librustc: Stop reexporting the standard modules from prelude.

Author: pcwalton

doc/rust.md

@@ -1840,6 +1840,7 @@ is bounds-checked at run-time. When the check fails, it will put the
 task in a _failing state_.
 
 ~~~~
+# use std::task;
 # do task::spawn_unlinked {
 
 ([1, 2, 3, 4])[0];
@@ -2168,7 +2169,7 @@ fn ten_times(f: &fn(int)) {
     }
 }
 
-ten_times(|j| io::println(fmt!("hello, %d", j)));
+ten_times(|j| println(fmt!("hello, %d", j)));
 
 ~~~~
 
@@ -2189,7 +2190,7 @@ An example:
 let mut i = 0;
 
 while i < 10 {
-    io::println("hello\n");
+    println("hello\n");
     i = i + 1;
 }
 ~~~~
@@ -2335,6 +2336,7 @@ for v.each |e| {
 An example of a for loop over a series of integers:
 
 ~~~~
+# use std::uint;
 # fn bar(b:uint) { }
 for uint::range(0, 256) |i| {
     bar(i);
@@ -2798,6 +2800,7 @@ the vtable pointer for the `T` implementation of `R`, and the pointer value of `
 An example of an object type:
 
 ~~~~~~~~
+# use std::int;
 trait Printable {
   fn to_str(&self) -> ~str;
 }
@@ -2807,7 +2810,7 @@ impl Printable for int {
 }
 
 fn print(a: @Printable) {
-   io::println(a.to_str());
+   println(a.to_str());
 }
 
 fn main() {

doc/tutorial-ffi.md

@@ -149,7 +149,9 @@ A type with the same functionality as owned boxes can be implemented by
 wrapping `malloc` and `free`:
 
 ~~~~
+use std::cast;
 use std::libc::{c_void, size_t, malloc, free};
+use std::ptr;
 use std::unstable::intrinsics;
 use std::util;
 

doc/tutorial-tasks.md

@@ -120,6 +120,7 @@ should interleave the output in vaguely random order.
 ~~~
 # use std::io::print;
 # use std::task::spawn;
+# use std::int;
 
 for int::range(0, 20) |child_task_number| {
     do spawn {
@@ -236,6 +237,7 @@ Instead we can use a `SharedChan`, a type that allows a single
 ~~~
 # use std::task::spawn;
 # use std::comm::{stream, SharedChan};
+# use std::uint;
 
 let (port, chan) = stream();
 let chan = SharedChan::new(chan);
@@ -269,6 +271,7 @@ might look like the example below.
 ~~~
 # use std::task::spawn;
 # use std::comm::stream;
+# use std::vec;
 
 // Create a vector of ports, one for each child task
 let ports = do vec::from_fn(3) |init_val| {
@@ -310,6 +313,8 @@ the future needs to be mutable so that it can save the result for next time `get
 Here is another example showing how futures allow you to background computations. The workload will
 be distributed on the available cores.
 ~~~
+# use std::vec;
+# use std::uint;
 fn partial_sum(start: uint) -> f64 {
     let mut local_sum = 0f64;
     for uint::range(start*100000, (start+1)*100000) |num| {
@@ -343,14 +348,17 @@ acts as a reference to the shared data and only this reference is shared and clo
 Here is a small example showing how to use ARCs. We wish to run concurrently several computations on
 a single large vector of floats. Each task needs the full vector to perform its duty.
 ~~~
+# use std::vec;
+# use std::uint;
+# use std::rand;
 use extra::arc::ARC;
 
 fn pnorm(nums: &~[float], p: uint) -> float {
     (vec::foldl(0.0, *nums, |a,b| a+(*b).pow(p as float) )).pow(1f / (p as float))
 }
 
 fn main() {
-    let numbers=vec::from_fn(1000000, |_| rand::random::<float>());
+    let numbers = vec::from_fn(1000000, |_| rand::random::<float>());
     println(fmt!("Inf-norm = %?",  numbers.max()));
 
     let numbers_arc = ARC(numbers);
@@ -373,12 +381,16 @@ at the power given as argument and takes the inverse power of this value). The A
 created by the line
 ~~~
 # use extra::arc::ARC;
-# let numbers=vec::from_fn(1000000, |_| rand::random::<float>());
+# use std::vec;
+# use std::rand;
+# let numbers = vec::from_fn(1000000, |_| rand::random::<float>());
 let numbers_arc=ARC(numbers);
 ~~~
 and a clone of it is sent to each task
 ~~~
 # use extra::arc::ARC;
+# use std::vec;
+# use std::rand;
 # let numbers=vec::from_fn(1000000, |_| rand::random::<float>());
 # let numbers_arc = ARC(numbers);
 # let (port, chan)  = stream();
@@ -389,6 +401,8 @@ copying only the wrapper and not its contents.
 Each task recovers the underlying data by
 ~~~
 # use extra::arc::ARC;
+# use std::vec;
+# use std::rand;
 # let numbers=vec::from_fn(1000000, |_| rand::random::<float>());
 # let numbers_arc=ARC(numbers);
 # let (port, chan)  = stream();
@@ -416,6 +430,7 @@ of all tasks are intertwined: if one fails, so do all the others.
 
 ~~~
 # use std::task::spawn;
+# use std::task;
 # fn do_some_work() { loop { task::yield() } }
 # do task::try {
 // Create a child task that fails
@@ -437,6 +452,7 @@ field (representing a successful result) or an `Err` result (representing
 termination with an error).
 
 ~~~
+# use std::task;
 # fn some_condition() -> bool { false }
 # fn calculate_result() -> int { 0 }
 let result: Result<int, ()> = do task::try {
@@ -479,6 +495,7 @@ By default, task failure is _bidirectionally linked_, which means that if
 either task fails, it kills the other one.
 
 ~~~
+# use std::task;
 # fn sleep_forever() { loop { task::yield() } }
 # do task::try {
 do spawn {
@@ -501,6 +518,7 @@ before returning. Hence:
 ~~~
 # use std::comm::{stream, Chan, Port};
 # use std::task::{spawn, try};
+# use std::task;
 # fn sleep_forever() { loop { task::yield() } }
 # do task::try {
 let (receiver, sender): (Port<int>, Chan<int>) = stream();
@@ -528,6 +546,7 @@ Supervised task failure propagates across multiple generations even if
 an intermediate generation has already exited:
 
 ~~~
+# use std::task;
 # fn sleep_forever() { loop { task::yield() } }
 # fn wait_for_a_while() { for 1000.times { task::yield() } }
 # do task::try::<int> {
@@ -546,6 +565,7 @@ Finally, tasks can be configured to not propagate failure to each
 other at all, using `task::spawn_unlinked` for _isolated failure_.
 
 ~~~
+# use std::task;
 # fn random() -> uint { 100 }
 # fn sleep_for(i: uint) { for i.times { task::yield() } }
 # do task::try::<()> {
@@ -574,6 +594,7 @@ Here is the function that implements the child task:
 
 ~~~~
 # use extra::comm::DuplexStream;
+# use std::uint;
 fn stringifier(channel: &DuplexStream<~str, uint>) {
     let mut value: uint;
     loop {
@@ -596,6 +617,7 @@ Here is the code for the parent task:
 
 ~~~~
 # use std::task::spawn;
+# use std::uint;
 # use extra::comm::DuplexStream;
 # fn stringifier(channel: &DuplexStream<~str, uint>) {
 #     let mut value: uint;

doc/tutorial.md

@@ -502,6 +502,7 @@ types.
 > items.
 
 ~~~~
+# use std::float;
 fn angle(vector: (float, float)) -> float {
     let pi = float::consts::pi;
     match vector {
@@ -556,6 +557,7 @@ while cake_amount > 0 {
 `loop` denotes an infinite loop, and is the preferred way of writing `while true`:
 
 ~~~~
+# use std::int;
 let mut x = 5;
 loop {
     x += x - 3;
@@ -699,6 +701,7 @@ get at their contents. All variant constructors can be used as
 patterns, as in this definition of `area`:
 
 ~~~~
+# use std::float;
 # struct Point {x: float, y: float}
 # enum Shape { Circle(Point, float), Rectangle(Point, Point) }
 fn area(sh: Shape) -> float {
@@ -1829,6 +1832,7 @@ vector consisting of the result of applying `function` to each element
 of `vector`:
 
 ~~~~
+# use std::vec;
 fn map<T, U>(vector: &[T], function: &fn(v: &T) -> U) -> ~[U] {
     let mut accumulator = ~[];
     for vec::each(vector) |element| {
@@ -2026,6 +2030,7 @@ themselves contain type parameters. A trait for generalized sequence
 types might look like the following:
 
 ~~~~
+# use std::vec;
 trait Seq<T> {
     fn len(&self) -> uint;
     fn iter(&self, b: &fn(v: &T));

src/compiletest/compiletest.rc

@@ -16,13 +16,13 @@
 #[no_std];
 
 extern mod core(name = "std", vers = "0.7-pre");
-extern mod std(name = "extra", vers = "0.7-pre");
+extern mod extra(name = "extra", vers = "0.7-pre");
 
 use core::prelude::*;
 use core::*;
 
-use std::getopts;
-use std::test;
+use extra::getopts;
+use extra::test;
 
 use core::result::{Ok, Err};
 
@@ -42,6 +42,13 @@ pub mod runtest;
 pub mod common;
 pub mod errors;
 
+mod std {
+    pub use core::cmp;
+    pub use core::str;
+    pub use core::sys;
+    pub use core::unstable;
+}
+
 pub fn main() {
     let args = os::args();
     let config = parse_config(args);

src/compiletest/errors.rs

@@ -10,6 +10,9 @@
 
 use core::prelude::*;
 
+use core::io;
+use core::str;
+
 pub struct ExpectedError { line: uint, kind: ~str, msg: ~str }
 
 // Load any test directives embedded in the file

src/compiletest/header.rs

@@ -10,8 +10,12 @@
 
 use core::prelude::*;
 
-use common;
 use common::config;
+use common;
+
+use core::io;
+use core::os;
+use core::str;
 
 pub struct TestProps {
     // Lines that should be expected, in order, on standard out

src/compiletest/procsrv.rs

@@ -10,7 +10,13 @@
 
 use core::prelude::*;
 
+use core::comm;
+use core::io;
+use core::libc::c_int;
+use core::os;
 use core::run;
+use core::str;
+use core::task;
 
 #[cfg(target_os = "win32")]
 fn target_env(lib_path: &str, prog: &str) -> ~[(~str,~str)] {

src/compiletest/runtest.rs

@@ -22,6 +22,12 @@ use procsrv;
 use util;
 use util::logv;
 
+use core::io;
+use core::os;
+use core::str;
+use core::uint;
+use core::vec;
+
 pub fn run(config: config, testfile: ~str) {
     if config.verbose {
         // We're going to be dumping a lot of info. Start on a new line.

src/compiletest/util.rs

@@ -12,6 +12,7 @@ use core::prelude::*;
 
 use common::config;
 
+use core::io;
 use core::os::getenv;
 
 pub fn make_new_path(path: &str) -> ~str {