feat(eslint): add support for flat configs #1898
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ESLint v8.57 has added a new loadESLint() function to load the correct ESLint class (either one reading legacy configs, either one reading flat configs). See: - https://eslint.org/docs/v8.x/integrate/nodejs-api#loadeslint - eslint/eslint@1120b9b Unfortunately @types/eslint is missing v8.57 and has been removed entirely from the DefinitelyType repository (since upstream now ships type definitions). As a result we need to manually declare the type of the loadESLint() function. Additionally, loadESLint() is async, so we can't call it at plugin initialization time. Instead, we call it the first time we need it.
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This was referenced Sep 22, 2025
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Description
ESLint v8.57 has added a new loadESLint() function to load the correct ESLint class (either one reading legacy configs, either one reading flat configs).
See:
Unfortunately @types/eslint is missing v8.57 and has been removed entirely from the DefinitelyType repository (since upstream now ships type definitions). As a result we need to manually declare the type of the loadESLint() function.
Additionally, loadESLint() is async, so we can't call it at plugin initialization time. Instead, we call it the first time we need it.
See also these issues:
eslint.config.jsis not recognized #1708