import { i as a } from './init-77b53fdd.js';
class o extends Map {
	constructor(n, t = g) {
		if ((super(), Object.defineProperties(this, { _intern: { value: new Map() }, _key: { value: t } }), n != null))
			for (const [r, s] of n) this.set(r, s);
	}
	get(n) {
		return super.get(c(this, n));
	}
	has(n) {
		return super.has(c(this, n));
	}
	set(n, t) {
		return super.set(l(this, n), t);
	}
	delete(n) {
		return super.delete(p(this, n));
	}
}
function c({ _intern: e, _key: n }, t) {
	const r = n(t);
	return e.has(r) ? e.get(r) : t;
}
function l({ _intern: e, _key: n }, t) {
	const r = n(t);
	return e.has(r) ? e.get(r) : (e.set(r, t), t);
}
function p({ _intern: e, _key: n }, t) {
	const r = n(t);
	return e.has(r) && ((t = e.get(r)), e.delete(r)), t;
}
function g(e) {
	return e !== null && typeof e == 'object' ? e.valueOf() : e;
}
const f = Symbol('implicit');
function h() {
	var e = new o(),
		n = [],
		t = [],
		r = f;
	function s(u) {
		let i = e.get(u);
		if (i === void 0) {
			if (r !== f) return r;
			e.set(u, (i = n.push(u) - 1));
		}
		return t[i % t.length];
	}
	return (
		(s.domain = function (u) {
			if (!arguments.length) return n.slice();
			(n = []), (e = new o());
			for (const i of u) e.has(i) || e.set(i, n.push(i) - 1);
			return s;
		}),
		(s.range = function (u) {
			return arguments.length ? ((t = Array.from(u)), s) : t.slice();
		}),
		(s.unknown = function (u) {
			return arguments.length ? ((r = u), s) : r;
		}),
		(s.copy = function () {
			return h(n, t).unknown(r);
		}),
		a.apply(s, arguments),
		s
	);
}
export { h as o };