mirror of
https://github.com/rust-lang/rust.git
synced 2024-11-23 07:14:28 +00:00
6d4a825714
We implement the trait only for definitions that should have a type. It's possible that I missed a few definitions, but we can add them later if needed.
115 lines
3.3 KiB
Rust
115 lines
3.3 KiB
Rust
//@ run-pass
|
|
//! Test that users are able to use stable mir APIs to retrieve type information from a crate item
|
|
//! definition.
|
|
|
|
//@ 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 stable_mir;
|
|
|
|
use rustc_smir::rustc_internal;
|
|
use stable_mir::ty::{Ty, ForeignItemKind};
|
|
use stable_mir::*;
|
|
use std::io::Write;
|
|
use std::ops::ControlFlow;
|
|
|
|
const CRATE_NAME: &str = "crate_def_ty";
|
|
|
|
/// Test if we can retrieve type information from different definitions.
|
|
fn test_def_tys() -> ControlFlow<()> {
|
|
let items = stable_mir::all_local_items();
|
|
for item in &items {
|
|
// Type from crate items.
|
|
let ty = item.ty();
|
|
match item.name().as_str() {
|
|
"STATIC_STR" => assert!(ty.kind().is_ref()),
|
|
"CONST_U32" => assert!(ty.kind().is_integral()),
|
|
"main" => { check_fn_def(ty) }
|
|
_ => unreachable!("Unexpected item: `{item:?}`")
|
|
}
|
|
}
|
|
|
|
let foreign_items = stable_mir::local_crate().foreign_modules();
|
|
for item in foreign_items[0].module().items() {
|
|
// Type from foreign items.
|
|
let ty = item.ty();
|
|
let item_kind = item.kind();
|
|
let name = item.name();
|
|
match item_kind {
|
|
ForeignItemKind::Fn(fn_def) => {
|
|
assert_eq!(&name, "extern_fn");
|
|
assert_eq!(ty, fn_def.ty());
|
|
check_fn_def(ty)
|
|
}
|
|
ForeignItemKind::Static(def) => {
|
|
assert_eq!(&name, "EXT_STATIC");
|
|
assert_eq!(ty, def.ty());
|
|
assert!(ty.kind().is_integral())
|
|
}
|
|
_ => unreachable!("Unexpected kind: {item_kind:?}")
|
|
};
|
|
}
|
|
|
|
ControlFlow::Continue(())
|
|
}
|
|
|
|
fn check_fn_def(ty: Ty) {
|
|
let kind = ty.kind();
|
|
let (def, args) = kind.fn_def().expect(&format!("Expected function type, but found: {ty}"));
|
|
assert!(def.ty().kind().is_fn());
|
|
assert_eq!(def.ty_with_args(args), ty);
|
|
}
|
|
|
|
/// 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 = "defs_ty_input.rs";
|
|
generate_input(&path).unwrap();
|
|
let args = vec![
|
|
"rustc".to_string(),
|
|
"-Cpanic=abort".to_string(),
|
|
"--crate-name".to_string(),
|
|
CRATE_NAME.to_string(),
|
|
path.to_string(),
|
|
];
|
|
run!(args, test_def_tys).unwrap();
|
|
}
|
|
|
|
fn generate_input(path: &str) -> std::io::Result<()> {
|
|
let mut file = std::fs::File::create(path)?;
|
|
write!(
|
|
file,
|
|
r#"
|
|
// We would like to check intrinsic definition.
|
|
#![feature(core_intrinsics)]
|
|
static STATIC_STR: &str = "foo";
|
|
const CONST_U32: u32 = 0u32;
|
|
|
|
fn main() {{
|
|
let _c = core::char::from_u32(99);
|
|
let _v = Vec::<u8>::new();
|
|
let _i = std::intrinsics::size_of::<u8>();
|
|
}}
|
|
|
|
extern "C" {{
|
|
fn extern_fn(x: i32) -> i32;
|
|
static EXT_STATIC: i32;
|
|
}}
|
|
"#
|
|
)?;
|
|
Ok(())
|
|
}
|