wrapRegExp.js
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import _typeof from "./typeof.js";
import setPrototypeOf from "./setPrototypeOf.js";
import inherits from "./inherits.js";
export default function _wrapRegExp() {
_wrapRegExp = function _wrapRegExp(re, groups) {
return new BabelRegExp(re, void 0, groups);
};
var _super = RegExp.prototype,
_groups = new WeakMap();
function BabelRegExp(re, flags, groups) {
var _this = new RegExp(re, flags);
return _groups.set(_this, groups || _groups.get(re)), setPrototypeOf(_this, BabelRegExp.prototype);
}
function buildGroups(result, re) {
var g = _groups.get(re);
return Object.keys(g).reduce(function (groups, name) {
var i = g[name];
if ("number" == typeof i) groups[name] = result[i];else {
for (var k = 0; void 0 === result[i[k]] && k + 1 < i.length;) {
k++;
}
groups[name] = result[i[k]];
}
return groups;
}, Object.create(null));
}
return inherits(BabelRegExp, RegExp), BabelRegExp.prototype.exec = function (str) {
var result = _super.exec.call(this, str);
if (result) {
result.groups = buildGroups(result, this);
var indices = result.indices;
indices && (indices.groups = buildGroups(indices, this));
}
return result;
}, BabelRegExp.prototype[Symbol.replace] = function (str, substitution) {
if ("string" == typeof substitution) {
var groups = _groups.get(this);
return _super[Symbol.replace].call(this, str, substitution.replace(/\$<([^>]+)>/g, function (_, name) {
var group = groups[name];
return "$" + (Array.isArray(group) ? group.join("$") : group);
}));
}
if ("function" == typeof substitution) {
var _this = this;
return _super[Symbol.replace].call(this, str, function () {
var args = arguments;
return "object" != _typeof(args[args.length - 1]) && (args = [].slice.call(args)).push(buildGroups(args, _this)), substitution.apply(this, args);
});
}
return _super[Symbol.replace].call(this, str, substitution);
}, _wrapRegExp.apply(this, arguments);
}