io.crums.model.hashing.BaseEntity Maven / Gradle / Ivy
/*
* Copyright 2021 Babak Farhang
*/
package io.crums.model.hashing;
/**
* Parser abstract base type for entities. Entities are pushed onto the parser's
* operand stack. Some of the entities it places on this stack are
* initially incomplete: they are completed as more characters are read in.
*/
abstract class BaseEntity implements Entity {
/**
* Determines if the parser completed this entity.
*/
public abstract boolean isComplete();
/**
* Sets the argument for the entity. A noop for most entity types.
*/
public void setArg(Entity entity) { }
/**
* Determines if this entity is the result of the flip binary
* operation ":". (If we had more than one such binary operation, our design
* would necessitate we return an enum prolly.)
*/
public boolean isFlip() {
return false;
}
/**
* Returns {@linkplain #toText()}.toString().
*/
@Override
public String toString() {
return toText().toString();
}
}