mirror of https://github.com/rust-lang/rust
112 lines
2.0 KiB
Rust
112 lines
2.0 KiB
Rust
// Compiler:
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//
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// Run-time:
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// status: 0
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// stdout: 10
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// 14
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// 1
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// 12
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// 12
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// 1
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#![feature(auto_traits, lang_items, no_core, start, intrinsics, rustc_attrs)]
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#![allow(internal_features)]
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#![no_std]
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#![no_core]
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/*
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* Core
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*/
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// Because we don't have core yet.
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#[lang = "sized"]
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pub trait Sized {}
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#[lang = "destruct"]
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pub trait Destruct {}
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#[lang = "drop"]
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pub trait Drop {}
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#[lang = "copy"]
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trait Copy {
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}
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impl Copy for isize {}
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#[lang = "receiver"]
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trait Receiver {
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}
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#[lang = "freeze"]
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pub(crate) unsafe auto trait Freeze {}
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mod intrinsics {
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use super::Sized;
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extern "rust-intrinsic" {
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#[rustc_safe_intrinsic]
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pub fn abort() -> !;
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}
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}
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mod libc {
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#[link(name = "c")]
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extern "C" {
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pub fn printf(format: *const i8, ...) -> i32;
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}
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}
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#[lang = "structural_peq"]
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pub trait StructuralPartialEq {}
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#[lang = "drop_in_place"]
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#[allow(unconditional_recursion)]
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pub unsafe fn drop_in_place<T: ?Sized>(to_drop: *mut T) {
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// Code here does not matter - this is replaced by the
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// real drop glue by the compiler.
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drop_in_place(to_drop);
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}
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/*
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* Code
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*/
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struct Test {
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field: isize,
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}
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struct WithRef {
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refe: &'static Test,
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}
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static mut CONSTANT: isize = 10;
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static mut TEST: Test = Test {
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field: 12,
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};
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static mut TEST2: Test = Test {
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field: 14,
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};
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static mut WITH_REF: WithRef = WithRef {
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refe: unsafe { &TEST },
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};
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#[start]
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fn main(mut argc: isize, _argv: *const *const u8) -> isize {
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unsafe {
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libc::printf(b"%ld\n\0" as *const u8 as *const i8, CONSTANT);
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libc::printf(b"%ld\n\0" as *const u8 as *const i8, TEST2.field);
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TEST2.field = argc;
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libc::printf(b"%ld\n\0" as *const u8 as *const i8, TEST2.field);
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libc::printf(b"%ld\n\0" as *const u8 as *const i8, WITH_REF.refe.field);
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WITH_REF.refe = &TEST2;
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libc::printf(b"%ld\n\0" as *const u8 as *const i8, TEST.field);
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libc::printf(b"%ld\n\0" as *const u8 as *const i8, WITH_REF.refe.field);
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}
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0
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}
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