Function isFiberMountedImpl

bundle.js:5698–5704

(fiber)

Callback:32,//          0b00100000
Err:64,//               0b01000000
Ref:128};var ReactCurrentOwner=ReactGlobalSharedState_1.ReactCurrentOwner;{var warning$1=require$$0;}var ClassComponent=ReactTypeOfWork.ClassComponent;var HostComponent$1=ReactTypeOfWork.HostComponent;var HostRoot$1=ReactTypeOfWork.HostRoot;var HostPortal=ReactTypeOfWork.HostPortal;var HostText$1=ReactTypeOfWork.HostText;var NoEffect=ReactTypeOfSideEffect.NoEffect;var Placement=ReactTypeOfSideEffect.Placement;var MOUNTING=1;var MOUNTED=2;var UNMOUNTED=3;function isFiberMountedImpl(fiber){var node=fiber;if(!fiber.alternate){// If there is no alternate, this might be a new tree that isn't inserted
// yet. If it is, then it will have a pending insertion effect on it.
if((node.effectTag&Placement)!==NoEffect){return MOUNTING;}while(node['return']){node=node['return'];if((node.effectTag&Placement)!==NoEffect){return MOUNTING;}}}else{while(node['return']){node=node['return'];}}if(node.tag===HostRoot$1){// TODO: Check if this was a nested HostRoot when used with
// renderContainerIntoSubtree.
return MOUNTED;}// If we didn't hit the root, that means that we're in an disconnected tree
// that has been unmounted.
return UNMOUNTED;}var isFiberMounted=function isFiberMounted(fiber){return isFiberMountedImpl(fiber)===MOUNTED;};var isMounted=function isMounted(component){{var owner=ReactCurrentOwner.current;if(owner!==null&&owner.tag===ClassComponent){var ownerFiber=owner;var instance=ownerFiber.stateNode;warning$1(instance._warnedAboutRefsInRender,'%s is accessing isMounted inside its render() function. '+'render() should be a pure function of props and state. It should '+'never access something that requires stale data from the previous '+'render, such as refs. Move this logic to componentDidMount and '+'componentDidUpdate instead.',getComponentName_1(ownerFiber)||'A component');instance._warnedAboutRefsInRender=true;}}var fiber=ReactInstanceMap_1.get(component);if(!fiber){return false;}return isFiberMountedImpl(fiber)===MOUNTED;};function assertIsMounted(fiber){!(isFiberMountedImpl(fiber)===MOUNTED)?invariant(false,'Unable to find node on an unmounted component.'):void 0;}function findCurrentFiberUsingSlowPath(fiber){var alternate=fiber.alternate;if(!alternate){// If there is no alternate, then we only need to check if it is mounted.
var state=isFiberMountedImpl(fiber);!(state!==UNMOUNTED)?invariant(false,'Unable to find node on an unmounted component.'):void 0;if(state===MOUNTING){return null;}return fiber;}// If we have two possible branches, we'll walk backwards up to the root
// to see what path the root points to. On the way we may hit one of the
// special cases and we'll deal with them.