Function warnOnInvalidCallback

bundle.js:7228–7228

(callback,callerName)

case FunctionalComponent$2:{var Component=returnFiber.type;invariant(false,'%s(...): Nothing was returned from render. This usually means a return statement is missing. Or, to render nothing, return null.',Component.displayName||Component.name||'Component');}}}// Remaining cases are all treated as empty.
return deleteRemainingChildren(returnFiber,currentFirstChild);}return reconcileChildFibers;}var reconcileChildFibers$1=ChildReconciler(true,true);var reconcileChildFibersInPlace$1=ChildReconciler(false,true);var mountChildFibersInPlace$1=ChildReconciler(false,false);var cloneChildFibers$1=function cloneChildFibers$1(current,workInProgress){!(current===null||workInProgress.child===current.child)?invariant(false,'Resuming work not yet implemented.'):void 0;if(workInProgress.child===null){return;}var currentChild=workInProgress.child;var newChild=createWorkInProgress$2(currentChild,currentChild.pendingWorkPriority);// TODO: Pass this as an argument, since it's easy to forget.
newChild.pendingProps=currentChild.pendingProps;workInProgress.child=newChild;newChild['return']=workInProgress;while(currentChild.sibling!==null){currentChild=currentChild.sibling;newChild=newChild.sibling=createWorkInProgress$2(currentChild,currentChild.pendingWorkPriority);newChild.pendingProps=currentChild.pendingProps;newChild['return']=workInProgress;}newChild.sibling=null;};var ReactChildFiber={reconcileChildFibers:reconcileChildFibers$1,reconcileChildFibersInPlace:reconcileChildFibersInPlace$1,mountChildFibersInPlace:mountChildFibersInPlace$1,cloneChildFibers:cloneChildFibers$1};var Update$1=ReactTypeOfSideEffect.Update;var AsyncUpdates$1=ReactTypeOfInternalContext.AsyncUpdates;var cacheContext$1=ReactFiberContext.cacheContext;var getMaskedContext$2=ReactFiberContext.getMaskedContext;var getUnmaskedContext$2=ReactFiberContext.getUnmaskedContext;var isContextConsumer$1=ReactFiberContext.isContextConsumer;var addUpdate$1=ReactFiberUpdateQueue.addUpdate;var addReplaceUpdate$1=ReactFiberUpdateQueue.addReplaceUpdate;var addForceUpdate$1=ReactFiberUpdateQueue.addForceUpdate;var beginUpdateQueue$2=ReactFiberUpdateQueue.beginUpdateQueue;var _require5=ReactFiberContext;var hasContextChanged$2=_require5.hasContextChanged;var isMounted$1=ReactFiberTreeReflection.isMounted;var fakeInternalInstance={};var isArray$1=Array.isArray;{var _require7$1=ReactDebugFiberPerf_1,startPhaseTimer$1=_require7$1.startPhaseTimer,stopPhaseTimer$1=_require7$1.stopPhaseTimer;var warning$25=require$$0;var warnOnInvalidCallback=function warnOnInvalidCallback(callback,callerName){warning$25(callback===null||typeof callback==='function','%s(...): Expected the last optional `callback` argument to be a '+'function. Instead received: %s.',callerName,callback);};// This is so gross but it's at least non-critical and can be removed if
// it causes problems. This is meant to give a nicer error message for
// ReactDOM15.unstable_renderSubtreeIntoContainer(reactDOM16Component,
// ...)) which otherwise throws a "_processChildContext is not a function"