pipes: enum.map(x) |> map.new() => map.new(x)

Author: novaugust

CHANGELOG.md

@@ -2,6 +2,11 @@
 
 ## main
 
+### Improvements
+
+* deprecations: `~R` -> `~r`, `Date.range/2` -> `Date.range/3` with decreasing dates (h/t @milmazz)
+* pipes: `|> Enum.map(foo) |> Map.new()` => `|> Map.new(foo)`
+
 ## v0.11.6
 
 ### Fixes

lib/style/pipes.ex

@@ -210,6 +210,13 @@ defmodule Styler.Style.Pipes do
       else: node
   end
 
+  # `lhs |> Enum.map(mapper) |> Map.new()` => `lhs |> Map.new(mapper)
+  defp fix_pipe(
+         pipe_chain(lhs, {{:., _, [{_, _, [:Enum]}, :map]}, _, [mapper]}, {{:., _, [{_, _, [:Map]}, :new]} = new, nm, []})
+       ) do
+    Style.set_line({:|>, [], [lhs, {new, nm, [mapper]}]}, nm[:line])
+  end
+
   for mod <- [:Map, :Keyword] do
     # lhs |> Map.merge(%{key: value}) => lhs |> Map.put(key, value)
     defp fix_pipe({:|>, pm, [lhs, {{:., dm, [{_, _, [unquote(mod)]} = mod, :merge]}, m, [{:%{}, _, [{key, value}]}]}]}),

test/style/pipes_test.exs

@@ -654,6 +654,10 @@ defmodule Styler.Style.PipesTest do
       )
     end
 
+    test "Enum.map(x) |> Map.new()" do
+      assert_style("a |> Enum.map(b) |> Map.new()", "Map.new(a, b)")
+    end
+
     test "into a new map" do
       assert_style("a |> Enum.into(foo) |> b()")
       assert_style("a |> Enum.into(%{}) |> b()", "a |> Map.new() |> b()")