84 lines
26 KiB
Plaintext
84 lines
26 KiB
Plaintext
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!<arch>
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lib.rmeta Ïúíþ ˜ %c 8 %c .rmeta __DWARF %c 8 2 `d `d P rust
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’a #rustc 1.93.0 (254b59607 2026-01-19)Á³VOÐêùÿ²?ÑL¼�§Ì± -a7a40eb546f9e2b0Á ë&Gf·Ã ¬ëñq:¤»b -bb76018b1173caf6Á‰ OnUnwindÁDÀ6 ¶<�6 use_stdÁLš6 œ�6 OnSuccessÁLà7 ¶<°7 ¢Lº7 œ°7 defer_on_successÁ„§? ¶<ô> ¢Lþ> œô> defer_on_unwindÁ|²B ¶<ÿA ¢L‰B œÿA guard_on_successÁ„”[ ¶<áZ ¢LëZ œáZ guard_on_unwindÁ|öb ¶<Ãb ¢LÍb œÃb testsÁ,¤n à$™n ³ “ StrategyÁ
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should_runÁ
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Œ,±< ü ò… ¡ = @ p 8¹ lA O 7 https://docs.rs/scopeguard/1/Á üQ ü:8 ütE B A scope guard will run a given closure when it goes out of scope,Á üº$ ! even if the code between panics.Á üß$ ! (as long as panic doesn't abort)Á „ Ë tˆ # ExamplesÁ — Ë ”› ## Hello WorldÁ ® Ë ü²@ = This example creates a scope guard with an example function:Á ó Ë <÷ ```Á äÿ extern crate scopeguard;Á œ Ë d fn f() {Á ü0 - let _guard = scopeguard::guard((), |_| {Á üÞ* ' println!("Hello Scope Exit!");Á \‰ });Á • Ë ü™! // rest of the code here.Á » Ë 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 <‹ ß* “ Ë |— ## `defer!`Á § Ë 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 ¨ Ë <¬ ß* ü´0 - #[macro_use(defer)] extern crate scopeguard;Á å Ë Äé use std::cell::Cell;Á ‚ Ë |† 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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Ë üÅ
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: 7 // Do regular operations here in the meantime.Á € Ë ü„ 9 6 // Just before scope exit: it hasn't run yet.Á ü¾ . + assert_eq!(drop_counter.get(), 0);Á í Ë 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 ž. <ø ß* €
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Ë ì„
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## Scope Guard with ValueÁ ¢
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Ë ü¦
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