List<Statement> statements = new ArrayList<Statement>();
            statements.add(new ExpressionStatement(new BinaryExpression(new FieldExpression(inputsField), ASSIGN, new VariableExpression("inputs"))));
            statements.add(new ExpressionStatement(new BinaryExpression(new FieldExpression(ruleFactoryField), ASSIGN, new VariableExpression("ruleFactory"))));
            node.addMethod(new MethodNode("makeRule",

    }

    @Override
    public void visitAttributeExpression(AttributeExpression attributeExpression) {
        restrict(attributeExpression);
    }

    @Override
    public void visitFieldExpression(FieldExpression expression) {
        restrict(expression);
    }

    @Override
    public void visitMethodPointerExpression(MethodPointerExpression expression) {
        restrict(expression);
    }

import org.codehaus.groovy.ast.expr.DeclarationExpression;
import org.codehaus.groovy.ast.expr.ElvisOperatorExpression;
import org.codehaus.groovy.ast.expr.Expression;
import org.codehaus.groovy.ast.expr.FieldExpression;
import org.codehaus.groovy.ast.expr.GStringExpression;
import org.codehaus.groovy.ast.expr.ListExpression;
import org.codehaus.groovy.ast.expr.MapEntryExpression;
import org.codehaus.groovy.ast.expr.MapExpression;