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//- /libcore.rs crate:core
//! Signatures of traits, types and functions from the core lib for use in tests.
pub mod convert {
pub trait From<T> {
fn from(t: T) -> Self;
}
}
pub mod default {
pub trait Default {
fn default() -> Self;
}
}
pub mod iter {
pub use self::traits::{collect::IntoIterator, iterator::Iterator};
mod traits {
pub(crate) mod iterator {
use crate::option::Option;
pub trait Iterator {
type Item;
fn next(&mut self) -> Option<Self::Item>;
fn by_ref(&mut self) -> &mut Self {
self
}
fn take(self, n: usize) -> crate::iter::Take<Self> {
crate::iter::Take { inner: self }
}
}
impl<I: Iterator> Iterator for &mut I {
type Item = I::Item;
fn next(&mut self) -> Option<I::Item> {
(**self).next()
}
}
}
pub(crate) mod collect {
pub trait IntoIterator {
type Item;
}
}
}
pub use self::sources::*;
pub(crate) mod sources {
use super::Iterator;
use crate::option::Option::{self, *};
pub struct Repeat<A> {
element: A,
}
pub fn repeat<T>(elt: T) -> Repeat<T> {
Repeat { element: elt }
}
impl<A> Iterator for Repeat<A> {
type Item = A;
fn next(&mut self) -> Option<A> {
None
}
}
}
pub use self::adapters::*;
pub(crate) mod adapters {
use super::Iterator;
use crate::option::Option::{self, *};
pub struct Take<I> {
pub(crate) inner: I,
}
impl<I> Iterator for Take<I>
where
I: Iterator,
{
type Item = <I as Iterator>::Item;
fn next(&mut self) -> Option<<I as Iterator>::Item> {
None
}
}
}
}
pub mod ops {
#[lang = "fn"]
pub trait Fn<Args>: FnMut<Args> {
extern "rust-call" fn call(&self, args: Args) -> Self::Output;
}
#[lang = "fn_mut"]
pub trait FnMut<Args>: FnOnce<Args> {
extern "rust-call" fn call_mut(&mut self, args: Args) -> Self::Output;
}
#[lang = "fn_once"]
pub trait FnOnce<Args> {
#[lang = "fn_once_output"]
type Output;
extern "rust-call" fn call_once(self, args: Args) -> Self::Output;
}
}
pub mod option {
pub enum Option<T> {
None,
Some(T),
}
}
pub mod prelude {
pub use crate::{
convert::From,
default::Default,
iter::{IntoIterator, Iterator},
ops::{Fn, FnMut, FnOnce},
option::Option::{self, *},
};
}
#[prelude_import]
pub use prelude::*;
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