Top Description Fields Constructors Methods
groovy.lang

pack-priv final Class TrampolineClosure<V>

extends Closure<V>
Class Inheritance
A TrampolineClosure wraps a closure that needs to be executed on a functional trampoline. Upon calling, a TrampolineClosure will call the original closure waiting for its result. If the outcome of the call is another instance of a TrampolineClosure, created perhaps as a result to a call to the TrampolineClosure.trampoline() method, the TrampolineClosure will again be invoked. This repetitive invocation of returned TrampolineClosure instances will continue until a value other than TrampolineClosure is returned. That value will become the final result of the trampoline.

Field Summary

Modifier and TypeField and Description
private final Closure<V>
original

private static final long
serialVersionUID

Hides groovy.lang.Closure.serialVersionUID.

Inherited from groovy.lang.Closure:
DELEGATE_FIRSTDELEGATE_ONLYDONEIDENTITYmaximumNumberOfParametersOWNER_FIRSTOWNER_ONLYparameterTypesSKIPTO_SELF

Constructor Summary

AccessConstructor and Description
pack-priv
TrampolineClosure(final Closure<V> original)

Method Summary

Modifier and TypeMethod and Description
public V

Returns:

The final result of the trampoline
call()

Overrides groovy.lang.Closure.call.

Implements java.util.concurrent.Callable.call.

Starts the trampoline loop and calls the wrapped closure as the first step.
public V

Returns:

The final result of the trampoline
call(final Object
could be a single value or a List of values
arguments)

Overrides groovy.lang.Closure.call.

Starts the trampoline loop and calls the wrapped closure as the first step.
public V

Returns:

The final result of the trampoline
call(final Object... args)

Overrides groovy.lang.Closure.call.

Starts the trampoline loop and calls the wrapped closure as the first step.
public int
getMaximumNumberOfParameters()

Overrides groovy.lang.Closure.getMaximumNumberOfParameters.

Delegates to the wrapped closure
public Class<T>[]
getParameterTypes()

Overrides groovy.lang.Closure.getParameterTypes.

Delegates to the wrapped closure
private V
loop(final Object lastResult)

public Closure<V>

Returns:

An instance of TrampolineClosure wrapping the original closure after currying.
trampoline(final Object...
Parameters to curry to the underlying closure.
args)

Overrides groovy.lang.Closure.trampoline.

Builds a trampolined variant of the current closure.
public Closure<V>

Returns:

An instance of TrampolineClosure wrapping the original closure.
trampoline()

Overrides groovy.lang.Closure.trampoline.

Returns itself, since it is a good enough trampolined variant of the current closure.
Inherited from groovy.lang.Closure:
andThenandThenSelfandThenSelfasWritableclonecomposecomposeSelfcomposeSelfcurrycurrydehydrategetDelegategetDirectivegetOwnergetPropertygetResolveStrategygetThisObjectisCaseleftShiftleftShiftmemoizememoizeAtLeastmemoizeAtMostmemoizeBetweenncurryncurryrcurryrcurryrehydraterightShiftrunsetDelegatesetDirectivesetPropertysetResolveStrategythrowRuntimeException

Field Detail

originalback to summary
private final Closure<V> original
serialVersionUIDback to summary
private static final long serialVersionUID

Hides groovy.lang.Closure.serialVersionUID.

Constructor Detail

TrampolineClosureback to summary
pack-priv TrampolineClosure(final Closure<V> original)

Method Detail

callback to summary
public V call()

Overrides groovy.lang.Closure.call.

Implements java.util.concurrent.Callable.call.

Starts the trampoline loop and calls the wrapped closure as the first step.

Returns:V

The final result of the trampoline

Annotations
@Override
callback to summary
public V call(final Object arguments)

Overrides groovy.lang.Closure.call.

Starts the trampoline loop and calls the wrapped closure as the first step.

Parameters
arguments:Object

Doc from groovy.lang.Closure.call.

could be a single value or a List of values

Returns:V

The final result of the trampoline

Annotations
@Override
callback to summary
public V call(final Object... args)

Overrides groovy.lang.Closure.call.

Starts the trampoline loop and calls the wrapped closure as the first step.

Returns:V

The final result of the trampoline

Annotations
@Override
getMaximumNumberOfParametersback to summary
public int getMaximumNumberOfParameters()

Overrides groovy.lang.Closure.getMaximumNumberOfParameters.

Delegates to the wrapped closure

Returns:int

Doc from groovy.lang.Closure.getMaximumNumberOfParameters.

the maximum number of parameters a doCall method of this closure can take

Annotations
@Override
getParameterTypesback to summary
public Class<T>[] getParameterTypes()

Overrides groovy.lang.Closure.getParameterTypes.

Delegates to the wrapped closure

Returns:Class<T>[]

Doc from groovy.lang.Closure.getParameterTypes.

the parameter types of the longest doCall method of this closure

Annotations
@Override
loopback to summary
private V loop(final Object lastResult)
trampolineback to summary
public Closure<V> trampoline(final Object... args)

Overrides groovy.lang.Closure.trampoline.

Builds a trampolined variant of the current closure.

Parameters
args:Object[]

Parameters to curry to the underlying closure.

Returns:Closure<V>

An instance of TrampolineClosure wrapping the original closure after currying.

Annotations
@Override
trampolineback to summary
public Closure<V> trampoline()

Overrides groovy.lang.Closure.trampoline.

Returns itself, since it is a good enough trampolined variant of the current closure.

Returns:Closure<V>

An instance of TrampolineClosure wrapping the original closure.

Annotations
@Override