io.parsingdata.metal.expression

Interface Expression

All Known Subinterfaces:

LogicalExpression

All Known Implementing Classes:

And, BinaryLogicalExpression, ComparisonExpression, Eq, EqNum, EqStr, GtEqNum, GtNum, LtEqNum, LtNum, Not, Or, True, UnaryLogicalExpression

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 Expression

Interface for all Expression implementations.

An Expression is evaluated by calling the eval(ParseState, Encoding) method. Given a ParseState and an Encoding, the evaluation either succeeds or fails. Main use of expressions is to define predicates that are evaluated during parsing.

See Also:

Def, Pre, While

Method Summary

Modifier and Type	Method and Description
boolean	eval(ParseState parseState, Encoding encoding)

Method Detail

eval

boolean eval(ParseState parseState,
             Encoding encoding)