/
AllocationSite.java
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/
AllocationSite.java
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/*
* This file is part of the Jikes RVM project (http://jikesrvm.org).
*
* This file is licensed to You under the Common Public License (CPL);
* You may not use this file except in compliance with the License. You
* may obtain a copy of the License at
*
* http://www.opensource.org/licenses/cpl1.0.php
*
* See the COPYRIGHT.txt file distributed with this work for information
* regarding copyright ownership.
*/
package org.mmtk.harness.lang.runtime;
import java.util.ArrayList;
import org.mmtk.harness.lang.parser.Token;
/**
* Information about allocation sites in a script. Used when debugging to
* identify objects.
*/
public class AllocationSite {
/**
* The global collection of allocation sites.
*/
private static final ArrayList<AllocationSite> sites = new ArrayList<AllocationSite>();
/**
* Retrieve an allocation site by ID.
* @param id
* @return
*/
public static AllocationSite getSite(int id) {
return sites.get(id);
}
private final int id;
private final int column;
private final int line;
/**
* Create an allocation site for a given source code line/column.
* @param line
* @param column
*/
public AllocationSite(int line, int column) {
this.id = sites.size();
sites.add(this);
this.line = line;
this.column = column;
}
/**
* An anonymous allocation site
*/
public AllocationSite() {
this(0,0);
}
/**
* An allocation site for a given script token.
* @param token
*/
public AllocationSite(Token token) {
this(token.beginLine,token.beginColumn);
}
public String toString() {
return String.format("%d:%d", line, column);
}
public int getId() {
return id;
}
public int getColumn() {
return column;
}
public int getLine() {
return line;
}
}