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https://github.com/dario-piotrowicz/cloudflare-workers-webassembly-support-test

Last synced: 8 days ago
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Host: GitHub
URL: https://github.com/dario-piotrowicz/cloudflare-workers-webassembly-support-test
Owner: dario-piotrowicz
Created: 2024-05-05T18:19:33.000Z (6 months ago)
Default Branch: main
Last Pushed: 2024-05-05T18:21:05.000Z (6 months ago)
Last Synced: 2024-05-05T19:31:32.986Z (6 months ago)
Language: JavaScript
Size: 735 KB
Stars: 0
Watchers: 1
Forks: 0
Open Issues: 0
Metadata Files:
- Readme: README.md

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README

        # Cloudflare Workers - `WebAssembly` support test

Quick test to see what instantiation methods are supported by workerd (/Cloudflare workers)

> Note: check the git history so see the manual checks I did

## Results

| Method                             | Variant                       | Works  |

|------------------------------------|-------------------------------|--------|

| `WebAssembly.instantiate`          | with already-compiled modules | ✅ Yes |

| `WebAssembly.instantiate`          | with binary code              | ❌ No  |

| `WebAssembly.instantiateStreaming` |                               | ❌ No  |

| `WebAssembly.compile`              |                               | ❌ No  |

| `WebAssembly.compileStreaming`     |                               | ❌ No  |

## Errors

Although the results above are expected, I noticed that workerd provides a valid error message for `instantiate` and `compile`:

![code generation disallowed error](./code-generation-disallowed.png)

However `instantiateStreaming` and `compileStreaming` provide type errors which seem incorrect to me (and that they should be aligned with the above):

![code generation disallowed error](./instantiateStreaming-not-a-function.png)

![code generation disallowed error](./compileStreaming-not-a-function.png)