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marksteve/_redux.ex

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Last active June 4, 2016 03:38
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  1. marksteve revised this gist Jun 4, 2016. 1 changed file with 0 additions and 1 deletion.
    1 change: 0 additions & 1 deletion example.ex
    View file
    Original file line number Diff line number Diff line change
    @@ -38,7 +38,6 @@ defmodule Example do
    {_, store} = store |> subscribe(&subscriber/1)
    store = store |> dispatch(%{ type: :add, value: 10 })
    {unsubscribe, store} = store |> subscribe(&another_subscriber/1)
    {_, store} = store |> subscribe(fn(x) -> IO.inspect(get_state(x)) end)
    store = store |> dispatch(%{ type: :add, value: 20 })
    store = store |> unsubscribe.()
    store = store |> dispatch(%{ type: :add, value: 10 })
  2. marksteve revised this gist Jun 4, 2016. 1 changed file with 2 additions and 1 deletion.
    3 changes: 2 additions & 1 deletion example.ex
    View file
    Original file line number Diff line number Diff line change
    @@ -38,8 +38,9 @@ defmodule Example do
    {_, store} = store |> subscribe(&subscriber/1)
    store = store |> dispatch(%{ type: :add, value: 10 })
    {unsubscribe, store} = store |> subscribe(&another_subscriber/1)
    {_, store} = store |> subscribe(fn(x) -> IO.inspect(get_state(x)) end)
    store = store |> dispatch(%{ type: :add, value: 20 })
    store = store |> unsubscribe.()
    store = store |> unsubscribe.()
    store = store |> dispatch(%{ type: :add, value: 10 })

    store
  3. marksteve revised this gist Jun 4, 2016. 2 changed files with 10 additions and 5 deletions.
    4 changes: 3 additions & 1 deletion _redux.ex
    View file
    Original file line number Diff line number Diff line change
    @@ -44,7 +44,9 @@ defmodule Redux do
    Subscribe to a store
    """
    def subscribe(store, subscriber) do
    store
    unsubscribe = fn(store) -> Map.put(store, :subscribers, store.subscribers -- [subscriber]) end
    store = store
    |> Map.put(:subscribers, store.subscribers ++ [subscriber])
    {unsubscribe, store}
    end
    end
    11 changes: 7 additions & 4 deletions example.ex
    View file
    Original file line number Diff line number Diff line change
    @@ -26,18 +26,21 @@ defmodule Example do
    Expected output:
    2
    subscriber: 12
    subscriber: 32
    another_subscriber: 32
    subscriber: 42
    another_subscriber: 42
    """
    def run do
    store = create_store(&reducer/2)

    store = store |> dispatch(%{ type: :set, value: 2 })
    IO.puts(store |> get_state())
    store = store |> subscribe(&subscriber/1)
    {_, store} = store |> subscribe(&subscriber/1)
    store = store |> dispatch(%{ type: :add, value: 10 })
    {unsubscribe, store} = store |> subscribe(&another_subscriber/1)
    store = store |> dispatch(%{ type: :add, value: 20 })
    store = store |> unsubscribe.()
    store = store |> dispatch(%{ type: :add, value: 10 })
    store = store |> subscribe(&another_subscriber/1)
    store = store |> dispatch(%{ type: :add, value: 30 })

    store
    end
  4. marksteve revised this gist Jun 3, 2016. 1 changed file with 0 additions and 1 deletion.
    1 change: 0 additions & 1 deletion _redux.ex
    View file
    Original file line number Diff line number Diff line change
    @@ -4,7 +4,6 @@ defmodule Redux do
    store = create_store fn state, action -> ... end
    store |> get_state()
    store |> subscribe(fn -> IO.puts get_state() end)
    store |> dispatch(%{ type: "publish" })
    """
  5. marksteve revised this gist Jun 3, 2016. 2 changed files with 5 additions and 5 deletions.
    4 changes: 2 additions & 2 deletions _redux.ex
    View file
    Original file line number Diff line number Diff line change
    @@ -36,7 +36,7 @@ defmodule Redux do
    end

    defp run_subscribers(store, [subscriber | subscribers]) do
    :ok = subscriber.(store)
    subscriber.(store)
    run_subscribers(store, subscribers)
    end
    defp run_subscribers(store, []), do: store
    @@ -48,4 +48,4 @@ defmodule Redux do
    store
    |> Map.put(:subscribers, store.subscribers ++ [subscriber])
    end
    end
    end
    6 changes: 3 additions & 3 deletions example.ex
    View file
    Original file line number Diff line number Diff line change
    @@ -14,12 +14,12 @@ defmodule Example do

    def subscriber(store) do
    state = get_state(store)
    :ok = IO.puts("subscriber: #{state}")
    IO.puts("subscriber: #{state}")
    end

    def another_subscriber(store) do
    state = get_state(store)
    :ok = IO.puts("another_subscriber: #{state}")
    IO.puts("another_subscriber: #{state}")
    end

    @doc """
    @@ -43,4 +43,4 @@ defmodule Example do
    end
    end

    Example.run
    Example.run
  6. marksteve revised this gist Jun 3, 2016. 1 changed file with 28 additions and 28 deletions.
    56 changes: 28 additions & 28 deletions example.ex
    View file
    Original file line number Diff line number Diff line change
    @@ -1,46 +1,46 @@
    defmodule Example do
    import Redux

    def reducer(state, action) do
    case action.type do
    :set ->
    action.value
    :add ->
    state + action.value
    _ ->
    state
    end
    end
    def reducer(state, action) do
    case action.type do
    :set ->
    action.value
    :add ->
    state + action.value
    _ ->
    state
    end
    end

    def subscriber(store) do
    state = get_state(store)
    :ok = IO.puts("subscriber: #{state}")
    def subscriber(store) do
    state = get_state(store)
    :ok = IO.puts("subscriber: #{state}")
    end

    def another_subscriber(store) do
    state = get_state(store)
    :ok = IO.puts("another_subscriber: #{state}")
    def another_subscriber(store) do
    state = get_state(store)
    :ok = IO.puts("another_subscriber: #{state}")
    end

    @doc """
    @doc """
    Expected output:
    2
    subscriber: 12
    subscriber: 42
    another_subscriber: 42
    2
    subscriber: 12
    subscriber: 42
    another_subscriber: 42
    """
    def run do
    store = create_store(&reducer/2)
    def run do
    store = create_store(&reducer/2)

    store = store |> dispatch(%{ type: :set, value: 2 })
    IO.puts(store |> get_state())
    store = store |> dispatch(%{ type: :set, value: 2 })
    IO.puts(store |> get_state())
    store = store |> subscribe(&subscriber/1)
    store = store |> dispatch(%{ type: :add, value: 10 })
    store = store |> dispatch(%{ type: :add, value: 10 })
    store = store |> subscribe(&another_subscriber/1)
    store = store |> dispatch(%{ type: :add, value: 30 })
    store = store |> dispatch(%{ type: :add, value: 30 })

    store
    end
    end
    end

    Example.run
  7. marksteve revised this gist Jun 3, 2016. 2 changed files with 58 additions and 21 deletions.
    27 changes: 22 additions & 5 deletions _redux.ex
    View file
    Original file line number Diff line number Diff line change
    @@ -1,13 +1,15 @@
    defmodule Redux do
    @moduledoc """
    Like redux.js, but more elixir-like
    store = create_store fn state, action -> ... end
    store |> get_state()
    store |> dispatch(%{ type: "publish" })
    store = create_store fn state, action -> ... end
    store |> get_state()
    store |> subscribe(fn -> IO.puts get_state() end)
    store |> dispatch(%{ type: "publish" })
    """

    defstruct reducer: nil, state: nil
    defstruct reducer: nil, state: nil, subscribers: []

    @doc """
    Creates a store
    @@ -30,5 +32,20 @@ defmodule Redux do
    def dispatch(store, action) do
    store
    |> Map.put(:state, store.reducer.(get_state(store), action))
    |> run_subscribers(store.subscribers)
    end

    defp run_subscribers(store, [subscriber | subscribers]) do
    :ok = subscriber.(store)
    run_subscribers(store, subscribers)
    end
    defp run_subscribers(store, []), do: store

    @doc """
    Subscribe to a store
    """
    def subscribe(store, subscriber) do
    store
    |> Map.put(:subscribers, store.subscribers ++ [subscriber])
    end
    end
    52 changes: 36 additions & 16 deletions example.ex
    View file
    Original file line number Diff line number Diff line change
    @@ -1,26 +1,46 @@
    defmodule Example do
    import Redux

    def reducer(state, action) do
    case action.type do
    :set ->
    action.value
    :add ->
    state + action.value
    _ ->
    state
    end
    def reducer(state, action) do
    case action.type do
    :set ->
    action.value
    :add ->
    state + action.value
    _ ->
    state
    end
    end

    def subscriber(store) do
    state = get_state(store)
    :ok = IO.puts("subscriber: #{state}")
    end

    def another_subscriber(store) do
    state = get_state(store)
    :ok = IO.puts("another_subscriber: #{state}")
    end

    def run do
    store = create_store(&reducer/2)
    @doc """
    Expected output:
    2
    subscriber: 12
    subscriber: 42
    another_subscriber: 42
    """
    def run do
    store = create_store(&reducer/2)

    store = store |> dispatch(%{ type: :set, value: 2 })
    IO.puts(store |> get_state()) #=> 2
    store = store |> dispatch(%{ type: :set, value: 2 })
    IO.puts(store |> get_state())
    store = store |> subscribe(&subscriber/1)
    store = store |> dispatch(%{ type: :add, value: 10 })
    store = store |> subscribe(&another_subscriber/1)
    store = store |> dispatch(%{ type: :add, value: 30 })

    store = dispatch(store, %{ type: :add, value: 10 })
    IO.puts(store |> get_state()) #=> 12
    end
    store
    end
    end

    Example.run
  8. @rstacruz rstacruz revised this gist Jun 3, 2016. 1 changed file with 4 additions and 4 deletions.
    8 changes: 4 additions & 4 deletions example.ex
    View file
    Original file line number Diff line number Diff line change
    @@ -3,9 +3,9 @@ defmodule Example do

    def reducer(state, action) do
    case action.type do
    "set" ->
    :set ->
    action.value
    "add" ->
    :add ->
    state + action.value
    _ ->
    state
    @@ -15,10 +15,10 @@ defmodule Example do
    def run do
    store = create_store(&reducer/2)

    store = store |> dispatch(%{ type: "set", value: 2 })
    store = store |> dispatch(%{ type: :set, value: 2 })
    IO.puts(store |> get_state()) #=> 2

    store = dispatch(store, %{ type: "add", value: 10 })
    store = dispatch(store, %{ type: :add, value: 10 })
    IO.puts(store |> get_state()) #=> 12
    end
    end
  9. @rstacruz rstacruz revised this gist Jun 2, 2016. 1 changed file with 23 additions and 13 deletions.
    36 changes: 23 additions & 13 deletions example.ex
    View file
    Original file line number Diff line number Diff line change
    @@ -1,16 +1,26 @@
    store = Redux.create_store fn state, action ->
    case action.type do
    :set ->
    action.value
    :add ->
    state + action.value
    _ ->
    state
    defmodule Example do
    import Redux

    def reducer(state, action) do
    case action.type do
    "set" ->
    action.value
    "add" ->
    state + action.value
    _ ->
    state
    end
    end
    end

    store = store |> Redux.dispatch(%{ type: :set, value: 2 })
    IO.puts(store |> Redux.get_state()) #=> 2
    def run do
    store = create_store(&reducer/2)

    store = store |> dispatch(%{ type: "set", value: 2 })
    IO.puts(store |> get_state()) #=> 2

    store = dispatch(store, %{ type: "add", value: 10 })
    IO.puts(store |> get_state()) #=> 12
    end
    end

    store = Redux.dispatch(store, %{ type: :add, value: 10 })
    IO.puts(store |> Redux.get_state()) #=> 12
    Example.run
  10. @rstacruz rstacruz revised this gist Jun 2, 2016. 2 changed files with 5 additions and 5 deletions.
    2 changes: 1 addition & 1 deletion _redux.ex
    View file
    Original file line number Diff line number Diff line change
    @@ -14,7 +14,7 @@ defmodule Redux do
    """
    def create_store(reducer, initial_state \\ nil) do
    %Redux{reducer: reducer, state: initial_state}
    |> dispatch(%{ type: "@@redux/INIT" })
    |> dispatch(%{ type: :"@@redux/INIT" })
    end

    @doc """
    8 changes: 4 additions & 4 deletions example.ex
    View file
    Original file line number Diff line number Diff line change
    @@ -1,16 +1,16 @@
    store = Redux.create_store fn state, action ->
    case action.type do
    "set" ->
    :set ->
    action.value
    "add" ->
    :add ->
    state + action.value
    _ ->
    state
    end
    end

    store = store |> Redux.dispatch(%{ type: "set", value: 2 })
    store = store |> Redux.dispatch(%{ type: :set, value: 2 })
    IO.puts(store |> Redux.get_state()) #=> 2

    store = Redux.dispatch(store, %{ type: "add", value: 10 })
    store = Redux.dispatch(store, %{ type: :add, value: 10 })
    IO.puts(store |> Redux.get_state()) #=> 12
  11. @rstacruz rstacruz revised this gist Jun 2, 2016. 1 changed file with 2 additions and 1 deletion.
    3 changes: 2 additions & 1 deletion _redux.ex
    View file
    Original file line number Diff line number Diff line change
    @@ -28,6 +28,7 @@ defmodule Redux do
    Dispatches an action
    """
    def dispatch(store, action) do
    Map.put(store, :state, store.reducer.(get_state(store), action))
    store
    |> Map.put(:state, store.reducer.(get_state(store), action))
    end
    end
  12. @rstacruz rstacruz revised this gist Jun 2, 2016. 1 changed file with 4 additions and 0 deletions.
    4 changes: 4 additions & 0 deletions _redux.ex
    View file
    Original file line number Diff line number Diff line change
    @@ -1,6 +1,10 @@
    defmodule Redux do
    @moduledoc """
    Like redux.js, but more elixir-like
    store = create_store fn state, action -> ... end
    store |> get_state()
    store |> dispatch(%{ type: "publish" })
    """

    defstruct reducer: nil, state: nil
  13. @rstacruz rstacruz revised this gist Jun 2, 2016. 2 changed files with 0 additions and 0 deletions.
    0 redux.ex → _redux.ex
    View file
    File renamed without changes.
    0 _example.ex → example.ex
    View file
    File renamed without changes.
  14. @rstacruz rstacruz revised this gist Jun 2, 2016. No changes.
  15. @rstacruz rstacruz created this gist Jun 2, 2016.
    16 changes: 16 additions & 0 deletions _example.ex
    View file
    Original file line number Diff line number Diff line change
    @@ -0,0 +1,16 @@
    store = Redux.create_store fn state, action ->
    case action.type do
    "set" ->
    action.value
    "add" ->
    state + action.value
    _ ->
    state
    end
    end

    store = store |> Redux.dispatch(%{ type: "set", value: 2 })
    IO.puts(store |> Redux.get_state()) #=> 2

    store = Redux.dispatch(store, %{ type: "add", value: 10 })
    IO.puts(store |> Redux.get_state()) #=> 12
    29 changes: 29 additions & 0 deletions redux.ex
    View file
    Original file line number Diff line number Diff line change
    @@ -0,0 +1,29 @@
    defmodule Redux do
    @moduledoc """
    Like redux.js, but more elixir-like
    """

    defstruct reducer: nil, state: nil

    @doc """
    Creates a store
    """
    def create_store(reducer, initial_state \\ nil) do
    %Redux{reducer: reducer, state: initial_state}
    |> dispatch(%{ type: "@@redux/INIT" })
    end

    @doc """
    Returns the current state
    """
    def get_state(store) do
    store.state
    end

    @doc """
    Dispatches an action
    """
    def dispatch(store, action) do
    Map.put(store, :state, store.reducer.(get_state(store), action))
    end
    end