bun build with puppeteer dependency fails

[EmielM]

What version of Bun is running?

1.0.3+25e69c71e70ac8a0a88f9cf15b4057bd7b2a633a

What platform is your computer?

Linux 5.4.0-113-generic x86_64 x86_64

What steps can reproduce the bug?

Trying to bun build --target bun a simple script that uses puppeteer 21.3.6 and then build run fails with TypeError: The superclass is not a constructor..

Directly running bun run index.js works as expected. Repro case: https://github.com/EmielM/bun-build-repro

This is probably some issue with puppeteer: if you look at node_modules/puppeteer-core/lib/esm/puppeteer/api/JSHandle.js, you see it's pretty convoluted/generated javascript.

But flagging here as

• I think puppeteer is not some marginal library :), so will probably impact others
• shouldn't bun build --target bun --outfile out.js index.js && bun run out.js always be behaviourally identical to bun run index.js in all cases?

What is the expected behavior?

A successful run (generated chrome.png)

What do you see instead?

52593 |   init_Serializer();
52594 | });
52595 | 
52596 | // node_modules/puppeteer-core/lib/esm/puppeteer/bidi/JSHandle.js
52597 | 
52598 | class BidiJSHandle extends JSHandle {
   ^
TypeError: The superclass is not a constructor.
      at /home/emiel/bun-repro/out.js:52598:0

Additional information

No response

[LiangNiang]

same problem here

[CelyQ]

same

[mattay]

I'm encountering this error message as well. For build target node and bun

[mibcadet]

exactly same problem here..

[devtorello]

Same issue here. Do we have an update on this?

[EmielM]

Here's an isolated repro: for this code bun build emits code of the form:

class MyComponent extends React.Component {
  // ...
}
var React, MyComponent_default;
var init_MyComponent = __esm(() => {
  React = __toESM(require_react(), 1);
  MyComponent_default = MyComponent;
});

• init_MyComponent that initializes React and thus React.Component, is called is called after the class definition.
• So runtimes crashes after encountering the class ... extends definition, eg in chrome: Uncaught TypeError: Cannot read properties of undefined (reading 'Component')

[ecosse3]

Same issue here on bun 1.0.18. Any updates on this? Because of that I cannot dockerize bun. Same with tsx files using puppeteer.

[laurensV]

Same problem here with bun 1.0.26

[ChARCOOL]

same with latest version of bun :/

[laurensV]

Seems to happen with multiple packages, like @solana/web3,js (https://github.com/oven-sh/bun/issues/8925) AWS CDK (https://github.com/oven-sh/bun/issues/3088) and probably more

[Makaran21]

same here

[EmielM]

Update: this still happens on the latest bun, basically making it unusable as bundler for web for most react applications, at least where a few old-style components (extends React.Component) are used.

[Geczy]

same, no solution? with supabase auth

[hhimanshu]

Still happening

113044 |   await client.send("Runtime.releaseObject", { objectId: remoteObject.objectId }).catch((error2) => {
113045 |     debugError(error2);
113046 |   });
113047 | }
113048 | 
113049 | class CdpJSHandle extends JSHandle {
                                   ^
TypeError: The superclass is not a constructor.

for

bun --version
1.1.20