multicodec - npm Package Compare versions

Comparing version 2.0.2 to 2.0.3

CHANGELOG.md

@@ -0,1 +1,10 @@
+## [2.0.3](https://github.com/multiformats/js-multicodec/compare/v2.0.2...v2.0.3) (2020-12-11)
+
+
+### Features
+
+* add ts types ([#70](https://github.com/multiformats/js-multicodec/issues/70)) ([25cf33f](https://github.com/multiformats/js-multicodec/commit/25cf33fdc392da21d776f6f4e85b678101724364))
+
+
+
 ## [2.0.2](https://github.com/multiformats/js-multicodec/compare/v2.0.1...v2.0.2) (2020-12-11)
@@ -2,0 +11,0 @@

dist/index.min.js

@@ -1,1 +0,1 @@
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i(n[0],n[1],n[2],n[3]),e),{}),b=a.reduce((e,n)=>(e[n[1]]=c[n[0]],e),{});e.exports={names:c,codes:b}},function(e,n,t){"use strict";const{TextEncoder:s,TextDecoder:i}=t(1),r=new i,o=new s;e.exports={decodeText:e=>r.decode(e),encodeText:e=>o.encode(e),concat:function(e,n){const t=new Uint8Array(n);let s=0;for(const i of e)t.set(i,s),s+=i.length;return t}}},function(e,n,t){e.exports=t(7)},function(e,n,t){"use strict";const s=t(2),i=t(11),r=t(12),o=t(3),k=t(18);const a=t(19),c=t(20);e.exports={addPrefix:function(e,n){let t;if(e instanceof Uint8Array)t=o.varintUint8ArrayEncode(e);else{if(!r[e])throw new Error("multicodec not recognized");t=r[e]}return k([t,n],t.length+n.length)},rmPrefix:function(e){return s.decode(e),e.slice(s.decode.bytes)},getCodec:function(e){const n=s.decode(e),t=i.get(n);if(void 0===t)throw new Error(`Code ${n} not found`);return t},getName:function(e){return i.get(e)},getNumber:function(e){const n=r[e];if(void 0===n)throw new Error("Codec `"+e+"` not found");return 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s=Math.pow(2,7),i=Math.pow(2,14),r=Math.pow(2,21),o=Math.pow(2,28),k=Math.pow(2,35),a=Math.pow(2,42),c=Math.pow(2,49),b=Math.pow(2,56),l=Math.pow(2,63);e.exports=function(e){return e<s?1:e<i?2:e<r?3:e<o?4:e<k?5:e<a?6:e<c?7:e<b?8:e<l?9:10}},function(e,n,t){"use strict";const{baseTable:s}=t(0),i=new Map;for(const r in s){const e=s[r];i.set(e,r)}e.exports=Object.freeze(i)},function(e,n,t){"use strict";const{baseTable:s}=t(0),i=t(3).varintEncode,r={};for(const o in s){const e=s[o];r[o]=i(e)}e.exports=Object.freeze(r)},function(e,n,t){"use strict";const{names:s}=t(4),{TextDecoder:i}=t(1),r=new i("utf8");e.exports=function(e,n="utf8"){if("utf8"===n||"utf-8"===n)return r.decode(e);if("ascii"===n)return function(e){let n="";for(let t=0;t<e.length;t++)n+=String.fromCharCode(e[t]);return n}(e);const t=s[n];if(!t)throw new Error("Unknown base");return t.encode(e)}},function(e,n,t){"use strict";e.exports=function(e){if(e.length>=255)throw new TypeError("Alphabet too long");for(var n=new Uint8Array(256),t=0;t<n.length;t++)n[t]=255;for(var s=0;s<e.length;s++){var i=e.charAt(s),r=i.charCodeAt(0);if(255!==n[r])throw new TypeError(i+" is ambiguous");n[r]=s}var o=e.length,k=e.charAt(0),a=Math.log(o)/Math.log(256),c=Math.log(256)/Math.log(o);function b(e){if("string"!=typeof e)throw new TypeError("Expected String");if(0===e.length)return new Uint8Array;var t=0;if(" "!==e[t]){for(var s=0,i=0;e[t]===k;)s++,t++;for(var r=(e.length-t)*a+1>>>0,c=new Uint8Array(r);e[t];){var b=n[e.charCodeAt(t)];if(255===b)return;for(var l=0,u=r-1;(0!==b||l<i)&&-1!==u;u--,l++)b+=o*c[u]>>>0,c[u]=b%256>>>0,b=b/256>>>0;if(0!==b)throw new Error("Non-zero carry");i=l,t++}if(" "!==e[t]){for(var f=r-i;f!==r&&0===c[f];)f++;for(var d=new Uint8Array(s+(r-f)),p=s;f!==r;)d[p++]=c[f++];return d}}}return{encode:function(n){if(n instanceof Uint8Array||(ArrayBuffer.isView(n)?n=new Uint8Array(n.buffer,n.byteOffset,n.byteLength):Array.isArray(n)&&(n=Uint8Array.from(n))),!(n instanceof Uint8Array))throw new TypeError("Expected Uint8Array");if(0===n.length)return"";for(var t=0,s=0,i=0,r=n.length;i!==r&&0===n[i];)i++,t++;for(var a=(r-i)*c+1>>>0,b=new Uint8Array(a);i!==r;){for(var l=n[i],u=0,f=a-1;(0!==l||u<s)&&-1!==f;f--,u++)l+=256*b[f]>>>0,b[f]=l%o>>>0,l=l/o>>>0;if(0!==l)throw new Error("Non-zero carry");s=u,i++}for(var d=a-s;d!==a&&0===b[d];)d++;for(var p=k.repeat(t);d<a;++d)p+=e.charAt(b[d]);return p},decodeUnsafe:b,decode:function(e){var n=b(e);if(n)return n;throw new Error("Non-base"+o+" character")}}}},function(e,n,t){"use strict";const{encodeText:s}=t(5);e.exports=class{constructor(e,n,t,i){this.name=e,this.code=n,this.codeBuf=s(this.code),this.alphabet=i,this.codec=t(i)}encode(e){return this.codec.encode(e)}decode(e){for(const n of e)if(this.alphabet&&this.alphabet.indexOf(n)<0)throw new Error(`invalid character '${n}' in '${e}'`);return this.codec.decode(e)}}},function(e,n,t){"use strict";e.exports={rfc4648:e=>n=>({encode:t=>((e,n,t)=>{const s="="===n[n.length-1],i=(1<<t)-1;let r="",o=0,k=0;for(let a=0;a<e.length;++a)for(k=k<<8|e[a],o+=8;o>t;)o-=t,r+=n[i&k>>o];if(o&&(r+=n[i&k<<t-o]),s)for(;r.length*t&7;)r+="=";return r})(t,n,e),decode:t=>((e,n,t)=>{const s={};for(let c=0;c<n.length;++c)s[n[c]]=c;let i=e.length;for(;"="===e[i-1];)--i;const r=new Uint8Array(i*t/8|0);let o=0,k=0,a=0;for(let c=0;c<i;++c){const n=s[e[c]];if(void 0===n)throw new SyntaxError("Invalid character "+e[c]);k=k<<t|n,o+=t,o>=8&&(o-=8,r[a++]=255&k>>o)}if(o>=t||255&k<<8-o)throw new SyntaxError("Unexpected end of data");return r})(t,n,e)})}},function(e,n,t){"use strict";const{names:s}=t(4),{TextEncoder:i}=t(1),r=new i;e.exports=function(e,n="utf8"){if("utf8"===n||"utf-8"===n)return r.encode(e);if("ascii"===n)return function(e){const n=new Uint8Array(e.length);for(let t=0;t<e.length;t++)n[t]=e.charCodeAt(t);return n}(e);const t=s[n];if(!t)throw new Error("Unknown base");return t.decode(e)}},function(e,n,t){"use strict";e.exports=function(e,n){n||(n=e.reduce((e,n)=>e+n.length,0));const t=new Uint8Array(n);let s=0;for(const i of e)t.set(i,s),s+=i.length;return t}},function(e,n,t){"use strict";const{baseTable:s}=t(0),i={};for(const[r,o]of Object.entries(s)){i[r.toUpperCase().replace(/-/g,"_")]=o}e.exports=Object.freeze(i)},function(e,n,t){"use strict";const{baseTable:s}=t(0),i={};for(const[r,o]of Object.entries(s))void 0===i[o]&&(i[o]=r);e.exports=Object.freeze(i)}])}));

package.json

 {
   "name": "multicodec",
-  "version": "2.0.2",
+  "version": "2.0.3",
   "description": "JavaScript implementation of the multicodec specification",
   "leadMaintainer": "Henrique Dias <[e-mail]>",
   "main": "src/index.js",
+  "types": "dist/src/index.d.ts",
+  "typesVersions": {
+    "*": {
+      "src/*": [
+        "dist/src/*",
+        "dist/src/*/index"
+      ]
+    }
+  },
   "scripts": {
@@ -8,0 +17,0 @@ "lint": "aegir lint",

README.md

@@ -32,8 +32,2 @@ # js-multicodec <!-- omit in toc -->
 
-The type definitions for this package are available on http://definitelytyped.org/. To install just use:
-
- ```sh
- $ npm install -D @types/multicodec
- ```
-
 ## Usage
@@ -40,0 +34,0 @@

src/constants.js

 'use strict'
 
-const table = require('./base-table.json')
+/** @typedef {import('./generated-types').ConstantNumberMap} ConstantNumberMap */
 
-// map for codecConstant -> code
-const constants = {}
+const { baseTable } = require('./base-table')
 
-for (const [name, code] of Object.entries(table)) {
-  constants[name.toUpperCase().replace(/-/g, '_')] = code
+const constants = /** @type {ConstantNumberMap} */({})
+
+for (const [name, code] of Object.entries(baseTable)) {
+  const constant = name.toUpperCase().replace(/-/g, '_')
+  constants[constant] = code
 }
 
 module.exports = Object.freeze(constants)

src/index.js

@@ -14,2 +14,5 @@ /**
 
+/** @typedef {import('./generated-types').CodecName} CodecName */
+/** @typedef {import('./generated-types').CodecNumber} CodecNumber */
+
 const varint = require('varint')
@@ -21,12 +24,10 @@ const intTable = require('./int-table')
 
-exports = module.exports
-
 /**
  * Prefix a buffer with a multicodec-packed.
  *
- * @param {string|number} multicodecStrOrCode
+ * @param {CodecName|Uint8Array} multicodecStrOrCode
  * @param {Uint8Array} data
  * @returns {Uint8Array}
  */
-exports.addPrefix = (multicodecStrOrCode, data) => {
+function addPrefix (multicodecStrOrCode, data) {
   let prefix
@@ -52,3 +53,3 @@
  */
-exports.rmPrefix = (data) => {
+function rmPrefix (data) {
   varint.decode(data)
@@ -62,5 +63,5 @@ return data.slice(varint.decode.bytes)
  * @param {Uint8Array} prefixedData
- * @returns {string}
+ * @returns {CodecName}
  */
-exports.getCodec = (prefixedData) => {
+function getCodec (prefixedData) {
   const code = varint.decode(prefixedData)
@@ -77,6 +78,6 @@ const codecName = intTable.get(code)
  *
- * @param {number} codec
- * @returns {string}
+ * @param {CodecNumber} codec
+ * @returns {CodecName|undefined}
  */
-exports.getName = (codec) => {
+function getName (codec) {
   return intTable.get(codec)
@@ -88,6 +89,6 @@ }
  *
- * @param {string} name
- * @returns {number}
+ * @param {CodecName} name
+ * @returns {CodecNumber}
  */
-exports.getNumber = (name) => {
+function getNumber (name) {
   const code = codecNameToCodeVarint[name]
@@ -104,5 +105,5 @@ if (code === undefined) {
  * @param {Uint8Array} prefixedData
- * @returns {number}
+ * @returns {CodecNumber}
  */
-exports.getCode = (prefixedData) => {
+function getCode (prefixedData) {
   return varint.decode(prefixedData)
@@ -114,6 +115,6 @@ }
  *
- * @param {string} codecName
+ * @param {CodecName} codecName
  * @returns {Uint8Array}
  */
-exports.getCodeVarint = (codecName) => {
+function getCodeVarint (codecName) {
   const code = codecNameToCodeVarint[codecName]
@@ -129,6 +130,6 @@ if (code === undefined) {
  *
- * @param {number} code
+ * @param {CodecNumber} code
  * @returns {Array.<number>}
  */
-exports.getVarint = (code) => {
+function getVarint (code) {
   return varint.encode(code)
@@ -139,5 +140,17 @@ }
 const constants = require('./constants')
-Object.assign(exports, constants)
 
 // Human friendly names for printing, e.g. in error messages
-exports.print = require('./print')
+const print = require('./print')
+
+module.exports = {
+  addPrefix,
+  rmPrefix,
+  getCodec,
+  getName,
+  getNumber,
+  getCode,
+  getCodeVarint,
+  getVarint,
+  print,
+  ...constants
+}

src/int-table.js

 'use strict'
-const baseTable = require('./base-table.json')
 
-// map for hexString -> codecName
+/** @typedef {import('./generated-types').CodecName} CodecName */
+/** @typedef {import('./generated-types').CodecNumber} CodecNumber */
+
+const { baseTable } = require('./base-table')
+
+/**
+ * @type {Map<CodecNumber,CodecName>}
+ */
 const nameTable = new Map()
@@ -9,5 +15,5 @@
   const code = baseTable[encodingName]
-  nameTable.set(code, encodingName)
+  nameTable.set(code, /** @type {CodecName} */(encodingName))
 }
 
 module.exports = Object.freeze(nameTable)

src/print.js

 'use strict'
 
-const table = require('./base-table.json')
+/** @typedef {import('./generated-types').CodecName} CodecName */
+/** @typedef {import('./generated-types').NumberNameMap} NumberNameMap */
 
-// map for code -> print friendly name
-const tableByCode = {}
+const { baseTable } = require('./base-table')
 
-for (const [name, code] of Object.entries(table)) {
-  if (tableByCode[code] === undefined) tableByCode[code] = name
+const tableByCode = /** @type {NumberNameMap} */({})
+
+for (const [name, code] of Object.entries(baseTable)) {
+  if (tableByCode[code] === undefined) {
+    tableByCode[code] = /** @type {CodecName} **/(name)
+  }
 }
 
-module.exports = Object.freeze(tableByCode)
+module.exports = /** @type {NumberNameMap} */(Object.freeze(tableByCode))

src/varint-table.js

 'use strict'
 
-const baseTable = require('./base-table.json')
+/** @typedef {import('./generated-types').NameUint8ArrayMap} NameUint8ArrayMap */
+
+const { baseTable } = require('./base-table')
 const varintEncode = require('./util').varintEncode
 
-// map for codecName -> codeVarintUint8Array
-const varintTable = {}
+const varintTable = /** @type {NameUint8ArrayMap} */ ({})
 
@@ -9,0 +10,0 @@ for (const encodingName in baseTable) {

tools/update-table.js

 'use strict'
 
-const bent = require('bent')
+const fs = require('fs')
 const path = require('path')
-
-const get = bent('string')
+const http = require('ipfs-utils/src/http')
 const url = 'https://raw.githubusercontent.com/multiformats/multicodec/master/table.csv'
-const fs = require('fs')
 
-const parse = async function * () {
-  const str = await get(url)
-  const lines = str.split('\n')
-  lines.shift()
-  for (const line of lines) {
-    if (!line.length) continue
-    const [name, tag, code] = line.split(',')
-    yield { name: name.trim(), tag: tag.trim(), code: parseInt(code.trim(), 16) }
-  }
-}
-
 const run = async () => {
-  const table = {}
+  const rsp = await http.get(url)
+  const lines = (await rsp.text()).split('\n')
+  const names = []
+  const codes = []
+  const processed = lines
+    .slice(1, lines.length - 1)
+    .map(l => {
+      const [name, tag, code] = l.split(',')
+      return [name.trim(), tag.trim(), code.trim()]
+    })
+    .reduce((acc, l, index, arr) => {
+      names.push(`'${l[0]}'`)
+      codes.push(`${l[2].replace('\'', '')}`)
+      acc += `  '${l[0]}': ${l[2].replace('\'', '')}`
 
-  for await (const { name, code } of parse()) {
-    table[name] = code
-  }
+      if (index !== arr.length - 1) {
+        acc += ',\n'
+      }
+      return acc
+    }, '')
 
-  fs.writeFileSync(path.join(__dirname, '../src/base-table.json'), JSON.stringify(table, null, 2))
+  const typesTemplate = `// DO NOT CHANGE THIS FILE MANUALLY. IT IS GENERATED BY tools/update-table.js
+
+/**
+ * Constant names for all available codecs
+ */
+export type CodecConstant = ${names.map(n => `${n.toUpperCase().replace(/-/g, '_')}`).join(' | ')};
+
+/**
+ * Names for all available codecs
+ */
+export type CodecName = ${names.join(' | ')};
+
+/**
+ * Number for all available codecs
+ */
+export type CodecNumber = ${codes.join(' | ')};
+
+export type ConstantNumberMap = Record<CodecConstant, CodecNumber>
+export type NameUint8ArrayMap = Record<CodecName, Uint8Array>
+export type NumberNameMap = Record<CodecNumber, CodecName>
+export type NameNumberMap = Record<CodecName, CodecNumber>
+`
+
+  const tableTemplate = `// DO NOT CHANGE THIS FILE. IT IS GENERATED BY tools/update-table.js
+/* eslint quote-props: off */
+'use strict'
+
+/**
+ * @type {import('./generated-types').NameNumberMap}
+ */
+const baseTable = Object.freeze({
+${processed}
+})
+
+module.exports = { baseTable }
+`
+
+  fs.writeFileSync(path.join(__dirname, '../src/generated-types.ts'), typesTemplate)
+  fs.writeFileSync(path.join(__dirname, '../src/base-table.js'), tableTemplate)
 }
+
 run()

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