Require Elixir v1.13

Closes #3167.

CHANGELOG.md

@@ -7,6 +7,9 @@
 
 ## 0.20.12 (2024-03-04)
 
+### Enhancements
+  * Phoenix LiveView requires Elixir v1.13+
+
 ### Bug fixes
   * Do not send Telemetry metadata as Logger event, this avoids the metadata from being accidentally copied to other processes
   * Ensure LiveViewTest does not crash on IDs with foreign characters, such as question marks

lib/phoenix_live_view/html_algebra.ex

@@ -3,9 +3,6 @@ defmodule Phoenix.LiveView.HTMLAlgebra do
 
   import Inspect.Algebra, except: [format: 2]
 
-  # TODO: Remove it after versions before Elixir 1.13 are no longer supported.
-  @compile {:no_warn_undefined, Code}
-
   @languages ~w(style script)
 
   # The formatter has two modes:

lib/phoenix_live_view/html_formatter.ex

@@ -220,16 +220,12 @@ defmodule Phoenix.LiveView.HTMLFormatter do
     @behaviour Mix.Tasks.Format
   end
 
-  # TODO: Add it back after versions before Elixir 1.13 are no longer supported.
-  # @impl Mix.Tasks.Format
-  @doc false
+  @impl Mix.Tasks.Format
   def features(_opts) do
     [sigils: [:H], extensions: [".heex"]]
   end
 
-  # TODO: Add it back after versions before Elixir 1.13 are no longer supported.
-  # @impl Mix.Tasks.Format
-  @doc false
+  @impl Mix.Tasks.Format
   def format(source, opts) do
     line_length = opts[:heex_line_length] || opts[:line_length] || @default_line_length
     newlines = :binary.matches(source, ["\r\n", "\n"])

lib/phoenix_live_view/tag_engine.ex

@@ -1209,20 +1209,12 @@ defmodule Phoenix.LiveView.TagEngine do
   defp to_location(%{line: line, column: column}), do: [line: line, column: column]
 
   defp actual_component_module(env, fun) do
-    case lookup_import(env, {fun, 1}) do
+    case Macro.Env.lookup_import(env, {fun, 1}) do
       [{_, module} | _] -> module
       _ -> env.module
     end
   end
 
-  # TODO: Use Macro.Env.lookup_import/2 when we require Elixir v1.13+
-  defp lookup_import(%Macro.Env{functions: functions, macros: macros}, {name, arity} = pair)
-       when is_atom(name) and is_integer(arity) do
-    f = for {mod, pairs} <- functions, :ordsets.is_element(pair, pairs), do: {:function, mod}
-    m = for {mod, pairs} <- macros, :ordsets.is_element(pair, pairs), do: {:macro, mod}
-    f ++ m
-  end
-
   defp remove_phx_no_break(attrs) do
     List.keydelete(attrs, "phx-no-format", 0)
   end

mix.exs

@@ -7,7 +7,7 @@ defmodule Phoenix.LiveView.MixProject do
     [
       app: :phoenix_live_view,
       version: @version,
-      elixir: "~> 1.12",
+      elixir: "~> 1.13",
       start_permanent: Mix.env() == :prod,
       elixirc_paths: elixirc_paths(Mix.env()),
       test_options: [docs: true],