Package net.hydromatic.morel.eval

Class Applicable3<R,A0,A1,A2>

java.lang.Object

net.hydromatic.morel.eval.ApplicableImpl

net.hydromatic.morel.eval.Applicable3<R,A0,A1,A2>

Type Parameters:

R - return type

A0 - type of argument 0

A1 - type of argument 1

A2 - type of argument 2

All Implemented Interfaces:

Applicable, Describable

Direct Known Subclasses:

Codes.StringExtract, Codes.StringSubstring, Codes.VectorUpdate

public abstract class Applicable3<R,A0,A1,A2>
extends ApplicableImpl

Applicable whose argument is a 3-tuple.

Implementations that use Applicable3 are more efficient and concise than ApplicableImpl because there is no need to create an ephemeral tuple (Java List) to pass the arguments, and Java's generics provide the casting.

But the rewrite assumes that the function is strict (always evaluates all arguments, even if the function throws) and doesn't use EvalEnv, so it is not appropriate for all functions.

If a function has an Applicable3 implementation and the argument tuple is evaluated whole, the old evaluation path will be used.

See Also:

Applicable2

Field Summary

Fields inherited from class net.hydromatic.morel.eval.ApplicableImpl

pos

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	Applicable3(BuiltIn builtIn)
protected	Applicable3(BuiltIn builtIn, Pos pos)

Method Summary

Modifier and Type	Method	Description
abstract R	apply(A0 a0, A1 a1, A2 a2)
Object	apply(EvalEnv env, Object argValue)

Methods inherited from class net.hydromatic.morel.eval.ApplicableImpl

describe, toString

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface net.hydromatic.morel.eval.Applicable

asCode

Constructor Detail

Applicable3

protected Applicable3(BuiltIn builtIn,
                      Pos pos)

Applicable3

protected Applicable3(BuiltIn builtIn)

Method Detail

apply

public Object apply(EvalEnv env,
                    Object argValue)

apply

public abstract R apply(A0 a0,
                        A1 a1,
                        A2 a2)