package interpreter;
 
import java.util.HashMap;
import java.util.Map;
 
public class Context {
	Map<String, Boolean> vars = new HashMap<String, Boolean>();
 
	boolean Lookup(String name) {
		if (vars.get(name) == null) return false;
		return vars.get(name).booleanValue();
 
	}
	void Assign(VariableExp exp, boolean val) {
		vars.put(exp.getName(), val);
	}
}