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next.js/server/build/loaders/hot-self-accept-loader.js

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import { resolve, relative } from 'path'
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module.exports = function (content, sourceMap) {
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this.cacheable()
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const route = getRoute(this)
this.callback(null, `${content}
(function (Component, route) {
if (!module.hot) return
if (!__resourceQuery) return
var qs = require('querystring')
var params = qs.parse(__resourceQuery.slice(1))
if (params.entry == null) return
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module.hot.accept()
Component.__route = route
if (module.hot.status() === 'idle') return
var components = next.router.components
for (var r in components) {
if (!components.hasOwnProperty(r)) continue
if (components[r].Component.__route === route) {
next.router.update(r, Component)
}
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}
})(typeof __webpack_exports__ !== 'undefined' ? __webpack_exports__.default : (module.exports.default || module.exports), ${JSON.stringify(route)})
`, sourceMap)
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}
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const nextPagesDir = resolve(__dirname, '..', '..', '..', 'pages')
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function getRoute (loaderContext) {
const pagesDir = resolve(loaderContext.options.context, 'pages')
const { resourcePath } = loaderContext
const dir = [pagesDir, nextPagesDir]
.find((d) => resourcePath.indexOf(d) === 0)
const path = relative(dir, resourcePath)
return '/' + path.replace(/((^|\/)index)?\.js$/, '')
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}