/*
 * Copyright (c) 2018 Goldman Sachs.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * and Eclipse Distribution License v. 1.0 which accompany this distribution.
 * The Eclipse Public License is available at http://www.eclipse.org/legal/epl-v10.html
 * and the Eclipse Distribution License is available at
 * http://www.eclipse.org/org/documents/edl-v10.php.
 */

package org.eclipse.collections.impl.stack.immutable.primitive;

import java.io.IOException;
import java.io.Serializable;
import java.util.EmptyStackException;
import java.util.NoSuchElementException;

import org.eclipse.collections.api.IntIterable;
import org.eclipse.collections.api.LazyIntIterable;
import org.eclipse.collections.api.RichIterable;
import org.eclipse.collections.api.bag.primitive.MutableIntBag;
import org.eclipse.collections.api.block.function.primitive.IntToObjectFunction;
import org.eclipse.collections.api.block.function.primitive.ObjectIntIntToObjectFunction;
import org.eclipse.collections.api.block.function.primitive.ObjectIntToObjectFunction;
import org.eclipse.collections.api.block.predicate.primitive.IntPredicate;
import org.eclipse.collections.api.block.procedure.primitive.IntIntProcedure;
import org.eclipse.collections.api.block.procedure.primitive.IntProcedure;
import org.eclipse.collections.api.iterator.IntIterator;
import org.eclipse.collections.api.list.primitive.IntList;
import org.eclipse.collections.api.list.primitive.MutableIntList;
import org.eclipse.collections.api.set.primitive.MutableIntSet;
import org.eclipse.collections.api.stack.ImmutableStack;
import org.eclipse.collections.api.stack.primitive.ImmutableIntStack;
import org.eclipse.collections.api.stack.primitive.IntStack;
import org.eclipse.collections.impl.bag.mutable.primitive.IntHashBag;
import org.eclipse.collections.impl.factory.Stacks;
import org.eclipse.collections.impl.factory.primitive.IntStacks;
import org.eclipse.collections.impl.iterator.ImmutableEmptyIntIterator;
import org.eclipse.collections.impl.lazy.primitive.LazyIntIterableAdapter;
import org.eclipse.collections.impl.list.mutable.primitive.IntArrayList;
import org.eclipse.collections.impl.set.mutable.primitive.IntHashSet;
import org.eclipse.collections.impl.factory.Lists;

ImmutableIntEmptyStack is an optimization for ImmutableIntStack of size 0. This file was automatically generated from template file immutablePrimitiveEmptyStack.stg.
/** * ImmutableIntEmptyStack is an optimization for {@link ImmutableIntStack} of size 0. * This file was automatically generated from template file immutablePrimitiveEmptyStack.stg. */
final class ImmutableIntEmptyStack implements ImmutableIntStack, Serializable { static final ImmutableIntStack INSTANCE = new ImmutableIntEmptyStack(); private static final long serialVersionUID = 1L; private Object readResolve() { return INSTANCE; } @Override public IntIterator intIterator() { return ImmutableEmptyIntIterator.INSTANCE; } @Override public void forEach(IntProcedure procedure) { }
Since:7.0.
/** * @since 7.0. */
@Override public void each(IntProcedure procedure) { } @Override public int count(IntPredicate predicate) { return 0; } @Override public boolean anySatisfy(IntPredicate predicate) { return false; } @Override public boolean allSatisfy(IntPredicate predicate) { return true; } @Override public boolean noneSatisfy(IntPredicate predicate) { return true; } @Override public int peek() { throw new EmptyStackException(); } @Override public IntList peek(int count) { this.checkNegativeCount(count); if (count == 0) { return new IntArrayList(0); } throw new EmptyStackException(); } @Override public int peekAt(int index) { this.checkNegativeCount(index); throw new EmptyStackException(); } @Override public ImmutableIntStack select(IntPredicate predicate) { return this; } @Override public ImmutableIntStack reject(IntPredicate predicate) { return this; } @Override public int detectIfNone(IntPredicate predicate, int ifNone) { return ifNone; } @Override public <V> ImmutableStack<V> collect(IntToObjectFunction<? extends V> function) { return Stacks.immutable.of(); } @Override public long sum() { return 0; } @Override public int max() { throw new NoSuchElementException(); } @Override public int maxIfEmpty(int defaultValue) { return defaultValue; } @Override public int min() { throw new NoSuchElementException(); } @Override public int minIfEmpty(int defaultValue) { return defaultValue; } @Override public double average() { throw new ArithmeticException(); } @Override public double median() { throw new ArithmeticException(); } @Override public int[] toSortedArray() { return new int[0]; } @Override public MutableIntList toSortedList() { return new IntArrayList(); } @Override public int[] toArray() { return new int[0]; } @Override public boolean contains(int value) { return false; } @Override public boolean containsAll(int... source) { return source.length == 0; } @Override public boolean containsAll(IntIterable source) { return source.isEmpty(); } @Override public MutableIntList toList() { return new IntArrayList(); } @Override public MutableIntSet toSet() { return new IntHashSet(); } @Override public MutableIntBag toBag() { return new IntHashBag(); } @Override public LazyIntIterable asLazy() { return new LazyIntIterableAdapter(this); } @Override public ImmutableIntStack toImmutable() { return this; } @Override public ImmutableIntStack push(int element) { return IntStacks.immutable.with(element); } @Override public ImmutableIntStack pop() { throw new EmptyStackException(); } @Override public ImmutableIntStack pop(int count) { this.checkNegativeCount(count); if (count == 0) { return this; } throw new EmptyStackException(); } private void checkNegativeCount(int count) { if (count < 0) { throw new IllegalArgumentException("Count must be positive but was " + count); } } @Override public int size() { return 0; } @Override public boolean isEmpty() { return true; } @Override public boolean notEmpty() { return false; } @Override public <T> T injectInto(T injectedValue, ObjectIntToObjectFunction<? super T, ? extends T> function) { return injectedValue; } @Override public RichIterable<IntIterable> chunk(int size) { return Lists.immutable.empty(); } @Override public boolean equals(Object otherStack) { if (otherStack == this) { return true; } if (!(otherStack instanceof IntStack)) { return false; } IntStack stack = (IntStack) otherStack; return stack.isEmpty(); } @Override public int hashCode() { return 1; } @Override public String toString() { return "[]"; } @Override public String makeString() { return ""; } @Override public String makeString(String separator) { return ""; } @Override public String makeString(String start, String separator, String end) { return start + end; } @Override public void appendString(Appendable appendable) { } @Override public void appendString(Appendable appendable, String separator) { } @Override public void appendString(Appendable appendable, String start, String separator, String end) { try { appendable.append(start); appendable.append(end); } catch (IOException e) { throw new RuntimeException(e); } } @Override public int getFirst() { throw new UnsupportedOperationException(this.getClass().getSimpleName() + ".getFirst() not implemented yet"); } @Override public int indexOf(int value) { throw new UnsupportedOperationException(this.getClass().getSimpleName() + ".indexOf() not implemented yet"); } @Override public <T> T injectIntoWithIndex(T injectedValue, ObjectIntIntToObjectFunction<? super T, ? extends T> function) { throw new UnsupportedOperationException(this.getClass().getSimpleName() + ".injectIntoWithIndex() not implemented yet"); } @Override public void forEachWithIndex(IntIntProcedure procedure) { throw new UnsupportedOperationException(this.getClass().getSimpleName() + ".forEachWithIndex() not implemented yet"); } }