scala.tools.nsc.interpreter.shell.IBindings Maven / Gradle / Ivy

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Compiler for the Scala Programming Language

There is a newer version: 2.13.15-M1

/*
 * Scala (https://www.scala-lang.org)
 *
 * Copyright EPFL and Lightbend, Inc.
 *
 * Licensed under Apache License 2.0
 * (http://www.apache.org/licenses/LICENSE-2.0).
 *
 * See the NOTICE file distributed with this work for
 * additional information regarding copyright ownership.
 */

package scala.tools.nsc.interpreter.shell;

import java.util.Map;
import java.util.AbstractMap;
import java.util.Set;
import java.util.AbstractSet;
import java.util.Iterator;
import java.util.NoSuchElementException;
import javax.script.Bindings;

abstract class IBindings extends AbstractMap implements Bindings {
    public Set> entrySet() {
        return new AbstractSet>() {
            public int size() {
                return 0;
            }

            public Iterator> iterator() {
                return new Iterator>() {
                    public boolean hasNext() {
                        return false;
                    }

                    public Map.Entry next() {
                        throw new NoSuchElementException();
                    }

                    public void remove() {
                        throw new UnsupportedOperationException();
                    }
                };
            }

            public boolean add(Map.Entry e) {
                IBindings.this.put(e.getKey(), e.getValue());
                return true;
            }
        };
    }
}