将TableQuery对象作为参数传递会在Slick/Scala中导致奇怪的类型错误，但在注入时不会

import slick.jdbc.H2Profile.api._
import scala.concurrent.ExecutionContext.Implicits.global

case class User(id: Int, name: String)

class Users(tag: Tag) extends Table[User](tag, "USERS") {
  def id = column[Int]("ID", O.PrimaryKey)
  def name = column[String]("NAME")
  def * = (id, name) <> (User.tupled, User.unapply)
}

val users = TableQuery[Users]

def findUserById(query: TableQuery[Users], id: Int): DBIO[Option[User]] = {
  query.filter(_.id === id).result.headOption
}

val result = db.run(findUserById(users, 1))

import slick.jdbc.H2Profile.api._
import scala.concurrent.ExecutionContext.Implicits.global

case class User(id: Int, name: String)

class Users(tag: Tag) extends Table[User](tag, "USERS") {
  def id = column[Int]("ID", O.PrimaryKey)
  def name = column[String]("NAME")
  def * = (id, name) <> (User.tupled, User.unapply)
}

val users = TableQuery[Users]

trait TableQueryContext[T <: Table[_]] {
  type Query = TableQuery[T]
}

object TableQueryContext {
  implicit val usersContext: TableQueryContext[Users] = new TableQueryContext[Users] {}
}

def findUserById[T <: Table[_]](query: TableQueryContext[T]#Query, id: Int)(implicit ctx: TableQueryContext[T]): DBIO[Option[User]] = {
  query.filter(_.id === id).result.headOption
}

val result = db.run(findUserById(users, 1))