| /*=============================================================================# |
| # Copyright (c) 2009, 2021 Stephan Wahlbrink and others. |
| # |
| # This program and the accompanying materials are made available under the |
| # terms of the Eclipse Public License 2.0 which is available at |
| # https://www.eclipse.org/legal/epl-2.0, or the Apache License, Version 2.0 |
| # which is available at https://www.apache.org/licenses/LICENSE-2.0. |
| # |
| # SPDX-License-Identifier: EPL-2.0 OR Apache-2.0 |
| # |
| # Contributors: |
| # Stephan Wahlbrink <sw@wahlbrink.eu> - initial API and implementation |
| #=============================================================================*/ |
| |
| package org.eclipse.statet.internal.r.rdata; |
| |
| import java.io.IOException; |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| import org.eclipse.statet.jcommons.collections.ImCollections; |
| import org.eclipse.statet.jcommons.lang.NonNullByDefault; |
| import org.eclipse.statet.jcommons.lang.Nullable; |
| |
| import org.eclipse.statet.ltk.model.core.element.LtkModelElementFilter; |
| import org.eclipse.statet.r.core.data.CombinedRElement; |
| import org.eclipse.statet.r.core.data.CombinedRList; |
| import org.eclipse.statet.r.core.model.RElementName; |
| import org.eclipse.statet.rj.data.RCharacterStore; |
| import org.eclipse.statet.rj.data.RJIO; |
| import org.eclipse.statet.rj.data.RObject; |
| import org.eclipse.statet.rj.data.RObjectFactory; |
| import org.eclipse.statet.rj.data.RS4Object; |
| import org.eclipse.statet.rj.data.RStore; |
| import org.eclipse.statet.rj.data.impl.ExternalizableRObject; |
| import org.eclipse.statet.rj.data.impl.RCharacter32Store; |
| |
| |
| @NonNullByDefault |
| public final class RS4ObjectVar extends BasicCombinedRElement |
| implements RS4Object, CombinedRList, ExternalizableRObject { |
| |
| |
| private final String className; |
| |
| private final RCharacter32Store slotNames; |
| private final BasicCombinedRElement[] slotValues; |
| private final int dataSlotIdx; |
| |
| |
| public RS4ObjectVar(final RJIO io, final CombinedFactory factory, |
| final @Nullable BasicCombinedRElement parent, final @Nullable RElementName name) |
| throws IOException { |
| super(parent, name); |
| |
| //-- options |
| final int options= io.readInt(); |
| //-- special attributes |
| this.className= io.readString(); |
| //-- data |
| final int l= (int) io.readVULong((byte) (options & RObjectFactory.O_LENGTHGRADE_MASK)); |
| |
| this.dataSlotIdx= io.readInt(); |
| this.slotNames= new RCharacter32Store(io, l); |
| this.slotValues= new BasicCombinedRElement[l]; |
| for (int i= 0; i < l; i++) { |
| this.slotValues[i]= factory.readObject(io, this, |
| RElementName.create(RElementName.SUB_NAMEDSLOT, this.slotNames.getChar(i))); |
| } |
| } |
| |
| @Override |
| public void writeExternal(final RJIO io, final RObjectFactory factory) throws IOException { |
| final int l= this.slotValues.length; |
| //-- options |
| final int options= io.getVULongGrade(l); |
| io.writeInt(options); |
| //-- special attributes |
| io.writeString(this.className); |
| //-- data |
| io.writeVULong((byte) (options & RObjectFactory.O_LENGTHGRADE_MASK), l); |
| |
| io.writeInt(this.dataSlotIdx); |
| this.slotNames.writeExternal(io); |
| for (int i= 0; i < l; i++) { |
| factory.writeObject(this.slotValues[i], io); |
| } |
| } |
| |
| @Override |
| public byte getRObjectType() { |
| return TYPE_S4OBJECT; |
| } |
| |
| @Override |
| public String getRClassName() { |
| return this.className; |
| } |
| |
| |
| @Override |
| public long getLength() { |
| return this.slotValues.length; |
| } |
| |
| @Override |
| public boolean hasDataSlot() { |
| return (this.dataSlotIdx >= 0); |
| } |
| |
| @Override |
| public @Nullable RObject getDataSlot() { |
| return (this.dataSlotIdx >= 0) ? this.slotValues[this.dataSlotIdx] : null; |
| } |
| |
| @Override |
| public @Nullable RStore<?> getData() { |
| return (this.dataSlotIdx >= 0 && this.slotValues[this.dataSlotIdx] != null) ? |
| this.slotValues[this.dataSlotIdx].getData() : null; |
| } |
| |
| @Override |
| public RCharacterStore getNames() { |
| return this.slotNames; |
| } |
| |
| @Override |
| public String getName(final int idx) { |
| return this.slotNames.getChar(idx); |
| } |
| |
| @Override |
| public String getName(final long idx) { |
| return this.slotNames.getChar(idx); |
| } |
| |
| @Override |
| public CombinedRElement get(final int idx) { |
| return this.slotValues[idx]; |
| } |
| |
| @Override |
| public CombinedRElement get(final long idx) { |
| if (idx < 0 || idx >= this.slotValues.length) { |
| throw new IndexOutOfBoundsException(Long.toString(idx)); |
| } |
| return this.slotValues[(int) idx]; |
| } |
| |
| @Override |
| public CombinedRElement get(final String name) { |
| final int idx= this.slotNames.indexOf(name, 0); |
| if (idx >= 0) { |
| return this.slotValues[idx]; |
| } |
| throw new IllegalArgumentException(); |
| } |
| |
| |
| @Override |
| public int getElementType() { |
| return R_GENERAL_VARIABLE; |
| } |
| |
| @Override |
| public boolean hasModelChildren(final @Nullable LtkModelElementFilter filter) { |
| if (filter == null) { |
| return (this.slotValues.length > 0); |
| } |
| else { |
| for (final BasicCombinedRElement component : this.slotValues) { |
| if (filter.include(component)) { |
| return true; |
| } |
| } |
| return false; |
| } |
| } |
| |
| @Override |
| public List<? extends CombinedRElement> getModelChildren(final @Nullable LtkModelElementFilter filter) { |
| if (filter == null) { |
| return ImCollections.newList(this.slotValues); |
| } |
| else { |
| final List<BasicCombinedRElement> list= new ArrayList<>(); |
| for (final BasicCombinedRElement component : this.slotValues) { |
| if (filter.include(component)) { |
| list.add(component); |
| } |
| } |
| return list; |
| } |
| } |
| |
| } |