UseDefGraph.java

package udg.useDefGraph;

import java.util.List;

import misc.MultiHashMap;
import ast.ASTNode;

public class UseDefGraph
{

	// A UseDefGraph is a table indexed
	// by identifiers. Each table-entry
	// is a list of the UseOrDefRecords
	// of the identifier.

	MultiHashMap<String, UseOrDefRecord> useOrDefRecordTable = new MultiHashMap<String, UseOrDefRecord>();

	public MultiHashMap<String, UseOrDefRecord> getUseDefDict()
	{
		return useOrDefRecordTable;
	}

	public List<UseOrDefRecord> getUsesAndDefsForSymbol(String symbol)
	{
		return useOrDefRecordTable.get(symbol);
	}

	public void addDefinition(String identifier, ASTNode astNode)
	{
		add(identifier, astNode, true);
	}

	public void addUse(String identifier, ASTNode astNode)
	{
		add(identifier, astNode, false);
	}

	private void add(String identifier, ASTNode astNode, boolean isDef)
	{
		UseOrDefRecord record = new UseOrDefRecord(astNode, isDef);
		useOrDefRecordTable.add(identifier, record);
	}

}