Incorrect inlining results in invalid left hand assignment

[petyosi]

Describe the bug

The minification of the @lezer/markdown package results in an invalid left hand assignment code. I've stripped the code up to my best.

Input code

const scanLineResult = { text: "", end: 0 };
/// Block-level parsing functions get access to this context object.
export class BlockContext {
    /// @internal
    scanLine(start) {
        let r = scanLineResult;
        r.end = start;
        if (start >= this.to) {
            r.text = "";
        }
        else {
            
        }
        return r;
    }
    
}

Config

No response

Playground link

https://play.swc.rs/?version=1.3.66&code=H4sIAAAAAAAAA22QwW4CMQxE7%2FmKEScqtbucQVtV9NoTfxBSQ9NGCbK9CAntv%2BPsUmir%2BhSNZ55HcaFkUUjw%2BS1m2pD0SdHhDKWTLjGbPYLy%2BxILDCvXti3WqYSvp0RHSjh4lpj32PU5aDQS9qTwIZAItEA%2FosAuVBbK9pOCNo5Oh8KKkLyZRtrr1XF2sKlHXqIpnH0ale92c1HP%2BnD11Ul2jq3u7%2F6r254bK1%2F3NXiX4w4TC8%2FdWLLR8hM7RcdOnX3BPTjcXpSE%2FiT%2BcTFpzxk8ESbdDe4CfUM7BnYBAAA%3D&config=H4sIAAAAAAAAA32UyY7bMAxA7%2FMVgYHeBkVRYC499NjfEBSJcjSVREOkMjEG%2BffSS5NgQvtm83ER18%2BXw6F7J9f9OnzKp%2FwMthLU279IaCxsLyLpwGVLrsaBuxleXxcbtrUHnjXorVuFOZYYxkdHDvNQgehBJlKxbRkKT%2BJgE8HrI6v4MQGu7VF%2BRExgyw4xlkwsDD1UzbHDlOxAYM62Kl6ml9oaCbUQE2wM3gwVB5UXHzlikZjP1IP1xqEHBcUKjuMZNDOJJWaFJD0lnxl7OLa%2Bn5v3xRrONjXLSky4zC2R1ypeTxiJTWhFK%2BECN2qwwLW4Xy1jMBW41fJs946xbPTkL4BUIFmiYjNofmeNIPO0ZR12LWMJMrI8KjyhmmWBXopqYgxKZafKQOWodbOCbw6myjrtOSveKB9FDwZCkFlRXNNHZHfSgvI4AAYFSH9t0KZqAea2hRt8Wogd%2FEeyZH3AVo1s%2BbRNacxHTDsBMvAJ%2FY6CtIJxG1e5Epdhm7fiQUYDvKrSaAbPR0AWgNGk%2BTA%2BzYash3g0fcLj%2FUysCtf%2Fml22pb%2Fv%2B3JzX1aFDsr5fraXEzw56n4ffnz%2F%2BfatuyneLvHi5foPejTc0PUFAAA%3D

Expected behavior

A valid code should be generated.

Actual behavior

swc generates this:

                return 0 = start, // ... 

Version

1.3.66

Additional context

No response

[DIYgod]

I am using @codemirror/lang-markdown, and I am encountering the same problem.

[Austaras]

Already fixed by #7534

[swc-bot]

This closed issue has been automatically locked because it had no new activity for a month. If you are running into a similar issue, please create a new issue with the steps to reproduce. Thank you.