From a6796ad8deb096f32512d904c3e3898d2078fada Mon Sep 17 00:00:00 2001
From: Asher Gomez <ashersaupingomez@gmail.com>
Date: Mon, 10 Oct 2022 18:43:53 +1100
Subject: [PATCH 1/2] feat(crypto): support ReadableStreams in digest

---
 crypto/mod.ts  | 10 +++++++++-
 crypto/test.ts | 27 +++++++++++++++++++++++++++
 2 files changed, 36 insertions(+), 1 deletion(-)

diff --git a/crypto/mod.ts b/crypto/mod.ts
index c85ee6e936b1..c2623bddd729 100644
--- a/crypto/mod.ts
+++ b/crypto/mod.ts
@@ -107,9 +107,17 @@ const stdCrypto: StdCrypto = ((x) => x)({
   subtle: {
     ...webCrypto.subtle,
 
+    /**
+     * Polyfills stream support until the Web Crypto API does so:
+     * @see {@link https://github.com/wintercg/proposal-webcrypto-streams}
+     */
     async digest(
       algorithm: DigestAlgorithm,
-      data: BufferSource | AsyncIterable<BufferSource> | Iterable<BufferSource>,
+      data:
+        | BufferSource
+        | AsyncIterable<BufferSource>
+        | Iterable<BufferSource>
+        | ReadableStream<BufferSource>,
     ): Promise<ArrayBuffer> {
       const { name, length } = normalizeAlgorithm(algorithm);
       const bytes = bufferSourceBytes(data);
diff --git a/crypto/test.ts b/crypto/test.ts
index d5282348827d..7ec6b7cabb61 100644
--- a/crypto/test.ts
+++ b/crypto/test.ts
@@ -25,6 +25,21 @@ Deno.test(
       expectedDigest,
     );
 
+    assertEquals(
+      toHexString(
+        await stdCrypto.subtle.digest(
+          "SHA-384",
+          new ReadableStream({
+            start(controller) {
+              controller.enqueue(inputBytes);
+              controller.close();
+            },
+          }),
+        ),
+      ),
+      expectedDigest,
+    );
+
     assertEquals(
       toHexString(
         await stdCrypto.subtle.digest(
@@ -126,6 +141,18 @@ Deno.test("[crypto/digest] Should return an ArrayBuffer", async () => {
       })(),
     )) instanceof ArrayBuffer,
   );
+
+  assert(
+    (await stdCrypto.subtle.digest(
+      "BLAKE3",
+      new ReadableStream({
+        start(controller) {
+          controller.enqueue(inputBytes);
+          controller.close();
+        },
+      }),
+    )) instanceof ArrayBuffer,
+  );
 });
 
 Deno.test("[crypto/digest] Should not ignore length option", async () => {

From a0b93ebb4bfd0258ef044c4e611034c23c64a0bd Mon Sep 17 00:00:00 2001
From: Asher Gomez <ashersaupingomez@gmail.com>
Date: Tue, 18 Oct 2022 05:29:18 +1100
Subject: [PATCH 2/2] remove: ReadableStream as input type for digest

---
 crypto/mod.ts | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/crypto/mod.ts b/crypto/mod.ts
index c2623bddd729..280cc6b8b99f 100644
--- a/crypto/mod.ts
+++ b/crypto/mod.ts
@@ -113,11 +113,7 @@ const stdCrypto: StdCrypto = ((x) => x)({
      */
     async digest(
       algorithm: DigestAlgorithm,
-      data:
-        | BufferSource
-        | AsyncIterable<BufferSource>
-        | Iterable<BufferSource>
-        | ReadableStream<BufferSource>,
+      data: BufferSource | AsyncIterable<BufferSource> | Iterable<BufferSource>,
     ): Promise<ArrayBuffer> {
       const { name, length } = normalizeAlgorithm(algorithm);
       const bytes = bufferSourceBytes(data);