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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
* <p>
* Contributors:
* Jeff Martin - initial API and implementation
******************************************************************************/
package cuchaz.enigma.analysis;
import java.util.Arrays;
import java.util.List;
import java.util.Objects;
import cuchaz.enigma.translation.Translatable;
import cuchaz.enigma.translation.TranslateResult;
import cuchaz.enigma.translation.Translator;
import cuchaz.enigma.translation.mapping.EntryMap;
import cuchaz.enigma.translation.mapping.EntryMapping;
import cuchaz.enigma.translation.mapping.EntryResolver;
import cuchaz.enigma.translation.representation.entry.ClassEntry;
import cuchaz.enigma.translation.representation.entry.Entry;
import cuchaz.enigma.translation.representation.entry.MethodEntry;
public class EntryReference<E extends Entry<?>, C extends Entry<?>> implements Translatable {
private static final List<String> CONSTRUCTOR_NON_NAMES = Arrays.asList("this", "super", "static");
public final E entry;
public final C context;
public final ReferenceTargetType targetType;
private final boolean declaration; // if the ref goes to the decl of the item. when true context == null
private final boolean sourceName;
public static <E extends Entry<?>, C extends Entry<?>> EntryReference<E, C> declaration(E entry, String sourceName) {
return new EntryReference<>(entry, sourceName, null, ReferenceTargetType.none(), true);
}
public EntryReference(E entry, String sourceName) {
this(entry, sourceName, null);
}
public EntryReference(E entry, String sourceName, C context) {
this(entry, sourceName, context, ReferenceTargetType.none());
}
public EntryReference(E entry, String sourceName, C context, ReferenceTargetType targetType) {
this(entry, sourceName, context, targetType, false);
}
protected EntryReference(E entry, String sourceName, C context, ReferenceTargetType targetType, boolean declaration) {
if (entry == null) {
throw new IllegalArgumentException("Entry cannot be null!");
}
this.entry = entry;
this.context = context;
this.targetType = targetType;
this.declaration = declaration;
this.sourceName = sourceName != null && !sourceName.isEmpty() &&
!(entry instanceof MethodEntry && ((MethodEntry) entry).isConstructor() && CONSTRUCTOR_NON_NAMES.contains(sourceName));
}
public EntryReference(E entry, C context, EntryReference<E, C> other) {
this.entry = entry;
this.context = context;
this.sourceName = other.sourceName;
this.targetType = other.targetType;
this.declaration = other.declaration;
}
public ClassEntry getLocationClassEntry() {
if (context != null) {
return context.getContainingClass();
}
return entry.getContainingClass();
}
public boolean isNamed() {
return this.sourceName;
}
/**
* Returns whether this refers to the declaration of an entry.
*/
public boolean isDeclaration() {
return this.declaration;
}
public Entry<?> getNameableEntry() {
if (entry instanceof MethodEntry && ((MethodEntry) entry).isConstructor()) {
// renaming a constructor really means renaming the class
return entry.getContainingClass();
}
return entry;
}
public String getNameableName() {
return getNameableEntry().getName();
}
@Override
public int hashCode() {
if (context != null) {
return Objects.hash(entry.hashCode(), context.hashCode());
}
return entry.hashCode() ^ Boolean.hashCode(this.declaration);
}
@Override
public boolean equals(Object other) {
return other instanceof EntryReference && equals((EntryReference<?, ?>) other);
}
public boolean equals(EntryReference<?, ?> other) {
return other != null
&& Objects.equals(entry, other.entry)
&& Objects.equals(context, other.context)
&& declaration == other.declaration;
}
@Override
public String toString() {
StringBuilder buf = new StringBuilder();
buf.append(entry);
if (declaration) {
buf.append("'s declaration");
return buf.toString();
}
if (context != null) {
buf.append(" called from ");
buf.append(context);
}
if (targetType != null && targetType.getKind() != ReferenceTargetType.Kind.NONE) {
buf.append(" on target of type ");
buf.append(targetType);
}
return buf.toString();
}
@Override
public TranslateResult<EntryReference<E, C>> extendedTranslate(Translator translator, EntryResolver resolver, EntryMap<EntryMapping> mappings) {
return translator.extendedTranslate(this.entry).map(e -> new EntryReference<>(e, translator.translate(context), this));
}
}
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