useActionState: Transfer transition context #29694
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Mini-refactor of useActionState to only wrap the action in a transition context if the dispatch is called during a transition. Conceptually, the action starts as soon as the dispatch is called, even if the action is queued until earlier ones finish. We will also warn if an async action is dispatched outside of a transition, since that is almost certainly a mistake. Ideally we would automatically upgrade these to a transition, but we don't have a great way to tell if the action is async until after it's already run.
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Mini-refactor of useActionState to only wrap the action in a transition context if the dispatch is called during a transition. Conceptually, the action starts as soon as the dispatch is called, even if the action is queued until earlier ones finish. We will also warn if an async action is dispatched outside of a transition, since that is almost certainly a mistake. Ideally we would automatically upgrade these to a transition, but we don't have a great way to tell if the action is async until after it's already run. DiffTrain build for commit 67b05be.
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Mini-refactor of useActionState to only wrap the action in a transition context if the dispatch is called during a transition. Conceptually, the action starts as soon as the dispatch is called, even if the action is queued until earlier ones finish. We will also warn if an async action is dispatched outside of a transition, since that is almost certainly a mistake. Ideally we would automatically upgrade these to a transition, but we don't have a great way to tell if the action is async until after it's already run. DiffTrain build for [67b05be](67b05be)
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Based on - #29694 --- If an action in the useActionState queue errors, we shouldn't run any subsequent actions. The contract of useActionState is that the actions run in sequence, and that one action can assume that all previous actions have completed successfully. For example, in a shopping cart UI, you might dispatch an "Add to cart" action followed by a "Checkout" action. If the "Add to cart" action errors, the "Checkout" action should not run. An implication of this change is that once useActionState falls into an error state, the only way to recover is to reset the component tree, i.e. by unmounting and remounting. The way to customize the error handling behavior is to wrap the action body in a try/catch.
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Based on - #29694 --- If an action in the useActionState queue errors, we shouldn't run any subsequent actions. The contract of useActionState is that the actions run in sequence, and that one action can assume that all previous actions have completed successfully. For example, in a shopping cart UI, you might dispatch an "Add to cart" action followed by a "Checkout" action. If the "Add to cart" action errors, the "Checkout" action should not run. An implication of this change is that once useActionState falls into an error state, the only way to recover is to reset the component tree, i.e. by unmounting and remounting. The way to customize the error handling behavior is to wrap the action body in a try/catch. DiffTrain build for commit 9598c41.
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Based on - #29694 --- If an action in the useActionState queue errors, we shouldn't run any subsequent actions. The contract of useActionState is that the actions run in sequence, and that one action can assume that all previous actions have completed successfully. For example, in a shopping cart UI, you might dispatch an "Add to cart" action followed by a "Checkout" action. If the "Add to cart" action errors, the "Checkout" action should not run. An implication of this change is that once useActionState falls into an error state, the only way to recover is to reset the component tree, i.e. by unmounting and remounting. The way to customize the error handling behavior is to wrap the action body in a try/catch. DiffTrain build for [9598c41](9598c41)
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Mini-refactor of useActionState to only wrap the action in a transition context if the dispatch is called during a transition. Conceptually, the action starts as soon as the dispatch is called, even if the action is queued until earlier ones finish.
We will also warn if an async action is dispatched outside of a transition, since that is almost certainly a mistake. Ideally we would automatically upgrade these to a transition, but we don't have a great way to tell if the action is async until after it's already run.