mirror of https://github.com/rust-lang/rust
65 lines
2.1 KiB
Rust
65 lines
2.1 KiB
Rust
//@ run-pass
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//@ needs-unwind
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//@ revisions: default mir-opt
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//@[mir-opt] compile-flags: -Zmir-opt-level=4
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#![allow(unconditional_panic)]
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//! Test that panic locations for `#[track_caller]` functions in std have the correct
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//! location reported.
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use std::cell::RefCell;
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use std::collections::{BTreeMap, HashMap, VecDeque};
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use std::ops::{Index, IndexMut};
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use std::panic::{AssertUnwindSafe, UnwindSafe};
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fn main() {
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// inspect the `PanicInfo` we receive to ensure the right file is the source
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std::panic::set_hook(Box::new(|info| {
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let actual = info.location().unwrap();
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if actual.file() != file!() {
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eprintln!("expected a location in the test file, found {:?}", actual);
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panic!();
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}
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}));
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fn assert_panicked(f: impl FnOnce() + UnwindSafe) {
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std::panic::catch_unwind(f).unwrap_err();
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}
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let nope: Option<()> = None;
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assert_panicked(|| nope.unwrap());
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assert_panicked(|| nope.expect(""));
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let oops: Result<(), ()> = Err(());
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assert_panicked(|| oops.unwrap());
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assert_panicked(|| oops.expect(""));
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let fine: Result<(), ()> = Ok(());
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assert_panicked(|| fine.unwrap_err());
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assert_panicked(|| fine.expect_err(""));
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let mut small = [0]; // the implementation backing str, vec, etc
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assert_panicked(move || { small.index(1); });
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assert_panicked(move || { small[1]; });
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assert_panicked(move || { small.index_mut(1); });
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assert_panicked(move || { small[1] += 1; });
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let sorted: BTreeMap<bool, bool> = Default::default();
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assert_panicked(|| { sorted.index(&false); });
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assert_panicked(|| { sorted[&false]; });
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let unsorted: HashMap<bool, bool> = Default::default();
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assert_panicked(|| { unsorted.index(&false); });
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assert_panicked(|| { unsorted[&false]; });
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let weirdo: VecDeque<()> = Default::default();
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assert_panicked(|| { weirdo.index(1); });
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assert_panicked(|| { weirdo[1]; });
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let refcell: RefCell<()> = Default::default();
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let _conflicting = refcell.borrow_mut();
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assert_panicked(AssertUnwindSafe(|| { refcell.borrow(); }));
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assert_panicked(AssertUnwindSafe(|| { refcell.borrow_mut(); }));
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}
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