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Contract variables can be declared in the `requires` clause and can be referenced both in `requires` and `ensures`, subject to usual borrow checking rules. This allows any setup common to both the `requires` and `ensures` clauses to only be done once.
18 lines
327 B
Rust
18 lines
327 B
Rust
//@ run-pass
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//@ compile-flags: -Zcontract-checks=yes
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#![feature(contracts_internals)]
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struct Outer { outer: std::cell::Cell<i32> }
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fn outer(x: Outer)
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contract_requires { x.outer.get() > 0 }
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{
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let inner_closure = || { };
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x.outer.set(0);
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inner_closure();
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}
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fn main() {
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outer(Outer { outer: 1.into() });
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}
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