{"id":78092,"date":"2024-09-26T15:30:10","date_gmt":"2024-09-26T12:00:10","guid":{"rendered":"https:\/\/nabfollower.com\/blog\/implement-react-v18-from-scratch-using-wasm-and-rust-27-implement-usetransition-10gb\/"},"modified":"2024-09-26T15:30:10","modified_gmt":"2024-09-26T12:00:10","slug":"implement-react-v18-from-scratch-using-wasm-and-rust-27-implement-usetransition-10gb","status":"publish","type":"post","link":"https:\/\/nabfollower.com\/blog\/implement-react-v18-from-scratch-using-wasm-and-rust-27-implement-usetransition-10gb\/","title":{"rendered":"\u067e\u06cc\u0627\u062f\u0647 \u0633\u0627\u0632\u06cc React v18 \u0627\u0632 \u0627\u0628\u062a\u062f\u0627 \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 WASM \u0648 Rust – [27] \u067e\u06cc\u0627\u062f\u0647 \u0633\u0627\u0632\u06cc useTransition"},"content":{"rendered":"
\n

\u0628\u0631 \u0627\u0633\u0627\u0633 big-react\u060c \u0645\u0646 \u0642\u0635\u062f \u062f\u0627\u0631\u0645 \u0648\u06cc\u0698\u06af\u06cc \u0647\u0627\u06cc \u0647\u0633\u062a\u0647 React v18 \u0631\u0627 \u0627\u0632 \u0627\u0628\u062a\u062f\u0627 \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 WASM \u0648 Rust \u067e\u06cc\u0627\u062f\u0647 \u0633\u0627\u0632\u06cc \u06a9\u0646\u0645.<\/p>\n

\u0645\u062e\u0632\u0646 \u06a9\u062f\uff1ahttps:\/\/github.com\/ParadeTo\/big-react-wasm<\/p>\n

\u0628\u0631\u0686\u0633\u0628 \u0645\u0631\u0628\u0648\u0637 \u0628\u0647 \u0627\u06cc\u0646 \u0645\u0642\u0627\u0644\u0647\uff1av27<\/p>\n<\/blockquote>\n

useTransition<\/code> \u06cc\u06a9 \u0647\u0648\u06a9 \u062c\u062f\u06cc\u062f \u0627\u0633\u062a \u06a9\u0647 \u062f\u0631 React \u0645\u0639\u0631\u0641\u06cc \u0634\u062f\u0647 \u0627\u0633\u062a \u06a9\u0647 \u0628\u0647 \u0634\u0645\u0627 \u0627\u0645\u06a9\u0627\u0646 \u0645\u06cc \u062f\u0647\u062f \u0628\u062f\u0648\u0646 \u0645\u0633\u062f\u0648\u062f \u06a9\u0631\u062f\u0646 \u0631\u0627\u0628\u0637 \u06a9\u0627\u0631\u0628\u0631\u06cc\u060c \u0648\u0636\u0639\u06cc\u062a \u0631\u0627 \u0628\u0647 \u0631\u0648\u0632 \u06a9\u0646\u06cc\u062f. \u0648\u0628 \u0633\u0627\u06cc\u062a \u0631\u0633\u0645\u06cc React \u0645\u062b\u0627\u0644\u06cc \u0627\u0631\u0627\u0626\u0647 \u0645\u06cc \u062f\u0647\u062f \u06a9\u0647 \u062a\u0641\u0627\u0648\u062a \u0642\u0628\u0644 \u0648 \u0628\u0639\u062f \u0627\u0632 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0631\u0627 \u0646\u0634\u0627\u0646 \u0645\u06cc \u062f\u0647\u062f useTransition<\/code>. \u0647\u0645\u0686\u0646\u06cc\u0646 \u0645\u0642\u0627\u0644\u0647 \u0627\u06cc \u0648\u062c\u0648\u062f \u062f\u0627\u0631\u062f \u06a9\u0647 \u0627\u0635\u0648\u0644 \u0627\u0633\u0627\u0633\u06cc \u0631\u0627 \u062a\u062d\u0644\u06cc\u0644 \u0645\u06cc \u06a9\u0646\u062f. \u062d\u0627\u0644\u0627 \u0628\u06cc\u0627\u06cc\u06cc\u062f \u0622\u0646 \u0631\u0627 \u067e\u06cc\u0627\u062f\u0647 \u0633\u0627\u0632\u06cc \u06a9\u0646\u06cc\u0645. \u062c\u0632\u0626\u06cc\u0627\u062a \u062a\u063a\u06cc\u06cc\u0631\u0627\u062a \u0631\u0627 \u0645\u06cc \u062a\u0648\u0627\u0646\u06cc\u062f \u062f\u0631 \u0627\u06cc\u0646 \u0644\u06cc\u0646\u06a9 \u0645\u0634\u0627\u0647\u062f\u0647 \u06a9\u0646\u06cc\u062f.<\/p>\n

\u0627\u0628\u062a\u062f\u0627 \u0645\u0631\u0627\u062d\u0644 \u0627\u0641\u0632\u0648\u062f\u0646 \u0647\u0648\u06a9 \u062c\u062f\u06cc\u062f \u0631\u0627 \u062f\u0646\u0628\u0627\u0644 \u06a9\u0631\u062f\u0647 \u0648 \u06a9\u062f \u0645\u0631\u0628\u0648\u0637\u0647 \u0631\u0627 \u0627\u0636\u0627\u0641\u0647 \u0645\u06cc \u06a9\u0646\u06cc\u0645. \u062f\u0631 \u0646\u0647\u0627\u06cc\u062a\u060c \u0645\u0627 \u0628\u0647 \u0622\u0646 \u062e\u0648\u0627\u0647\u06cc\u0645 \u0631\u0633\u06cc\u062f fiber_hooks.rs<\/code>:\n<\/p>\n

\n
fn<\/span> mount_transition<\/span>()<\/span> -><\/span> Vec<\/span><<\/span>JsValue<\/span>><\/span> {<\/span>\n    let<\/span> result<\/span> =<\/span> mount_state<\/span>(<\/span>&<\/span>JsValue<\/span>::<\/span>from<\/span>(<\/span>false<\/span>))<\/span>.unwrap<\/span>();<\/span>\n    let<\/span> is_pending<\/span> =<\/span> result<\/span>[<\/span>0<\/span>]<\/span>.as_bool<\/span>()<\/span>.unwrap<\/span>();<\/span>\n    let<\/span> set_pending<\/span> =<\/span> result<\/span>[<\/span>1<\/span>]<\/span>.clone<\/span>()<\/span>.dyn_into<\/span>::<\/span><<\/span>Function<\/span>><\/span>()<\/span>.unwrap<\/span>();<\/span>\n    let<\/span> hook<\/span> =<\/span> mount_work_in_progress_hook<\/span>();<\/span>\n    let<\/span> set_pending_cloned<\/span> =<\/span> set_pending<\/span>.clone<\/span>();<\/span>\n    let<\/span> closure<\/span> =<\/span> Closure<\/span>::<\/span>wrap<\/span>(<\/span>Box<\/span>::<\/span>new<\/span>(<\/span>move<\/span> |<\/span>callback<\/span>:<\/span> Function<\/span>|<\/span> {<\/span>\n        start_transition<\/span>(<\/span>set_pending_cloned<\/span>.clone<\/span>(),<\/span> callback<\/span>);<\/span>\n    })<\/span> as<\/span> Box<\/span><<\/span>dyn<\/span> Fn<\/span>(<\/span>Function<\/span>)<\/span>><\/span>);<\/span>\n    let<\/span> start<\/span>:<\/span> Function<\/span> =<\/span> closure<\/span>.as_ref<\/span>()<\/span>.unchecked_ref<\/span>::<\/span><<\/span>Function<\/span>><\/span>()<\/span>.clone<\/span>();<\/span>\n    closure<\/span>.forget<\/span>();<\/span>\n    hook<\/span>.as_ref<\/span>()<\/span>.unwrap<\/span>()<\/span>.clone<\/span>()<\/span>.borrow_mut<\/span>()<\/span>.memoized_state<\/span> =<\/span>\n        Some<\/span>(<\/span>MemoizedState<\/span>::<\/span>MemoizedJsValue<\/span>(<\/span>start<\/span>.clone<\/span>()<\/span>.into<\/span>()));<\/span>\n    vec!<\/span>[<\/span>JsValue<\/span>::<\/span>from_bool<\/span>(<\/span>is_pending<\/span>),<\/span> start<\/span>.into<\/span>()]<\/span>\n}<\/span>\n<\/code><\/pre>\n<\/div>\n
\u062f\u0631 \u0637\u0648\u0644 mount_transition<\/code> \u0641\u0631\u0622\u06cc\u0646\u062f\u060c \u0633\u0627\u062e\u062a\u0627\u0631 \u062f\u0627\u062f\u0647 \u0632\u06cc\u0631 \u062a\u0634\u06a9\u06cc\u0644 \u0645\u06cc \u0634\u0648\u062f:<\/p>\n
<\/p>\n
\u067e\u0633 \u06a9\u06cc update_transition<\/code> \u0646\u0627\u0645\u06cc\u062f\u0647 \u0645\u06cc \u0634\u0648\u062f\u060c \u0645\u06cc \u062a\u0648\u0627\u0646\u06cc\u0645 \u0645\u0642\u0627\u062f\u06cc\u0631 \u0631\u0627 \u0627\u0632 \u0647\u0648\u06a9 \u0647\u0627 \u0628\u0627\u0632\u06cc\u0627\u0628\u06cc \u06a9\u0646\u06cc\u0645:\n<\/p>\n
\n
fn<\/span> update_transition<\/span>()<\/span> -><\/span> Vec<\/span><<\/span>JsValue<\/span>><\/span> {<\/span>\n    let<\/span> result<\/span> =<\/span> update_state<\/span>(<\/span>&<\/span>JsValue<\/span>::<\/span>undefined<\/span>())<\/span>.unwrap<\/span>();<\/span>\n    let<\/span> is_pending<\/span> =<\/span> result<\/span>[<\/span>0<\/span>]<\/span>.as_bool<\/span>()<\/span>.unwrap<\/span>();<\/span>\n    let<\/span> hook<\/span> =<\/span> update_work_in_progress_hook<\/span>();<\/span>\n    if<\/span> let<\/span> MemoizedState<\/span>::<\/span>MemoizedJsValue<\/span>(<\/span>start<\/span>)<\/span> =<\/span> hook<\/span>\n        .as_ref<\/span>()<\/span>\n        .unwrap<\/span>()<\/span>\n        .clone<\/span>()<\/span>\n        .borrow<\/span>()<\/span>\n        .memoized_state<\/span>\n        .as_ref<\/span>()<\/span>\n        .unwrap<\/span>()<\/span>\n    {<\/span>\n        return<\/span> vec!<\/span>[<\/span>JsValue<\/span>::<\/span>from_bool<\/span>(<\/span>is_pending<\/span>),<\/span> start<\/span>.into<\/span>()];<\/span>\n    }<\/span>\n    panic!<\/span>(<\/span>\"update_transition\"<\/span>)<\/span>\n}<\/span>\n<\/code><\/pre>\n<\/div>\n
\u06a9\u0644\u06cc\u062f \u062f\u0631 \u067e\u06cc\u0627\u062f\u0647 \u0633\u0627\u0632\u06cc \u0646\u0647\u0641\u062a\u0647 \u0627\u0633\u062a start_transition<\/code>:\n<\/p>\n
\n
fn<\/span> start_transition<\/span>(<\/span>set_pending<\/span>:<\/span> Function<\/span>,<\/span> callback<\/span>:<\/span> Function<\/span>)<\/span> {<\/span>\n    set_pending<\/span>.call1<\/span>(<\/span>&<\/span>JsValue<\/span>::<\/span>null<\/span>(),<\/span> &<\/span>JsValue<\/span>::<\/span>from_bool<\/span>(<\/span>true<\/span>));<\/span>\n    let<\/span> prev_transition<\/span> =<\/span> unsafe<\/span> {<\/span> REACT_CURRENT_BATCH_CONFIG<\/span>.transition<\/span> };<\/span>\n\n    \/\/ low priority<\/span>\n    unsafe<\/span> {<\/span> REACT_CURRENT_BATCH_CONFIG<\/span>.transition<\/span> =<\/span> Lane<\/span>::<\/span>TransitionLane<\/span>.bits<\/span>()<\/span> };<\/span>\n    callback<\/span>.call0<\/span>(<\/span>&<\/span>JsValue<\/span>::<\/span>null<\/span>());<\/span>\n    set_pending<\/span>.call1<\/span>(<\/span>&<\/span>JsValue<\/span>::<\/span>null<\/span>(),<\/span> &<\/span>JsValue<\/span>::<\/span>from_bool<\/span>(<\/span>false<\/span>));<\/span>\n\n    unsafe<\/span> {<\/span> REACT_CURRENT_BATCH_CONFIG<\/span>.transition<\/span> =<\/span> prev_transition<\/span> };<\/span>\n}<\/span>\n<\/code><\/pre>\n<\/div>\n
\u0628\u0627 \u062a\u0648\u062c\u0647 \u0628\u0647 \u062a\u062c\u0632\u06cc\u0647 \u0648 \u062a\u062d\u0644\u06cc\u0644 \u062f\u0631 \u0627\u06cc\u0646 \u0645\u0642\u0627\u0644\u0647\u060c \u067e\u06cc\u0627\u062f\u0647 \u0633\u0627\u0632\u06cc \u0627\u0628\u062a\u062f\u0627 \u0628\u0647 \u0631\u0648\u0632 \u0631\u0633\u0627\u0646\u06cc \u0645\u06cc \u0634\u0648\u062f isPending<\/code> \u0628\u0647 true<\/code> \u0628\u0627 \u0627\u0648\u0644\u0648\u06cc\u062a \u0641\u0639\u0644\u06cc \u0633\u067e\u0633 \u0627\u0648\u0644\u0648\u06cc\u062a \u0631\u0627 \u06a9\u0627\u0647\u0634 \u0645\u06cc \u062f\u0647\u062f\u060c \u0627\u062c\u0631\u0627 \u0645\u06cc \u06a9\u0646\u062f callback<\/code>\u060c \u0648 \u0628\u0647 \u0631\u0648\u0632 \u0631\u0633\u0627\u0646\u06cc \u0647\u0627 isPending<\/code> \u0628\u0647 false<\/code>. \u062f\u0631 \u0646\u0647\u0627\u06cc\u062a\u060c \u0627\u0648\u0644\u0648\u06cc\u062a \u0642\u0628\u0644\u06cc \u0631\u0627 \u0628\u0627\u0632\u06cc\u0627\u0628\u06cc \u0645\u06cc \u06a9\u0646\u062f.<\/p>\n
\u0641\u0631\u0622\u06cc\u0646\u062f \u0628\u0647\u200c\u0631\u0648\u0632\u0631\u0633\u0627\u0646\u06cc \u0628\u0627 \u0627\u0648\u0644\u0648\u06cc\u062a \u06a9\u0645\u062a\u0631 \u0627\u0632 \u062d\u0627\u0644\u062a \u0647\u0645\u0632\u0645\u0627\u0646 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc\u200c\u06a9\u0646\u062f\u060c \u0628\u0647 \u0647\u0645\u06cc\u0646 \u062f\u0644\u06cc\u0644 \u0627\u0633\u062a \u06a9\u0647 \u0631\u0627\u0628\u0637 \u06a9\u0627\u0631\u0628\u0631\u06cc \u0631\u0627 \u0645\u0633\u062f\u0648\u062f \u0646\u0645\u06cc\u200c\u06a9\u0646\u062f:\n<\/p>\n
\n
if<\/span> cur_priority<\/span> ==<\/span> Lane<\/span>::<\/span>SyncLane<\/span> {<\/span>\n  ...<\/span>\n}<\/span> else<\/span> {<\/span>\n    if<\/span> is_dev<\/span>()<\/span> {<\/span>\n        log<\/span>!<\/span>(<\/span>\"Schedule in macrotask, priority {:?}\"<\/span>,<\/span> update_lanes<\/span>);<\/span>\n    }<\/span>\n    let<\/span> scheduler_priority<\/span> =<\/span> lanes_to_scheduler_priority<\/span>(<\/span>cur_priority<\/span>.clone<\/span>());<\/span>\n    let<\/span> closure<\/span> =<\/span> Closure<\/span>::<\/span>wrap<\/span>(<\/span>Box<\/span>::<\/span>new<\/span>(<\/span>move<\/span> |<\/span>did_timeout_js_value<\/span>:<\/span> JsValue<\/span>|<\/span> {<\/span>\n        let<\/span> did_timeout<\/span> =<\/span> did_timeout_js_value<\/span>.as_bool<\/span>()<\/span>.unwrap<\/span>();<\/span>\n        perform_concurrent_work_on_root<\/span>(<\/span>root_cloned<\/span>.clone<\/span>(),<\/span> did_timeout<\/span>)<\/span>\n    })<\/span> as<\/span> Box<\/span><<\/span>dyn<\/span> Fn<\/span>(<\/span>JsValue<\/span>)<\/span> -><\/span> JsValue<\/span>><\/span>);<\/span>\n    let<\/span> function<\/span> =<\/span> closure<\/span>.as_ref<\/span>()<\/span>.unchecked_ref<\/span>::<\/span><<\/span>Function<\/span>><\/span>()<\/span>.clone<\/span>();<\/span>\n    closure<\/span>.forget<\/span>();<\/span>\n    new_callback_node<\/span> =<\/span> Some<\/span>(<\/span>unstable_schedule_callback_no_delay<\/span>(<\/span>\n        scheduler_priority<\/span>,<\/span>\n        function<\/span>,<\/span>\n    ))<\/span>\n}<\/span>\n<\/code><\/pre>\n<\/div>\n
\u0628\u0627 \u0627\u06cc\u0646 \u06a9\u0627\u0631\u060c \u0627\u062c\u0631\u0627\u06cc useTransition<\/code> \u0627\u06a9\u062b\u0631\u0627 \u06a9\u0627\u0645\u0644 \u0627\u0633\u062a \u0628\u0627 \u0627\u06cc\u0646 \u062d\u0627\u0644\u060c \u062f\u0631 \u0637\u0648\u0644 \u0641\u0631\u0622\u06cc\u0646\u062f \u0628\u0627 \u0686\u0646\u062f \u0627\u0634\u06a9\u0627\u0644 \u0645\u0648\u0627\u062c\u0647 \u0634\u062f:<\/p>\n
\u0627\u0648\u0644\u06cc\u0646 \u0628\u0627\u06af \u0648\u0627\u0631\u062f \u0634\u062f\u0647 \u0627\u0633\u062a begin_work.rs<\/code>:\n<\/p>\n
\n
work_in_progress<\/span>.borrow_mut<\/span>()<\/span>.lanes<\/span> =<\/span> Lane<\/span>::<\/span>NoLane<\/span>;<\/span>\n<\/code><\/pre>\n<\/div>\n
\u0647\u0646\u06af\u0627\u0645\u06cc \u06a9\u0647 \u06cc\u06a9 FiberNode \u0686\u0646\u062f\u06cc\u0646 Lane \u062f\u0627\u0631\u062f\u060c \u0627\u06cc\u0646 \u0631\u0648\u06cc\u06a9\u0631\u062f \u0628\u0627\u0639\u062b \u0627\u06cc\u062c\u0627\u062f \u0645\u0634\u06a9\u0644\u0627\u062a\u06cc \u0645\u06cc \u0634\u0648\u062f. \u0628\u0627\u06cc\u062f \u0628\u0647 :\n<\/p>\n
\n
work_in_progress<\/span>.borrow_mut<\/span>()<\/span>.lanes<\/span> -=<\/span> render_lane<\/span>;<\/span>\n<\/code><\/pre>\n<\/div>\n
\u0628\u0647 \u0637\u0648\u0631\u06cc \u06a9\u0647 \u0647\u0631 \u0628\u0627\u0631 \u0641\u0642\u0637 Lane \u0631\u0646\u062f\u0631 \u0634\u062f\u0647 \u0641\u0639\u0644\u06cc \u062d\u0630\u0641 \u0645\u06cc \u0634\u0648\u062f.<\/p>\n
\u0628\u0627\u06af \u062f\u0648\u0645 \u0648\u0627\u0631\u062f \u0634\u062f\u0647 \u0627\u0633\u062a work_loop.rs<\/code>:\n<\/p>\n
\n
log<\/span>!<\/span>(<\/span>\"render over {:?}\"<\/span>,<\/span> *<\/span>root<\/span>.clone<\/span>()<\/span>.borrow<\/span>());<\/span>\nWORK_IN_PROGRESS_ROOT_RENDER_LANE<\/span> =<\/span> Lane<\/span>::<\/span>NoLane<\/span>;<\/span>\n<\/code><\/pre>\n<\/div>\n
\u062f\u0631 \u0627\u0635\u0644\u060c \u0627\u06cc\u0646 \u062e\u0637 \u062f\u0631 \u0628\u0648\u062f render_root<\/code> \u062a\u0627\u0628\u0639\u060c \u062a\u0646\u0638\u06cc\u0645 \u0645\u062c\u062f\u062f \u0645\u062a\u063a\u06cc\u0631 \u067e\u0633 \u0627\u0632 \u062a\u06a9\u0645\u06cc\u0644 \u0641\u0627\u0632 Render. \u0627\u0645\u0627 \u062f\u0631 \u062d\u0627\u0644\u062a \u0647\u0645\u0632\u0645\u0627\u0646\u060c \u0632\u0645\u0627\u0646\u06cc \u06a9\u0647 \u0641\u0631\u0622\u06cc\u0646\u062f Render \u0642\u0637\u0639 \u0645\u06cc \u0634\u0648\u062f\u060c \u0627\u06cc\u0646 \u0645\u062a\u063a\u06cc\u0631 \u0646\u0628\u0627\u06cc\u062f \u0631\u06cc\u0633\u062a \u0634\u0648\u062f. \u0628\u0646\u0627\u0628\u0631\u0627\u06cc\u0646\u060c \u0627\u06cc\u0646 \u062e\u0637 \u0628\u0647 perform_concurrent_work_on_root<\/code>:\n<\/p>\n
\n
if<\/span> exit_status<\/span> ==<\/span> ROOT_COMPLETED<\/span> {<\/span>\n    ...<\/span>\n    unsafe<\/span> {<\/span> WORK_IN_PROGRESS_ROOT_RENDER_LANE<\/span> =<\/span> Lane<\/span>::<\/span>NoLane<\/span> };<\/span>\n}<\/span>\n<\/code><\/pre>\n<\/div>\n
\u0628\u0647 \u0637\u0648\u0631\u06cc \u06a9\u0647 \u0645\u062a\u063a\u06cc\u0631 \u062a\u0646\u0647\u0627 \u0632\u0645\u0627\u0646\u06cc \u0631\u06cc\u0633\u062a \u0645\u06cc \u0634\u0648\u062f \u06a9\u0647 \u0641\u0631\u0622\u06cc\u0646\u062f Render \u06a9\u0627\u0645\u0644 \u0634\u0648\u062f.<\/p>\n
\u0628\u0627\u06af \u0633\u0648\u0645 \u0648\u0627\u0631\u062f \u0634\u062f\u0647 \u0627\u0633\u062a update_queue.rs<\/code>\u060c \u0647\u0645\u0627\u0646\u0637\u0648\u0631 \u06a9\u0647 \u062f\u0631 \u062a\u0635\u0648\u06cc\u0631 \u0632\u06cc\u0631 \u0646\u0634\u0627\u0646 \u062f\u0627\u062f\u0647 \u0634\u062f\u0647 \u0627\u0633\u062a:<\/p>\n
\"\u062a\u0648\u0636\u06cc\u062d\u0627\u062a<\/p>\n
\u0639\u0644\u0627\u0648\u0647 \u0628\u0631 \u0627\u06cc\u0646\u060c Scheduler \u0628\u0627\u0632\u0633\u0627\u0632\u06cc \u0634\u062f\u0647 \u0627\u0633\u062a. \u0642\u0628\u0644\u0627\u064b min-heap \u0628\u0647 \u0635\u0648\u0631\u062a \u0632\u06cc\u0631 \u062a\u0639\u0631\u06cc\u0641 \u0645\u06cc \u0634\u062f:\n<\/p>\n
\n
static<\/span> mut<\/span> TASK_QUEUE<\/span>:<\/span> Vec<\/span><<\/span>Task<\/span>><\/span> =<\/span> vec!<\/span>[];<\/span>\nstatic<\/span> mut<\/span> TIMER_QUEUE<\/span>:<\/span> Vec<\/span><<\/span>Task<\/span>><\/span> =<\/span> vec!<\/span>[];<\/span>\n<\/code><\/pre>\n<\/div>\n
\u0627\u06cc\u0646 \u0646\u06cc\u0627\u0632 \u0628\u0647 \u067e\u06cc\u0627\u062f\u0647 \u0633\u0627\u0632\u06cc \u062c\u062f\u0627\u06af\u0627\u0646\u0647 \u062f\u0627\u0631\u062f peek_mut<\/code> \u0639\u0645\u0644\u06a9\u0631\u062f \u0647\u0646\u06af\u0627\u0645 \u0627\u0635\u0644\u0627\u062d \u0648\u06cc\u0698\u06af\u06cc \u0647\u0627\u06cc Task<\/code> \u062f\u0631 \u067e\u0634\u062a\u0647:\n<\/p>\n
\n
let<\/span> mut<\/span> task<\/span> =<\/span> peek_mut<\/span>(<\/span>&<\/span>mut<\/span> TASK_QUEUE<\/span>);<\/span>\ntask<\/span>.callback<\/span> =<\/span> JsValue<\/span>::<\/span>null<\/span>();<\/span>\n<\/code><\/pre>\n<\/div>\n
\u0627\u06a9\u0646\u0648\u0646 \u0628\u0647 \u0627\u06cc\u0646 \u0635\u0648\u0631\u062a \u062a\u063a\u06cc\u06cc\u0631 \u06a9\u0631\u062f\u0647 \u0627\u0633\u062a:\n<\/p>\n
\n
static<\/span> mut<\/span> TASK_QUEUE<\/span>:<\/span> Vec<\/span><<\/span>Rc<\/span><<\/span>RefCell<\/span><<\/span>Task<\/span>>>><\/span> =<\/span> vec!<\/span>[];<\/span>\nstatic<\/span> mut<\/span> TIMER_QUEUE<\/span>:<\/span> Vec<\/span><<\/span>Rc<\/span><<\/span>RefCell<\/span><<\/span>Task<\/span>>>><\/span> =<\/span> vec!<\/span>[];<\/span>\n<\/code><\/pre>\n<\/div>\n
\u0648 peek<\/code> \u062a\u0627\u0628\u0639 \u0631\u0627 \u0645\u06cc \u062a\u0648\u0627\u0646 \u0628\u0647 \u0637\u0648\u0631 \u06cc\u06a9\u0646\u0648\u0627\u062e\u062a \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0631\u062f:\n<\/p>\n
\n
let<\/span> task<\/span> =<\/span> peek<\/span>(<\/span>&<\/span>TASK_QUEUE<\/span>);<\/span>\ntask<\/span>.borrow_mut<\/span>()<\/span>.callback<\/span> =<\/span> JsValue<\/span>::<\/span>null<\/span>();<\/span>\n<\/code><\/pre>\n<\/div>\n
\u0644\u0637\u0641\u0627 \u0628\u0647 \u0645\u0646 \u06cc\u06a9 \u0633\u062a\u0627\u0631\u0647 \u0628\u062f\u0647\u06cc\u062f!<\/p>\n","protected":false},"excerpt":{"rendered":"
\u0628\u0631 \u0627\u0633\u0627\u0633 big-react\u060c \u0645\u0646 \u0642\u0635\u062f \u062f\u0627\u0631\u0645 \u0648\u06cc\u0698\u06af\u06cc \u0647\u0627\u06cc \u0647\u0633\u062a\u0647 React v18 \u0631\u0627 \u0627\u0632 \u0627\u0628\u062a\u062f\u0627 \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 WASM \u0648 Rust \u067e\u06cc\u0627\u062f\u0647 \u0633\u0627\u0632\u06cc \u06a9\u0646\u0645. \u0645\u062e\u0632\u0646 \u06a9\u062f\uff1ahttps:\/\/github.com\/ParadeTo\/big-react-wasm \u0628\u0631\u0686\u0633\u0628 \u0645\u0631\u0628\u0648\u0637 \u0628\u0647 \u0627\u06cc\u0646 \u0645\u0642\u0627\u0644\u0647\uff1av27 useTransition \u06cc\u06a9 \u0647\u0648\u06a9 \u062c\u062f\u06cc\u062f \u0627\u0633\u062a \u06a9\u0647 \u062f\u0631 React \u0645\u0639\u0631\u0641\u06cc \u0634\u062f\u0647 \u0627\u0633\u062a \u06a9\u0647 \u0628\u0647 \u0634\u0645\u0627 \u0627\u0645\u06a9\u0627\u0646 \u0645\u06cc \u062f\u0647\u062f \u0628\u062f\u0648\u0646 \u0645\u0633\u062f\u0648\u062f \u06a9\u0631\u062f\u0646 \u0631\u0627\u0628\u0637 \u06a9\u0627\u0631\u0628\u0631\u06cc\u060c \u0648\u0636\u0639\u06cc\u062a \u0631\u0627 \u0628\u0647 …<\/p>\n","protected":false},"author":2,"featured_media":78093,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"fifu_image_url":"","fifu_image_alt":"","footnotes":""},"categories":[339],"tags":[],"class_list":["post-78092","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-dev"],"_links":{"self":[{"href":"https:\/\/nabfollower.com\/blog\/wp-json\/wp\/v2\/posts\/78092","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/nabfollower.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/nabfollower.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/nabfollower.com\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/nabfollower.com\/blog\/wp-json\/wp\/v2\/comments?post=78092"}],"version-history":[{"count":0,"href":"https:\/\/nabfollower.com\/blog\/wp-json\/wp\/v2\/posts\/78092\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/nabfollower.com\/blog\/wp-json\/wp\/v2\/media\/78093"}],"wp:attachment":[{"href":"https:\/\/nabfollower.com\/blog\/wp-json\/wp\/v2\/media?parent=78092"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/nabfollower.com\/blog\/wp-json\/wp\/v2\/categories?post=78092"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/nabfollower.com\/blog\/wp-json\/wp\/v2\/tags?post=78092"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}