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package cdc.mf.model;

import java.util.List;

/**
 * Interface of elements that can own {@link MfParameter parameters}.
 *
 * @author Damien Carbonne
 */
public interface MfParameterOwner extends MfNameItem {
    /**
     * @return The {@link MfParameter parameters} owned by this element.
     */
    public default List getParameters() {
        return getChildren(MfParameter.class);
    }

    /**
     * @param direction The direction.
     * @return The {@link MfParameter parameters} owned by this element and that have {@code direction}.
     */
    public default List getParameters(MfParameterDirection direction) {
        return getChildren(MfParameter.class, x -> x.getDirection() == direction);
    }

    public default List getSignatureParameters() {
        return getChildren(MfParameter.class, x -> x.getDirection() != MfParameterDirection.RETURN);
    }

    public default List getReturnParameters() {
        return getParameters(MfParameterDirection.RETURN);
    }

    /**
     * @return {@code true} if this element owns {@link MfParameter parameters}.
     */
    public default boolean hasParameters() {
        return hasChildren(MfParameter.class);
    }

    /**
     * @return A {@link MfParameter parameter} {@link MfParameter.Builder builder}.
     */
    public MfParameter.Builder parameter();
}