/* @flow */
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import { warn } from './warn'
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import Regexp from 'path-to-regexp'
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// $flow-disable-line
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const regexpCompileCache: {
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[key: string]: Function
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} = Object.create(null)
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export function fillParams (
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path: string,
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params: ?Object,
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routeMsg: string
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): string {
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params = params || {}
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try {
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const filler =
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regexpCompileCache[path] ||
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(regexpCompileCache[path] = Regexp.compile(path))
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// Fix #2505 resolving asterisk routes { name: 'not-found', params: { pathMatch: '/not-found' }}
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// and fix #3106 so that you can work with location descriptor object having params.pathMatch equal to empty string
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if (typeof params.pathMatch === 'string') params[0] = params.pathMatch
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return filler(params, { pretty: true })
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} catch (e) {
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if (process.env.NODE_ENV !== 'production') {
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// Fix #3072 no warn if `pathMatch` is string
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warn(typeof params.pathMatch === 'string', `missing param for ${routeMsg}: ${e.message}`)
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}
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return ''
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} finally {
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// delete the 0 if it was added
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delete params[0]
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}
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}
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