What is the role of BuildArtifact objects in Bun's bundler

Role of BuildArtifact Objects

In Bun's bundler, `BuildArtifact` objects play a crucial role in representing the output of the bundling process. Here are the key points about `BuildArtifact` objects:

- The `Bun.build` function returns a `Promise`, where `BuildOutput` contains an `outputs` property that is an array of `BuildArtifact` objects[1][2].

- Each `BuildArtifact` represents a file generated by the bundler, such as the final bundled JavaScript file, CSS files, or other assets[1].

- `BuildArtifact` implements the `Blob` interface, allowing the artifacts to be passed directly into HTTP APIs like `new Response()` in Bun's runtime[1][2].

- The Bun runtime provides special pretty-printing for `BuildArtifact` objects to make debugging easier when logging them to the console[1][2].

- For example, after running `Bun.build`, you can return a new HTTP response with the bundled artifact:

js
const build = Bun.build({/* */});
const artifact = build.outputs;
return new Response(artifact);

So in summary, `BuildArtifact` objects encapsulate the output of the bundling process, providing a convenient way to work with the generated files both in the bundler and the runtime. Their `Blob` interface enables seamless integration with Bun's HTTP server APIs.