react-understate/dist/react-understate.signals.cjs.js

A lightweight, reactive signals library for React 18+ with automatic dependency tracking and optimized performance

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State names must be unique.`);e.states[f]={value:"effect",dispose:()=>{v=1,w&&(w(),w=void 0)}}}return()=>{v=1,w&&(w(),w=void 0)}},exports.state=function(r,i){const u=i?t(i):void 0;let c=r;const a=new Set,l=new Set,d=()=>{a.forEach(e=>{e!==f&&e()}),l.forEach(e=>{if(0!=$?.preventLoops&&function(e){return y.has(e)}(S)&&(e===f||e===p))return;const t=(n=e,m.get(n));var n;0!=t?.preventLoops&&function(e,t){const n=h.get(e);return!!n&&n.has(t)}(e,S)||e()})},b=async t=>{try{let i;const s=n();if("function"==typeof t){const n=t(c);if(n instanceof Promise)try{i=await n,u&&e(`state: '${u}' async resolved: ${JSON.stringify(i,null,2)}`,s)}catch(r){throw u&&e(`state: '${u}' async rejected: ${r}`,s),r}else i=n}else i=t;Object.is(c,i)||(u&&e(`state: '${u}' ${JSON.stringify(i,null,2)}`,s),c=i,function(e){if(!p)return;let t=h.get(p);t||(t=new Set,h.set(p,t)),t.add(e)}(S),v.add(d),w||o())}catch{}},S={get rawValue(){return c},update:async t=>{try{const r=t(c);if(r instanceof Promise)try{const t=await r;if(u){const o=n();e(`state: '${u}' update async resolved: ${JSON.stringify(t,null,2)}`,o)}b(t)}catch(o){if(u){const t=n();e(`state: '${u}' update async rejected: ${o}`,t)}throw o}else b(r)}catch{}},subscribe:e=>(a.add(e),()=>a.delete(e)),get value(){return f&&(s(S),l.add(f)),c},set value(e){if("function"==typeof e){const t=e(c);if(t instanceof Promise)return void t.then(e=>b(e));b(t)}else b(e)},get requiredValue(){if(f&&(s(S),l.add(f)),null==c)throw Error(`Required value${u?` '${u}'`:""} is ${null===c?"null":"undefined"}. 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