From 3d802096095bde4d7bf40cdfa319f488286046f4 Mon Sep 17 00:00:00 2001
From: Warren Gallagher <warren@affinitiquest.io>
Date: Fri, 6 Jun 2025 15:22:52 -0400
Subject: [PATCH 1/2] feat: allow optional customization of cbor encode/decode
 options

Add new functions to src/cbor/index that allow getting and setting of
default cbor encode/decode options.

Enhance cbor tests to demonstrate successful use in how maps get encoded.
---
 __tests__/cbor.tests.ts | 14 +++++++++++++-
 src/cbor/index.ts       | 10 +++++++++-
 2 files changed, 22 insertions(+), 2 deletions(-)

diff --git a/__tests__/cbor.tests.ts b/__tests__/cbor.tests.ts
index 8781dc1..c794473 100644
--- a/__tests__/cbor.tests.ts
+++ b/__tests__/cbor.tests.ts
@@ -1,6 +1,6 @@
 import { hex } from 'buffer-tag';
 
-import { cborDecode, cborEncode, DataItem } from '../src/cbor';
+import { cborDecode, cborEncode, DataItem, getCborEncodeDecodeOptions, setCborEncodeDecodeOptions } from '../src/cbor';
 
 describe('cbor', () => {
   it('should properly decode a nested map', () => {
@@ -16,6 +16,18 @@ describe('cbor', () => {
     const decoded = cborDecode(encoded);
     const reEncode = cborEncode(decoded);
     expect(reEncode.toString('hex')).toBe(encoded.toString('hex'));
+    expect(encoded[3].toString(16)).toBe('b9'); // Large Map
+  });
+
+  it('should properly encoded and decoded maps using variableMapSize=true', () => {
+    const options = getCborEncodeDecodeOptions();
+    options.variableMapSize = true;
+    setCborEncodeDecodeOptions(options);
+    const encoded = cborEncode(DataItem.fromData({ foo: 'baz' }));
+    const decoded = cborDecode(encoded);
+    const reEncode = cborEncode(decoded);
+    expect(reEncode.toString('hex')).toBe(encoded.toString('hex'));
+    expect(encoded[3].toString(16)).toBe('a1'); // Map with one item
   });
 
   it('should properly encoded and decoded with arrays', () => {
diff --git a/src/cbor/index.ts b/src/cbor/index.ts
index 4cc0f5a..18fcc03 100644
--- a/src/cbor/index.ts
+++ b/src/cbor/index.ts
@@ -33,7 +33,7 @@ export class DateOnly extends Date {
   }
 }
 
-const encoderDefaults: Options = {
+let encoderDefaults: Options = {
   tagUint8Array: false,
   useRecords: false,
   mapsAsObjects: false,
@@ -59,6 +59,14 @@ addExtension({
   decode: (isoStringDate: any): Object => new DateOnly(isoStringDate),
 });
 
+export const getCborEncodeDecodeOptions = () : Options => {
+  return encoderDefaults;
+};
+
+export const setCborEncodeDecodeOptions = (options: Options) : void => {
+  encoderDefaults = options;
+};
+
 export const cborDecode = (
   input: Buffer | Uint8Array,
   options: Options = encoderDefaults,

From 4b74bb8228e5836a47d3968288fa820780cd15cf Mon Sep 17 00:00:00 2001
From: Warren Gallagher <warren@affinitiquest.io>
Date: Mon, 9 Jun 2025 07:41:29 -0400
Subject: [PATCH 2/2] feat: add export of functions getCborEncodeDecodeOptions,
 setCborEncodeDecodeOptions from src/cbor/inde.ts to

---
 src/index.ts | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/index.ts b/src/index.ts
index 9299221..0661f48 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -1,3 +1,4 @@
+export { getCborEncodeDecodeOptions, setCborEncodeDecodeOptions } from './cbor';
 export { Verifier } from './mdoc/Verifier';
 export { parse } from './mdoc/parser';
 export { DataItem } from './cbor/DataItem';