/// <summary>
/// 访问表示方法调用的节点
/// </summary>
/// <param name="node">方法调用节点</param>
/// <returns></returns>
public virtual Expression VisitMethodCall(MethodCallExpression node)
{
Type type = node.Method.ReflectedType != null ? node.Method.ReflectedType : node.Method.DeclaringType;
string methodName = string.Empty;
if (type == typeof(SqlMethod) || type == typeof(Guid))
{
methodName = "VisitSQL";
}
else if (type == typeof(string) || node.Method.Name == "ToString")
{
methodName = "VisitSTR";
}
else if (type == typeof(Enumerable) || typeof(IEnumerable).IsAssignableFrom(type))
{
methodName = "VisitENM";
}
if (_typeRuntime == null)
{
_typeRuntime = new VistorTypeRuntimeInfo(this.GetType());
}
MemberInvokerBase invoker = _typeRuntime.GetInvoker(methodName + node.Method.Name);
if (invoker != null)
{
object exp = invoker.Invoke(this, new object[] { node });
return(exp as Expression);
}
throw new XFrameworkException("{0}.{1} is not supported.", node.Method.DeclaringType, node.Method.Name);
}
/// <summary>
/// 访问表示字段或者属性的属性的节点 a.Name.Length
/// </summary>
public virtual Expression VisitMemberMember(MemberExpression node)
{
Type type = node.Expression.Type;
string methodName = string.Empty;
if (type == typeof(string))
{
methodName = "VisitSTR";
}
if (_typeRuntime == null)
{
_typeRuntime = new VistorTypeRuntimeInfo(this.GetType());
}
MemberInvokerBase invoker = _typeRuntime.GetInvoker(methodName + node.Member.Name);
if (invoker != null)
{
object exp = invoker.Invoke(this, new object[] { node });
return(exp as Expression);
}
throw new XFrameworkException("{0}.{1} is not supported.", node.Member.DeclaringType, node.Member.Name);
}
