mirror of https://github.com/rust-lang/rust.git
69 lines
1.3 KiB
Rust
69 lines
1.3 KiB
Rust
//@ only-wasm32
|
|
//@ assembly-output: emit-asm
|
|
//@ compile-flags: -C target-feature=+exception-handling
|
|
//@ compile-flags: -C panic=unwind
|
|
//@ compile-flags: -C llvm-args=-wasm-enable-eh
|
|
|
|
#![crate_type = "lib"]
|
|
#![feature(core_intrinsics)]
|
|
|
|
extern "C-unwind" {
|
|
fn may_panic();
|
|
}
|
|
|
|
extern "C" {
|
|
fn log_number(number: usize);
|
|
}
|
|
|
|
struct LogOnDrop;
|
|
|
|
impl Drop for LogOnDrop {
|
|
fn drop(&mut self) {
|
|
unsafe {
|
|
log_number(0);
|
|
}
|
|
}
|
|
}
|
|
|
|
// CHECK-LABEL: test_cleanup:
|
|
#[no_mangle]
|
|
pub fn test_cleanup() {
|
|
let _log_on_drop = LogOnDrop;
|
|
unsafe {
|
|
may_panic();
|
|
}
|
|
|
|
// CHECK-NOT: call
|
|
// CHECK: try
|
|
// CHECK: call may_panic
|
|
// CHECK: catch_all
|
|
// CHECK: rethrow
|
|
// CHECK: end_try
|
|
}
|
|
|
|
// CHECK-LABEL: test_rtry:
|
|
#[no_mangle]
|
|
pub fn test_rtry() {
|
|
unsafe {
|
|
core::intrinsics::catch_unwind(
|
|
|_| {
|
|
may_panic();
|
|
},
|
|
core::ptr::null_mut(),
|
|
|data, exception| {
|
|
log_number(data as usize);
|
|
log_number(exception as usize);
|
|
},
|
|
);
|
|
}
|
|
|
|
// CHECK-NOT: call
|
|
// CHECK: try
|
|
// CHECK: call may_panic
|
|
// CHECK: catch
|
|
// CHECK: call log_number
|
|
// CHECK: call log_number
|
|
// CHECK-NOT: rethrow
|
|
// CHECK: end_try
|
|
}
|