Changes approach to optional fields

ChangeLog.md

@@ -1,3 +1,8 @@
 # Changelog for aeson-typescript
 
 ## Unreleased changes
+
+## 0.3.0.0
+
+Represents optional fields (according to the Haskell model) as required fields
+with type `A | null` rather than optional fields.

aeson-typescript.cabal

@@ -7,7 +7,7 @@ cabal-version: 1.12
 -- hash: e1e74b37dded848299e515c32291f9f35f71998ce4f89f9a5622d634b197109d
 
 name:           aeson-typescript
-version:        0.2.0.0
+version:        0.3.0.0
 synopsis:       Generate TypeScript definition files from your ADTs
 description:    Please see the README on Github at <https://github.com/codedownio/aeson-typescript#readme>
 category:       Text, Web, JSON

src/Data/Aeson/TypeScript/Formatting.hs

@@ -28,7 +28,7 @@ formatTSDeclarations' :: FormattingOptions -> [TSDeclaration] -> String
 formatTSDeclarations' options declarations = T.unpack $ T.intercalate "\n\n" (fmap (T.pack . formatTSDeclaration options) declarations)
 
 formatTSField :: TSField -> String
-formatTSField (TSField optional name typ) = [i|#{name}#{if optional then "?" else ""}: #{typ}|]
+formatTSField (TSField optional name typ) = [i|#{name}: #{typ}#{if optional then "| null" else ""}|]
 
 getGenericBrackets :: [String] -> String
 getGenericBrackets [] = ""

stack.yaml

@@ -1,5 +1,5 @@
 
-resolver: lts-14.21
+resolver: lts-16.20
 
 packages:
 - .

stack.yaml.lock

@@ -6,7 +6,7 @@
 packages: []
 snapshots:
 - completed:
-    size: 524162
-    url: https://raw.githubusercontent.com/commercialhaskell/stackage-snapshots/master/lts/14/21.yaml
-    sha256: 9a55dd75853718f2bbbe951872b36a3b7802fcd71796e0f25b8664f24e34c666
-  original: lts-14.21
+    size: 532177
+    url: https://raw.githubusercontent.com/commercialhaskell/stackage-snapshots/master/lts/16/20.yaml
+    sha256: 0e14ba5603f01e8496e8984fd84b545a012ca723f51a098c6c9d3694e404dc6d
+  original: lts-16.20