mirror of
https://github.com/rust-lang/rust.git
synced 2024-11-24 07:44:10 +00:00
65 lines
1.7 KiB
Rust
65 lines
1.7 KiB
Rust
//@ run-pass
|
|
//! Test that users are able to use retrieve internal constructs from stable ones to help with
|
|
//! the migration.
|
|
|
|
//@ ignore-stage1
|
|
//@ ignore-cross-compile
|
|
//@ ignore-remote
|
|
//@ ignore-windows-gnu mingw has troubles with linking https://github.com/rust-lang/rust/pull/116837
|
|
//@ edition: 2021
|
|
|
|
#![feature(rustc_private)]
|
|
#![feature(assert_matches)]
|
|
#![feature(control_flow_enum)]
|
|
|
|
#[macro_use]
|
|
extern crate rustc_smir;
|
|
extern crate rustc_driver;
|
|
extern crate rustc_interface;
|
|
extern crate rustc_middle;
|
|
extern crate stable_mir;
|
|
|
|
use rustc_middle::ty::TyCtxt;
|
|
use rustc_smir::rustc_internal;
|
|
use std::io::Write;
|
|
use std::ops::ControlFlow;
|
|
|
|
const CRATE_NAME: &str = "input";
|
|
|
|
fn test_translation(tcx: TyCtxt<'_>) -> ControlFlow<()> {
|
|
let main_fn = stable_mir::entry_fn().unwrap();
|
|
let body = main_fn.body();
|
|
let orig_ty = body.locals()[0].ty;
|
|
let rustc_ty = rustc_internal::internal(tcx, &orig_ty);
|
|
assert!(rustc_ty.is_unit());
|
|
ControlFlow::Continue(())
|
|
}
|
|
|
|
/// This test will generate and analyze a dummy crate using the stable mir.
|
|
/// For that, it will first write the dummy crate into a file.
|
|
/// Then it will create a `StableMir` using custom arguments and then
|
|
/// it will run the compiler.
|
|
fn main() {
|
|
let path = "internal_input.rs";
|
|
generate_input(&path).unwrap();
|
|
let args = vec![
|
|
"rustc".to_string(),
|
|
"--crate-name".to_string(),
|
|
CRATE_NAME.to_string(),
|
|
path.to_string(),
|
|
];
|
|
run_with_tcx!(args, test_translation).unwrap();
|
|
}
|
|
|
|
fn generate_input(path: &str) -> std::io::Result<()> {
|
|
let mut file = std::fs::File::create(path)?;
|
|
write!(
|
|
file,
|
|
r#"
|
|
pub fn main() {{
|
|
}}
|
|
"#
|
|
)?;
|
|
Ok(())
|
|
}
|