litho-core/com.facebook.litho/ComponentUtils

ComponentUtils

Constructors

constructor()

Functions

open fun createOrGetErrorEventHandler(component: Component, parentContext: ComponentContext, scopedContext: ComponentContext): EventHandler<ErrorEvent>

hasEquivalentFields

open fun hasEquivalentFields(obj1: Any, obj2: Any): Boolean

Given two object instances of the same type, this method accesses all their internal fields, to check if they are equivalent.

hasEquivalentState

open fun hasEquivalentState(@Nullable stateContainer1: StateContainer, @Nullable stateContainer2: StateContainer): Boolean

isEquivalent

open fun isEquivalent(@Nullable current: Component, @Nullable next: Component): Boolean

Given two components this method accesses all their internal fields, excluding the fields of StateContainer if the class type is a Component, to check if they are equivalent.

isSameComponentType

open fun isSameComponentType(@Nullable a: Component, @Nullable b: Component): Boolean

raise

open fun raise(c: ComponentContext, e: Exception)

Reraise an error event up the hierarchy so it can be caught by another component, or reach the root and cause the application to crash.

wrapWithMetadata

open fun wrapWithMetadata(view: BaseMountingView, e: Exception): LithoMetadataExceptionWrapper

open fun wrapWithMetadata(c: ComponentTree, e: Exception): LithoMetadataExceptionWrapper

Uses the given ComponentTree to add metadata to a wrapper exception (if the wrapper doesn't already exist) and return it.

open fun wrapWithMetadata(c: ComponentContext, e: Exception): LithoMetadataExceptionWrapper

Uses the given ComponentContext to add metadata to a wrapper exception (if the wrapper doesn't already exist) and return it.