Changes: inlines anonymous schema nodes in elm code

- Changes: inlines anonymous schema nodes in elm code to reduce the scenarios
  where we have to auto-generate names like 'zero' and 'one'.

- Cleans: major refactoring of the code structure such that the EEx templates
  correspond to the different output types, e.g. product types, sum decoders,
  list fuzzers, etc., rather than the different input types, e.g. array, object,
  oneOf, etc.

- Cleans: related to the above point, all the different output elm
  types/decoders/encoders/fuzzers now have proper type specifications in the
  elm_{types,decoders,encoders,fuzzers}.ex util modules.

Author: dragonwasrobot

.formatter.exs

@@ -1,4 +1,3 @@
 [
-  inputs: ["mix.exs", "{config,lib,test}/**/*.{ex,exs}"],
-  line_length: 80
+  inputs: ["mix.exs", "{config,lib,test}/**/*.{ex,exs}"]
 ]

.gitignore

@@ -3,6 +3,7 @@ js2e
 /js2e_output
 node_modules
 elm-stuff
+package-lock.json
 
 # The directory Mix will write compiled artifacts to.
 /_build

examples/example-output-elm-code/src/Data/Circle.elm

@@ -2,6 +2,8 @@ module Data.Circle exposing (..)
 
 -- Schema for a circle shape
 
+import Data.Definitions as Definitions
+import Data.Encode as Encode
 import Json.Decode as Decode exposing (Decoder)
 import Json.Decode.Extra as Decode
 import Json.Decode.Pipeline
@@ -11,8 +13,6 @@ import Json.Decode.Pipeline
         , required
         )
 import Json.Encode as Encode exposing (Value)
-import Data.Encode as Encode
-import Data.Definitions as Definitions
 
 
 type alias Circle =

lib/js2e.ex

@@ -26,8 +26,7 @@ defmodule JS2E do
 
   @spec main([String.t()]) :: :ok
   def main(args) do
-    {options, paths, errors} =
-      OptionParser.parse(args, switches: [module_name: :string])
+    {options, paths, errors} = OptionParser.parse(args, switches: [module_name: :string])
 
     if Enum.empty?(paths) == true do
       IO.puts(@moduledoc)
@@ -42,9 +41,7 @@ defmodule JS2E do
     files = resolve_all_paths(paths)
 
     if Enum.empty?(files) == true do
-      print_error(
-        "Error: Could not find any JSON files in path: #{inspect(paths)}"
-      )
+      print_error("Error: Could not find any JSON files in path: #{inspect(paths)}")
 
       exit(:no_files)
     end
@@ -125,11 +122,9 @@ defmodule JS2E do
     else
       Logger.info("Converting to Elm code!")
 
-      printer_result =
-        Printer.print_schemas(parser_result.schema_dict, module_name)
+      printer_result = Printer.print_schemas(parser_result.schema_dict, module_name)
 
-      tests_printer_result =
-        Printer.print_schemas_tests(parser_result.schema_dict, module_name)
+      tests_printer_result = Printer.print_schemas_tests(parser_result.schema_dict, module_name)
 
       cond do
         length(printer_result.errors) > 0 ->
@@ -311,8 +306,7 @@ defmodule JS2E do
   end
 
   defp warning_header do
-    header =
-      String.duplicate("^", 35) <> " WARNINGS " <> String.duplicate("^", 35)
+    header = String.duplicate("^", 35) <> " WARNINGS " <> String.duplicate("^", 35)
 
     IO.puts(IO.ANSI.format([:yellow, header]))
   end