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no-exports-from-components.ts
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/
no-exports-from-components.ts
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import type { TSESTree } from "@typescript-eslint/types"
import { createRule } from "../utils"
import { getSourceCode } from "../utils/compat"
export default createRule("no-exports-from-components", {
meta: {
docs: {
description: "disallow value export",
category: "Possible Errors",
// TODO: Switch to recommended: true, in next major version
recommended: false,
},
schema: [],
messages: {
disallowExport: "Exporting values from components is not allowed.",
},
type: "problem",
},
create(context) {
const sourceCode = getSourceCode(context)
if (!sourceCode.parserServices.isAstro) {
return {}
}
/**
* Verify for export declarations
*/
function verifyDeclaration(
node:
| TSESTree.ExportDefaultDeclaration["declaration"]
| TSESTree.ExportNamedDeclaration["declaration"],
) {
if (!node) return
if (node.type.startsWith("TS") && !node.type.endsWith("Expression")) {
return
}
context.report({
node,
messageId: "disallowExport",
})
}
return {
ExportAllDeclaration(node) {
if (node.exportKind === "type") return
context.report({
node,
messageId: "disallowExport",
})
},
ExportDefaultDeclaration(node) {
if (node.exportKind === "type") return
verifyDeclaration(node.declaration)
},
ExportNamedDeclaration(node) {
if (node.exportKind === "type") return
verifyDeclaration(node.declaration)
for (const spec of node.specifiers) {
if (spec.exportKind === "type") return
context.report({
node: spec,
messageId: "disallowExport",
})
}
},
}
},
})