rust/tests/ui/sanitizer/cfi/closures.rs
Ramon de C Valle 66c93ac8ba CFI: Move CFI ui tests to cfi directory
Moves the CFI ui tests to the cfi directory and removes the cfi prefix
from tests file names similarly to how the cfi codegen tests are
organized.
2024-08-12 14:59:50 -07:00

91 lines
1.8 KiB
Rust

// Check various forms of dynamic closure calls
//@ revisions: cfi kcfi
// FIXME(#122848) Remove only-linux once OSX CFI binaries work
//@ only-linux
//@ [cfi] needs-sanitizer-cfi
//@ [kcfi] needs-sanitizer-kcfi
//@ compile-flags: -C target-feature=-crt-static
//@ [cfi] compile-flags: -C codegen-units=1 -C lto -C prefer-dynamic=off -C opt-level=0
//@ [cfi] compile-flags: -Z sanitizer=cfi
//@ [kcfi] compile-flags: -Z sanitizer=kcfi
//@ [kcfi] compile-flags: -C panic=abort -Z panic-abort-tests -C prefer-dynamic=off
//@ compile-flags: --test
//@ run-pass
#![feature(fn_traits)]
#![feature(unboxed_closures)]
fn foo<'a, T>() -> Box<dyn Fn(&'a T) -> &'a T> {
Box::new(|x| x)
}
#[test]
fn dyn_fn_with_params() {
let x = 3;
let f = foo();
f(&x);
// FIXME remove once drops are working.
std::mem::forget(f);
}
#[test]
fn call_fn_trait() {
let f: &(dyn Fn()) = &(|| {}) as _;
f.call(());
}
#[test]
fn fn_ptr_cast() {
let f: &fn() = &((|| ()) as _);
f();
}
fn use_fnmut<F: FnMut()>(mut f: F) {
f()
}
#[test]
fn fn_to_fnmut() {
let f: &(dyn Fn()) = &(|| {}) as _;
use_fnmut(f);
}
fn hrtb_helper(f: &dyn for<'a> Fn(&'a usize)) {
f(&10)
}
#[test]
fn hrtb_fn() {
hrtb_helper((&|x: &usize| println!("{}", *x)) as _)
}
#[test]
fn fnonce() {
let f: Box<dyn FnOnce()> = Box::new(|| {}) as _;
f();
}
fn use_closure<C>(call: extern "rust-call" fn(&C, ()) -> i32, f: &C) -> i32 {
call(f, ())
}
#[test]
fn closure_addr_taken() {
let x = 3i32;
let f = || x;
let call = Fn::<()>::call;
use_closure(call, &f);
}
fn use_closure_once<C>(call: extern "rust-call" fn(C, ()) -> i32, f: C) -> i32 {
call(f, ())
}
#[test]
fn closure_once_addr_taken() {
let g = || 3;
let call2 = FnOnce::<()>::call_once;
use_closure_once(call2, g);
}