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/*******************************************************************************
* Copyright (c) 2015 Jeff Martin.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the GNU Lesser General Public
* License v3.0 which accompanies this distribution, and is available at
* http://www.gnu.org/licenses/lgpl.html
*
* Contributors:
* Jeff Martin - initial API and implementation
******************************************************************************/
package cuchaz.enigma.analysis;
import java.util.Map;
import java.util.Set;
import com.google.common.collect.Maps;
import com.google.common.collect.Sets;
import cuchaz.enigma.mapping.BehaviorEntry;
import cuchaz.enigma.mapping.ClassEntry;
import cuchaz.enigma.mapping.EntryFactory;
import cuchaz.enigma.mapping.MethodEntry;
import cuchaz.enigma.mapping.MethodMapping;
public class RelatedMethodChecker {
private JarIndex m_jarIndex;
private Map<Set<MethodEntry>,String> m_deobfNamesByGroup;
private Map<MethodEntry,String> m_deobfNamesByObfMethod;
private Map<MethodEntry,Set<MethodEntry>> m_groupsByObfMethod;
private Set<Set<MethodEntry>> m_inconsistentGroups;
public RelatedMethodChecker(JarIndex jarIndex) {
m_jarIndex = jarIndex;
m_deobfNamesByGroup = Maps.newHashMap();
m_deobfNamesByObfMethod = Maps.newHashMap();
m_groupsByObfMethod = Maps.newHashMap();
m_inconsistentGroups = Sets.newHashSet();
}
public void checkMethod(ClassEntry classEntry, MethodMapping methodMapping) {
// TEMP: disable the expensive check for now, maybe we can optimize it later, or just use it for debugging
if (true) return;
BehaviorEntry obfBehaviorEntry = EntryFactory.getObfBehaviorEntry(classEntry, methodMapping);
if (!(obfBehaviorEntry instanceof MethodEntry)) {
// only methods have related implementations
return;
}
MethodEntry obfMethodEntry = (MethodEntry)obfBehaviorEntry;
String deobfName = methodMapping.getDeobfName();
m_deobfNamesByObfMethod.put(obfMethodEntry, deobfName);
// have we seen this method's group before?
Set<MethodEntry> group = m_groupsByObfMethod.get(obfMethodEntry);
if (group == null) {
// no, compute the group and save the name
group = m_jarIndex.getRelatedMethodImplementations(obfMethodEntry);
m_deobfNamesByGroup.put(group, deobfName);
assert(group.contains(obfMethodEntry));
for (MethodEntry relatedMethodEntry : group) {
m_groupsByObfMethod.put(relatedMethodEntry, group);
}
}
// check the name
if (!sameName(m_deobfNamesByGroup.get(group), deobfName)) {
m_inconsistentGroups.add(group);
}
}
private boolean sameName(String a, String b) {
if (a == null && b == null) {
return true;
} else if (a != null && b != null) {
return a.equals(b);
}
return false;
}
public boolean hasProblems() {
return m_inconsistentGroups.size() > 0;
}
public String getReport() {
StringBuilder buf = new StringBuilder();
buf.append(m_inconsistentGroups.size());
buf.append(" groups of methods related by inheritance and/or interfaces have different deobf names!\n");
for (Set<MethodEntry> group : m_inconsistentGroups) {
buf.append("\tGroup with ");
buf.append(group.size());
buf.append(" methods:\n");
for (MethodEntry methodEntry : group) {
buf.append("\t\t");
buf.append(methodEntry.toString());
buf.append(" => ");
buf.append(m_deobfNamesByObfMethod.get(methodEntry));
buf.append("\n");
}
}
return buf.toString();
}
}
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