Pull Request Explorer

Summary

Implement node:wasi preview1 compatibility for tests

Adds full WASI preview1 support for Node compatibility tests, enabling 20 new tests to pass and tightening security permissions.

Health Assessment

• • Fast cycle time of 17.6h with a single review and no major rework, indicating a smooth integration of a substantial code addition.

Summary

Upgrade V8 to 14.9 and apply cleanups

This PR updates the V8 engine to version 14.9, applying necessary cleanups and adjustments to ensure compatibility with Deno's runtime and snapshotting behavior, improving performance and stability.

Health Assessment

• • The PR involved a large number of changes across core runtime and tests, with multiple iterations after the initial review, indicating a complex upgrade process.

Summary

Fix https polyfill stack trace check

Ensures Deno's https polyfill correctly identifies HTTPS requests, preventing protocol errors for npm packages that rely on agent-base.

Health Assessment

• • Quick, minimal change merged within 30 minutes with no review friction.

Summary

Fix EventEmitter addAbortListener and errorMonitor

This patch resolves crashes in libraries that rely on the Node events polyfill, ensuring stable operation for Deno users.

Health Assessment

• • Quick, single-commit fix with minimal changes, no rework, fast merge.

Summary

Fix large file read scrambling bug

Ensures accurate file reads for large files, preventing build failures in tools like Vite and Rollup.

Health Assessment

• • Quick, single-file fix resolved a critical file-read bug with minimal review and no downstream impact.

Summary

Emit Network inspector events for node:http

Adds inspector events for outgoing HTTP requests in Node, enabling DevTools to observe traffic.

Health Assessment

• • The PR was merged after a single commit and a 27‑hour cycle time, indicating a straightforward change with minimal review friction.

Summary

Stabilize text imports

Enables stable text imports without requiring the --unstable-raw-imports flag, improving developer experience and reducing friction.

Health Assessment

• • Fast cycle time and minimal rework indicate a smooth review process.

Summary

Expand diagnostics_channel coverage in Node polyfills

Adds comprehensive diagnostics channel emissions for Node compatibility, improving observability and debugging for developers using Deno’s Node polyfills.

Health Assessment

• • The PR was reviewed and merged within 8.4 hours, indicating a smooth review process with minimal friction. The single commit and modest number of files suggest focused changes, while the large line count reflects substantial feature work. Overall, the risk is low and the process efficient.

Summary

Improve worker_threads MessagePort compatibility

Enhances Node compatibility for worker_threads MessagePort, enabling proper message passing and event handling across Deno and Node environments.

Health Assessment

• • Quick approval with minimal iterations indicates a straightforward change that was well understood by reviewers.

Summary

Remove unused dependencies

Reduces build time without affecting binary size, improving developer experience.

Health Assessment

• • Quick 2.6‑hour cycle, minimal review, small maintenance change with no impact on functionality.

Summary

Add KeyObject structured clone support over MessagePort

Enables Deno to correctly handle Node.js KeyObject instances when using structured cloning via MessagePort, improving compatibility with Node.js APIs and enabling secure key handling across workers.

Health Assessment

• • The PR was reviewed and merged within a single day, indicating a straightforward change with minimal friction.

Summary

Fix DNS lookup error handling for falsy hostnames

Align Deno’s DNS lookup behavior with Node 25+, ensuring synchronous error for invalid hostnames and removing deprecated warnings, improving consistency for developers.

Health Assessment

• • Fast turnaround with a single commit, minimal code changes, and no back‑and‑forth reviews, indicating low risk and high confidence in the fix.

Summary

chore: update sys_traits to 0.1.28 and unpin

Updates the sys_traits dependency to 0.1.28 and removes version pinning, ensuring compatibility and reducing maintenance overhead.

Health Assessment

• • Dependency bump with minimal code changes, straightforward review, merged after a single review cycle.

Summary

Emit Network inspector events for WebSocket

Adds WebSocket traffic events to DevTools, improving debugging and monitoring for developers.

Health Assessment

• • Fast review and merge with minimal rework indicate a straightforward feature addition.

Summary

Fix CLI 'why' command for JSR dependencies

Ensures the 'deno why' command correctly resolves and displays dependency chains for JSR packages, improving developer debugging experience.

Health Assessment

• • Quick turnaround with minimal review, indicating a straightforward bug fix.

Summary

Add Network inspector events for fetch

Enables DevTools and inspector clients to observe outgoing HTTP traffic from fetch, improving debugging and monitoring for developers.

Health Assessment

• • Fast review and merge with minimal iterations indicate high confidence in code quality and low risk of regressions.

Summary

Run load hook chain on every builtin require

Ensures that load hooks are invoked for each require of a builtin module, matching Node's behavior and improving compatibility for Deno's module system.

Health Assessment

• • Fast 6.4‑hour cycle with a single review and no post‑review commits indicates a straightforward, low‑risk fix.

Summary

Fix LSP hover panic on unresolved dts imports

Prevents crashes in the language server when users hover over unresolved imports in .d.ts files, improving stability and developer experience.

Health Assessment

• • The PR addressed a single crash scenario with minimal code changes, but the review process took over a day, indicating a slow review cycle yet no significant back‑and‑forth.

Summary

Fix node module hook compatibility issues

Improves Node.js module loading compatibility, ensuring ESM and CommonJS modules load correctly and preventing runtime errors for developers.

Health Assessment

• • Quick resolution with single review, minimal changes, no blockers.

Summary

Lazy-load modules to shrink Deno snapshot

Reduces snapshot size by 27% and eliminates startup parsing of unused JS modules, improving launch performance for most programs.

Health Assessment

• • The PR required multiple rounds of review and many commits, indicating significant rework; the large code churn and long cycle time suggest a high-risk, high-impact change that was ultimately merged after extensive iteration.

Summary

Restore module.registerHooks in Node extension

Reintroduces module.registerHooks support, enabling consistent module hook behavior across CommonJS and ESM, improving compatibility and developer experience.

Health Assessment

• • Large PR with many changes triggered multiple bot comments and required several fixes, indicating high complexity and potential risk.

Summary

Fix TLS client resume compatibility tests

Improves the Node TLS polyfill to match Node client session behavior, enabling accurate TLS resume tests and enhancing security handling.

Health Assessment

• • The PR required multiple iterations and extensive review to address TLS session handling nuances, indicating moderate complexity and risk.

Summary

Buffer Network bodies for inspector commands

Adds a bounded buffer for network request and response bodies, enabling inspector tools to retrieve body data and improving debugging capabilities.

Health Assessment

• • The PR was merged in just over 18 hours with a single review and no additional commits, indicating a smooth, low‑friction process.

Summary

Expose inspector.isEnabled via process.binding

Adds a Node inspector binding so user code can detect debugger state, enabling compatibility tests and future extensions.

Health Assessment

• • Quick turnaround with minimal changes, indicating low complexity and high confidence.

Summary

Implement NodeRuntime notifyWhenWaitingForDisconnect

Adds a CDP command that notifies when a Node session is waiting to disconnect, enabling more accurate debugging. This aligns Deno's inspector behavior with Node.js, improving developer experience.

Health Assessment

• • Fast turnaround with minimal changes, indicating straightforward implementation and quick review.

Summary

Fix DSA keygen for arbitrary modulus length

Enables DSA key generation with any modulus length, improving compatibility with Node.js tests and expanding cryptographic flexibility.

Health Assessment

• • Quick resolution with a single commit and approval, minimal rework and low review friction.

Summary

Enable HTTPS test for node compatibility

Ensures HTTPS requests correctly surface TLS handshake errors, improving reliability for Node compatibility.

Health Assessment

• • Quick merge with minimal changes, indicating low complexity and high confidence.

Summary

Enable node compat test for crypto keygen async RSA

Enables a previously disabled node compatibility test for RSA key generation, ensuring legacy PEM import/export works correctly.

Health Assessment

• • Quick single-commit merge with minimal code changes, indicating low complexity and risk.

Summary

Fix Node socket EOF export and final handling

Corrects socket behavior for EOF and unconnected sockets, ensuring proper event emission and preventing hangs in Deno's Node compatibility layer.

Health Assessment

• • Quick fix with minimal changes, merged within hours, indicating low complexity and high confidence.

Summary

Ignore async-loader node compat tests

Mark deprecated async-loader tests as ignored to prevent noisy failures in the node compatibility suite.

Health Assessment

• • Merged within 3.4 hours with minimal changes, indicating low complexity and risk.

Summary

Enable test-inspector-break-e.js

Adds support for the inspector test that verifies break-e behavior on eval scripts, improving test coverage for Node compatibility.

Health Assessment

• • Fast turnaround with minimal changes; no significant risk or rework.

Summary

Skip node_compat tests requiring JSStream binding

Disables two internal tests that depend on a Node.js internal binding, preventing false failures and keeping the test suite stable.

Health Assessment

• • Quick fix with minimal changes, resolved in under an hour with a single review comment.

Summary

Ignore failing aarch64 tests in node_compat

This change disables tests that fail on aarch64 release builds, ensuring continuous integration runs smoothly across all platforms.

Health Assessment

• • Resolved quickly with minimal changes and a single review, indicating low complexity.

Summary

Fix panic in vm.createContext loop during teardown

Prevents crashes when repeatedly creating VM contexts, ensuring stability for scripts and reducing runtime errors.

Health Assessment

• • Quick fix with minimal changes, approved within an hour, indicating low complexity and high confidence.

Summary

Add Node process debug APIs to Deno polyfill

Adds missing Node debugging APIs to Deno's process polyfill, enabling better debugging support and compatibility with Node-based tooling.

Health Assessment

• • Quick fix with minimal changes, fast review, no rework, low risk.

Summary

Remove failing node_compat test on aarch64

The change removes a test that fails on aarch64, preventing CI failures. This ensures consistent test coverage across all architectures.

Health Assessment

• • Quick fix with minimal changes, resolved in under an hour.

Summary

Fix inspector URL for eval scripts

Ensures Deno inspector reports eval scripts with `[eval]` URL, matching Node.js behavior, enabling Node-compatible tests to pass.

Health Assessment

• • Quick fix with minimal changes, fast review, no blockers.

Summary

Enable 397 Node.js compatibility tests

Adds missing Node.js compatibility tests to the config, expanding coverage across platforms while removing flaky or failing entries to keep CI green.

Health Assessment

• • Rapid AI-assisted iteration added 784 lines to a single config file, quickly resolving platform gating and flaky tests while maintaining CI stability.

Summary

Add Node compile-cache polyfill

Adds compile-cache support for Node compatibility, improving performance and test reliability.

Health Assessment

• • Fast cycle time and single approval indicate smooth review; large code addition but minimal rework.

Summary

Add regression test for process._getActiveHandles

Adds a regression test ensuring Node-compat fix for process._getActiveHandles in exit handler, preventing TypeError and matching Node behavior. This ensures stability for CJS modules that lazy-load node:http and schedule process.exit.

Health Assessment

• • Fast turnaround with no review comments, indicating straightforward regression test.

Summary

Ignore legacy main resolver tests

Disables failing legacy CommonJS main resolver tests to keep the build stable while awaiting a proper implementation.

Health Assessment

• • Fast review and merge with minimal code changes; no blockers or significant rework.

Summary

Add v8.startupSnapshot API polyfill for Node

Adds a polyfill for v8.startupSnapshot, allowing Node modules that depend on snapshot lifecycle to load without throwing errors in Deno. This improves compatibility and developer experience when porting Node code to Deno.

Health Assessment

• • Fast turnaround with immediate approval, minimal rework, and small scope indicates low risk and efficient process.

Summary

Fix per-request async_hooks execution context

Ensures correct async context per request, preventing race conditions and errors in Node compatibility, improving reliability of async operations.

Health Assessment

• • Quick, single-commit fix with no rework; fast review and merge cycle indicates low complexity and minimal risk.

Summary

Fix TLS error messaging and rejection handling

Ensures TLS error messages are compatible with Node's expectations, allowing existing error handling logic to function correctly. Adds robust rejection handling for secure connections, preventing unhandled exceptions and improving stability for Node applications on Deno.

Health Assessment

• • Quick turnaround with minimal rework indicates a straightforward bug fix with low risk.

Summary

Improve HTTP server parser compatibility

Enhances Deno's HTTP server to better match Node.js behavior, improving error handling and request optimization, ensuring compatibility with Node-compatible tests.

Health Assessment

• • The PR required a few iterations to align with Node's behavior, but overall changes were small and resolved quickly.

Summary

Resolve npm entrypoints without types

Fixes a regression in Deno's documentation tool that caused missing declaration errors for npm packages without types. The fix ensures docs correctly reference the package's main entrypoint, improving developer experience.

Health Assessment

• • Quick resolution with minimal rework; single review comment indicates straightforward fix.

Summary

Fix raw socket connect when wrapping TLS

Ensures TLS wrapping preserves raw socket behavior, aligning Deno with Node.js and improving compatibility for network operations.

Health Assessment

• • The PR had a moderate review cycle with a few back‑and‑forth comments but resolved quickly, indicating a straightforward bug fix with minimal risk.

Summary

Fix TLS peer certificate chain completion

Ensures TLS peer certificates are fully resolved from the configured CA bundle, improving security and test coverage.

Health Assessment

• • The PR had a moderate review cycle with a couple of formatting fixes, but overall quick resolution and minimal scope.

Summary

Normalize P-521 SPKI exports

Fixes P-521 EC public key export format to match Node.js, improving interoperability.

Health Assessment

• • PR resolved a key export mismatch with minimal changes and quick review, indicating a straightforward bug fix.

Summary

Fix weak tracking of util.aborted resources

Prevents long‑lived AbortSignal.timeout instances from leaking unresolved promise resolvers, improving memory usage and reliability. Ensures resources are garbage collected even when signals persist.

Health Assessment

• • Quick fix with single review, minimal rework, and small scope indicates low risk.