Bump @assemblyscript/loader from 0.17.12 to 0.20.0

[dependabot[bot]]

Bumps @assemblyscript/loader from 0.17.12 to 0.20.0.

Release notes

Sourced from @​assemblyscript/loader's releases.

v0.20.0

ECMAScript modules

Fixes #1306. Migrating our dependencies to ESM made it possible to migrate the compiler and frontend as well, alongside internal utility and scripts. This is a breaking change for consumers of the compiler API (i.e. transforms), but not for command line usage. Viable strategies to account for the changes are:

1. Migrate any code utilizing compiler APIs to ESM as well:

   import assemblyscript from "assemblyscript";
   ...
   

2. Utilize a dynamic import while consuming code remains in its current module format:

   const assemblyscript = (await import("assemblyscript")).default;
   ...
   // or
   import("assemblyscript").then(({ default: assemblyscript }) => { ... });
   

Running the compiler on the Web with ESM

Prior, we provided a browser SDK that made use of the AMD module format to load the components necessary to run the compiler on the Web. With the switch to ESM, it is not necessary anymore to provide a separate SDK, but native browser functionality can now be used to utilize the compiler in browsers. To ease the transition, the build system outputs an example dist/web.html template with all the right versions in <script ...> tags. Alongside, it also sets up es-module-shims for import maps support as is currently necessary to support browsers other than those based on Chromium. General outline is:

<script async src="url/to/es-module-shims"></script>
<script type="importmap">
{
  "imports": {
    "binaryen": "url/to/binaryen",
    "long": "url/to/long",
    "assemblyscript": "url/to/assemblyscript"
  }
}
</script>
<script type="module">
import asc from "url/to/asc";
...
</script>

Asynchronous compiler APIs

Prior, programmatically executing for example asc.main was synchronous despite accepting a callback. The relevant APIs are now asynchronous, making use of the opportunity to perform asynchronous I/O under the hood, and as such return a promise with the compilation result instead of accepting a callback.

const { error, stdout, stderr } = await asc.main([ ... ], { ... });
...

... (truncated)

Commits

• a7c87e6 BREAKING CHANGE: ESM, JS bindings, triple equals and general cleanup (#2157)
• 81d5898 fix: loader: Consider .byteLength of slices when obtaining typed arrays (#2162)
• 587c414 Cherry pick some loader string test cases (#2050)
• 8eaa44a feat: add ability to create arrays with capacity for __newArray (#2024)
• b0549e0 feat: Add __getFunction method for loader (#2037)
• 5df7318 feat: add __newArrayBuffer() to the loader (#1965)
• 3564848 Add string conversion error modes (#1902)
• 7e20ad2 Fix: Use F_NOEXPORTRUNTIME if __rtti_base is missing (#1808)
• 92bc7dd fix: Fix premature collect of backing buffers in loader's __newArray
• b857944 Rewrite runtime, switch to tracing GC and bootstrap (#1559)
• See full diff in compare view

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[dependabot[bot]]

Superseded by #316.