<commit_before>// Copyright 2012-2014 The Rust Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution and at
// http://rust-lang.org/COPYRIGHT.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <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.

//! A unique pointer type.

#![stable]

use core::any::Any;
use core::clone::Clone;
use core::cmp::{PartialEq, PartialOrd, Eq, Ord, Ordering};
use core::default::Default;
use core::fmt;
use core::hash::{self, Hash};
use core::marker::Sized;
use core::mem;
use core::option::Option;
use core::ptr::Unique;
use core::raw::TraitObject;
use core::result::Result;
use core::result::Result::{Ok, Err};
use core::ops::{Deref, DerefMut};

/// A value that represents the global exchange heap. This is the default
/// place that the `box` keyword allocates into when no place is supplied.
///
/// The following two examples are equivalent:
///
/// ```rust
/// use std::boxed::HEAP;
///
/// # struct Bar;
/// # impl Bar { fn new(_a: int) { } }
/// let foo = box(HEAP) Bar::new(2);
/// let foo = box Bar::new(2);
/// ```
#[lang = "exchange_heap"]
#[experimental = "may be renamed; uncertain about custom allocator design"]
pub static HEAP: () = ();

/// A type that represents a uniquely-owned value.
#[lang = "owned_box"]
#[stable]
pub struct Box<T>(Unique<T>);

#[stable]
impl<T: Default> Default for Box<T> {
    #[stable]
    fn default() -> Box<T> { box Default::default() }
}

#[stable]
impl<T> Default for Box<[T]> {
    #[stable]
    fn default() -> Box<[T]> { box [] }
}

#[stable]
impl<T: Clone> Clone for Box<T> {
    /// Returns a copy of the owned box.
    #[inline]
    fn clone(&self) -> Box<T> { box {(**self).clone()} }

    /// Performs copy-assignment from `source` by reusing the existing allocation.
    #[inline]
    fn clone_from(&mut self, source: &Box<T>) {
        (**self).clone_from(&(**source));
    }
}

#[stable]
impl<T: ?Sized + PartialEq> PartialEq for Box<T> {
    #[inline]
    fn eq(&self, other: &Box<T>) -> bool { PartialEq::eq(&**self, &**other) }
    #[inline]
    fn ne(&self, other: &Box<T>) -> bool { PartialEq::ne(&**self, &**other) }
}
#[stable]
impl<T: ?Sized + PartialOrd> PartialOrd for Box<T> {
    #[inline]
    fn partial_cmp(&self, other: &Box<T>) -> Option<Ordering> {
        PartialOrd::partial_cmp(&**self, &**other)
    }
    #[inline]
    fn lt(&self, other: &Box<T>) -> bool { PartialOrd::lt(&**self, &**other) }
    #[inline]
    fn le(&self, other: &Box<T>) -> bool { PartialOrd::le(&**self, &**other) }
    #[inline]
    fn ge(&self, other: &Box<T>) -> bool { PartialOrd::ge(&**self, &**other) }
    #[inline]
    fn gt(&self, other: &Box<T>) -> bool { PartialOrd::gt(&**self, &**other) }
}
#[stable]
impl<T: ?Sized + Ord> Ord for Box<T> {
    #[inline]
    fn cmp(&self, other: &Box<T>) -> Ordering {
        Ord::cmp(&**self, &**other)
    }

#[stable]}
impl<T: ?Sized + Eq> Eq for Box<T> {}

impl<S: hash::Writer, T: ?Sized + Hash<S>> Hash<S> for Box<T> {
    #[inline]
    fn hash(&self, state: &mut S) {
        (**self).hash(state);
    }
}

/// Extension methods for an owning `Any` trait object.
#[unstable = "post-DST and coherence changes, this will not be a trait but \
              rather a direct `impl` on `Box<Any>`"]
pub trait BoxAny {
    /// Returns the boxed value if it is of type `T`, or
    /// `Err(Self)` if it isn't.
    #[stable]
    fn downcast<T: 'static>(self) -> Result<Box<T>, Self>;
}<commit_msg>Fix #[stable] coming before } instead of after<commit_after>// Copyright 2012-2015 The Rust Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution and at
// http://rust-lang.org/COPYRIGHT.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <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.

//! A unique pointer type.

#![stable]

use core::any::Any;
use core::clone::Clone;
use core::cmp::{PartialEq, PartialOrd, Eq, Ord, Ordering};
use core::default::Default;
use core::fmt;
use core::hash::{self, Hash};
use core::marker::Sized;
use core::mem;
use core::option::Option;
use core::ptr::Unique;
use core::raw::TraitObject;
use core::result::Result;
use core::result::Result::{Ok, Err};
use core::ops::{Deref, DerefMut};

/// A value that represents the global exchange heap. This is the default
/// place that the `box` keyword allocates into when no place is supplied.
///
/// The following two examples are equivalent:
///
/// ```rust
/// use std::boxed::HEAP;
///
/// # struct Bar;
/// # impl Bar { fn new(_a: int) { } }
/// let foo = box(HEAP) Bar::new(2);
/// let foo = box Bar::new(2);
/// ```
#[lang = "exchange_heap"]
#[experimental = "may be renamed; uncertain about custom allocator design"]
pub static HEAP: () = ();

/// A type that represents a uniquely-owned value.
#[lang = "owned_box"]
#[stable]
pub struct Box<T>(Unique<T>);

#[stable]
impl<T: Default> Default for Box<T> {
    #[stable]
    fn default() -> Box<T> { box Default::default() }
}

#[stable]
impl<T> Default for Box<[T]> {
    #[stable]
    fn default() -> Box<[T]> { box [] }
}

#[stable]
impl<T: Clone> Clone for Box<T> {
    /// Returns a copy of the owned box.
    #[inline]
    fn clone(&self) -> Box<T> { box {(**self).clone()} }

    /// Performs copy-assignment from `source` by reusing the existing allocation.
    #[inline]
    fn clone_from(&mut self, source: &Box<T>) {
        (**self).clone_from(&(**source));
    }
}

#[stable]
impl<T: ?Sized + PartialEq> PartialEq for Box<T> {
    #[inline]
    fn eq(&self, other: &Box<T>) -> bool { PartialEq::eq(&**self, &**other) }
    #[inline]
    fn ne(&self, other: &Box<T>) -> bool { PartialEq::ne(&**self, &**other) }
}
#[stable]
impl<T: ?Sized + PartialOrd> PartialOrd for Box<T> {
    #[inline]
    fn partial_cmp(&self, other: &Box<T>) -> Option<Ordering> {
        PartialOrd::partial_cmp(&**self, &**other)
    }
    #[inline]
    fn lt(&self, other: &Box<T>) -> bool { PartialOrd::lt(&**self, &**other) }
    #[inline]
    fn le(&self, other: &Box<T>) -> bool { PartialOrd::le(&**self, &**other) }
    #[inline]
    fn ge(&self, other: &Box<T>) -> bool { PartialOrd::ge(&**self, &**other) }
    #[inline]
    fn gt(&self, other: &Box<T>) -> bool { PartialOrd::gt(&**self, &**other) }
}
#[stable]
impl<T: ?Sized + Ord> Ord for Box<T> {
    #[inline]
    fn cmp(&self, other: &Box<T>) -> Ordering {
        Ord::cmp(&**self, &**other)
    }
}
#[stable]
impl<T: ?Sized + Eq> Eq for Box<T> {}

impl<S: hash::Writer, T: ?Sized + Hash<S>> Hash<S> for Box<T> {
    #[inline]
    fn hash(&self, state: &mut S) {
        (**self).hash(state);
    }
}

/// Extension methods for an owning `Any` trait object.
#[unstable = "post-DST and coherence changes, this will not be a trait but \
              rather a direct `impl` on `Box<Any>`"]
pub trait BoxAny {
    /// Returns the boxed value if it is of type `T`, or
    /// `Err(Self)` if it isn't.
    #[stable]
    fn downcast<T: 'static>(self) -> Result<Box<T>, Self>;
}
{'fraction_non_alphanumeric': 0.20089588706393377, 'fraction_numerical': 0.0038007329985068547, 'mean_word_length': 3.460048426150121, 'pattern_counts': {'":': 0, '<': 81, '<?xml version=': 0, '>': 105, 'https://': 0, 'lorem ipsum': 0, 'www.': 2, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 2, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
{'dir': 'git-commits-cleaned', 'id': '7281718', 'n_tokens_mistral': 2561, 'n_tokens_neox': 2574, 'n_words': 774}