it-handshake/dist/index.min.js

Create handshakes for binary protocols with iterable streams

(function (root, factory) {(typeof module === 'object' && module.exports) ? module.exports = factory() : root.ItHandshake = factory()}(typeof self !== 'undefined' ? self : this, function () {
"use strict";var ItHandshake=(()=>{var A=Object.defineProperty;var P=Object.getOwnPropertyDescriptor;var T=Object.getOwnPropertyNames;var j=Object.prototype.hasOwnProperty;var I=(s,t)=>{for(var e in t)A(s,e,{get:t[e],enumerable:!0})},R=(s,t,e,n)=>{if(t&&typeof t=="object"||typeof t=="function")for(let r of T(t))!j.call(s,r)&&r!==e&&A(s,r,{get:()=>t[r],enumerable:!(n=P(t,r))||n.enumerable});return s};var _=s=>R(A({},"__esModule",{value:!0}),s);var q={};I(q,{handshake:()=>M});function p(s){return globalThis.Buffer!=null?new Uint8Array(s.buffer,s.byteOffset,s.byteLength):s}function c(s=0){return globalThis.Buffer?.alloc!=null?p(globalThis.Buffer.alloc(s)):new Uint8Array(s)}function m(s=0){return globalThis.Buffer?.allocUnsafe!=null?p(globalThis.Buffer.allocUnsafe(s)):new Uint8Array(s)}function x(s,t){t==null&&(t=s.reduce((r,i)=>r+i.length,0));let e=m(t),n=0;for(let r of s)e.set(r,n),n+=r.length;return p(e)}function V(s,t){if(s===t)return!0;if(s.byteLength!==t.byteLength)return!1;for(let e=0;e<s.byteLength;e++)if(s[e]!==t[e])return!1;return!0}var B=Symbol.for("@achingbrain/uint8arraylist");function k(s,t){if(t==null||t<0)throw new RangeError("index is out of bounds");let e=0;for(let n of s){let r=e+n.byteLength;if(t<r)return{buf:n,index:t-e};e=r}throw new RangeError("index is out of bounds")}function U(s){return!!s?.[B]}var b=class{constructor(...t){Object.defineProperty(this,B,{value:!0}),this.bufs=[],this.length=0,t.length>0&&this.appendAll(t)}*[Symbol.iterator](){yield*this.bufs}get byteLength(){return this.length}append(...t){this.appendAll(t)}appendAll(t){let e=0;for(let n of t)if(n instanceof Uint8Array)e+=n.byteLength,this.bufs.push(n);else if(U(n))e+=n.byteLength,this.bufs.push(...n.bufs);else throw new Error("Could not append value, must be an Uint8Array or a Uint8ArrayList");this.length+=e}prepend(...t){this.prependAll(t)}prependAll(t){let e=0;for(let n of t.reverse())if(n instanceof Uint8Array)e+=n.byteLength,this.bufs.unshift(n);else 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DataView(n.buffer,n.byteOffset,n.byteLength).getInt32(0,e)}setInt32(t,e,n){let r=c(4);new DataView(r.buffer,r.byteOffset,r.byteLength).setInt32(0,e,n),this.write(r,t)}getBigInt64(t,e){let n=this.subarray(t,t+8);return new DataView(n.buffer,n.byteOffset,n.byteLength).getBigInt64(0,e)}setBigInt64(t,e,n){let r=c(8);new DataView(r.buffer,r.byteOffset,r.byteLength).setBigInt64(0,e,n),this.write(r,t)}getUint8(t){let e=this.subarray(t,t+1);return new DataView(e.buffer,e.byteOffset,e.byteLength).getUint8(0)}setUint8(t,e){let n=m(1);new DataView(n.buffer,n.byteOffset,n.byteLength).setUint8(0,e),this.write(n,t)}getUint16(t,e){let n=this.subarray(t,t+2);return new DataView(n.buffer,n.byteOffset,n.byteLength).getUint16(0,e)}setUint16(t,e,n){let r=c(2);new DataView(r.buffer,r.byteOffset,r.byteLength).setUint16(0,e,n),this.write(r,t)}getUint32(t,e){let n=this.subarray(t,t+4);return new DataView(n.buffer,n.byteOffset,n.byteLength).getUint32(0,e)}setUint32(t,e,n){let r=c(4);new 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n.bufs=t,e==null&&(e=t.reduce((r,i)=>r+i.byteLength,0)),n.length=e,n}};function O(s){let t=async function*(){let e=yield,n=new b;for await(let r of s){if(e==null){n.append(r),e=yield n,n=new b;continue}for(n.append(r);n.length>=e;){let i=n.sublist(0,e);if(n.consume(e),e=yield i,e==null){n.length>0&&(e=yield n,n=new b);break}}}if(e!=null)throw Object.assign(new Error(`stream ended before ${e} bytes became available`),{code:"ERR_UNDER_READ",buffer:n})}();return t.next(),t}var v=class{constructor(t){if(!(t>0)||t-1&t)throw new Error("Max size for a FixedFIFO should be a power of two");this.buffer=new Array(t),this.mask=t-1,this.top=0,this.btm=0,this.next=null}push(t){return this.buffer[this.top]!==void 0?!1:(this.buffer[this.top]=t,this.top=this.top+1&this.mask,!0)}shift(){let t=this.buffer[this.btm];if(t!==void 0)return this.buffer[this.btm]=void 0,this.btm=this.btm+1&this.mask,t}isEmpty(){return this.buffer[this.btm]===void 0}},y=class{constructor(t={}){this.hwm=t.splitLimit??16,this.head=new v(this.hwm),this.tail=this.head,this.size=0}calculateSize(t){return t?.byteLength!=null?t.byteLength:1}push(t){if(t?.value!=null&&(this.size+=this.calculateSize(t.value)),!this.head.push(t)){let e=this.head;this.head=e.next=new v(2*this.head.buffer.length),this.head.push(t)}}shift(){let t=this.tail.shift();if(t===void 0&&this.tail.next!=null){let e=this.tail.next;this.tail.next=null,this.tail=e,t=this.tail.shift()}return t?.value!=null&&(this.size-=this.calculateSize(t.value)),t}isEmpty(){return this.head.isEmpty()}};function N(s={}){return z(e=>{let n=e.shift();if(n==null)return{done:!0};if(n.error!=null)throw n.error;return{done:n.done===!0,value:n.value}},s)}function z(s,t){t=t??{};let e=t.onEnd,n=new y,r,i,a,f=async()=>n.isEmpty()?a?{done:!0}:await new Promise((u,E)=>{i=S=>{i=null,n.push(S);try{u(s(n))}catch(F){E(F)}return r}}):s(n),h=u=>i!=null?i(u):(n.push(u),r),g=u=>(n=new 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i.catch(f=>{r=f}),{reader:e,writer:t,stream:{sink:async f=>{if(r!=null){await Promise.reject(r);return}n.resolve(f),await i},source:e},rest:()=>t.end(),write:t.push,read:async()=>{let f=await e.next();if(f.value!=null)return f.value}}}return _(q);})();
return ItHandshake}));