Sapphire - Imagine a framework•8mo ago

Compiling with SWC

I've been trying to compile my code with SWC and it is finding errors in a couple of my files that were created using the CLI. Those files are src/commands/General/Ping.ts and src/listeners/ready.ts These are the errors that are presented:

> rimraf dist && swc ./src -d dist


  × Expression expected
   ╭─[src/listeners/ready.ts:4:1]
 4 │
 5 │ const dev = process.env.NODE_ENV !== 'production';
 6 │
 7 │ @ApplyOptions<Listener.Options>({ once: true })
   · ─
 8 │ export class UserEvent extends Listener {
 9 │    private readonly style = dev ? yellow : blue;
   ╰────


Caused by:
    Syntax Error

  × Expression expected
   ╭─[src/commands/General/Ping.ts:2:1]
 2 │ import { isMessageInstance } from '@sapphire/discord.js-utilities';
 3 │ import { Command } from '@sapphire/framework';
 4 │
 5 │ @ApplyOptions<Command.Options>({
   · ─
 6 │    description: 'Returns the round trip and heartbeat'
 7 │ })
 8 │ export class UserCommand extends Command {
   ╰────


Caused by:
    Syntax Error
Successfully compiled: 11 files with swc (23.51ms)
Failed to compile 2 files with swc.
Error: Failed to compile:
src/listeners/ready.ts
src/commands/General/Ping.ts
    at initialCompilation (/home/demonicpagan/development/nodejs/discordBots/discord-trakt/node_modules/.pnpm/@swc+cli@0.1.62_@swc+core@1.3.95/node_modules/@swc/cli/lib/swc/dir.js:163:19)
    at async dir (/home/demonicpagan/development/nodejs/discordBots/discord-trakt/node_modules/.pnpm/@swc+cli@0.1.62_@swc+core@1.3.95/node_modules/@swc/cli/lib/swc/dir.js:228:5)
 ELIFECYCLE  Command failed with exit code 1.

> rimraf dist && swc ./src -d dist


  × Expression expected
   ╭─[src/listeners/ready.ts:4:1]
 4 │
 5 │ const dev = process.env.NODE_ENV !== 'production';
 6 │
 7 │ @ApplyOptions<Listener.Options>({ once: true })
   · ─
 8 │ export class UserEvent extends Listener {
 9 │    private readonly style = dev ? yellow : blue;
   ╰────


Caused by:
    Syntax Error

  × Expression expected
   ╭─[src/commands/General/Ping.ts:2:1]
 2 │ import { isMessageInstance } from '@sapphire/discord.js-utilities';
 3 │ import { Command } from '@sapphire/framework';
 4 │
 5 │ @ApplyOptions<Command.Options>({
   · ─
 6 │    description: 'Returns the round trip and heartbeat'
 7 │ })
 8 │ export class UserCommand extends Command {
   ╰────


Caused by:
    Syntax Error
Successfully compiled: 11 files with swc (23.51ms)
Failed to compile 2 files with swc.
Error: Failed to compile:
src/listeners/ready.ts
src/commands/General/Ping.ts
    at initialCompilation (/home/demonicpagan/development/nodejs/discordBots/discord-trakt/node_modules/.pnpm/@swc+cli@0.1.62_@swc+core@1.3.95/node_modules/@swc/cli/lib/swc/dir.js:163:19)
    at async dir (/home/demonicpagan/development/nodejs/discordBots/discord-trakt/node_modules/.pnpm/@swc+cli@0.1.62_@swc+core@1.3.95/node_modules/@swc/cli/lib/swc/dir.js:228:5)
 ELIFECYCLE  Command failed with exit code 1.

This is my config for SWC, .swcrc

{
    "env": {
        "target": {
            "node": 20
        }
    },
    "jsc": {
        "parser": {
            "syntax": "typescript"
        }
    },
    "module": {
        "type": "commonjs"
    },
    "sourceMaps": "inline"
}

{
    "env": {
        "target": {
            "node": 20
        }
    },
    "jsc": {
        "parser": {
            "syntax": "typescript"
        }
    },
    "module": {
        "type": "commonjs"
    },
    "sourceMaps": "inline"
}

Solution:

https://swc.rs/docs/configuration/compilation#jsctransformdecoratormetadata

Compilation – SWC

SWC is an extensible Rust-based platform for the next generation of fast developer tools. It's used by tools like Next.js, Parcel, and Deno, as well as companies like Vercel, ByteDance, Tencent, Shopify, and more.

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1 Reply

Solution

Sawako•8mo ago

https://swc.rs/docs/configuration/compilation#jsctransformdecoratormetadata

Compilation – SWC

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Compiling with SWC