mirror of
https://github.com/rust-lang/rust.git
synced 2025-10-02 18:27:37 +00:00
e1d4f2a0c2
And introduce two new directives for ui tests: * `run-crash` * `run-fail-or-crash` Normally a `run-fail` ui test like tests that panic shall not be terminated by a signal like `SIGABRT`. So begin having that as a hard requirement. Some of our current tests do terminate by a signal/crash however. Introduce and use `run-crash` for those tests. Note that Windows crashes are not handled by signals but by certain high bits set on the process exit code. Example exit code for crash on Windows: `0xc000001d`. Because of this, we define "crash" on all platforms as "not exit with success and not exit with a regular failure code in the range 1..=127". Some tests behave differently on different targets: * Targets without unwind support will abort (crash) instead of exit with failure code 101 after panicking. As a special case, allow crashes for `run-fail` tests for such targets. * Different sanitizer implementations handle detected memory problems differently. Some abort (crash) the process while others exit with failure code 1. Introduce and use `run-fail-or-crash` for such tests.
27 lines
846 B
Rust
27 lines
846 B
Rust
//@ run-crash
|
|
//@ compile-flags: -Zcontract-checks=yes
|
|
|
|
#![feature(contracts)]
|
|
//~^ WARN the feature `contracts` is incomplete and may not be safe to use and/or cause compiler crashes [incomplete_features]
|
|
|
|
struct Baz {
|
|
baz: i32
|
|
}
|
|
|
|
#[track_caller]
|
|
#[core::contracts::requires(x.baz > 0)]
|
|
#[core::contracts::ensures({let old = x.baz; move |ret:&Baz| ret.baz == old*2 })]
|
|
// Relevant thing is this: ^^^^^^^^^^^^^^^
|
|
// because we are capturing state that is Copy
|
|
fn doubler(x: Baz) -> Baz {
|
|
Baz { baz: x.baz + 10 }
|
|
}
|
|
|
|
fn main() {
|
|
assert_eq!(doubler(Baz { baz: 10 }).baz, 20);
|
|
assert_eq!(doubler(Baz { baz: 100 }).baz, 200);
|
|
// This is a *run-fail* test because it is still exercising the
|
|
// contract machinery, specifically because this second invocation
|
|
// of `doubler` shows how the code does not meet its contract.
|
|
}
|