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Commit df7190e

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Merge pull request #140 from msgpack/tree-shakable
Tree Shakable package
2 parents f28e981 + 7f3416f commit df7190e

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‎example/webpack-example/.gitignore‎

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package-lock.json

‎example/webpack-example/README.md‎

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# Webpack Example for @msgpack/msgpack
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This example demonstrates tree-shaking with webpack.
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## Usage
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```shell
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npm install
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npx webpack
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ls -lh dist/
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```

‎example/webpack-example/index.ts‎

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import { encode } from "@msgpack/msgpack";
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console.log(encode(null));
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‎example/webpack-example/package.json‎

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{
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"name": "webpack-example",
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"version": "1.0.0",
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"description": "",
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"main": "index.js",
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"scripts": {
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"test": "echo \"Error: no test specified\" && exit 1"
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},
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"author": "",
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"license": "ISC",
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"dependencies": {
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"@msgpack/msgpack": "../../"
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},
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"devDependencies": {
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"lodash": "^4.17.20",
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"ts-loader": "^8.0.4",
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"ts-node": "^9.0.0",
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"typescript": "^4.0.3",
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"webpack": "^4.44.2",
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"webpack-cli": "^3.3.12"
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}
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}
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{
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"compilerOptions": {
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/* Visit https://aka.ms/tsconfig.json to read more about this file */
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/* Basic Options */
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// "incremental": true, /* Enable incremental compilation */
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"target": "es5", /* Specify ECMAScript target version: 'ES3' (default), 'ES5', 'ES2015', 'ES2016', 'ES2017', 'ES2018', 'ES2019', 'ES2020', or 'ESNEXT'. */
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"module": "es2020", /* Specify module code generation: 'none', 'commonjs', 'amd', 'system', 'umd', 'es2015', 'es2020', or 'ESNext'. */
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// "lib": [], /* Specify library files to be included in the compilation. */
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// "allowJs": true, /* Allow javascript files to be compiled. */
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// "checkJs": true, /* Report errors in .js files. */
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// "jsx": "preserve", /* Specify JSX code generation: 'preserve', 'react-native', or 'react'. */
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// "declaration": true, /* Generates corresponding '.d.ts' file. */
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// "declarationMap": true, /* Generates a sourcemap for each corresponding '.d.ts' file. */
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// "sourceMap": true, /* Generates corresponding '.map' file. */
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// "outFile": "./", /* Concatenate and emit output to single file. */
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// "outDir": "./", /* Redirect output structure to the directory. */
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// "rootDir": "./", /* Specify the root directory of input files. Use to control the output directory structure with --outDir. */
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// "composite": true, /* Enable project compilation */
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// "tsBuildInfoFile": "./", /* Specify file to store incremental compilation information */
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// "removeComments": true, /* Do not emit comments to output. */
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// "noEmit": true, /* Do not emit outputs. */
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// "importHelpers": true, /* Import emit helpers from 'tslib'. */
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// "downlevelIteration": true, /* Provide full support for iterables in 'for-of', spread, and destructuring when targeting 'ES5' or 'ES3'. */
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// "isolatedModules": true, /* Transpile each file as a separate module (similar to 'ts.transpileModule'). */
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/* Strict Type-Checking Options */
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"strict": true, /* Enable all strict type-checking options. */
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// "noImplicitAny": true, /* Raise error on expressions and declarations with an implied 'any' type. */
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// "strictNullChecks": true, /* Enable strict null checks. */
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// "strictFunctionTypes": true, /* Enable strict checking of function types. */
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// "strictBindCallApply": true, /* Enable strict 'bind', 'call', and 'apply' methods on functions. */
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// "strictPropertyInitialization": true, /* Enable strict checking of property initialization in classes. */
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// "noImplicitThis": true, /* Raise error on 'this' expressions with an implied 'any' type. */
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// "alwaysStrict": true, /* Parse in strict mode and emit "use strict" for each source file. */
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/* Additional Checks */
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// "noUnusedLocals": true, /* Report errors on unused locals. */
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// "noUnusedParameters": true, /* Report errors on unused parameters. */
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// "noImplicitReturns": true, /* Report error when not all code paths in function return a value. */
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// "noFallthroughCasesInSwitch": true, /* Report errors for fallthrough cases in switch statement. */
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/* Module Resolution Options */
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"moduleResolution": "node", /* Specify module resolution strategy: 'node' (Node.js) or 'classic' (TypeScript pre-1.6). */
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"baseUrl": "./", /* Base directory to resolve non-absolute module names. */
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"paths": {
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"@msgpack/msgpack": ["../../"]
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}, /* A series of entries which re-map imports to lookup locations relative to the 'baseUrl'. */
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// "rootDirs": [], /* List of root folders whose combined content represents the structure of the project at runtime. */
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// "typeRoots": [], /* List of folders to include type definitions from. */
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// "types": [], /* Type declaration files to be included in compilation. */
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// "allowSyntheticDefaultImports": true, /* Allow default imports from modules with no default export. This does not affect code emit, just typechecking. */
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"esModuleInterop": true, /* Enables emit interoperability between CommonJS and ES Modules via creation of namespace objects for all imports. Implies 'allowSyntheticDefaultImports'. */
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// "preserveSymlinks": true, /* Do not resolve the real path of symlinks. */
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// "allowUmdGlobalAccess": true, /* Allow accessing UMD globals from modules. */
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/* Source Map Options */
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// "sourceRoot": "", /* Specify the location where debugger should locate TypeScript files instead of source locations. */
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// "mapRoot": "", /* Specify the location where debugger should locate map files instead of generated locations. */
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// "inlineSourceMap": true, /* Emit a single file with source maps instead of having a separate file. */
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// "inlineSources": true, /* Emit the source alongside the sourcemaps within a single file; requires '--inlineSourceMap' or '--sourceMap' to be set. */
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/* Experimental Options */
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// "experimentalDecorators": true, /* Enables experimental support for ES7 decorators. */
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// "emitDecoratorMetadata": true, /* Enables experimental support for emitting type metadata for decorators. */
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/* Advanced Options */
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"skipLibCheck": true, /* Skip type checking of declaration files. */
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"forceConsistentCasingInFileNames": true /* Disallow inconsistently-cased references to the same file. */
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}
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}
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const path = require("path");
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const webpack = require("webpack");
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const _ = require("lodash");
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const config = {
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mode: "production",
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entry: "./index.ts",
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output: {
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path: path.resolve(__dirname, "dist"),
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filename: undefined, // will be set later
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},
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resolve: {
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extensions: [".ts", ".tsx", ".mjs", ".js", ".json", ".wasm"],
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},
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module: {
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rules: [
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{
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test: /\.tsx?$/,
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loader: "ts-loader",
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options: {
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configFile: "tsconfig.json",
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},
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},
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],
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},
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plugins: [
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new webpack.DefinePlugin({
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// eslint-disable-next-line @typescript-eslint/naming-convention
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"process.env.TEXT_ENCODING": "undefined",
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// eslint-disable-next-line @typescript-eslint/naming-convention
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"process.env.TEXT_DECODER": "undefined",
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}),
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],
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optimization: {
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noEmitOnErrors: true,
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minimize: false,
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},
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// We don't need NodeJS stuff on browsers!
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// https://webpack.js.org/configuration/node/
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node: false,
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devtool: "source-map",
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};
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module.exports = [
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((config) => {
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config.output.filename = "bundle.min.js";
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config.optimization.minimize = true;
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return config;
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})(_.cloneDeep(config)),
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((config) => {
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config.output.filename = "bundle.js";
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config.optimization.minimize = false;
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return config;
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})(_.cloneDeep(config)),
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];

‎package.json‎

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"author": "The MessagePack community",
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"license": "ISC",
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"main": "./dist/index.js",
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"browser": "./dist.es5+umd/msgpack.min.js",
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"module": "./dist.es5+esm/index.js",
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"cdn": "./dist.es5+umd/msgpack.min.js",
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"unpkg": "./dist.es5+umd/msgpack.min.js",
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"types": "./dist/index.d.ts",
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"sideEffects": false,
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"scripts": {

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