refactored jar,translation index. fixed bug with field renaming when fields are shadowed by subclasses

1 files changed, 126 insertions, 0 deletions

diff --git a/src/cuchaz/enigma/analysis/TranslationIndex.java b/src/cuchaz/enigma/analysis/TranslationIndex.java
new file mode 100644
index 0000000..5311ec7
--- /dev/null
+++ b/src/cuchaz/enigma/analysis/TranslationIndex.java
@@ -0,0 +1,126 @@
+/*******************************************************************************
+ * Copyright (c) 2014 Jeff Martin.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the GNU Public License v3.0
+ * which accompanies this distribution, and is available at
+ * http://www.gnu.org/licenses/gpl.html
+ * 
+ * Contributors:
+ *     Jeff Martin - initial API and implementation
+ ******************************************************************************/
+package cuchaz.enigma.analysis;
+
+import java.io.Serializable;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+
+import javassist.bytecode.Descriptor;
+
+import com.google.common.collect.HashMultimap;
+import com.google.common.collect.Lists;
+import com.google.common.collect.Maps;
+import com.google.common.collect.Multimap;
+
+public class TranslationIndex implements Serializable
+{
+        private static final long serialVersionUID = 738687982126844179L;
+        
+        private Map<String,String> m_superclasses;
+        private Multimap<String,String> m_fields;
+        
+        public TranslationIndex( )
+        {
+                m_superclasses = Maps.newHashMap();
+                m_fields = HashMultimap.create();
+        }
+        
+        public TranslationIndex( TranslationIndex other )
+        {
+                m_superclasses = Maps.newHashMap( other.m_superclasses );
+                m_fields = HashMultimap.create( other.m_fields );
+        }
+        
+        public void addSuperclass( String className, String superclassName )
+        {
+                className = Descriptor.toJvmName( className );
+                superclassName = Descriptor.toJvmName( superclassName );
+                
+                if( className.equals( superclassName ) )
+                {
+                        throw new IllegalArgumentException( "Class cannot be its own superclass! " + className );
+                }
+                
+                if( !isJre( className ) && !isJre( superclassName ) )
+                {
+                        m_superclasses.put( className, superclassName );
+                }
+        }
+        
+        public void addField( String className, String fieldName )
+        {
+                m_fields.put( className, fieldName );
+        }
+        
+        public void renameClasses( Map<String,String> renames )
+        {
+                EntryRenamer.renameClassesInMap( renames, m_superclasses );
+                EntryRenamer.renameClassesInMultimap( renames, m_fields );
+        }
+        
+        public String getSuperclassName( String className )
+        {
+                return m_superclasses.get( className );
+        }
+        
+        public List<String> getAncestry( String className )
+        {
+                List<String> ancestors = new ArrayList<String>();
+                while( className != null )
+                {
+                        className = getSuperclassName( className );
+                        if( className != null )
+                        {
+                                ancestors.add( className );
+                        }
+                }
+                return ancestors;
+        }
+        
+        public List<String> getSubclassNames( String className )
+        {
+                // linear search is fast enough for now
+                List<String> subclasses = Lists.newArrayList();
+                for( Map.Entry<String,String> entry : m_superclasses.entrySet() )
+                {
+                        String subclass = entry.getKey();
+                        String superclass = entry.getValue();
+                        if( className.equals( superclass ) )
+                        {
+                                subclasses.add( subclass );
+                        }
+                }
+                return subclasses;
+        }
+        
+        public void getSubclassNamesRecursively( Set<String> out, String className )
+        {
+                for( String subclassName : getSubclassNames( className ) )
+                {
+                        out.add( subclassName );
+                        getSubclassNamesRecursively( out, subclassName );
+                }
+        }
+        
+        public boolean containsField( String className, String fieldName )
+        {
+                return m_fields.containsEntry( className, fieldName );
+        }
+        
+        private boolean isJre( String className )
+        {
+                return className.startsWith( "java/" )
+                        || className.startsWith( "javax/" );
+        }
+}