it-length-prefixed-stream - npm Package Compare versions

Comparing version 1.1.8 to 1.2.0

dist/index.min.js

 (function (root, factory) {(typeof module === 'object' && module.exports) ? module.exports = factory() : root.ItLengthPrefixedStream = factory()}(typeof self !== 'undefined' ? self : this, function () {
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r=0;r<t.length;r++)this.set(e+r,t.get(r));else throw new Error("Could not write value, must be an Uint8Array or a Uint8ArrayList")}consume(t){if(t=Math.trunc(t),!(Number.isNaN(t)||t<=0)){if(t===this.byteLength){this.bufs=[],this.length=0;return}for(;this.bufs.length>0;)if(t>=this.bufs[0].byteLength)t-=this.bufs[0].byteLength,this.length-=this.bufs[0].byteLength,this.bufs.shift();else{this.bufs[0]=this.bufs[0].subarray(t),this.length-=t;break}}}slice(t,e){let{bufs:r,length:i}=this._subList(t,e);return D(r,i)}subarray(t,e){let{bufs:r,length:i}=this._subList(t,e);return r.length===1?r[0]:D(r,i)}sublist(t,e){let{bufs:r,length:i}=this._subList(t,e),h=new n;return h.length=i,h.bufs=[...r],h}_subList(t,e){if(t=t??0,e=e??this.length,t<0&&(t=this.length+t),e<0&&(e=this.length+e),t<0||e>this.length)throw new RangeError("index is out of bounds");if(t===e)return{bufs:[],length:0};if(t===0&&e===this.length)return{bufs:this.bufs,length:this.length};let r=[],i=0;for(let h=0;h<this.bufs.length;h++){let s=this.bufs[h],a=i,c=a+s.byteLength;if(i=c,t>=c)continue;let w=t>=a&&t<c,l=e>a&&e<=c;if(w&&l){if(t===a&&e===c){r.push(s);break}let u=t-a;r.push(s.subarray(u,u+(e-t)));break}if(w){if(t===0){r.push(s);continue}r.push(s.subarray(t-a));continue}if(l){if(e===c){r.push(s);break}r.push(s.subarray(0,e-a));break}r.push(s)}return{bufs:r,length:e-t}}indexOf(t,e=0){if(!x(t)&&!(t instanceof Uint8Array))throw new TypeError('The "value" argument must be a Uint8ArrayList or Uint8Array');let r=t instanceof Uint8Array?t:t.subarray();if(e=Number(e??0),isNaN(e)&&(e=0),e<0&&(e=this.length+e),e<0&&(e=0),t.length===0)return e>this.length?this.length:e;let i=r.byteLength;if(i===0)throw new TypeError("search must be at least 1 byte long");let h=256,s=new Int32Array(h);for(let u=0;u<h;u++)s[u]=-1;for(let u=0;u<i;u++)s[r[u]]=u;let a=s,c=this.byteLength-r.byteLength,w=r.byteLength-1,l;for(let u=e;u<=c;u+=l){l=0;for(let g=w;g>=0;g--){let I=this.get(u+g);if(r[g]!==I){l=Math.max(1,g-a[I]);break}}if(l===0)return u}return-1}getInt8(t){let e=this.subarray(t,t+1);return new DataView(e.buffer,e.byteOffset,e.byteLength).getInt8(0)}setInt8(t,e){let r=d(1);new DataView(r.buffer,r.byteOffset,r.byteLength).setInt8(0,e),this.write(r,t)}getInt16(t,e){let r=this.subarray(t,t+2);return new DataView(r.buffer,r.byteOffset,r.byteLength).getInt16(0,e)}setInt16(t,e,r){let i=b(2);new DataView(i.buffer,i.byteOffset,i.byteLength).setInt16(0,e,r),this.write(i,t)}getInt32(t,e){let r=this.subarray(t,t+4);return new DataView(r.buffer,r.byteOffset,r.byteLength).getInt32(0,e)}setInt32(t,e,r){let i=b(4);new DataView(i.buffer,i.byteOffset,i.byteLength).setInt32(0,e,r),this.write(i,t)}getBigInt64(t,e){let r=this.subarray(t,t+8);return new DataView(r.buffer,r.byteOffset,r.byteLength).getBigInt64(0,e)}setBigInt64(t,e,r){let i=b(8);new DataView(i.buffer,i.byteOffset,i.byteLength).setBigInt64(0,e,r),this.write(i,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 r=d(1);new DataView(r.buffer,r.byteOffset,r.byteLength).setUint8(0,e),this.write(r,t)}getUint16(t,e){let r=this.subarray(t,t+2);return new DataView(r.buffer,r.byteOffset,r.byteLength).getUint16(0,e)}setUint16(t,e,r){let i=b(2);new DataView(i.buffer,i.byteOffset,i.byteLength).setUint16(0,e,r),this.write(i,t)}getUint32(t,e){let r=this.subarray(t,t+4);return new DataView(r.buffer,r.byteOffset,r.byteLength).getUint32(0,e)}setUint32(t,e,r){let i=b(4);new DataView(i.buffer,i.byteOffset,i.byteLength).setUint32(0,e,r),this.write(i,t)}getBigUint64(t,e){let r=this.subarray(t,t+8);return new DataView(r.buffer,r.byteOffset,r.byteLength).getBigUint64(0,e)}setBigUint64(t,e,r){let i=b(8);new DataView(i.buffer,i.byteOffset,i.byteLength).setBigUint64(0,e,r),this.write(i,t)}getFloat32(t,e){let r=this.subarray(t,t+4);return new DataView(r.buffer,r.byteOffset,r.byteLength).getFloat32(0,e)}setFloat32(t,e,r){let i=b(4);new DataView(i.buffer,i.byteOffset,i.byteLength).setFloat32(0,e,r),this.write(i,t)}getFloat64(t,e){let r=this.subarray(t,t+8);return new DataView(r.buffer,r.byteOffset,r.byteLength).getFloat64(0,e)}setFloat64(t,e,r){let i=b(8);new DataView(i.buffer,i.byteOffset,i.byteLength).setFloat64(0,e,r),this.write(i,t)}equals(t){if(t==null||!(t instanceof n)||t.bufs.length!==this.bufs.length)return!1;for(let e=0;e<this.bufs.length;e++)if(!P(this.bufs[e],t.bufs[e]))return!1;return!0}static fromUint8Arrays(t,e){let r=new n;return r.bufs=t,e==null&&(e=t.reduce((i,h)=>i+h.byteLength,0)),r.length=e,r}};var U=class extends Error{name="UnexpectedEOFError";code="ERR_UNEXPECTED_EOF"};var _=class extends Error{code;constructor(t,e){super(t),this.code=e}},O=class extends _{type;constructor(t){super(t,"ABORT_ERR"),this.type="aborted",this.name="AbortError"}};function G(n,t){let e=k();n.sink(e).catch(async s=>{await e.end(s)}),n.sink=async s=>{for await(let a of s)await e.push(a);await e.end()};let r=n.source;n.source[Symbol.iterator]!=null?r=n.source[Symbol.iterator]():n.source[Symbol.asyncIterator]!=null&&(r=n.source[Symbol.asyncIterator]());let i=new y;return{read:async(s,a)=>{a?.signal?.throwIfAborted();let c,w=new Promise((l,u)=>{c=()=>{u(new O("Read aborted"))},a?.signal?.addEventListener("abort",c)});try{if(s==null){let{done:u,value:g}=await Promise.race([r.next(),w]);return u===!0?new y:g}for(;i.byteLength<s;){let{value:u,done:g}=await Promise.race([r.next(),w]);if(g===!0)throw new U("unexpected end of input");i.append(u)}let l=i.sublist(0,s);return i.consume(s),l}finally{c!=null&&a?.signal?.removeEventListener("abort",c)}},write:async(s,a)=>{a?.signal?.throwIfAborted(),s instanceof Uint8Array?await e.push(s,a):await e.push(s.subarray(),a)},unwrap:()=>{if(i.byteLength>0){let s=n.source;n.source=async function*(){t?.yieldBytes===!1?yield i:yield*i,yield*s}()}return n}}}var Y=Math.pow(2,7),Z=Math.pow(2,14),$=Math.pow(2,21),S=Math.pow(2,28),V=Math.pow(2,35),M=Math.pow(2,42),B=Math.pow(2,49),o=128,f=127;function L(n){if(n<Y)return 1;if(n<Z)return 2;if(n<$)return 3;if(n<S)return 4;if(n<V)return 5;if(n<M)return 6;if(n<B)return 7;if(Number.MAX_SAFE_INTEGER!=null&&n>Number.MAX_SAFE_INTEGER)throw new RangeError("Could not encode varint");return 8}function Q(n,t,e=0){switch(L(n)){case 8:t[e++]=n&255|o,n/=128;case 7:t[e++]=n&255|o,n/=128;case 6:t[e++]=n&255|o,n/=128;case 5:t[e++]=n&255|o,n/=128;case 4:t[e++]=n&255|o,n>>>=7;case 3:t[e++]=n&255|o,n>>>=7;case 2:t[e++]=n&255|o,n>>>=7;case 1:{t[e++]=n&255,n>>>=7;break}default:throw new Error("unreachable")}return t}function tt(n,t,e=0){switch(L(n)){case 8:t.set(e++,n&255|o),n/=128;case 7:t.set(e++,n&255|o),n/=128;case 6:t.set(e++,n&255|o),n/=128;case 5:t.set(e++,n&255|o),n/=128;case 4:t.set(e++,n&255|o),n>>>=7;case 3:t.set(e++,n&255|o),n>>>=7;case 2:t.set(e++,n&255|o),n>>>=7;case 1:{t.set(e++,n&255),n>>>=7;break}default:throw new Error("unreachable")}return t}function et(n,t){let e=n[t],r=0;if(r+=e&f,e<o||(e=n[t+1],r+=(e&f)<<7,e<o)||(e=n[t+2],r+=(e&f)<<14,e<o)||(e=n[t+3],r+=(e&f)<<21,e<o)||(e=n[t+4],r+=(e&f)*S,e<o)||(e=n[t+5],r+=(e&f)*V,e<o)||(e=n[t+6],r+=(e&f)*M,e<o)||(e=n[t+7],r+=(e&f)*B,e<o))return r;throw new RangeError("Could not decode varint")}function rt(n,t){let e=n.get(t),r=0;if(r+=e&f,e<o||(e=n.get(t+1),r+=(e&f)<<7,e<o)||(e=n.get(t+2),r+=(e&f)<<14,e<o)||(e=n.get(t+3),r+=(e&f)<<21,e<o)||(e=n.get(t+4),r+=(e&f)*S,e<o)||(e=n.get(t+5),r+=(e&f)*V,e<o)||(e=n.get(t+6),r+=(e&f)*M,e<o)||(e=n.get(t+7),r+=(e&f)*B,e<o))return r;throw new RangeError("Could not decode varint")}function j(n,t,e=0){return t==null&&(t=d(L(n))),t instanceof Uint8Array?Q(n,t,e):tt(n,t,e)}function q(n,t=0){return n instanceof Uint8Array?et(n,t):rt(n,t)}var A=class extends Error{name="InvalidMessageLengthError";code="ERR_INVALID_MSG_LENGTH"},F=class extends Error{name="InvalidDataLengthError";code="ERR_MSG_DATA_TOO_LONG"},E=class extends Error{name="InvalidDataLengthLengthError";code="ERR_MSG_LENGTH_TOO_LONG"};function it(n,t={}){let e=G(n,t);t.maxDataLength!=null&&t.maxLengthLength==null&&(t.maxLengthLength=L(t.maxDataLength));let r=t?.lengthDecoder??q,i=t?.lengthEncoder??j;return{read:async s=>{let a=-1,c=new y;for(;;){c.append(await e.read(1,s));try{a=r(c)}catch(w){if(w instanceof RangeError)continue;throw w}if(a<0)throw new A("Invalid message length");if(t?.maxLengthLength!=null&&c.byteLength>t.maxLengthLength)throw new E("message length length too long");if(a>-1)break}if(t?.maxDataLength!=null&&a>t.maxDataLength)throw new F("message length too long");return e.read(a,s)},write:async(s,a)=>{await e.write(new y(i(s.byteLength),s),a)},writeV:async(s,a)=>{let c=new y(...s.flatMap(w=>[i(w.byteLength),w]));await e.write(c,a)},unwrap:()=>e.unwrap()}}return K(st);})();
 return ItLengthPrefixedStream}));

dist/src/index.js

@@ -29,9 +29,3 @@ /**
 import { Uint8ArrayList } from 'uint8arraylist';
-class CodeError extends Error {
-    code;
-    constructor(message, code) {
-        super(message);
-        this.code = code;
-    }
-}
+import { InvalidDataLengthError, InvalidDataLengthLengthError, InvalidMessageLengthError } from './errors.js';
 export function lpStream(duplex, opts = {}) {
@@ -62,4 +56,7 @@ const bytes = byteStream(duplex, opts);
                 }
+                if (dataLength < 0) {
+                    throw new InvalidMessageLengthError('Invalid message length');
+                }
                 if (opts?.maxLengthLength != null && lengthBuffer.byteLength > opts.maxLengthLength) {
-                    throw new CodeError('message length length too long', 'ERR_MSG_LENGTH_TOO_LONG');
+                    throw new InvalidDataLengthLengthError('message length length too long');
                 }
@@ -71,3 +68,3 @@ if (dataLength > -1) {
             if (opts?.maxDataLength != null && dataLength > opts.maxDataLength) {
-                throw new CodeError('message length too long', 'ERR_MSG_DATA_TOO_LONG');
+                throw new InvalidDataLengthError('message length too long');
             }
@@ -74,0 +71,0 @@ return bytes.read(dataLength, options);

package.json

 {
   "name": "it-length-prefixed-stream",
-  "version": "1.1.8",
+  "version": "1.2.0",
   "description": "Read and write length-prefixed byte arrays over a duplex stream",
@@ -50,3 +50,4 @@ "author": "Alex Potsides <[e-mail]>",
     "test:firefox": "aegir test -t browser -- --browser firefox",
-    "test:firefox-webworker": "aegir test -t webworker -- --browser firefox"
+    "test:firefox-webworker": "aegir test -t webworker -- --browser firefox",
+    "release": "aegir release"
   },
@@ -60,6 +61,6 @@ "dependencies": {
   "devDependencies": {
-    "aegir": "^42.2.5",
+    "aegir": "^44.1.0",
     "it-pair": "^2.0.6",
-    "uint8arrays": "^5.0.3"
+    "uint8arrays": "^5.1.0"
   }
 }

README.md

@@ -55,3 +55,3 @@ # it-length-prefixed-stream
 
-Loading this module through a script tag will make it's exports available as `ItLengthPrefixedStream` in the global namespace.
+Loading this module through a script tag will make its exports available as `ItLengthPrefixedStream` in the global namespace.
 
@@ -58,0 +58,0 @@ ```html

src/index.ts

@@ -29,13 +29,5 @@ /**
 import { Uint8ArrayList } from 'uint8arraylist'
+import { InvalidDataLengthError, InvalidDataLengthLengthError, InvalidMessageLengthError } from './errors.js'
 import type { Duplex } from 'it-stream-types'
 
-class CodeError extends Error {
-  public readonly code: string
-
-  constructor (message: string, code: string) {
-    super(message)
-    this.code = code
-  }
-}
-
 export interface AbortOptions {
@@ -108,4 +100,8 @@ signal?: AbortSignal
 
+        if (dataLength < 0) {
+          throw new InvalidMessageLengthError('Invalid message length')
+        }
+
         if (opts?.maxLengthLength != null && lengthBuffer.byteLength > opts.maxLengthLength) {
-          throw new CodeError('message length length too long', 'ERR_MSG_LENGTH_TOO_LONG')
+          throw new InvalidDataLengthLengthError('message length length too long')
         }
@@ -119,3 +115,3 @@
       if (opts?.maxDataLength != null && dataLength > opts.maxDataLength) {
-        throw new CodeError('message length too long', 'ERR_MSG_DATA_TOO_LONG')
+        throw new InvalidDataLengthError('message length too long')
       }
@@ -122,0 +118,0 @@

No alert changes

Improved metrics

Total package byte prevSize

32389

7.96%

Number of package files

14

40%

Lines of code

373

17.3%

No dependency changes