mirror of
https://github.com/rust-lang/rust.git
synced 2025-10-31 04:57:19 +00:00
88ee6e5a6c
The `std` test straightforwardly can't work without file descriptors;
#99417 tracks moving it out of tests/ui.
`issue-13560.rs` requires the target to support dynamic linking.
`extern-mod-syntax` is interesting. The original test was added to check
if `extern mod` could be parsed correctly and used `extern mod std` and
an import:
138dc3048a (diff-73700e1e851b7a37bc92174635dab726124c82e5bfabbbc45b4a3c2e8e14fadd)
At some point `std::json::Object` was moved out of std to an unstable
rustc-only `extras` crate, and rather than just changing the import it
got changed to use the unstable crate. When `extras` was removed, people
assumed the test was meant to also test rustc_private and changed it to
another unstable crate rather than using something in std.
This changes the test to remove the `rustc_private` import, to allow it
to work properly when cross-compiling.
53 lines
1.2 KiB
Rust
53 lines
1.2 KiB
Rust
// run-pass
|
|
// ignore-wasm (needs file descriptors and env variables)
|
|
|
|
use std::env;
|
|
use std::fs::File;
|
|
use std::io::{Read, Write};
|
|
use std::path::PathBuf;
|
|
|
|
#[cfg(unix)]
|
|
fn switch_stdout_to(file: File) {
|
|
use std::os::unix::prelude::*;
|
|
|
|
extern "C" {
|
|
fn dup2(old: i32, new: i32) -> i32;
|
|
}
|
|
|
|
unsafe {
|
|
assert_eq!(dup2(file.as_raw_fd(), 1), 1);
|
|
}
|
|
}
|
|
|
|
#[cfg(windows)]
|
|
fn switch_stdout_to(file: File) {
|
|
use std::os::windows::prelude::*;
|
|
|
|
extern "system" {
|
|
fn SetStdHandle(nStdHandle: u32, handle: *mut u8) -> i32;
|
|
}
|
|
|
|
const STD_OUTPUT_HANDLE: u32 = (-11i32) as u32;
|
|
|
|
unsafe {
|
|
let rc = SetStdHandle(STD_OUTPUT_HANDLE, file.into_raw_handle() as *mut _);
|
|
assert!(rc != 0);
|
|
}
|
|
}
|
|
|
|
fn main() {
|
|
let path = PathBuf::from(env::var_os("RUST_TEST_TMPDIR").unwrap());
|
|
let path = path.join("switch-stdout-output");
|
|
let f = File::create(&path).unwrap();
|
|
|
|
println!("foo");
|
|
std::io::stdout().flush().unwrap();
|
|
switch_stdout_to(f);
|
|
println!("bar");
|
|
std::io::stdout().flush().unwrap();
|
|
|
|
let mut contents = String::new();
|
|
File::open(&path).unwrap().read_to_string(&mut contents).unwrap();
|
|
assert_eq!(contents, "bar\n");
|
|
}
|