io.parsingdata.metal.expression.value

Interface ValueExpression

All Known Implementing Classes:

Add, And, BinaryValueExpression, Bytes, Cat, Const, Count, CurrentOffset, Div, Elvis, Expand, First, Fold, FoldCat, FoldLeft, FoldRight, Last, Len, Mod, Mul, Neg, Not, Nth, Offset, Or, Ref, Ref.DefinitionRef, Ref.NameRef, Reverse, Self, ShiftLeft, ShiftRight, Sub, UnaryValueExpression

Functional Interface:

This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.

@FunctionalInterface
public interface ValueExpression

Interface for all ValueExpression implementations.

A ValueExpression is an expression that is evaluated by executing its eval(ParseState, Encoding) method. It yields a list of Value objects encapsulated in Optional objects (to guard against nulls).

As context, it receives the current parseState object that as well as the current encoding object.

Method Summary

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

Method Detail

eval

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