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ddbf54b67d
This has now been approved as a language feature and no longer needs a `rustc_` prefix. Also change the `contracts` feature to be marked as incomplete and `contracts_internals` as internal.
37 lines
1.2 KiB
Rust
37 lines
1.2 KiB
Rust
//@ revisions: default unchk_pass chk_pass chk_fail_ensures chk_fail_requires
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//
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//@ [default] run-pass
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//@ [unchk_pass] run-pass
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//@ [chk_pass] run-pass
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//@ [chk_fail_requires] run-fail
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//@ [chk_fail_ensures] run-fail
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//
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//@ [unchk_pass] compile-flags: -Zcontract-checks=no
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//@ [chk_pass] compile-flags: -Zcontract-checks=yes
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//@ [chk_fail_requires] compile-flags: -Zcontract-checks=yes
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//@ [chk_fail_ensures] compile-flags: -Zcontract-checks=yes
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#![feature(cfg_contract_checks, contracts_internals, core_intrinsics)]
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fn main() {
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#[cfg(any(default, unchk_pass))] // default: disabled
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assert_eq!(core::intrinsics::contract_checks(), false);
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#[cfg(chk_pass)] // explicitly enabled
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assert_eq!(core::intrinsics::contract_checks(), true);
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// always pass
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core::intrinsics::contract_check_requires(|| true);
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// fail if enabled
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#[cfg(any(default, unchk_pass, chk_fail_requires))]
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core::intrinsics::contract_check_requires(|| false);
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let doubles_to_two = { let old = 2; move |ret| ret + ret == old };
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// Always pass
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core::intrinsics::contract_check_ensures(&1, doubles_to_two);
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// Fail if enabled
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#[cfg(any(default, unchk_pass, chk_fail_ensures))]
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core::intrinsics::contract_check_ensures(&2, doubles_to_two);
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}
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