org.jetbrains.java.decompiler.struct.attr.StructLocalVariableTableAttribute Maven / Gradle / Ivy
/*
* 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.attr;
import org.jetbrains.java.decompiler.struct.consts.ConstantPool;
import org.jetbrains.java.decompiler.util.DataInputFullStream;
import java.io.IOException;
import java.util.Collections;
import java.util.HashMap;
import java.util.Map;
/*
u2 local_variable_table_length;
local_variable {
u2 start_pc;
u2 length;
u2 name_index;
u2 descriptor_index;
u2 index;
}
*/
public class StructLocalVariableTableAttribute extends StructGeneralAttribute {
private Map mapVarNames = Collections.emptyMap();
@Override
public void initContent(ConstantPool pool) throws IOException {
DataInputFullStream data = stream();
int len = data.readUnsignedShort();
if (len > 0) {
mapVarNames = new HashMap(len);
for (int i = 0; i < len; i++) {
data.discard(4);
int nameIndex = data.readUnsignedShort();
data.discard(2);
int varIndex = data.readUnsignedShort();
mapVarNames.put(varIndex, pool.getPrimitiveConstant(nameIndex).getString());
}
}
else {
mapVarNames = Collections.emptyMap();
}
}
public void addLocalVariableTable(StructLocalVariableTableAttribute attr) {
mapVarNames.putAll(attr.getMapVarNames());
}
public Map getMapVarNames() {
return mapVarNames;
}
}