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/*
* 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.java.decompiler.struct.gen;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
public class MethodDescriptor {
public VarType[] params;
public VarType ret;
public static MethodDescriptor parseDescriptor(String mdescr) {
MethodDescriptor md = new MethodDescriptor();
List<String> lst = new ArrayList<String>();
String[] pars = mdescr.split("[()]");
String par = pars[1];
int indexFrom = -1, ind, index = 0;
int len = par.length();
for (; index < len; index++) {
switch (par.charAt(index)) {
case '[':
if (indexFrom < 0) {
indexFrom = index;
}
break;
case 'L':
ind = par.indexOf(";", index);
lst.add(par.substring(indexFrom < 0 ? index : indexFrom, ind + 1));
index = ind;
indexFrom = -1;
break;
default:
lst.add(par.substring(indexFrom < 0 ? index : indexFrom, index + 1));
indexFrom = -1;
}
}
lst.add(pars[2]);
md.params = new VarType[lst.size() - 1];
int i = 0;
for (; i < lst.size() - 1; i++) {
md.params[i] = new VarType(lst.get(i));
}
md.ret = new VarType(lst.get(i));
return md;
}
public String getDescriptor() {
String res = "(";
for (int j = 0; j < params.length; j++) {
res += params[j].toString();
}
res += ")" + ret.toString();
return res;
}
@Override
public boolean equals(Object o) {
if (o == this) return true;
if (o == null || !(o instanceof MethodDescriptor)) return false;
MethodDescriptor md = (MethodDescriptor)o;
return ret.equals(md.ret) && Arrays.equals(params, md.params);
}
@Override
public int hashCode() {
int result = ret.hashCode();
result = 31 * result + params.length;
return result;
}
}
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