78 lines
27 KiB
Plaintext
78 lines
27 KiB
Plaintext
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!<arch>
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/ 0 0 0 0 8 `
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// 70 `
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scopeguard-455f989eebcb69dc.scopeguard.ed466b6761d37c72-cgu.0.rcgu.o/
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lib.rmeta/ 0 0 0 644 26328 `
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ELF · Xe @ @ GNU À rust
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c #rustc 1.96.0 (ac68faa20 2026-05-25)ÁíàÄTËŸ ÜJîÄ)'ß\¥! -3d1337db07d0b3aeÁ ¤°ð ¾ä-±($²ï=©Ã -7e98a21bfd32b0edÁ‰ OnUnwindÁDÀ6 » use_stdÁœ�6 OnSuccessÁLà7 »žœ°7 defer_on_successÁ„§? »žœô> defer_on_unwindÁ|²B »žœÿA guard_on_successÁ„”[ »žœáZ guard_on_unwindÁ|öb »žœÃb testsÁ,¤n ‚ $™n í À StrategyÁ
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should_runÁ
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¾ deferÁ
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ScopeGuardÁ ¥ — ¤ » dropfnÁ strategyÁ ¥ — ¤
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Ú,±< ü ò… ütE B A scope guard will run a given closure when it goes out of scope,Á üº$ ! even if the code between panics.Á üß$ ! (as long as panic doesn't abort)Á „ ú tˆ # ExamplesÁ — ú ”› ## Hello WorldÁ ® ú ü²@ = This example creates a scope guard with an example function:Á ó ú <÷ ```Á äÿ extern crate scopeguard;Á œ ú d fn f() {Á ü0 - let _guard = scopeguard::guard((), |_| {Á üÞ* ' println!("Hello Scope Exit!");Á \‰ });Á • ú ü™! // rest of the code here.Á » ú ü¿O L // Here, at the end of `_guard`'s scope, the guard's closure is called.Á ü�M J // It is also called if we exit this scope through unwinding instead.Á ,Ý }Á Œã # fn main() {Á lõ
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# f();Á <ƒ # }Á <‹ ø) “ ú |— ## `defer!`Á § ú ü«< 9 Use the `defer` macro to run an operation at scope exit,Á üè? < either regular scope exit or during unwinding from a panic.Á ¨ ú <¬ ø) ü´0 - #[macro_use(defer)] extern crate scopeguard;Á å ú Äé use std::cell::Cell;Á ‚ ú |† fn main() {Á ü–Q N // use a cell to observe drops during and after the scope guard is activeÁ üè( % let drop_counter = Cell::new(0);Á L‘ {Á ü› H E // Create a scope guard using `defer!` for the current scopeÁ ¤ä defer! {Á üù 9 6 drop_counter.set(1 + drop_counter.get());Á l³
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}Á Á
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ú üÅ
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: 7 // Do regular operations here in the meantime.Á € ú ü„ 9 6 // Just before scope exit: it hasn't run yet.Á ü¾ . + assert_eq!(drop_counter.get(), 0);Á í ú üñ K H // The following scope end is where the defer closure is calledÁ L½ }Á üÇ * ' assert_eq!(drop_counter.get(), 1);Á ,ò Ã- <ø ø) €
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