fix(0.x): port recent viem fixes to `AbiItem`, `AbiEvent`, `TypedData`, `Hex`, and `RpcTransport` by jxom · Pull Request #527 · wevm/ox

jxom · 2026-10-24T02:09:56Z

Backports #526 to 0.x, adapted to the 0.x code and in sync with viem main at 2867b2a. It also includes #516, which 0.x never received.

Fix	`0.x` change
wevm/viem#5240	`TypedData.extractEip712DomainTypes` keeps an empty `version`. Same as `main`.
wevm/viem#5283	`Hex.assert` / `Hex.validate` `even` option. Same as `main`.
wevm/viem#5281	`AbiItem.fromAbi` array overload resolution, tuple object args read by component name, and empty-array ambiguity for `address[]` vs `string[]`/`bytes[]`. Same as `main`, keeping the inline regexes of `0.x`.
wevm/viem#5238, wevm/viem#5280	`AbiEvent.assertArgs`: indexed `string` args never matched, since `Hash.keccak256(Bytes)` returns bytes on `0.x`. They now hash to hex, as on `main`. Non-indexed `string`/`bytes` now match by value, and `bytes`/`bytesN` match in either hex case. `0.x` has no `extractLogs`, so only `assertArgs` changes.
wevm/viem#5200	`RpcTransport.fromHttp` applies `timeout` to the response body. It also keeps the timeout when `fetchOptions.signal` is set, using the `AbortSignal.any` composition from `main`.
#516	Cherry-picked `normalizeSignature` fix (keeps the first parameter after `(` ).
#414	Ported the docgen `Variable` link case from `main`. Without it, every `0.x` docs deployment has failed since #509.

Not included: the Signature.toHex padding from main. 0.x stores r/s as bigints and already serializes them with Hex.fromNumber(…, { size: 32 }).

Validation: pnpm check, pnpm check:types, pnpm check:tsdoc, pnpm docs:gen, and pnpm --filter site build pass. The changed suites pass in the core project without Anvil global setup, except existing tests that need a local Anvil node, which wasn't available. The new AbiEvent, AbiItem, and RpcTransport tests were confirmed to fail without their fixes.

🤖 Generated with Claude Code

https://claude.ai/code/session_0133zgX2g8oLCoH4KuY8tM9b

Ports wevm/viem#5240. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_0133zgX2g8oLCoH4KuY8tM9b

Ports wevm/viem#5283. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_0133zgX2g8oLCoH4KuY8tM9b

Ports wevm/viem#5281. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_0133zgX2g8oLCoH4KuY8tM9b

Ports wevm/viem#5238 and wevm/viem#5280. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_0133zgX2g8oLCoH4KuY8tM9b

…ith a caller signal Ports wevm/viem#5200. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_0133zgX2g8oLCoH4KuY8tM9b

(cherry picked from commit 36dce4a)

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_0133zgX2g8oLCoH4KuY8tM9b

vercel · 2026-10-24T02:10:02Z

The latest updates on your projects. Learn more about Vercel for GitHub.

Project	Deployment	Actions	Updated
ox	Ready	Preview	Oct 25, 2026 11:47pm UTC

chatgpt-codex-connector · 2026-10-24T02:10:13Z

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📝 Code Review	✅ Completed 2026-10-25T23:43:47.299160Z	`1e4ee6b`	New commits

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pkg-pr-new · 2026-10-24T02:10:57Z

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chatgpt-codex-connector · 2026-10-24T02:15:52Z

+
+            // Read the body within the timeout too, so a response that stalls
+            // after its headers cannot hang the request.
+            const data = await (async () => {


Preserve caller aborts while reading the response body

When response headers have arrived but response.json() or response.text() is still pending, aborting fetchOptions.signal now rejects the body read with AbortError inside promise.withTimeout; that helper converts every AbortError into Promise.TimeoutError. Before this change the body was read outside the timeout wrapper, so this phase propagated the caller's abort normally. Distinguish the timeout controller from the caller signal so user cancellation is not reported as a timeout.

Useful? React with 👍 / 👎.

Keeping this as is. A caller abort already rejects with Promise.TimeoutError before the response headers arrive, and the existing options: signal test asserts that. Reading the body inside withTimeout gives the body phase the same behavior. Reporting caller aborts separately would change promise.withTimeout, and with it the abort error this transport has always returned. That's out of scope for this backport, and main behaves the same way.

Generated by Claude Code

…m.fromAbi` overloads Syncs with the merged wevm/viem#5281: tuple object args are read by component name, and an empty array is ambiguous for `address[]` vs `string[]`/`bytes[]`. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_0133zgX2g8oLCoH4KuY8tM9b

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_0133zgX2g8oLCoH4KuY8tM9b

Ports the `Variable` case of `getLinkForApiItem` from `main` (#414). Without it, the `{@link ox#AccountConfig.maxSignatures}` reference added in #509 fails `docs:gen` and every `0.x` docs deployment. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_0133zgX2g8oLCoH4KuY8tM9b

jxom · 2026-10-25T23:30:12Z

The Vercel deployment failure isn't caused by this PR. Every 0.x docs deployment has failed since #509 (including #519 and the release #520), and pnpm docs:gen fails the same way on unmodified 0.x. The cause is Missing URL structure for Variable: the 0.x docgen can't build a link to {@link ox#AccountConfig.maxSignatures}, which is a constant. bb55721 ports the two-line Variable case of getLinkForApiItem from main (#414). With it, pnpm docs:gen and pnpm --filter site build both pass locally on this branch.

Generated by Claude Code

…Transport.fromHttp` `AbortSignal.any` is missing on Node < 18.17 and older browsers, which the 0.x line supports. There, the transport now uses the caller signal alone, as it did before, instead of throwing. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_0133zgX2g8oLCoH4KuY8tM9b

…Transport.fromHttp` Matches the 0.x backport (#527): runtimes without `AbortSignal.any` (Node < 18.17, older browsers) use the caller signal alone instead of throwing. Also aligns the `AbiEvent.assertArgs` test and the `getComponentValue` comment with 0.x. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_0133zgX2g8oLCoH4KuY8tM9b

Matches the main-branch test in #526. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_0133zgX2g8oLCoH4KuY8tM9b

…ypedData`, `Hex`, and `RpcTransport` (#526) * fix: keep empty `version` in `TypedData.extractEip712DomainTypes` Ports wevm/viem#5240. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_0133zgX2g8oLCoH4KuY8tM9b * feat: add `even` option to `Hex.assert` and `Hex.validate` Ports wevm/viem#5283. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_0133zgX2g8oLCoH4KuY8tM9b * fix: left-pad short `r` and `s` in `Signature.toHex` Ports wevm/viem#5279. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_0133zgX2g8oLCoH4KuY8tM9b * fix: array overload resolution in `AbiItem.fromAbi` Ports wevm/viem#5281. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_0133zgX2g8oLCoH4KuY8tM9b * fix: `AbiEvent.assertArgs` and `AbiEvent.extractLogs` `args` matching Ports wevm/viem#5280. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_0133zgX2g8oLCoH4KuY8tM9b * fix: apply `RpcTransport.fromHttp` timeout to the response body Ports wevm/viem#5200. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_0133zgX2g8oLCoH4KuY8tM9b * fix: read tuple object args by name and match empty arrays in `AbiItem.fromAbi` overloads Syncs with the merged wevm/viem#5281: tuple object args are read by component name, and an empty array is ambiguous for `address[]` vs `string[]`/`bytes[]`. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_0133zgX2g8oLCoH4KuY8tM9b * fix: keep the caller signal when `AbortSignal.any` is missing in `RpcTransport.fromHttp` Matches the 0.x backport (#527): runtimes without `AbortSignal.any` (Node < 18.17, older browsers) use the caller signal alone instead of throwing. Also aligns the `AbiEvent.assertArgs` test and the `getComponentValue` comment with 0.x. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_0133zgX2g8oLCoH4KuY8tM9b --------- Co-authored-by: Claude <noreply@anthropic.com>

claude and others added 7 commits October 24, 2026 02:03

fix: keep empty version in TypedData.extractEip712DomainTypes

50ef5fa

Ports wevm/viem#5240. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_0133zgX2g8oLCoH4KuY8tM9b

feat: add even option to Hex.assert and Hex.validate

10a777a

Ports wevm/viem#5283. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_0133zgX2g8oLCoH4KuY8tM9b

fix: array overload resolution in AbiItem.fromAbi

f97c17e

Ports wevm/viem#5281. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_0133zgX2g8oLCoH4KuY8tM9b

fix: AbiEvent.assertArgs string and bytes matching

3eaba0f

Ports wevm/viem#5238 and wevm/viem#5280. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_0133zgX2g8oLCoH4KuY8tM9b

fix: apply RpcTransport.fromHttp timeout to the response body and w…

a08284e

…ith a caller signal Ports wevm/viem#5200. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_0133zgX2g8oLCoH4KuY8tM9b

fix: keep first parameter after ( in normalizeSignature (#516)

181d72d

(cherry picked from commit 36dce4a)

test: format Hex and RpcTransport tests

f470db6

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_0133zgX2g8oLCoH4KuY8tM9b

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jxom mentioned this pull request Oct 24, 2026

fix: port recent viem fixes to AbiItem, AbiEvent, Signature, TypedData, Hex, and RpcTransport #526

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fix: use a line comment for getComponentValue to satisfy check:tsdoc

d9b1b3a

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_0133zgX2g8oLCoH4KuY8tM9b

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test: restore AbortSignal.any by property descriptor

1e4ee6b

Matches the main-branch test in #526. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_0133zgX2g8oLCoH4KuY8tM9b

jxom merged commit b0588e1 into 0.x Oct 25, 2026
13 of 14 checks passed

jxom deleted the jxom/happy-pascal-cptf94-0.x branch October 25, 2026 23:43

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chore: version packages #528

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fix(0.x): port recent viem fixes to `AbiItem`, `AbiEvent`, `TypedData`, `Hex`, and `RpcTransport` - #527

fix(0.x): port recent viem fixes to `AbiItem`, `AbiEvent`, `TypedData`, `Hex`, and `RpcTransport`#527
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