package no.uio.ifi.refaktor.analyze;

import org.eclipse.jdt.core.dom.ASTNode;
import org.eclipse.jdt.core.dom.ASTVisitor;
import org.eclipse.jdt.core.dom.IBinding;
import org.eclipse.jdt.core.dom.IVariableBinding;
import org.eclipse.jdt.core.dom.SimpleName;

public class VariableBindingFinder extends ASTVisitor {
	private String bindingKey;
	private boolean bindingFound;
	private IVariableBinding variableBinding;

	public VariableBindingFinder(String bindingKey) {
		this.bindingKey = bindingKey;
		bindingFound = false;
	}

	@Override
	public boolean visit(SimpleName node) {
		IBinding binding = node.resolveBinding();

		if (binding instanceof IVariableBinding && binding.getKey().equals(bindingKey)) {
			variableBinding = (IVariableBinding) binding;
			bindingFound = true;
		}

		return false;
	}
	
	@Override
	public boolean preVisit2(ASTNode node) {
		return !bindingFound;
	}
	
	public IVariableBinding getVariableBinding() {
		return variableBinding;
	}
}