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fix: generateCodeFrame infinite loop#15093

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patak-cat merged 2 commits intovitejs:mainfrom
sapphi-red:fix/generate-code-frame-infinite-loop
Nov 22, 2023
Merged

fix: generateCodeFrame infinite loop#15093
patak-cat merged 2 commits intovitejs:mainfrom
sapphi-red:fix/generate-code-frame-infinite-loop

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@sapphi-red sapphi-red commented Nov 22, 2023

Description

fixes #15076
refs #14984

Additional context


What is the purpose of this pull request?

  • Bug fix
  • New Feature
  • Documentation update
  • Other

Before submitting the PR, please make sure you do the following

  • Read the Contributing Guidelines, especially the Pull Request Guidelines.
  • Check that there isn't already a PR that solves the problem the same way to avoid creating a duplicate.
  • Provide a description in this PR that addresses what the PR is solving, or reference the issue that it solves (e.g. fixes #123).
  • Update the corresponding documentation if needed.
  • Ideally, include relevant tests that fail without this PR but pass with it.

@sapphi-red sapphi-red added the p4-important Violate documented behavior or significantly improves performance (priority) label Nov 22, 2023
Comment on lines +509 to +512
end = Math.min(
end !== undefined ? posToNumber(source, end) : start,
source.length,
)
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? {
line: warning.endLine,
column: warning.endColumn - 1, // 1-based
}

{ endLine: 107, endColumn: 2 } was passed here. So posToNumber(source, { line: 107, column: 1 }) was called.
But the source only has 107 lines. So posToNumber returned a number greater than source.length.

@patak-cat patak-cat merged commit 6619de7 into vitejs:main Nov 22, 2023
@sapphi-red sapphi-red deleted the fix/generate-code-frame-infinite-loop branch November 22, 2023 11:19
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Generated CSS that creates warnings can cause infinite loops in generateCodeFrame

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