io.parsingdata.metal.expression.value.reference

Class Offset

java.lang.Object

io.parsingdata.metal.expression.value.UnaryValueExpression

io.parsingdata.metal.expression.value.reference.Offset

All Implemented Interfaces:

ValueExpression

public class Offset
extends UnaryValueExpression

A ValueExpression that represents the offset of the Values returned by evaluating its operand.

Only ParseValues have an offset, since they originate in the input. If a result does not have an offset (such as the Values returned by Const), empty is returned.

Field Summary

Fields inherited from class io.parsingdata.metal.expression.value.UnaryValueExpression

operand

Constructor Summary

Constructors

Constructor and Description
Offset(ValueExpression operand)

Method Summary

Modifier and Type	Method and Description
Optional<Value>	eval(Value value, ParseState parseState, Encoding encoding)

Methods inherited from class io.parsingdata.metal.expression.value.UnaryValueExpression

equals, eval, hashCode, toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

Offset

public Offset(ValueExpression operand)

Method Detail

eval

public Optional<Value> eval(Value value,
                            ParseState parseState,
                            Encoding encoding)

Specified by:

eval in class UnaryValueExpression