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const { Record, Map } = require('immutable');
const querystring = require('querystring');
const DEFAULTS = {
pathname: String(''),
// Hash without the #
hash: String(''),
// If query is a non empty map
query: Map()
};
class Location extends Record(DEFAULTS) {
/**
* Return search query as a string
* @return {String}
*/
get search() {
const { query } = this;
return query.size === 0 ?
'' :
'?' + querystring.stringify(query.toJS());
}
/**
* Convert this location to a string.
* @return {String}
*/
toString() {
}
/**
* Convert this immutable instance to an object
* for "history".
* @return {Object}
*/
toNative() {
return {
pathname: this.pathname,
hash: this.hash ? `#${this.hash}` : '',
search: this.search
};
}
/**
* Convert an instance from "history" to Location.
* @param {Object|String} location
* @return {Location}
*/
static fromNative(location) {
if (typeof location === 'string') {
location = { pathname: location };
}
const pathname = location.pathname;
let hash = location.hash || '';
let search = location.search || '';
let query = location.query;
hash = hash[0] === '#' ? hash.slice(1) : hash;
search = search[0] === '?' ? search.slice(1) : search;
if (query) {
query = Map(query);
} else {
query = Map(querystring.parse(search));
}
return new Location({
pathname,
hash,
query
});
}
}
module.exports = Location;
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