From f4b1b96bc0f5b1fe1ce4bda95fb6cb8e00ef4296 Mon Sep 17 00:00:00 2001
From: Chris Wanstrath <chris@ozmm.org>
Date: Fri, 7 Nov 2025 19:36:22 -0800
Subject: [PATCH] json.encode & json.decode

---
 src/prelude/index.ts           |  2 ++
 src/prelude/json.ts            |  7 +++++++
 src/prelude/tests/json.test.ts | 17 +++++++++++++++++
 3 files changed, 26 insertions(+)
 create mode 100644 src/prelude/json.ts
 create mode 100644 src/prelude/tests/json.test.ts

diff --git a/src/prelude/index.ts b/src/prelude/index.ts
index 488414b..a3966e1 100644
--- a/src/prelude/index.ts
+++ b/src/prelude/index.ts
@@ -6,6 +6,7 @@ import {
 } from 'reefvm'
 
 import { dict } from './dict'
+import { json } from './json'
 import { load } from './load'
 import { list } from './list'
 import { math } from './math'
@@ -13,6 +14,7 @@ import { str } from './str'
 
 export const globals = {
   dict,
+  json,
   load,
   list,
   math,
diff --git a/src/prelude/json.ts b/src/prelude/json.ts
new file mode 100644
index 0000000..c54a908
--- /dev/null
+++ b/src/prelude/json.ts
@@ -0,0 +1,7 @@
+export const json = {
+  encode: (s: any) => JSON.stringify(s),
+  decode: (s: string) => JSON.parse(s),
+}
+
+  ; (json as any).parse = json.decode
+  ; (json as any).stringify = json.encode
\ No newline at end of file
diff --git a/src/prelude/tests/json.test.ts b/src/prelude/tests/json.test.ts
new file mode 100644
index 0000000..ef11a93
--- /dev/null
+++ b/src/prelude/tests/json.test.ts
@@ -0,0 +1,17 @@
+import { expect, describe, test } from 'bun:test'
+
+describe('json', () => {
+  test('json.decode', () => {
+    expect(`json.decode '[1,2,3]'`).toEvaluateTo([1, 2, 3])
+    expect(`json.decode '"heya"'`).toEvaluateTo('heya')
+    expect(`json.decode '[true, false, null]'`).toEvaluateTo([true, false, null])
+    expect(`json.decode '{"a": true, "b": false, "c": "yeah"}'`).toEvaluateTo({ a: true, b: false, c: "yeah" })
+  })
+
+  test('json.encode', () => {
+    expect(`json.encode [1 2 3]`).toEvaluateTo('[1,2,3]')
+    expect(`json.encode 'heya'`).toEvaluateTo('"heya"')
+    expect(`json.encode [true false null]`).toEvaluateTo('[true,false,null]')
+    expect(`json.encode [a=true b=false c='yeah'] | json.decode`).toEvaluateTo({ a: true, b: false, c: "yeah" })
+  })
+})
\ No newline at end of file