Deno upstream tracking items

[thescientist13]

Overview

As part of adding Deno runtime support, a couple work arounds were needed

WebAssembly / Node Bindings

When a synchronous registerHooks() load hook is present, Deno can attempt to compile Rollup’s native .node binding as JavaScript:

SyntaxError: Invalid or unexpected token

Greenwood redirects rollup to @rollup/wasm-node under Deno as a workaround.

• Module.registerHooks({ load }) makes CJS require() compile .node native addons as JavaScript denoland/deno#36240
• fix(ext/node): route .node/.json through extension handlers under load hooks denoland/deno#36243

---

Had to document / setup installation of @rollup/wasm-node while we wait for this issue to be resolved - denoland/deno#36243. when this is resolved we can

1. remove dependency management in CLI package.json
2. remove the setup in the init CLI
3. Update website documentation and CLI README.md

CommonJS JSON imports receive an undefined format

For JSON loaded through require(), Deno’s loader-hook context and the default nextLoad() result can both leave format undefined. The JSON source is then compiled as JavaScript instead of being handled by the JSON extension handler.

Greenwood explicitly returns format: "json" for CommonJS JSON loads.

Tracking:

• Module.registerHooks never populates format, so hooks cannot tell CommonJS from ESM denoland/deno#36841
• fix(node): expose module format in registerHooks denoland/deno#36849
• fix(ext/node): route .node/.json through extension handlers under load hooks denoland/deno#36243

(UNTRACKED) Preload modules do not propagate to node:worker_threads

Modules loaded using --import or --preload in the main process are not automatically evaluated in workers created through node:worker_threads. Greenwood publishes its registration module through worker environment data and explicitly imports it in route workers.

(UNTRACKED) Bare CSS package imports are validated before Greenwood’s load hook

Deno can reject a bare package CSS import before Greenwood’s load hook has an opportunity to transform it:

The import attribute type of "css" is unsupported
hint: run with --unstable-raw-imports

Greenwood resolves bare specifiers early and marks URLs handled by its resource loader so CSS can be transformed before Deno’s validation.

Early node:worker_threads messages can be dropped

If the parent posts a message before the worker attaches its parentPort listener, Deno can drop the message instead of queuing it. Greenwood starts its worker messaging protocol synchronously while loader initialization continues separately.