/*******************************************************************************
* PSHDL is a library and (trans-)compiler for PSHDL input. It generates
* output suitable for implementation or simulation of it.
*
* Copyright (C) 2014 Karsten Becker (feedback (at) pshdl (dot) org)
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* This License does not grant permission to use the trade names, trademarks,
* service marks, or product names of the Licensor, except as required for
* reasonable and customary use in describing the origin of the Work.
*
* Contributors:
* Karsten Becker - initial API and implementation
******************************************************************************/
package org.pshdl.model.impl;
import java.util.EnumSet;
import java.util.Iterator;
import javax.annotation.Nonnull;
import javax.annotation.Nullable;
import org.pshdl.model.HDLClass;
import org.pshdl.model.HDLExpression;
import org.pshdl.model.HDLObject;
import org.pshdl.model.HDLOpExpression;
import org.pshdl.model.IHDLObject;
import org.pshdl.model.utils.CopyFilter;
import com.google.common.collect.Iterators;
@SuppressWarnings("all")
public abstract class AbstractHDLOpExpression extends HDLObject implements HDLExpression {
/**
* Constructs a new instance of {@link AbstractHDLOpExpression}
*
* @param container
* the value for container. Can be <code>null</code>.
* @param left
* the value for left. Can <b>not</b> be <code>null</code>.
* @param right
* the value for right. Can <b>not</b> be <code>null</code>.
* @param validate
* if <code>true</code> the parameters will be validated.
*/
public AbstractHDLOpExpression(int id, @Nullable IHDLObject container, @Nonnull HDLExpression left, @Nonnull HDLExpression right, boolean validate) {
super(id, container, validate);
if (validate) {
left = validateLeft(left);
}
if (left != null) {
this.left = left;
} else {
this.left = null;
}
if (validate) {
right = validateRight(right);
}
if (right != null) {
this.right = right;
} else {
this.right = null;
}
}
public AbstractHDLOpExpression() {
super();
this.left = null;
this.right = null;
}
protected final HDLExpression left;
/**
* Get the left field. Can <b>not</b> be <code>null</code>.
*
* @return the field
*/
@Nonnull
public HDLExpression getLeft() {
return left;
}
protected HDLExpression validateLeft(HDLExpression left) {
if (left == null)
throw new IllegalArgumentException("The field left can not be null!");
return left;
}
protected final HDLExpression right;
/**
* Get the right field. Can <b>not</b> be <code>null</code>.
*
* @return the field
*/
@Nonnull
public HDLExpression getRight() {
return right;
}
protected HDLExpression validateRight(HDLExpression right) {
if (right == null)
throw new IllegalArgumentException("The field right can not be null!");
return right;
}
@Nonnull
public abstract HDLOpExpression setLeft(@Nonnull HDLExpression left);
@Nonnull
public abstract HDLOpExpression setRight(@Nonnull HDLExpression right);
/**
* Creates a copy of this class with the same fields.
*
* @return a new instance of this class.
*/
@Override
@Nonnull
public abstract HDLOpExpression copy();
/**
* Creates a copy of this class with the same fields.
*
* @return a new instance of this class.
*/
@Override
@Nonnull
public abstract HDLOpExpression copyFiltered(CopyFilter filter);
/**
* Creates a deep copy of this class with the same fields and frozen
*
* @return a new instance of this class.
*/
@Override
@Nonnull
public abstract HDLOpExpression copyDeepFrozen(IHDLObject container);
@Override
public boolean equals(Object obj) {
if (this == obj)
return true;
if (obj == null)
return false;
if (!(obj instanceof AbstractHDLOpExpression))
return false;
if (!super.equals(obj))
return false;
final AbstractHDLOpExpression other = (AbstractHDLOpExpression) obj;
if (left == null) {
if (other.left != null)
return false;
} else if (!left.equals(other.left))
return false;
if (right == null) {
if (other.right != null)
return false;
} else if (!right.equals(other.right))
return false;
return true;
}
private Integer hashCache;
@Override
public int hashCode() {
if (hashCache != null)
return hashCache;
int result = super.hashCode();
final int prime = 31;
result = (prime * result) + ((left == null) ? 0 : left.hashCode());
result = (prime * result) + ((right == null) ? 0 : right.hashCode());
hashCache = result;
return result;
}
@Override
public String toConstructionString(String spacing) {
final boolean first = true;
final StringBuilder sb = new StringBuilder();
sb.append('\n').append(spacing).append("new HDLOpExpression()");
if (left != null) {
sb.append(".setLeft(").append(left.toConstructionString(spacing + "\t")).append(")");
}
if (right != null) {
sb.append(".setRight(").append(right.toConstructionString(spacing + "\t")).append(")");
}
return sb.toString();
}
@Override
public void validateAllFields(IHDLObject expectedParent, boolean checkResolve) {
super.validateAllFields(expectedParent, checkResolve);
validateLeft(getLeft());
if (getLeft() != null) {
getLeft().validateAllFields(this, checkResolve);
}
validateRight(getRight());
if (getRight() != null) {
getRight().validateAllFields(this, checkResolve);
}
}
@Override
public EnumSet<HDLClass> getClassSet() {
return EnumSet.of(HDLClass.HDLOpExpression, HDLClass.HDLExpression, HDLClass.HDLObject);
}
@Override
public Iterator<IHDLObject> deepIterator() {
return new Iterator<IHDLObject>() {
private int pos = 0;
private Iterator<? extends IHDLObject> current;
@Override
public boolean hasNext() {
if ((current != null) && !current.hasNext()) {
current = null;
}
while (current == null) {
switch (pos++) {
case 0:
if (left != null) {
current = Iterators.concat(Iterators.forArray(left), left.deepIterator());
}
break;
case 1:
if (right != null) {
current = Iterators.concat(Iterators.forArray(right), right.deepIterator());
}
break;
default:
return false;
}
}
return (current != null) && current.hasNext();
}
@Override
public IHDLObject next() {
return current.next();
}
@Override
public void remove() {
throw new IllegalArgumentException("Not supported");
}
};
}
@Override
public Iterator<IHDLObject> iterator() {
return new Iterator<IHDLObject>() {
private int pos = 0;
private Iterator<? extends IHDLObject> current;
@Override
public boolean hasNext() {
if ((current != null) && !current.hasNext()) {
current = null;
}
while (current == null) {
switch (pos++) {
case 0:
if (left != null) {
current = Iterators.singletonIterator(left);
}
break;
case 1:
if (right != null) {
current = Iterators.singletonIterator(right);
}
break;
default:
return false;
}
}
return (current != null) && current.hasNext();
}
@Override
public IHDLObject next() {
return current.next();
}
@Override
public void remove() {
throw new IllegalArgumentException("Not supported");
}
};
}
}