rust/tests/run/closure.rs
Antoni Boucher e3deac5c71 Fix tests
2023-08-15 11:11:57 -04:00

236 lines
4.5 KiB
Rust

// Compiler:
//
// Run-time:
// status: 0
// stdout: Arg: 1
// Argument: 1
// String arg: 1
// Int argument: 2
// Both args: 11
#![feature(arbitrary_self_types, auto_traits, lang_items, no_core, start, intrinsics,
unboxed_closures)]
#![allow(internal_features)]
#![no_std]
#![no_core]
/*
* Core
*/
// Because we don't have core yet.
#[lang = "sized"]
pub trait Sized {}
#[lang = "copy"]
trait Copy {
}
impl Copy for isize {}
impl Copy for usize {}
impl Copy for i32 {}
impl Copy for u32 {}
impl Copy for u8 {}
impl Copy for i8 {}
#[lang = "receiver"]
trait Receiver {
}
#[lang = "freeze"]
pub(crate) unsafe auto trait Freeze {}
mod libc {
#[link(name = "c")]
extern "C" {
pub fn puts(s: *const u8) -> i32;
pub fn printf(format: *const i8, ...) -> i32;
}
}
#[lang = "index"]
pub trait Index<Idx: ?Sized> {
type Output: ?Sized;
fn index(&self, index: Idx) -> &Self::Output;
}
impl<T> Index<usize> for [T; 3] {
type Output = T;
fn index(&self, index: usize) -> &Self::Output {
&self[index]
}
}
impl<T> Index<usize> for [T] {
type Output = T;
fn index(&self, index: usize) -> &Self::Output {
&self[index]
}
}
#[lang = "drop_in_place"]
#[allow(unconditional_recursion)]
pub unsafe fn drop_in_place<T: ?Sized>(to_drop: *mut T) {
// Code here does not matter - this is replaced by the
// real drop glue by the compiler.
drop_in_place(to_drop);
}
#[lang = "panic_location"]
struct PanicLocation {
file: &'static str,
line: u32,
column: u32,
}
#[lang = "panic_bounds_check"]
#[track_caller]
#[no_mangle]
fn panic_bounds_check(index: usize, len: usize) -> ! {
unsafe {
libc::printf("index out of bounds: the len is %d but the index is %d\n\0" as *const str as *const i8, len, index);
intrinsics::abort();
}
}
mod intrinsics {
extern "rust-intrinsic" {
#[rustc_safe_intrinsic]
pub fn abort() -> !;
}
}
#[lang = "tuple_trait"]
pub trait Tuple {}
#[lang = "unsize"]
pub trait Unsize<T: ?Sized> {}
#[lang = "coerce_unsized"]
pub trait CoerceUnsized<T> {}
impl<'a, 'b: 'a, T: ?Sized + Unsize<U>, U: ?Sized> CoerceUnsized<&'a U> for &'b T {}
impl<'a, T: ?Sized + Unsize<U>, U: ?Sized> CoerceUnsized<&'a mut U> for &'a mut T {}
impl<T: ?Sized + Unsize<U>, U: ?Sized> CoerceUnsized<*const U> for *const T {}
impl<T: ?Sized + Unsize<U>, U: ?Sized> CoerceUnsized<*mut U> for *mut T {}
#[lang = "fn_once"]
#[rustc_paren_sugar]
pub trait FnOnce<Args: Tuple> {
#[lang = "fn_once_output"]
type Output;
extern "rust-call" fn call_once(self, args: Args) -> Self::Output;
}
#[lang = "fn_mut"]
#[rustc_paren_sugar]
pub trait FnMut<Args: Tuple>: FnOnce<Args> {
extern "rust-call" fn call_mut(&mut self, args: Args) -> Self::Output;
}
#[lang = "add"]
trait Add<RHS = Self> {
type Output;
fn add(self, rhs: RHS) -> Self::Output;
}
impl Add for u8 {
type Output = Self;
fn add(self, rhs: Self) -> Self {
self + rhs
}
}
impl Add for i8 {
type Output = Self;
fn add(self, rhs: Self) -> Self {
self + rhs
}
}
impl Add for i32 {
type Output = Self;
fn add(self, rhs: Self) -> Self {
self + rhs
}
}
impl Add for usize {
type Output = Self;
fn add(self, rhs: Self) -> Self {
self + rhs
}
}
impl Add for isize {
type Output = Self;
fn add(self, rhs: Self) -> Self {
self + rhs
}
}
#[lang = "panic"]
#[track_caller]
#[no_mangle]
pub fn panic(_msg: &'static str) -> ! {
unsafe {
libc::puts("Panicking\0" as *const str as *const u8);
intrinsics::abort();
}
}
/*
* Code
*/
#[start]
fn main(mut argc: isize, _argv: *const *const u8) -> isize {
let string = "Arg: %d\n\0";
let mut closure = || {
unsafe {
libc::printf(string as *const str as *const i8, argc);
}
};
closure();
let mut closure = || {
unsafe {
libc::printf("Argument: %d\n\0" as *const str as *const i8, argc);
}
};
closure();
let mut closure = |string| {
unsafe {
libc::printf(string as *const str as *const i8, argc);
}
};
closure("String arg: %d\n\0");
let mut closure = |arg: isize| {
unsafe {
libc::printf("Int argument: %d\n\0" as *const str as *const i8, arg);
}
};
closure(argc + 1);
let mut closure = |string, arg: isize| {
unsafe {
libc::printf(string as *const str as *const i8, arg);
}
};
closure("Both args: %d\n\0", argc + 10);
0
}