(test, not(stage0))] #[phase(plugin, link)] extern crate log;
+#[cfg(test)] #[phase(plugin, link)] extern crate log;
 
 extern crate libc;
 

src/libfourcc/lib.rs

@@ -63,6 +63,8 @@ use syntax::parse::token;
 use syntax::parse::token::InternedString;
 use rustc::plugin::Registry;
 
+use std::gc::Gc;
+
 #[plugin_registrar]
 pub fn plugin_registrar(reg: &mut Registry) {
     reg.register_macro("fourcc", expand_syntax_ext);
@@ -130,7 +132,8 @@ struct Ident {
     span: Span
 }
 
-fn parse_tts(cx: &ExtCtxt, tts: &[ast::TokenTree]) -> (@ast::Expr, Option<Ident>) {
+fn parse_tts(cx: &ExtCtxt,
+             tts: &[ast::TokenTree]) -> (Gc<ast::Expr>, Option<Ident>) {
     let p = &mut parse::new_parser_from_tts(cx.parse_sess(),
                                             cx.cfg(),
                                             tts.iter()

src/libgetopts/lib.rs

@@ -90,8 +90,7 @@
 #![deny(missing_doc)]
 
 #[cfg(test)] extern crate debug;
-#[cfg(test, stage0)] #[phase(syntax, link)] extern crate log;
-#[cfg(test, not(stage0))] #[phase(plugin, link)] extern crate log;
+#[cfg(test)] #[phase(plugin, link)] extern crate log;
 
 use std::cmp::PartialEq;
 use std::fmt;