(
asyncId: number,
type: string,
triggerAsyncId: number,
resource: any,
)
| 63 | if (__DEV__ && enableAsyncDebugInfo) { |
| 64 | createHook({ |
| 65 | init( |
| 66 | asyncId: number, |
| 67 | type: string, |
| 68 | triggerAsyncId: number, |
| 69 | resource: any, |
| 70 | ): void { |
| 71 | const trigger = pendingOperations.get(triggerAsyncId); |
| 72 | let node: AsyncSequence; |
| 73 | if (type === 'PROMISE') { |
| 74 | const currentAsyncId = executionAsyncId(); |
| 75 | if (currentAsyncId !== triggerAsyncId) { |
| 76 | // When you call .then() on a native Promise, or await/Promise.all() a thenable, |
| 77 | // then this intermediate Promise is created. We use this as our await point |
| 78 | if (trigger === undefined) { |
| 79 | // We don't track awaits on things that started outside our tracked scope. |
| 80 | return; |
| 81 | } |
| 82 | // If the thing we're waiting on is another Await we still track that sequence |
| 83 | // so that we can later pick the best stack trace in user space. |
| 84 | let stack = null; |
| 85 | let promiseRef: WeakRef<Promise<any>>; |
| 86 | if ( |
| 87 | trigger.stack !== null && |
| 88 | (trigger.tag === AWAIT_NODE || |
| 89 | trigger.tag === UNRESOLVED_AWAIT_NODE) |
| 90 | ) { |
| 91 | // We already had a stack for an await. In a chain of awaits we'll only need one good stack. |
| 92 | // We mark it with an empty stack to signal to any await on this await that we have a stack. |
| 93 | stack = emptyStack; |
| 94 | if (resource._debugInfo !== undefined) { |
| 95 | // We may need to forward this debug info at the end so we need to retain this promise. |
| 96 | promiseRef = new WeakRef((resource: Promise<any>)); |
| 97 | } else { |
| 98 | // Otherwise, we can just refer to the inner one since that's the one we'll log anyway. |
| 99 | promiseRef = trigger.promise; |
| 100 | } |
| 101 | } else { |
| 102 | promiseRef = new WeakRef((resource: Promise<any>)); |
| 103 | const request = resolveRequest(); |
| 104 | if (request === null) { |
| 105 | // We don't collect stacks for awaits that weren't in the scope of a specific render. |
| 106 | } else { |
| 107 | stack = parseStackTracePrivate(new Error(), 5); |
| 108 | if (stack !== null && !isAwaitInUserspace(request, stack)) { |
| 109 | // If this await was not done directly in user space, then clear the stack. We won't use it |
| 110 | // anyway. This lets future awaits on this await know that we still need to get their stacks |
| 111 | // until we find one in user space. |
| 112 | stack = null; |
| 113 | } |
| 114 | } |
| 115 | } |
| 116 | const current = pendingOperations.get(currentAsyncId); |
| 117 | node = ({ |
| 118 | tag: UNRESOLVED_AWAIT_NODE, |
| 119 | owner: resolveOwner(), |
| 120 | stack: stack, |
| 121 | start: performance.now(), |
| 122 | end: -1.1, // set when resolved. |
no test coverage detected