Add JSON serialize/deserialize support for JavaScript (#180)

* Add JSON serialize/deserialize support for JavaScript

* Update changelog

Author: aslakhellesoy

CHANGELOG.md

@@ -8,6 +8,8 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 ## [Unreleased]
 ### Added
 - [Java] Enabled reproducible builds
+- [JavaScript] Added `ParameterType.builtin`. This is to allow JSON serialization of only the non-builtin parameter types.
+
 ## [16.0.1] - 2022-11-06
 ### Fixed
 - [JavaScript] The `ParameterType` constructor's `transform`, `useForSnippets` and `preferForRegexpMatch` should be optional. ([#178](https://github.com/cucumber/cucumber-expressions/pull/178))

javascript/src/ParameterType.ts

@@ -49,14 +49,16 @@ export default class ParameterType<T> {
    * @param transform {Function} function transforming string to another type. May be null.
    * @param useForSnippets {boolean} true if this should be used for snippets. Defaults to true.
    * @param preferForRegexpMatch {boolean} true if this is a preferential type. Defaults to false.
+   * @param builtin whether or not this is a built-in type
    */
   constructor(
     public readonly name: string | undefined,
     regexps: RegExps,
     public readonly type: Constructor<T> | Factory<T> | null,
     transform?: (...match: string[]) => T | PromiseLike<T>,
     public readonly useForSnippets?: boolean,
-    public readonly preferForRegexpMatch?: boolean
+    public readonly preferForRegexpMatch?: boolean,
+    public readonly builtin?: boolean
   ) {
     if (transform === undefined) {
       transform = (s) => s as unknown as T

javascript/src/defineDefaultParameterTypes.ts

@@ -15,6 +15,7 @@ export default function defineDefaultParameterTypes(registry: DefinesParameterTy
       Number,
       (s) => (s === undefined ? null : Number(s)),
       true,
+      true,
       true
     )
   )
@@ -25,11 +26,12 @@ export default function defineDefaultParameterTypes(registry: DefinesParameterTy
       Number,
       (s) => (s === undefined ? null : parseFloat(s)),
       true,
-      false
+      false,
+      true
     )
   )
   registry.defineParameterType(
-    new ParameterType('word', WORD_REGEXP, String, (s) => s, false, false)
+    new ParameterType('word', WORD_REGEXP, String, (s) => s, false, false, true)
   )
   registry.defineParameterType(
     new ParameterType(
@@ -38,11 +40,12 @@ export default function defineDefaultParameterTypes(registry: DefinesParameterTy
       String,
       (s1, s2) => (s1 || s2 || '').replace(/\\"/g, '"').replace(/\\'/g, "'"),
       true,
-      false
+      false,
+      true
     )
   )
   registry.defineParameterType(
-    new ParameterType('', ANONYMOUS_REGEXP, String, (s) => s, false, true)
+    new ParameterType('', ANONYMOUS_REGEXP, String, (s) => s, false, true, true)
   )
 
   registry.defineParameterType(
@@ -52,7 +55,8 @@ export default function defineDefaultParameterTypes(registry: DefinesParameterTy
       Number,
       (s) => (s === undefined ? null : parseFloat(s)),
       false,
-      false
+      false,
+      true
     )
   )
 
@@ -63,7 +67,8 @@ export default function defineDefaultParameterTypes(registry: DefinesParameterTy
       String,
       (s) => (s === undefined ? null : s),
       false,
-      false
+      false,
+      true
     )
   )
 
@@ -74,7 +79,8 @@ export default function defineDefaultParameterTypes(registry: DefinesParameterTy
       Number,
       (s) => (s === undefined ? null : Number(s)),
       false,
-      false
+      false,
+      true
     )
   )
 
@@ -85,7 +91,8 @@ export default function defineDefaultParameterTypes(registry: DefinesParameterTy
       Number,
       (s) => (s === undefined ? null : Number(s)),
       false,
-      false
+      false,
+      true
     )
   )
 
@@ -96,7 +103,8 @@ export default function defineDefaultParameterTypes(registry: DefinesParameterTy
       Number,
       (s) => (s === undefined ? null : Number(s)),
       false,
-      false
+      false,
+      true
     )
   )
 
@@ -107,7 +115,8 @@ export default function defineDefaultParameterTypes(registry: DefinesParameterTy
       BigInt,
       (s) => (s === undefined ? null : BigInt(s)),
       false,
-      false
+      false,
+      true
     )
   )
 }