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