Package convex.core.lang.impl

Class AExceptional

java.lang.Object

convex.core.lang.impl.AExceptional

Direct Known Subclasses:

AReturn, ErrorValue

public abstract class AExceptional
extends Object

Abstract base class for exceptional return values. Java exceptions are expensive and don't make it easy to provide exactly the semantics we want so we return exceptional values in response to errors during on-chain execution. Notable uses: - Early return values from functions - Tail calls - Loop / recur "Do not fear to be eccentric in opinion, for every opinion now accepted was once eccentric." ― Bertrand Russell

Constructor Summary

Constructors

Constructor	Description
AExceptional()

Method Summary

Modifier and Type	Method	Description
abstract ACell	getCode()	Returns the Exception code for this exceptional value
abstract ACell	getMessage()	Gets the message for an exceptional value.

Methods inherited from class java.lang.Object

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

Constructor Details

AExceptional

public AExceptional()

Method Details

getCode

public abstract ACell getCode()

Returns the Exception code for this exceptional value

Returns:

Exception Code

getMessage

public abstract ACell getMessage()

Gets the message for an exceptional value. May or may not be meaningful.

Returns:

Exception Message