InstanceMethodDispatcher

class InstanceMethodDispatcher(instance: Any, methodName: String, matchNumbersLeniently: Boolean, matchClassesQualnames: Boolean, resolveAmbiguousSpecificity: Boolean) : FunctionDispatcher

Dynamic multiple dispatch for Any Kotlin instances by methodName.

Uses reflection to first find all members matching the expected method name, and then to call the correct method for given arguments.

See the FunctionDispatcher superclass for details on the method resolution strategy and configuration parameters.

Constructors

InstanceMethodDispatcher

fun InstanceMethodDispatcher(instance: Any, methodName: String, matchNumbersLeniently: Boolean = false, matchClassesQualnames: Boolean = false, resolveAmbiguousSpecificity: Boolean = false)

Functions

call

open override fun <R> call(arguments: Array<Any?>): R

Call the correct function for a given array of arguments.

checkCallableMatches

private fun checkCallableMatches(callable: KCallable<Any?>, arguments: Array<Any?>, paramKtypeAppends: HashMap<KCallable<Any?>, ArrayList<KType>>): Boolean

checkParameterMatches

private fun checkParameterMatches(kparam: KParameter, arg: Any?, paramKtypeAppend: ArrayList<KType>): Boolean

equals

open operator fun equals(other: Any?): Boolean

getMatchingCallables

private fun getMatchingCallables(arguments: Array<Any?>, paramKtypeAppends: HashMap<KCallable<Any?>, ArrayList<KType>>): List<KCallable<Any?>>

getMostSpecificCallable

private fun getMostSpecificCallable(matches: List<KCallable<Any?>>, paramKtypes: Map<KCallable<Any?>, ArrayList<KType>>): KCallable<Any?>?

hashCode

open fun hashCode(): Int

nounifyFunctions

open override fun nounifyFunctions(): String

toString

open override fun toString(): String

Properties

functions

val functions: Collection<KCallable<Any?>>

List of functions against which to resolve calls.

instance

val instance: Any

The receiver on which to find and call a method.

matchClassesQualnames

val matchClassesQualnames: Boolean = false

Whether to treat classes as the same if they have the same qualifiedName. Useful for E.G. ignoring the invariant arrays representing vararg parameters. Adds small extra step to some calls.

matchNumbersLeniently

val matchNumbersLeniently: Boolean = false

Whether to treat all numeric types as the same. Useful for E.G. untyped deserialized data. Adds small extra step to most calls.

methodName

val methodName: String

The name of the method to resolve and call.

resolveAmbiguousSpecificity

val resolveAmbiguousSpecificity: Boolean = false

Whether to try to resolve multiple ambiguous matching signatures by finding one that strictly subtypes all others. Rules for this are documented under getMostSpecificCallable. Does not add any extra steps unless needed; Increases function domain properly handled but does not decrease performance in other uses.

Sources

jvm source