/******************************************************************************* * 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.HDLBitOp; import org.pshdl.model.HDLBitOp.HDLBitOpType; import org.pshdl.model.HDLClass; import org.pshdl.model.HDLExpression; 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 AbstractHDLBitOp extends HDLOpExpression { /** * Constructs a new instance of {@link AbstractHDLBitOp} * * @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 type * the value for type. Can <b>not</b> be <code>null</code>. * @param validate * if <code>true</code> the parameters will be validated. */ public AbstractHDLBitOp(int id, @Nullable IHDLObject container, @Nonnull HDLExpression left, @Nonnull HDLExpression right, @Nonnull HDLBitOpType type, boolean validate) { super(id, container, left, right, validate); if (validate) { type = validateType(type); } this.type = type; } public AbstractHDLBitOp() { super(); this.type = null; } protected final HDLBitOpType type; /** * Get the type field. Can <b>not</b> be <code>null</code>. * * @return the field */ @Override @Nonnull public HDLBitOpType getType() { return type; } protected HDLBitOpType validateType(HDLBitOpType type) { if (type == null) throw new IllegalArgumentException("The field type can not be null!"); return type; } /** * Creates a copy of this class with the same fields. * * @return a new instance of this class. */ @Override @Nonnull public HDLBitOp copy() { final HDLBitOp newObject = new HDLBitOp(id, null, left, right, type, false); copyMetaData(this, newObject, false); return newObject; } /** * Creates a copy of this class with the same fields. * * @return a new instance of this class. */ @Override @Nonnull public HDLBitOp copyFiltered(CopyFilter filter) { final HDLExpression filteredleft = filter.copyObject("left", this, left); final HDLExpression filteredright = filter.copyObject("right", this, right); final HDLBitOpType filteredtype = filter.copyObject("type", this, type); return filter.postFilter((HDLBitOp) this, new HDLBitOp(id, null, filteredleft, filteredright, filteredtype, false)); } /** * Creates a deep copy of this class with the same fields and freezes it. * * @return a new instance of this class. */ @Override @Nonnull public HDLBitOp copyDeepFrozen(IHDLObject container) { final HDLBitOp copy = copyFiltered(CopyFilter.DEEP_META); copy.freeze(container); return copy; } /** * Setter for the field {@link #getContainer()}. * * @param container * sets the new container of this object. Can be * <code>null</code>. * @return the same instance of {@link HDLBitOp} with the updated container * field. */ @Override @Nonnull public HDLBitOp setContainer(@Nullable IHDLObject container) { return (HDLBitOp) super.setContainer(container); } /** * Setter for the field {@link #getLeft()}. * * @param left * sets the new left of this object. Can <b>not</b> be * <code>null</code>. * @return a new instance of {@link HDLBitOp} with the updated left field. */ @Override @Nonnull public HDLBitOp setLeft(@Nonnull HDLExpression left) { left = validateLeft(left); final HDLBitOp res = new HDLBitOp(id, container, left, right, type, false); return res; } /** * Setter for the field {@link #getRight()}. * * @param right * sets the new right of this object. Can <b>not</b> be * <code>null</code>. * @return a new instance of {@link HDLBitOp} with the updated right field. */ @Override @Nonnull public HDLBitOp setRight(@Nonnull HDLExpression right) { right = validateRight(right); final HDLBitOp res = new HDLBitOp(id, container, left, right, type, false); return res; } /** * Setter for the field {@link #getType()}. * * @param type * sets the new type of this object. Can <b>not</b> be * <code>null</code>. * @return a new instance of {@link HDLBitOp} with the updated type field. */ @Nonnull public HDLBitOp setType(@Nonnull HDLBitOpType type) { type = validateType(type); final HDLBitOp res = new HDLBitOp(id, container, left, right, type, false); return res; } @Override public boolean equals(Object obj) { if (this == obj) return true; if (obj == null) return false; if (!(obj instanceof AbstractHDLBitOp)) return false; if (!super.equals(obj)) return false; final AbstractHDLBitOp other = (AbstractHDLBitOp) obj; if (type == null) { if (other.type != null) return false; } else if (!type.equals(other.type)) 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) + ((type == null) ? 0 : type.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 HDLBitOp()"); if (left != null) { sb.append(".setLeft(").append(left.toConstructionString(spacing + "\t")).append(")"); } if (right != null) { sb.append(".setRight(").append(right.toConstructionString(spacing + "\t")).append(")"); } if (type != null) { sb.append("\n").append(spacing + "\t").append(".setType(HDLBitOpType.").append(type.name() + ")"); } return sb.toString(); } @Override public void validateAllFields(IHDLObject expectedParent, boolean checkResolve) { super.validateAllFields(expectedParent, checkResolve); validateType(getType()); } @Override public EnumSet<HDLClass> getClassSet() { return EnumSet.of(HDLClass.HDLBitOp, 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"); } }; } }