flatted

Index: package/esm.js
===================================================================
--- package/esm.js
+++ package/esm.js
@@ -1,2 +1,1 @@
-/*! (c) 2020 Andrea Giammarchi */
-const{parse:t,stringify:e}=JSON,{keys:n}=Object,o=String,c={},r=(t,e)=>e,s=t=>t instanceof o?o(t):t,l=(t,e)=>"string"==typeof e?new o(e):e,a=(t,e,r,s)=>{const l=[];for(let a=n(r),{length:f}=a,i=0;i<f;i++){const n=a[i],f=r[n];if(f instanceof o){const o=t[f];"object"!=typeof o||e.has(o)?r[n]=s.call(r,n,o):(e.add(o),r[n]=c,l.push({k:n,a:[t,e,o,s]}))}else r[n]!==c&&(r[n]=s.call(r,n,f))}for(let{length:t}=l,e=0;e<t;e++){const{k:t,a:n}=l[e];r[t]=s.call(r,t,a.apply(null,n))}return r},f=(t,e,n)=>{const c=o(e.push(n)-1);return t.set(n,c),c},i=(e,n)=>{const o=t(e,l).map(s),c=o[0],f=n||r,i="object"==typeof c&&c?a(o,new Set,c,f):c;return f.call({"":i},"",i)},p=(t,n,o)=>{const c=n&&"object"==typeof n?(t,e)=>""===t||-1<n.indexOf(t)?e:void 0:n||r,s=new Map,l=[],a=[];let i=+f(s,l,c.call({"":t},"",t)),p=!i;for(;i<l.length;)p=!0,a[i]=e(l[i++],u,o);return"["+a.join(",")+"]";function u(t,e){if(p)return p=!p,e;const n=c.call(this,t,e);switch(typeof n){case"object":if(null===n)return n;case"string":return s.get(n)||f(s,l,n)}return n}},u=e=>t(p(e)),g=t=>i(e(t));export{g as fromJSON,i as parse,p as stringify,u as toJSON};
+const{parse:t,stringify:e}=JSON,{keys:n}=Object,o=String,r="string",s={},c="object",l=(t,e)=>e,f=t=>t instanceof o?o(t):t,i=(t,e)=>typeof e===r?new o(e):e,a=(t,e,n)=>{const r=o(e.push(n)-1);return t.set(n,r),r},u=(e,r)=>{const a=t(e,i).map(f),u=r||l;let p=a[0];if(typeof p===c&&p){const t=[],e=((t,e,r,l)=>f=>{for(let i=n(f),{length:a}=i,u=0;u<a;u++){const n=i[u],a=f[n];if(a instanceof o){const o=t[+a];typeof o!==c||r.has(o)?f[n]=l.call(f,n,o):(r.add(o),f[n]=s,e.push({o:f,k:n,r:o}))}else f[n]!==s&&(f[n]=l.call(f,n,a))}return f})(a,t,new Set,u);p=e(p);let r=0;for(;r<t.length;){const{o:n,k:o,r:s}=t[r++];n[o]=u.call(n,o,e(s))}}return u.call({"":p},"",p)},p=(t,n,o)=>{const s=n&&typeof n===c?(t,e)=>""===t||-1<n.indexOf(t)?e:void 0:n||l,f=new Map,i=[],u=[];let p=+a(f,i,s.call({"":t},"",t)),h=!p;for(;p<i.length;)h=!0,u[p]=e(i[p++],g,o);return"["+u.join(",")+"]";function g(t,e){if(h)return h=!h,e;const n=s.call(this,t,e);switch(typeof n){case c:if(null===n)return n;case r:return f.get(n)||a(f,i,n)}return n}},h=e=>t(p(e)),g=t=>u(e(t));export{g as fromJSON,u as parse,p as stringify,h as toJSON};