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import { defineRule } from '../utils/define-rule'
const url = 'https://nextjs.org/docs/messages/inline-script-id'
export = defineRule({
meta: {
docs: {
description:
'Enforce `id` attribute on `next/script` components with inline content.',
recommended: true,
url,
},
type: 'problem',
schema: [],
},
create(context) {
let nextScriptImportName = null
return {
ImportDeclaration(node) {
if (node.source.value === 'next/script') {
nextScriptImportName = node.specifiers[0].local.name
}
},
JSXElement(node) {
if (nextScriptImportName == null) return
if (
node.openingElement &&
node.openingElement.name &&
node.openingElement.name.name !== nextScriptImportName
) {
return
}
const attributeNames = new Set()
let hasNonCheckableSpreadAttribute = false
node.openingElement.attributes.forEach((attribute) => {
// Early return if we already have a non-checkable spread attribute, for better performance
if (hasNonCheckableSpreadAttribute) return
if (attribute.type === 'JSXAttribute') {
attributeNames.add(attribute.name.name)
} else if (attribute.type === 'JSXSpreadAttribute') {
if (attribute.argument && attribute.argument.properties) {
attribute.argument.properties.forEach((property) => {
attributeNames.add(property.key.name)
})
} else {
// JSXSpreadAttribute without properties is not checkable
hasNonCheckableSpreadAttribute = true
}
}
})
// https://github.com/vercel/next.js/issues/34030
// If there is a non-checkable spread attribute, we simply ignore them
if (hasNonCheckableSpreadAttribute) return
if (
node.children.length > 0 ||
attributeNames.has('dangerouslySetInnerHTML')
) {
if (!attributeNames.has('id')) {
context.report({
node,
message: `\`next/script\` components with inline content must specify an \`id\` attribute. See: ${url}`,
})
}
}
},
}
},
})
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