use plugin with macro

[frozen kettle]

I met an issue where plugin is not loaded(no effect) when building with macros.

The plugin register

build.onLoad({filter: /\.email.svelte$/})
build.onResolve({filter:/\.email.svelte&email$/})

bunfig.toml

preload = ["./src/loadPlugin.ts"]

loadPlugin.ts

console.log("loading")

plugin(svelteEmailBunPlugin)

code

import * as Email from "./Test.email.svelte&email"

import {render} from "svelte/server";


export function prerender() {
    const r = render(Email.default, {
        props: {
            name: "world",
            message: "hello"
        }
    })

    return r.body //  r.css
}

import {prerender} from "./prerenderTest.ts" with {type: "macro"}
console.log(prerender())

Bun throws error

Error importing macro
error: Cannot find module "./Test.email.svelte&email"

It looks like plugin is not taking effect while build with macro.
The code works fine without with {type: "macro"}, however I'd like to have the email string at build time instead of runtime.

[hollow mauve]

I think the plugin get executed at runtime

but macro is a build time thing

so you need to use plugins at build time

but this is likely a bug

[frozen kettle]

I have this script build and executed, normal build with Bun.build can resolve the .email.svelte without any issue. Build with macro cause the issue.

[hollow mauve]

My guess is that prerender() got executed at build time and the preload code was not executed
so it just failed

[frozen kettle]

This script I use to compile loads the plugin

maybe the plugin is not loaded during macro build time?

[hollow mauve]

plugin() runs after build time lol

[frozen kettle]

But without macro, it builds fine

[hollow mauve]

macros run at build time that's why

[frozen kettle]

The command bun run test runs the bundled script

"scripts": {
    "build": "bun run compile.ts",
    "test": "bun run dist/run.js"
  }

[hollow mauve]

so basically the plugin get loaded after the macro

[hollow mauve]

so this one also doesn't work?

[frozen kettle]

with macro doesn't work

[hollow mauve]

yea maybe macros always run before plugins

¯_(ツ)_/¯

[frozen kettle]

But the plugin is loaded before the build

I added everywhere, preload, before Bun.build, the plugins array

Is this expected behavior or bug?

[hollow mauve]

You are building another file so

¯_(ツ)_/¯

[hollow mauve]

idk if this is a bug or not
it looks like it was meant to work like that

[frozen kettle]

So I just can't do that?