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;
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)
{
}
@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 int[] toArray(int[] target)
{
return target;
}
@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");
}
}