| /* |
| * Copyright 2000-2014 JetBrains s.r.o. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package org.jetbrains.jps.builders.java.dependencyView; |
| |
| import com.intellij.openapi.util.Pair; |
| import org.jetbrains.org.objectweb.asm.Opcodes; |
| |
| import java.util.*; |
| |
| /** |
| * @author: db |
| * Date: 01.03.11 |
| */ |
| abstract class Difference { |
| |
| public static boolean weakerAccess(final int me, final int then) { |
| return ((me & Opcodes.ACC_PRIVATE) > 0 && (then & Opcodes.ACC_PRIVATE) == 0) || |
| ((me & Opcodes.ACC_PROTECTED) > 0 && (then & Opcodes.ACC_PUBLIC) > 0) || |
| (isPackageLocal(me) && (then & Opcodes.ACC_PROTECTED) > 0); |
| } |
| |
| private static boolean isPackageLocal(final int access) { |
| return (access & (Opcodes.ACC_PRIVATE | Opcodes.ACC_PROTECTED | Opcodes.ACC_PUBLIC)) == 0; |
| } |
| |
| public static final int NONE = 0; |
| public static final int ACCESS = 1; |
| public static final int TYPE = 2; |
| public static final int VALUE = 4; |
| public static final int SIGNATURE = 8; |
| public static final int SUPERCLASS = 16; |
| public static final int USAGES = 32; |
| |
| public interface Specifier<T> { |
| Collection<T> added(); |
| |
| Collection<T> removed(); |
| |
| Collection<Pair<T, Difference>> changed(); |
| |
| boolean unchanged(); |
| } |
| |
| public static <T> Specifier<T> make(final Set<T> past, final Set<T> now) { |
| if (past == null) { |
| final Collection<T> _now = Collections.unmodifiableCollection(now); |
| return new Specifier<T>() { |
| public Collection<T> added() { |
| return _now; |
| } |
| |
| public Collection<T> removed() { |
| return Collections.emptyList(); |
| } |
| |
| public Collection<Pair<T, Difference>> changed() { |
| return Collections.emptyList(); |
| } |
| |
| public boolean unchanged() { |
| return false; |
| } |
| }; |
| } |
| |
| final Set<T> added = new HashSet<T>(now); |
| |
| added.removeAll(past); |
| |
| final Set<T> removed = new HashSet<T>(past); |
| |
| removed.removeAll(now); |
| |
| final Set<Pair<T, Difference>> changed = new HashSet<Pair<T, Difference>>(); |
| final Set<T> intersect = new HashSet<T>(past); |
| final Map<T, T> nowMap = new HashMap<T, T>(); |
| |
| for (T s : now) { |
| if (intersect.contains(s)) { |
| nowMap.put(s, s); |
| } |
| } |
| |
| intersect.retainAll(now); |
| |
| for (T x : intersect) { |
| final T y = nowMap.get(x); |
| |
| if (x instanceof Proto) { |
| final Proto px = (Proto)x; |
| final Proto py = (Proto)y; |
| final Difference diff = py.difference(px); |
| |
| if (!diff.no()) { |
| changed.add(Pair.create(x, diff)); |
| } |
| } |
| } |
| |
| return new Specifier<T>() { |
| public Collection<T> added() { |
| return added; |
| } |
| |
| public Collection<T> removed() { |
| return removed; |
| } |
| |
| public Collection<Pair<T, Difference>> changed() { |
| return changed; |
| } |
| |
| public boolean unchanged() { |
| return changed.isEmpty() && added.isEmpty() && removed.isEmpty(); |
| } |
| }; |
| } |
| |
| public abstract int base(); |
| |
| public abstract boolean no(); |
| |
| public abstract boolean weakedAccess(); |
| |
| public abstract int addedModifiers(); |
| |
| public abstract int removedModifiers(); |
| |
| public abstract boolean packageLocalOn(); |
| |
| public abstract boolean hadValue(); |
| } |