From 62db116c1e4749943e55b113931ee7c4f0dc4ad6 Mon Sep 17 00:00:00 2001
From: Andrey Novikov <envek@envek.name>
Date: Thu, 14 Nov 2024 20:00:18 +0900
Subject: [PATCH] Retrieve comments from database tables, override, and output

---
 lib/typelizer/config.rb                                   | 2 ++
 lib/typelizer/interface.rb                                | 6 +++++-
 lib/typelizer/model_plugins/active_record.rb              | 8 ++++++++
 lib/typelizer/model_plugins/poro.rb                       | 4 ++++
 lib/typelizer/property.rb                                 | 2 +-
 lib/typelizer/templates/interface.ts.erb                  | 1 +
 spec/__snapshots__/AlbaInline.ts.snap                     | 2 +-
 spec/__snapshots__/AlbaMeta.ts.snap                       | 2 +-
 spec/__snapshots__/AlbaMetaNil.ts.snap                    | 2 +-
 spec/__snapshots__/AlbaPoro.ts.snap                       | 2 +-
 spec/__snapshots__/AlbaPost.ts.snap                       | 2 +-
 spec/__snapshots__/AlbaUser.ts.snap                       | 2 +-
 spec/__snapshots__/AlbaUserAuthor.ts.snap                 | 3 ++-
 spec/__snapshots__/AlbaUserEmptyNested.ts.snap            | 3 ++-
 spec/__snapshots__/AlbaUserSerializerFoo.ts.snap          | 2 +-
 spec/__snapshots__/AlbaVerbatimModuleSyntax.ts.snap       | 2 +-
 spec/__snapshots__/AmsPost.ts.snap                        | 2 +-
 spec/__snapshots__/AmsUser.ts.snap                        | 2 +-
 spec/__snapshots__/AmsUserAuthor.ts.snap                  | 3 ++-
 spec/__snapshots__/AmsUserEmptyNested.ts.snap             | 3 ++-
 spec/__snapshots__/AmsUserSerializerFoo.ts.snap           | 2 +-
 spec/__snapshots__/AmsVerbatimModuleSyntax.ts.snap        | 2 +-
 spec/__snapshots__/OjSerializersFlatUser.ts.snap          | 2 +-
 spec/__snapshots__/OjSerializersPost.ts.snap              | 2 +-
 spec/__snapshots__/OjSerializersUser.ts.snap              | 2 +-
 spec/__snapshots__/OjSerializersUserAuthor.ts.snap        | 3 ++-
 spec/__snapshots__/OjSerializersUserEmptyNested.ts.snap   | 3 ++-
 spec/__snapshots__/OjSerializersUserSerializerFoo.ts.snap | 2 +-
 .../OjSerializersVerbatimModuleSyntax.ts.snap             | 2 +-
 spec/app/app/serializers/alba/user/author_serializer.rb   | 2 +-
 spec/app/app/serializers/ams/user/author_serializer.rb    | 2 +-
 .../serializers/oj_serializers/user/author_serializer.rb  | 2 +-
 spec/app/config/initializers/typelizer.rb                 | 2 ++
 33 files changed, 55 insertions(+), 28 deletions(-)

diff --git a/lib/typelizer/config.rb b/lib/typelizer/config.rb
index 2e028f5..44b64f5 100644
--- a/lib/typelizer/config.rb
+++ b/lib/typelizer/config.rb
@@ -25,6 +25,7 @@ class Config < Struct.new(
     :types_import_path,
     :types_global,
     :verbatim_module_syntax,
+    :comments,
     keyword_init: true
   ) do
     class << self
@@ -46,6 +47,7 @@ def instance
 
           type_mapping: TYPE_MAPPING,
           null_strategy: :nullable,
+          comments: false,
 
           output_dir: js_root.join("types/serializers"),
 
diff --git a/lib/typelizer/interface.rb b/lib/typelizer/interface.rb
index 960b57b..0b68f24 100644
--- a/lib/typelizer/interface.rb
+++ b/lib/typelizer/interface.rb
@@ -87,7 +87,11 @@ def infer_types(props, hash_name = :_typelizer_attributes)
       props.map do |prop|
         if serializer.respond_to?(hash_name)
           dsl_type = serializer.public_send(hash_name)[prop.name.to_sym]
-          next Property.new(prop.to_h.merge(dsl_type)) if dsl_type&.any?
+          if dsl_type&.any?
+            next Property.new(prop.to_h.merge(dsl_type)).tap do |property|
+              property.comment ||= model_plugin.comment_for(property) if config.comments && property.comment != false
+            end
+          end
         end
 
         model_plugin.infer_types(prop)
diff --git a/lib/typelizer/model_plugins/active_record.rb b/lib/typelizer/model_plugins/active_record.rb
index a653b6e..6931290 100644
--- a/lib/typelizer/model_plugins/active_record.rb
+++ b/lib/typelizer/model_plugins/active_record.rb
@@ -26,9 +26,17 @@ def infer_types(prop)
         end
 
         prop.type = @config.type_mapping[column.type]
+        prop.comment = comment_for(prop)
 
         prop
       end
+
+      def comment_for(prop)
+        column = columns_hash[prop.column_name.to_s]
+        return nil unless column
+
+        prop.comment = column.comment
+      end
     end
   end
 end
diff --git a/lib/typelizer/model_plugins/poro.rb b/lib/typelizer/model_plugins/poro.rb
index 382774a..cc0857f 100644
--- a/lib/typelizer/model_plugins/poro.rb
+++ b/lib/typelizer/model_plugins/poro.rb
@@ -8,6 +8,10 @@ def initialize(...)
       def infer_types(prop)
         prop
       end
+
+      def comment_for(prop)
+        nil
+      end
     end
   end
 end
diff --git a/lib/typelizer/property.rb b/lib/typelizer/property.rb
index e647e96..125c78b 100644
--- a/lib/typelizer/property.rb
+++ b/lib/typelizer/property.rb
@@ -1,7 +1,7 @@
 module Typelizer
   Property = Struct.new(
     :name, :type, :optional, :nullable,
-    :multi, :column_name,
+    :multi, :column_name, :comment,
     keyword_init: true
   ) do
     def inspect
diff --git a/lib/typelizer/templates/interface.ts.erb b/lib/typelizer/templates/interface.ts.erb
index 9e766a1..57f8795 100644
--- a/lib/typelizer/templates/interface.ts.erb
+++ b/lib/typelizer/templates/interface.ts.erb
@@ -18,6 +18,7 @@ type <%= interface.name %> = {
 <%- else -%>
 type <%= interface.name %> = {
 <%- interface.properties.each do |property| -%>
+<%= indent("// #{property.comment.tr("\n", '\n')}\n") if interface.config.comments && property.comment -%>
 <%= indent(property) %>;
 <%- end -%>
 }
diff --git a/spec/__snapshots__/AlbaInline.ts.snap b/spec/__snapshots__/AlbaInline.ts.snap
index d0a6033..c45afa9 100644
--- a/spec/__snapshots__/AlbaInline.ts.snap
+++ b/spec/__snapshots__/AlbaInline.ts.snap
@@ -1,4 +1,4 @@
-// Typelizer digest 31c711d30b829018bdc69e3e09ca8e72
+// Typelizer digest f5275d68218cedacb480ce36d1e6bbe2
 //
 // DO NOT MODIFY: This file was automatically generated by Typelizer.
 
diff --git a/spec/__snapshots__/AlbaMeta.ts.snap b/spec/__snapshots__/AlbaMeta.ts.snap
index 7d9ace3..c466dbe 100644
--- a/spec/__snapshots__/AlbaMeta.ts.snap
+++ b/spec/__snapshots__/AlbaMeta.ts.snap
@@ -1,4 +1,4 @@
-// Typelizer digest 324c9ad635869485fb8231dfbed8cffe
+// Typelizer digest bf4b0c896fc166774c2208b110c6d2e9
 //
 // DO NOT MODIFY: This file was automatically generated by Typelizer.
 
diff --git a/spec/__snapshots__/AlbaMetaNil.ts.snap b/spec/__snapshots__/AlbaMetaNil.ts.snap
index 0b2b612..2dbfd0b 100644
--- a/spec/__snapshots__/AlbaMetaNil.ts.snap
+++ b/spec/__snapshots__/AlbaMetaNil.ts.snap
@@ -1,4 +1,4 @@
-// Typelizer digest 22be4653e9abf0c8b5e2963602fbf179
+// Typelizer digest aa6e6401d09df2e398c69ccd17c99ee5
 //
 // DO NOT MODIFY: This file was automatically generated by Typelizer.
 
diff --git a/spec/__snapshots__/AlbaPoro.ts.snap b/spec/__snapshots__/AlbaPoro.ts.snap
index 56b16d0..b5aa284 100644
--- a/spec/__snapshots__/AlbaPoro.ts.snap
+++ b/spec/__snapshots__/AlbaPoro.ts.snap
@@ -1,4 +1,4 @@
-// Typelizer digest 3c3acd1390157d9666f0f2be46bfcb1c
+// Typelizer digest 4a7987ac34502a3281b1f42e3f266099
 //
 // DO NOT MODIFY: This file was automatically generated by Typelizer.
 
diff --git a/spec/__snapshots__/AlbaPost.ts.snap b/spec/__snapshots__/AlbaPost.ts.snap
index bc55c7f..a0ba35a 100644
--- a/spec/__snapshots__/AlbaPost.ts.snap
+++ b/spec/__snapshots__/AlbaPost.ts.snap
@@ -1,4 +1,4 @@
-// Typelizer digest 37cf53e5c2445bf410d20f0dc76526d9
+// Typelizer digest 3ab2e20940a1c4559f44fb582ad7719d
 //
 // DO NOT MODIFY: This file was automatically generated by Typelizer.
 import type {AlbaUser} from '@/types'
diff --git a/spec/__snapshots__/AlbaUser.ts.snap b/spec/__snapshots__/AlbaUser.ts.snap
index de9ae0e..008e61a 100644
--- a/spec/__snapshots__/AlbaUser.ts.snap
+++ b/spec/__snapshots__/AlbaUser.ts.snap
@@ -1,4 +1,4 @@
-// Typelizer digest 9639758a07e00e4992619fbdef2450db
+// Typelizer digest 480b9d1caeafc717431d31282ba0981c
 //
 // DO NOT MODIFY: This file was automatically generated by Typelizer.
 import type {AlbaPost} from '@/types'
diff --git a/spec/__snapshots__/AlbaUserAuthor.ts.snap b/spec/__snapshots__/AlbaUserAuthor.ts.snap
index 6ec8281..80b84af 100644
--- a/spec/__snapshots__/AlbaUserAuthor.ts.snap
+++ b/spec/__snapshots__/AlbaUserAuthor.ts.snap
@@ -1,10 +1,11 @@
-// Typelizer digest cea56a3dcb747f59b3998779acbe93f8
+// Typelizer digest 5853f063c6c19b98aeeee99e9c29980a
 //
 // DO NOT MODIFY: This file was automatically generated by Typelizer.
 import type {AlbaPost} from '@/types'
 
 type AlbaUserAuthor = {
   id: number;
+  // Author login handle
   username: string | null;
   posts?: Array<AlbaPost>;
   avatar: unknown;
diff --git a/spec/__snapshots__/AlbaUserEmptyNested.ts.snap b/spec/__snapshots__/AlbaUserEmptyNested.ts.snap
index 57a4cb0..50c4119 100644
--- a/spec/__snapshots__/AlbaUserEmptyNested.ts.snap
+++ b/spec/__snapshots__/AlbaUserEmptyNested.ts.snap
@@ -1,10 +1,11 @@
-// Typelizer digest 1002a651beda81fd3d91636e80542552
+// Typelizer digest 3bf7801f630edffea7eefdcb86e3fb74
 //
 // DO NOT MODIFY: This file was automatically generated by Typelizer.
 import type {AlbaPost} from '@/types'
 
 type AlbaUserEmptyNested = {
   id: number;
+  // Author login handle
   username: string | null;
   posts?: Array<AlbaPost>;
   avatar: unknown;
diff --git a/spec/__snapshots__/AlbaUserSerializerFoo.ts.snap b/spec/__snapshots__/AlbaUserSerializerFoo.ts.snap
index 72c82aa..a663b69 100644
--- a/spec/__snapshots__/AlbaUserSerializerFoo.ts.snap
+++ b/spec/__snapshots__/AlbaUserSerializerFoo.ts.snap
@@ -1,4 +1,4 @@
-// Typelizer digest c6fb5013c54f52cedcbedeaef1455ff1
+// Typelizer digest 4e7d58f3d78c500545098dad7137b8c6
 //
 // DO NOT MODIFY: This file was automatically generated by Typelizer.
 import type {AlbaUser, AlbaPost} from '@/types'
diff --git a/spec/__snapshots__/AlbaVerbatimModuleSyntax.ts.snap b/spec/__snapshots__/AlbaVerbatimModuleSyntax.ts.snap
index 01d2a85..111fcc8 100644
--- a/spec/__snapshots__/AlbaVerbatimModuleSyntax.ts.snap
+++ b/spec/__snapshots__/AlbaVerbatimModuleSyntax.ts.snap
@@ -1,4 +1,4 @@
-// Typelizer digest a6d580654a084cc58071460e42093126
+// Typelizer digest f82208b39a056eaa4fdfc6b8696f7c93
 //
 // DO NOT MODIFY: This file was automatically generated by Typelizer.
 
diff --git a/spec/__snapshots__/AmsPost.ts.snap b/spec/__snapshots__/AmsPost.ts.snap
index 4fb07eb..424e82b 100644
--- a/spec/__snapshots__/AmsPost.ts.snap
+++ b/spec/__snapshots__/AmsPost.ts.snap
@@ -1,4 +1,4 @@
-// Typelizer digest 38cf3a9940c0128748ccff969ac2d9ac
+// Typelizer digest 49f4596d7eb72effcbb13a7b5a05ea44
 //
 // DO NOT MODIFY: This file was automatically generated by Typelizer.
 import type {AmsUser} from '@/types'
diff --git a/spec/__snapshots__/AmsUser.ts.snap b/spec/__snapshots__/AmsUser.ts.snap
index 01a7b55..2778662 100644
--- a/spec/__snapshots__/AmsUser.ts.snap
+++ b/spec/__snapshots__/AmsUser.ts.snap
@@ -1,4 +1,4 @@
-// Typelizer digest 83c10371506a5252b3c5eb44ff747d45
+// Typelizer digest 1aea91828e4e0f1dfdd795922b602e40
 //
 // DO NOT MODIFY: This file was automatically generated by Typelizer.
 import type {AmsPost} from '@/types'
diff --git a/spec/__snapshots__/AmsUserAuthor.ts.snap b/spec/__snapshots__/AmsUserAuthor.ts.snap
index 73a9eb1..4f18894 100644
--- a/spec/__snapshots__/AmsUserAuthor.ts.snap
+++ b/spec/__snapshots__/AmsUserAuthor.ts.snap
@@ -1,10 +1,11 @@
-// Typelizer digest d00424b465021050da1b0cca9388df55
+// Typelizer digest 6b3157b1afb8bd20ec259745483e6069
 //
 // DO NOT MODIFY: This file was automatically generated by Typelizer.
 import type {AmsPost} from '@/types'
 
 type AmsUserAuthor = {
   id: number;
+  // Author login handle
   username: string | null;
   avatar: unknown;
   typed_avatar: string | null;
diff --git a/spec/__snapshots__/AmsUserEmptyNested.ts.snap b/spec/__snapshots__/AmsUserEmptyNested.ts.snap
index 3c6d503..2e32e44 100644
--- a/spec/__snapshots__/AmsUserEmptyNested.ts.snap
+++ b/spec/__snapshots__/AmsUserEmptyNested.ts.snap
@@ -1,10 +1,11 @@
-// Typelizer digest 8c962041f6d8142284309a7a7695ccff
+// Typelizer digest fe35a8cc2cd60cd90112d82d3886a6ad
 //
 // DO NOT MODIFY: This file was automatically generated by Typelizer.
 import type {AmsPost} from '@/types'
 
 type AmsUserEmptyNested = {
   id: number;
+  // Author login handle
   username: string | null;
   avatar: unknown;
   typed_avatar: string | null;
diff --git a/spec/__snapshots__/AmsUserSerializerFoo.ts.snap b/spec/__snapshots__/AmsUserSerializerFoo.ts.snap
index 2ada5b7..553150a 100644
--- a/spec/__snapshots__/AmsUserSerializerFoo.ts.snap
+++ b/spec/__snapshots__/AmsUserSerializerFoo.ts.snap
@@ -1,4 +1,4 @@
-// Typelizer digest c3e52d2a5d6865f2ee8a01c8b8d38dd2
+// Typelizer digest 01c1c8d2bbca94c0ac46a9dedfc1d312
 //
 // DO NOT MODIFY: This file was automatically generated by Typelizer.
 import type {AmsUser, AmsPost} from '@/types'
diff --git a/spec/__snapshots__/AmsVerbatimModuleSyntax.ts.snap b/spec/__snapshots__/AmsVerbatimModuleSyntax.ts.snap
index 88f4f3c..0fa4cf2 100644
--- a/spec/__snapshots__/AmsVerbatimModuleSyntax.ts.snap
+++ b/spec/__snapshots__/AmsVerbatimModuleSyntax.ts.snap
@@ -1,4 +1,4 @@
-// Typelizer digest 4f6b6fed16d511dbfe9a02a0b7aa9c41
+// Typelizer digest 7c09585f88197784fbfde340bfd5e36b
 //
 // DO NOT MODIFY: This file was automatically generated by Typelizer.
 
diff --git a/spec/__snapshots__/OjSerializersFlatUser.ts.snap b/spec/__snapshots__/OjSerializersFlatUser.ts.snap
index ea0e8f6..bce1401 100644
--- a/spec/__snapshots__/OjSerializersFlatUser.ts.snap
+++ b/spec/__snapshots__/OjSerializersFlatUser.ts.snap
@@ -1,4 +1,4 @@
-// Typelizer digest d0613bfadf56720cfde6062373be13a6
+// Typelizer digest 5fc05a8d823c221cd138c49d17ccd54c
 //
 // DO NOT MODIFY: This file was automatically generated by Typelizer.
 import type {OjSerializersUser, OjSerializersPost} from '@/types'
diff --git a/spec/__snapshots__/OjSerializersPost.ts.snap b/spec/__snapshots__/OjSerializersPost.ts.snap
index 1240d7f..df285f7 100644
--- a/spec/__snapshots__/OjSerializersPost.ts.snap
+++ b/spec/__snapshots__/OjSerializersPost.ts.snap
@@ -1,4 +1,4 @@
-// Typelizer digest e7ea4668b82a2d60552e8eaf7ada3d7a
+// Typelizer digest b05ae512914de90ee4c78f8b8d5ef96a
 //
 // DO NOT MODIFY: This file was automatically generated by Typelizer.
 import type {OjSerializersUser} from '@/types'
diff --git a/spec/__snapshots__/OjSerializersUser.ts.snap b/spec/__snapshots__/OjSerializersUser.ts.snap
index 7113343..19999a6 100644
--- a/spec/__snapshots__/OjSerializersUser.ts.snap
+++ b/spec/__snapshots__/OjSerializersUser.ts.snap
@@ -1,4 +1,4 @@
-// Typelizer digest 63fa5a28b5147a978506b2c0e5f3f398
+// Typelizer digest fc111d0651504bd12951008cbc0bfffd
 //
 // DO NOT MODIFY: This file was automatically generated by Typelizer.
 import type {OjSerializersPost} from '@/types'
diff --git a/spec/__snapshots__/OjSerializersUserAuthor.ts.snap b/spec/__snapshots__/OjSerializersUserAuthor.ts.snap
index 2e24acd..ea4a8d7 100644
--- a/spec/__snapshots__/OjSerializersUserAuthor.ts.snap
+++ b/spec/__snapshots__/OjSerializersUserAuthor.ts.snap
@@ -1,10 +1,11 @@
-// Typelizer digest 6c423801303540bc8b86331341f9a08c
+// Typelizer digest 8b7f37c2d5f826ce3dfb592d5774a1a5
 //
 // DO NOT MODIFY: This file was automatically generated by Typelizer.
 import type {OjSerializersPost} from '@/types'
 
 type OjSerializersUserAuthor = {
   id: number;
+  // Author login handle
   username: string | null;
   posts?: Array<OjSerializersPost>;
   avatar: unknown;
diff --git a/spec/__snapshots__/OjSerializersUserEmptyNested.ts.snap b/spec/__snapshots__/OjSerializersUserEmptyNested.ts.snap
index cf27da9..ddd6009 100644
--- a/spec/__snapshots__/OjSerializersUserEmptyNested.ts.snap
+++ b/spec/__snapshots__/OjSerializersUserEmptyNested.ts.snap
@@ -1,10 +1,11 @@
-// Typelizer digest 792747cc9a6687f61568633186ee265d
+// Typelizer digest 2ebe03be885472fb7f96144781d418f1
 //
 // DO NOT MODIFY: This file was automatically generated by Typelizer.
 import type {OjSerializersPost} from '@/types'
 
 type OjSerializersUserEmptyNested = {
   id: number;
+  // Author login handle
   username: string | null;
   posts?: Array<OjSerializersPost>;
   avatar: unknown;
diff --git a/spec/__snapshots__/OjSerializersUserSerializerFoo.ts.snap b/spec/__snapshots__/OjSerializersUserSerializerFoo.ts.snap
index 1380206..8510f5f 100644
--- a/spec/__snapshots__/OjSerializersUserSerializerFoo.ts.snap
+++ b/spec/__snapshots__/OjSerializersUserSerializerFoo.ts.snap
@@ -1,4 +1,4 @@
-// Typelizer digest 4b93ca3b7d3283f9147217b575696867
+// Typelizer digest 220ec4296faaf24a55e668b3ff1cbccd
 //
 // DO NOT MODIFY: This file was automatically generated by Typelizer.
 import type {OjSerializersUser, OjSerializersPost} from '@/types'
diff --git a/spec/__snapshots__/OjSerializersVerbatimModuleSyntax.ts.snap b/spec/__snapshots__/OjSerializersVerbatimModuleSyntax.ts.snap
index a828e0b..07a6068 100644
--- a/spec/__snapshots__/OjSerializersVerbatimModuleSyntax.ts.snap
+++ b/spec/__snapshots__/OjSerializersVerbatimModuleSyntax.ts.snap
@@ -1,4 +1,4 @@
-// Typelizer digest c0f49e6c7ece40d4d23624555e33da67
+// Typelizer digest e4b0b8226d1bf89d94bd35bc366e5837
 //
 // DO NOT MODIFY: This file was automatically generated by Typelizer.
 
diff --git a/spec/app/app/serializers/alba/user/author_serializer.rb b/spec/app/app/serializers/alba/user/author_serializer.rb
index 1dcbdc0..0bb4adc 100644
--- a/spec/app/app/serializers/alba/user/author_serializer.rb
+++ b/spec/app/app/serializers/alba/user/author_serializer.rb
@@ -3,7 +3,7 @@ module User
     class AuthorSerializer < BaseSerializer
       typelize_from ::User
 
-      typelize username: [:string, nullable: true]
+      typelize username: [:string, nullable: true, comment: "Author login handle"]
       attributes :id, :username
 
       has_many :posts, resource: PostSerializer, if: ->(u) { u.posts.any? }
diff --git a/spec/app/app/serializers/ams/user/author_serializer.rb b/spec/app/app/serializers/ams/user/author_serializer.rb
index 66f8b72..f8f3abe 100644
--- a/spec/app/app/serializers/ams/user/author_serializer.rb
+++ b/spec/app/app/serializers/ams/user/author_serializer.rb
@@ -3,7 +3,7 @@ module User
     class AuthorSerializer < BaseSerializer
       typelize_from ::User
 
-      typelize username: [:string, nullable: true]
+      typelize username: [:string, nullable: true, comment: "Author login handle"]
       attributes :id, :username
 
       has_many :posts, serializer: PostSerializer, if: ->(u) { u.posts.any? }
diff --git a/spec/app/app/serializers/oj_serializers/user/author_serializer.rb b/spec/app/app/serializers/oj_serializers/user/author_serializer.rb
index 581fb83..eb38938 100644
--- a/spec/app/app/serializers/oj_serializers/user/author_serializer.rb
+++ b/spec/app/app/serializers/oj_serializers/user/author_serializer.rb
@@ -3,7 +3,7 @@ module User
     class AuthorSerializer < BaseSerializer
       typelize_from ::User
 
-      typelize username: [:string, nullable: true]
+      typelize username: [:string, nullable: true, comment: "Author login handle"]
       attributes :id, :username
 
       has_many :posts, serializer: PostSerializer, if: ->(u) { u.posts.any? }
diff --git a/spec/app/config/initializers/typelizer.rb b/spec/app/config/initializers/typelizer.rb
index ec55ab6..9458f13 100644
--- a/spec/app/config/initializers/typelizer.rb
+++ b/spec/app/config/initializers/typelizer.rb
@@ -4,4 +4,6 @@
   ]
 
   c.types_global = %w[Array Date Record]
+
+  c.comments = true
 end