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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.mapping;
import com.google.common.collect.Lists;
import cuchaz.enigma.utils.Utils;
import java.util.ArrayList;
import java.util.List;
import java.util.function.Function;
public class MethodDescriptor {
private List<TypeDescriptor> argumentDescs;
private TypeDescriptor returnDesc;
public MethodDescriptor(String desc) {
try {
this.argumentDescs = Lists.newArrayList();
int i = 0;
while (i < desc.length()) {
char c = desc.charAt(i);
if (c == '(') {
assert (this.argumentDescs.isEmpty());
assert (this.returnDesc == null);
i++;
} else if (c == ')') {
i++;
break;
} else {
String type = TypeDescriptor.parseFirst(desc.substring(i));
this.argumentDescs.add(new TypeDescriptor(type));
i += type.length();
}
}
this.returnDesc = new TypeDescriptor(TypeDescriptor.parseFirst(desc.substring(i)));
} catch (Exception ex) {
throw new IllegalArgumentException("Unable to parse method descriptor: " + desc, ex);
}
}
public MethodDescriptor(List<TypeDescriptor> argumentDescs, TypeDescriptor returnDesc) {
this.argumentDescs = argumentDescs;
this.returnDesc = returnDesc;
}
public List<TypeDescriptor> getArgumentDescs() {
return this.argumentDescs;
}
public TypeDescriptor getReturnDesc() {
return this.returnDesc;
}
@Override
public String toString() {
StringBuilder buf = new StringBuilder();
buf.append("(");
for (TypeDescriptor desc : this.argumentDescs) {
buf.append(desc);
}
buf.append(")");
buf.append(this.returnDesc);
return buf.toString();
}
public Iterable<TypeDescriptor> types() {
List<TypeDescriptor> descs = Lists.newArrayList();
descs.addAll(this.argumentDescs);
descs.add(this.returnDesc);
return descs;
}
@Override
public boolean equals(Object other) {
return other instanceof MethodDescriptor && equals((MethodDescriptor) other);
}
public boolean equals(MethodDescriptor other) {
return this.argumentDescs.equals(other.argumentDescs) && this.returnDesc.equals(other.returnDesc);
}
@Override
public int hashCode() {
return Utils.combineHashesOrdered(this.argumentDescs.hashCode(), this.returnDesc.hashCode());
}
public boolean hasClass(ClassEntry classEntry) {
for (TypeDescriptor desc : types()) {
if (desc.containsType() && desc.getOwnerEntry().equals(classEntry)) {
return true;
}
}
return false;
}
public MethodDescriptor remap(Function<String, String> remapper) {
List<TypeDescriptor> argumentDescs = new ArrayList<>(this.argumentDescs.size());
for (TypeDescriptor desc : this.argumentDescs) {
argumentDescs.add(desc.remap(remapper));
}
return new MethodDescriptor(argumentDescs, returnDesc.remap(remapper));
}
}
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