package com.coderising.jvm.attr;
import com.coderising.jvm.loader.ByteCodeIterator;
import java.util.ArrayList;
import java.util.List;
public class LineNumberTable extends AttributeInfo {
List<LineNumberItem> items = new ArrayList<LineNumberItem>();
public LineNumberTable(int attrNameIndex, int attrLen) {
super(attrNameIndex, attrLen);
}
public static LineNumberTable parse(ByteCodeIterator iter) {
int attributeNameIndex = iter.nextU2ToInt();
int attributeLen = iter.nextU4ToInt();
int itemLen = iter.nextU2ToInt();
LineNumberTable numberTable = new LineNumberTable(attributeNameIndex, attributeLen);
for (int i = 0; i < itemLen; i++) {
LineNumberItem item = new LineNumberItem();
item.setStartPC(iter.nextU2ToInt());
item.setLineNum(iter.nextU2ToInt());
numberTable.addLineNumberItem(item);
}
return numberTable;
}
public void addLineNumberItem(LineNumberItem item) {
this.items.add(item);
}
private static class LineNumberItem {
int startPC;
int lineNum;
public int getStartPC() {
return startPC;
}
public void setStartPC(int startPC) {
this.startPC = startPC;
}
public int getLineNum() {
return lineNum;
}
public void setLineNum(int lineNum) {
this.lineNum = lineNum;
}
}
}