拨号器（通过Dialyxir）警告；但这个值是无与伦比的；来自苦艾酒（GraphQL）路线的“前进”命令。如何解决？

我收到一个透析器错误，关于不匹配的返回，我不知道如何正确处理

mix dialyzer --quiet
lib/my_app_web/router.ex:1:no_return
Function __checks__/0 has no local return.
________________________________________________________________________________
lib/my_app_web/router.ex:21:unmatched_return
The expression produces a value of type:

%{
  :adapter => _,
  :before_send => _,
  :content_type => _,
  :context => _,
  :document_providers => _,
  :json_codec => _,
  :log_level => _,
  :no_query_message => _,
  :pipeline => _,
  :pubsub => _,
  :raw_options => Keyword.t(),
  :schema_mod => atom(),
  :serializer => _
}

but this value is unmatched.

________________________________________________________________________________
lib/my_app_web/router.ex:24:unmatched_return
The expression produces a value of type:

%{
  :adapter => _,
  :additional_pipeline => _,
  :assets => _,
  :before_send => _,
  :content_type => _,
  :context => _,
  :default_headers => _,
  :default_url => _,
  :document_providers => _,
  :interface => _,
  :json_codec => _,
  :log_level => _,
  :no_query_message => _,
  :pipeline => {Absinthe.Plug.GraphiQL, :pipeline},
  :pubsub => _,
  :raw_options => [{_, _}],
  :schema_mod => atom(),
  :serializer => _,
  :socket => _,
  :socket_url => _
}

but this value is unmatched.

我的

mix.exs

如下所示：

  def project do
    [
      app: :my_app,
      version: "0.1.0",
      elixir: "1.9.4",
      elixirc_paths: elixirc_paths(Mix.env()),
      compilers: [:phoenix, :gettext] ++ Mix.compilers(),
      start_permanent: Mix.env() == :prod,
      dialyzer: [
        plt_add_deps: :transitive,
        flags: [:error_handling, :race_conditions, :unmatched_returns, :underspecs]
      ],
      aliases: aliases(),
      deps: deps()
    ]
  end

defmodule MyAppWeb.Router do
  use MyAppWeb, :router

  pipeline :browser do
    plug :accepts, ["html"]
    plug :fetch_session
    plug :fetch_flash
    plug :protect_from_forgery
    plug :put_secure_browser_headers
    plug MyAppWeb.Auth
  end

  pipeline :api do
    plug :accepts, ["json"]
  end

  # Other scopes may use custom stacks.
  scope "/api" do
    pipe_through :api

    forward "/graphql", Absinthe.Plug, schema: MyAppWeb.Schema.UserTypes

    if Mix.env() == :dev do
      forward "/graphiql", Absinthe.Plug.GraphiQL,
        schema: MyAppWeb.Schema.UserTypes,
        interface: :simple
    end
  end

  scope "/", MyAppWeb do
    pipe_through :browser

    resources "/users", UserController,
      only: [:index, :show, :new, :create, :edit, :delete, :update]

    resources "/sessions", SessionController, only: [:new, :create, :delete]

    get "/", PageController, :index, as: :home

    get "/*path", PageController, :index
  end
end

我的

router.ex

如下所示：

  def project do
    [
      app: :my_app,
      version: "0.1.0",
      elixir: "1.9.4",
      elixirc_paths: elixirc_paths(Mix.env()),
      compilers: [:phoenix, :gettext] ++ Mix.compilers(),
      start_permanent: Mix.env() == :prod,
      dialyzer: [
        plt_add_deps: :transitive,
        flags: [:error_handling, :race_conditions, :unmatched_returns, :underspecs]
      ],
      aliases: aliases(),
      deps: deps()
    ]
  end

defmodule MyAppWeb.Router do
  use MyAppWeb, :router

  pipeline :browser do
    plug :accepts, ["html"]
    plug :fetch_session
    plug :fetch_flash
    plug :protect_from_forgery
    plug :put_secure_browser_headers
    plug MyAppWeb.Auth
  end

  pipeline :api do
    plug :accepts, ["json"]
  end

  # Other scopes may use custom stacks.
  scope "/api" do
    pipe_through :api

    forward "/graphql", Absinthe.Plug, schema: MyAppWeb.Schema.UserTypes

    if Mix.env() == :dev do
      forward "/graphiql", Absinthe.Plug.GraphiQL,
        schema: MyAppWeb.Schema.UserTypes,
        interface: :simple
    end
  end

  scope "/", MyAppWeb do
    pipe_through :browser

    resources "/users", UserController,
      only: [:index, :show, :new, :create, :edit, :delete, :update]

    resources "/sessions", SessionController, only: [:new, :create, :delete]

    get "/", PageController, :index, as: :home

    get "/*path", PageController, :index
  end
end

我尝试了

\u=

技巧，但似乎不起作用。我认为使用不匹配的回报可能会有所帮助，但在这种情况下可能不会。我已经阅读了这个页面（），但我不认为它有助于解决这个问题

任何反馈或指导都将不胜感激

---

谢谢你

我发现问题来自以下几点：

引起警告的可能是Phoenix发行版或Absince.Plug.init/1规格

---

对于正在解决的时间问题，您可以使用Dialyxir的忽略警告功能：

请发布整个

路由器.ex

，以便我们可以检查透析器提到的第1、21、24行。@AlekseiMatiushkin我添加了整个路由器。第21行和第24行或

graphql

和

graphiql

行。也就是说，透析器不喜欢

forward

s。我从未使用过Absinth，但我会去检查他们的密码。