mirror of https://github.com/rust-lang/rust
49 lines
1.4 KiB
Rust
49 lines
1.4 KiB
Rust
//@ run-pass
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use std::panic::Location;
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extern "Rust" {
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#[track_caller]
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fn rust_track_caller_ffi_test_tracked() -> &'static Location<'static>;
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fn rust_track_caller_ffi_test_untracked() -> &'static Location<'static>;
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}
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fn rust_track_caller_ffi_test_nested_tracked() -> &'static Location<'static> {
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unsafe { rust_track_caller_ffi_test_tracked() }
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}
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mod provides {
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use std::panic::Location;
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#[track_caller] // UB if we did not have this!
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#[no_mangle]
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fn rust_track_caller_ffi_test_tracked() -> &'static Location<'static> {
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Location::caller()
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}
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#[no_mangle]
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fn rust_track_caller_ffi_test_untracked() -> &'static Location<'static> {
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Location::caller()
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}
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}
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fn main() {
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let location = Location::caller();
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assert_eq!(location.file(), file!());
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assert_eq!(location.line(), 29);
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assert_eq!(location.column(), 20);
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let tracked = unsafe { rust_track_caller_ffi_test_tracked() };
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assert_eq!(tracked.file(), file!());
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assert_eq!(tracked.line(), 34);
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assert_eq!(tracked.column(), 28);
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let untracked = unsafe { rust_track_caller_ffi_test_untracked() };
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assert_eq!(untracked.file(), file!());
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assert_eq!(untracked.line(), 24);
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assert_eq!(untracked.column(), 9);
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let contained = rust_track_caller_ffi_test_nested_tracked();
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assert_eq!(contained.file(), file!());
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assert_eq!(contained.line(), 12);
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assert_eq!(contained.column(), 14);
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}
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