codesandbox / codesandbox/codesandbox-client
Invalid transformation of static fields
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- Dominant language
- JavaScript
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Description
🐛 bug report
Preflight Checklist
- I have read the Contributing Guidelines for this project.
- I agree to follow the Code of Conduct that this project
adheres to. - I have searched the issue tracker for an issue that matches the one I want
to file, without success.
Description of the problem
Codesandbox's bundler incorrectly transforms static fields.
How has this issue affected you? What are you trying to accomplish?
Non-working sandbox
To Reproduce
https://codesandbox.io/s/sad-scott-ylf7zo
class BarController extends DatasetController {
static id = 'bar'
static (0, $csb__segment_js.d) = { // <----- originally static defaults
datasetElementType: false,
dataElementType: 'bar',
categoryPercentage: 0.8,
barPercentage: 0.9,
grouped: true,
animations: {
numbers: {
type: 'number',
properties: ['x', 'y', 'base', 'width', 'height']
}
}
}
static (0, $csb__segment_js.a3) = { // <----- originally static overrides
scales: {
_index_: {
type: 'category',
offset: true,
grid: {
offset: true
}
},
_value_: {
type: 'linear',
beginAtZero: true
}
}
}
Originally it defaults and overrides fields. There are also exports with the same names.
Your Environment
| Software | Name/Version |
|---|---|
| Сodesandbox | current |
| Browser | every |
| Operating System | every |
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start with the linked CodeSandbox reproduction and compare the generated class fields with the original defaults and overrides fields shown in the report. Trace the Codesandbox bundler transformation that produces the (0, $csb__segment_js...) field names, including the same-named exports. Done means static fields and exports retain their intended names in the bundled output.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- javascript
- Domain
- build-system
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 35/100