mirror of
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122 lines
3.0 KiB
Java
122 lines
3.0 KiB
Java
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/* ========================================================================
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* PlantUML : a free UML diagram generator
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* ========================================================================
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*
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* Project Info: http://plantuml.com
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*
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* If you like this project or if you find it useful, you can support us at:
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*
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* http://plantuml.com/patreon (only 1$ per month!)
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* http://plantuml.com/paypal
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*
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* This file is part of Smetana.
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* Smetana is a partial translation of Graphviz/Dot sources from C to Java.
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*
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* (C) Copyright 2009-2020, Arnaud Roques
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*
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* This translation is distributed under the same Licence as the original C program.
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*
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* THE ACCOMPANYING PROGRAM IS PROVIDED UNDER THE TERMS OF THIS ECLIPSE PUBLIC
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* LICENSE ("AGREEMENT"). [Eclipse Public License - v 1.0]
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*
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* ANY USE, REPRODUCTION OR DISTRIBUTION OF THE PROGRAM CONSTITUTES
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* RECIPIENT'S ACCEPTANCE OF THIS AGREEMENT.
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*
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* You may obtain a copy of the License at
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*
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* http://www.eclipse.org/legal/epl-v10.html
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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*/
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package smetana.core;
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import java.util.ArrayList;
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import java.util.List;
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public class CStar<O> extends UnsupportedC {
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private final Class cl;
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private final List<O> data;
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private final int offset;
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// public CStar(int size, Class cl) {
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// this.data = new ArrayList<O>();
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// this.offset = 0;
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// this.cl = cl;
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// realloc(size);
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// }
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public static <O> CStar ALLOC__(int size, Class<O> cl) {
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final CStar<O> result = new CStar<O>(new ArrayList<O>() , 0, cl);
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result.reallocWithStructure(size);
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return result;
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}
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public static <O> CStar REALLOC__(int size, CStar<O> old, Class<O> cl) {
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if (old==null) {
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return ALLOC__(size, cl);
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}
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old.reallocWithStructure(size);
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return old;
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}
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private CStar(List<O> data, int offset, Class cl) {
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this.data = data;
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this.offset = offset;
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this.cl = cl;
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}
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public CStar<O> plus_(int delta) {
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return new CStar(data, offset + delta, cl);
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}
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public int minus_(CStar<O> other) {
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if (this.data != other.data) {
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throw new IllegalArgumentException();
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}
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return this.offset - other.offset;
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}
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public O get__(int i) {
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return data.get(i + offset);
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}
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private void reallocWithStructure(int size) {
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if (offset != 0) {
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throw new IllegalStateException();
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}
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try {
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for (int i = 0; i < size; i++) {
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data.add((O) cl.newInstance());
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}
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} catch (Exception e) {
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e.printStackTrace();
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throw new UnsupportedOperationException();
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}
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}
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private void reallocWithoutData(int size) {
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if (offset != 0) {
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throw new IllegalStateException();
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}
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try {
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for (int i = 0; i < size; i++) {
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data.add(null);
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}
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} catch (Exception e) {
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e.printStackTrace();
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throw new UnsupportedOperationException();
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}
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}
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}
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