function o(){}function r(n){return n()}function f(){return Object.create(null)}function s(n){n.forEach(r);}function i(n){return typeof n=="function"}function l(n,u){return n!=n?u==u:n!==u||n&&typeof n=="object"||typeof n=="function"}function c(n,...u){if(n==null){for(const e of u)e(void 0);return o}const t=n.subscribe(...u);return t.unsubscribe?()=>t.unsubscribe():t}function b(n){let u;return c(n,t=>u=t)(),u}function a$1(n){return n??""}

const a=[];function z(e,o){return {subscribe:A(e,o).subscribe}}function A(e,o$1=o){let n;const r=new Set;function u(t){if(l(e,t)&&(e=t,n)){const i=!a.length;for(const s of r)s[1](),a.push(s,e);if(i){for(let s=0;s<a.length;s+=2)a[s][0](a[s+1]);a.length=0;}}}function l$1(t){u(t(e));}function b(t,i=o){const s=[t,i];return r.add(s),r.size===1&&(n=o$1(u,l$1)||o),t(e),()=>{r.delete(s),r.size===0&&n&&(n(),n=null);}}return {set:u,update:l$1,subscribe:b}}function E(e,o$1,n){const r=!Array.isArray(e),u=r?[e]:e;if(!u.every(Boolean))throw new Error("derived() expects stores as input, got a falsy value");const l=o$1.length<2;return z(n,(b,t)=>{let i$1=!1;const s$1=[];let d=0,p=o;const h=()=>{if(d)return;p();const c=o$1(r?s$1[0]:s$1,b,t);l?b(c):p=i(c)?c:o;},y=u.map((c$1,g)=>c(c$1,_=>{s$1[g]=_,d&=~(1<<g),i$1&&h();},()=>{d|=1<<g;}));return i$1=!0,h(),function(){s(y),p(),i$1=!1;}})}

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