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[Bug]: super keyword in chained assignment escapes out of class #6331

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p51lee opened this issue Nov 2, 2022 · 2 comments
Closed

[Bug]: super keyword in chained assignment escapes out of class #6331

p51lee opened this issue Nov 2, 2022 · 2 comments
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@p51lee
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p51lee commented Nov 2, 2022

Describe the bug

super keyword in the input code escapes out of class block when the code is transpiled, resulting in SyntaxError.

Input code

class C { f = super . x = super . y ; } ;

Config

No response

Playground link

https://play.swc.rs/?version=1.3.11&code=H4sIAAAAAAAAA0vOSSwuVnBWqFZIU7BVKC4tSC1S0FOoQGJXKlgr1CpYAwCR6lRlKQAAAA%3D%3D&config=H4sIAAAAAAAAA0WMTQrEIAxG75K1286id5hDBCctFv9IUhgR714tlu7C915ehUMsrBUyshCPS0pU%2FMMKZAOKZZcVTNf6tKEXagYUeScdiiyd%2BZSEJjUQXHRbGSWbQmYSeRHG3T9m66GQfucYKmjJdAc%2F0N7G%2FHPynaLySe0Cj9ke9LUAAAA%3D

Expected behavior

input.js terminates without error.

$ node input.js

Actual behavior

The output code throws SyntaxError by misplaced super keyword.

$ node output.js
output.js:73
    _defineProperty(this, "f", _set(_getPrototypeOf(C.prototype), "x", super.y, this, true));
                                                                       ^^^^^

SyntaxError: 'super' keyword unexpected here
    at Object.compileFunction (node:vm:360:18)
    at wrapSafe (node:internal/modules/cjs/loader:1088:15)
    at Module._compile (node:internal/modules/cjs/loader:1123:27)
    at Module._extensions..js (node:internal/modules/cjs/loader:1213:10)
    at Module.load (node:internal/modules/cjs/loader:1037:32)
    at Module._load (node:internal/modules/cjs/loader:878:12)
    at Function.executeUserEntryPoint [as runMain] (node:internal/modules/run_main:81:12)
    at node:internal/main/run_main_module:23:47

Node.js v18.11.0

Version

1.3.11 (default SWC playground)

Additional context

No response

@p51lee p51lee added the C-bug label Nov 2, 2022
@kdy1 kdy1 added this to the Planned milestone Nov 2, 2022
@Austaras
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Austaras commented Nov 9, 2022

Already fixed by #6319

@kdy1 kdy1 closed this as completed Nov 10, 2022
@kdy1 kdy1 modified the milestones: Planned, v1.3.15 Nov 12, 2022
@swc-bot
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swc-bot commented Dec 12, 2022

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.

@swc-project swc-project locked as resolved and limited conversation to collaborators Dec 12, 2022
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