334 lines
10 KiB
JavaScript
334 lines
10 KiB
JavaScript
|
/*
|
||
|
|
MIT License http://www.opensource.org/licenses/mit-license.php
|
||
|
|
Author Tobias Koppers @sokra
|
||
|
|
*/
|
||
|
|
|
||
|
|
"use strict";
|
||
|
|
|
||
|
|
const browserslistTargetHandler = require("./browserslistTargetHandler");
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @param {string} context the context directory
|
||
|
|
* @returns {string} default target
|
||
|
|
*/
|
||
|
|
const getDefaultTarget = context => {
|
||
|
|
const browsers = browserslistTargetHandler.load(null, context);
|
||
|
|
return browsers ? "browserslist" : "web";
|
||
|
|
};
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @typedef {Object} PlatformTargetProperties
|
||
|
|
* @property {boolean | null} web web platform, importing of http(s) and std: is available
|
||
|
|
* @property {boolean | null} browser browser platform, running in a normal web browser
|
||
|
|
* @property {boolean | null} webworker (Web)Worker platform, running in a web/shared/service worker
|
||
|
|
* @property {boolean | null} node node platform, require of node built-in modules is available
|
||
|
|
* @property {boolean | null} nwjs nwjs platform, require of legacy nw.gui is available
|
||
|
|
* @property {boolean | null} electron electron platform, require of some electron built-in modules is available
|
||
|
|
*/
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @typedef {Object} ElectronContextTargetProperties
|
||
|
|
* @property {boolean | null} electronMain in main context
|
||
|
|
* @property {boolean | null} electronPreload in preload context
|
||
|
|
* @property {boolean | null} electronRenderer in renderer context with node integration
|
||
|
|
*/
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @typedef {Object} ApiTargetProperties
|
||
|
|
* @property {boolean | null} require has require function available
|
||
|
|
* @property {boolean | null} nodeBuiltins has node.js built-in modules available
|
||
|
|
* @property {boolean | null} document has document available (allows script tags)
|
||
|
|
* @property {boolean | null} importScripts has importScripts available
|
||
|
|
* @property {boolean | null} importScriptsInWorker has importScripts available when creating a worker
|
||
|
|
* @property {boolean | null} fetchWasm has fetch function available for WebAssembly
|
||
|
|
* @property {boolean | null} global has global variable available
|
||
|
|
*/
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @typedef {Object} EcmaTargetProperties
|
||
|
|
* @property {boolean | null} globalThis has globalThis variable available
|
||
|
|
* @property {boolean | null} bigIntLiteral big int literal syntax is available
|
||
|
|
* @property {boolean | null} const const and let variable declarations are available
|
||
|
|
* @property {boolean | null} arrowFunction arrow functions are available
|
||
|
|
* @property {boolean | null} forOf for of iteration is available
|
||
|
|
* @property {boolean | null} destructuring destructuring is available
|
||
|
|
* @property {boolean | null} dynamicImport async import() is available
|
||
|
|
* @property {boolean | null} dynamicImportInWorker async import() is available when creating a worker
|
||
|
|
* @property {boolean | null} module ESM syntax is available (when in module)
|
||
|
|
*/
|
||
|
|
|
||
|
|
///** @typedef {PlatformTargetProperties | ApiTargetProperties | EcmaTargetProperties | PlatformTargetProperties & ApiTargetProperties | PlatformTargetProperties & EcmaTargetProperties | ApiTargetProperties & EcmaTargetProperties} TargetProperties */
|
||
|
|
/** @template T @typedef {{ [P in keyof T]?: never }} Never<T> */
|
||
|
|
/** @template A @template B @typedef {(A & Never<B>) | (Never<A> & B) | (A & B)} Mix<A,B> */
|
||
|
|
/** @typedef {Mix<Mix<PlatformTargetProperties, ElectronContextTargetProperties>, Mix<ApiTargetProperties, EcmaTargetProperties>>} TargetProperties */
|
||
|
|
|
||
|
|
const versionDependent = (major, minor) => {
|
||
|
|
if (!major) return () => /** @type {undefined} */ (undefined);
|
||
|
|
major = +major;
|
||
|
|
minor = minor ? +minor : 0;
|
||
|
|
return (vMajor, vMinor = 0) => {
|
||
|
|
return major > vMajor || (major === vMajor && minor >= vMinor);
|
||
|
|
};
|
||
|
|
};
|
||
|
|
|
||
|
|
/** @type {[string, string, RegExp, (...args: string[]) => TargetProperties | false][]} */
|
||
|
|
const TARGETS = [
|
||
|
|
[
|
||
|
|
"browserslist / browserslist:env / browserslist:query / browserslist:path-to-config / browserslist:path-to-config:env",
|
||
|
|
"Resolve features from browserslist. Will resolve browserslist config automatically. Only browser or node queries are supported (electron is not supported). Examples: 'browserslist:modern' to use 'modern' environment from browserslist config",
|
||
|
|
/^browserslist(?::(.+))?$/,
|
||
|
|
(rest, context) => {
|
||
|
|
const browsers = browserslistTargetHandler.load(
|
||
|
|
rest ? rest.trim() : null,
|
||
|
|
context
|
||
|
|
);
|
||
|
|
if (!browsers) {
|
||
|
|
throw new Error(`No browserslist config found to handle the 'browserslist' target.
|
||
|
|
See https://github.com/browserslist/browserslist#queries for possible ways to provide a config.
|
||
|
|
The recommended way is to add a 'browserslist' key to your package.json and list supported browsers (resp. node.js versions).
|
||
|
|
You can also more options via the 'target' option: 'browserslist' / 'browserslist:env' / 'browserslist:query' / 'browserslist:path-to-config' / 'browserslist:path-to-config:env'`);
|
||
|
|
}
|
||
|
|
return browserslistTargetHandler.resolve(browsers);
|
||
|
|
}
|
||
|
|
],
|
||
|
|
[
|
||
|
|
"web",
|
||
|
|
"Web browser.",
|
||
|
|
/^web$/,
|
||
|
|
() => {
|
||
|
|
return {
|
||
|
|
web: true,
|
||
|
|
browser: true,
|
||
|
|
webworker: null,
|
||
|
|
node: false,
|
||
|
|
electron: false,
|
||
|
|
nwjs: false,
|
||
|
|
|
||
|
|
document: true,
|
||
|
|
importScriptsInWorker: true,
|
||
|
|
fetchWasm: true,
|
||
|
|
nodeBuiltins: false,
|
||
|
|
importScripts: false,
|
||
|
|
require: false,
|
||
|
|
global: false
|
||
|
|
};
|
||
|
|
}
|
||
|
|
],
|
||
|
|
[
|
||
|
|
"webworker",
|
||
|
|
"Web Worker, SharedWorker or Service Worker.",
|
||
|
|
/^webworker$/,
|
||
|
|
() => {
|
||
|
|
return {
|
||
|
|
web: true,
|
||
|
|
browser: true,
|
||
|
|
webworker: true,
|
||
|
|
node: false,
|
||
|
|
electron: false,
|
||
|
|
nwjs: false,
|
||
|
|
|
||
|
|
importScripts: true,
|
||
|
|
importScriptsInWorker: true,
|
||
|
|
fetchWasm: true,
|
||
|
|
nodeBuiltins: false,
|
||
|
|
require: false,
|
||
|
|
document: false,
|
||
|
|
global: false
|
||
|
|
};
|
||
|
|
}
|
||
|
|
],
|
||
|
|
[
|
||
|
|
"[async-]node[X[.Y]]",
|
||
|
|
"Node.js in version X.Y. The 'async-' prefix will load chunks asynchronously via 'fs' and 'vm' instead of 'require()'. Examples: node14.5, async-node10.",
|
||
|
|
/^(async-)?node(\d+(?:\.(\d+))?)?$/,
|
||
|
|
(asyncFlag, major, minor) => {
|
||
|
|
const v = versionDependent(major, minor);
|
||
|
|
// see https://node.green/
|
||
|
|
return {
|
||
|
|
node: true,
|
||
|
|
electron: false,
|
||
|
|
nwjs: false,
|
||
|
|
web: false,
|
||
|
|
webworker: false,
|
||
|
|
browser: false,
|
||
|
|
|
||
|
|
require: !asyncFlag,
|
||
|
|
nodeBuiltins: true,
|
||
|
|
global: true,
|
||
|
|
document: false,
|
||
|
|
fetchWasm: false,
|
||
|
|
importScripts: false,
|
||
|
|
importScriptsInWorker: false,
|
||
|
|
|
||
|
|
globalThis: v(12),
|
||
|
|
const: v(6),
|
||
|
|
arrowFunction: v(6),
|
||
|
|
forOf: v(5),
|
||
|
|
destructuring: v(6),
|
||
|
|
bigIntLiteral: v(10, 4),
|
||
|
|
dynamicImport: v(12, 17),
|
||
|
|
dynamicImportInWorker: major ? false : undefined,
|
||
|
|
module: v(12, 17)
|
||
|
|
};
|
||
|
|
}
|
||
|
|
],
|
||
|
|
[
|
||
|
|
"electron[X[.Y]]-main/preload/renderer",
|
||
|
|
"Electron in version X.Y. Script is running in main, preload resp. renderer context.",
|
||
|
|
/^electron(\d+(?:\.(\d+))?)?-(main|preload|renderer)$/,
|
||
|
|
(major, minor, context) => {
|
||
|
|
const v = versionDependent(major, minor);
|
||
|
|
// see https://node.green/ + https://github.com/electron/releases
|
||
|
|
return {
|
||
|
|
node: true,
|
||
|
|
electron: true,
|
||
|
|
web: context !== "main",
|
||
|
|
webworker: false,
|
||
|
|
browser: false,
|
||
|
|
nwjs: false,
|
||
|
|
|
||
|
|
electronMain: context === "main",
|
||
|
|
electronPreload: context === "preload",
|
||
|
|
electronRenderer: context === "renderer",
|
||
|
|
|
||
|
|
global: true,
|
||
|
|
nodeBuiltins: true,
|
||
|
|
require: true,
|
||
|
|
document: context === "renderer",
|
||
|
|
fetchWasm: context === "renderer",
|
||
|
|
importScripts: false,
|
||
|
|
importScriptsInWorker: true,
|
||
|
|
|
||
|
|
globalThis: v(5),
|
||
|
|
const: v(1, 1),
|
||
|
|
arrowFunction: v(1, 1),
|
||
|
|
forOf: v(0, 36),
|
||
|
|
destructuring: v(1, 1),
|
||
|
|
bigIntLiteral: v(4),
|
||
|
|
dynamicImport: v(11),
|
||
|
|
dynamicImportInWorker: major ? false : undefined,
|
||
|
|
module: v(11)
|
||
|
|
};
|
||
|
|
}
|
||
|
|
],
|
||
|
|
[
|
||
|
|
"nwjs[X[.Y]] / node-webkit[X[.Y]]",
|
||
|
|
"NW.js in version X.Y.",
|
||
|
|
/^(?:nwjs|node-webkit)(\d+(?:\.(\d+))?)?$/,
|
||
|
|
(major, minor) => {
|
||
|
|
const v = versionDependent(major, minor);
|
||
|
|
// see https://node.green/ + https://github.com/nwjs/nw.js/blob/nw48/CHANGELOG.md
|
||
|
|
return {
|
||
|
|
node: true,
|
||
|
|
web: true,
|
||
|
|
nwjs: true,
|
||
|
|
webworker: null,
|
||
|
|
browser: false,
|
||
|
|
electron: false,
|
||
|
|
|
||
|
|
global: true,
|
||
|
|
nodeBuiltins: true,
|
||
|
|
document: false,
|
||
|
|
importScriptsInWorker: false,
|
||
|
|
fetchWasm: false,
|
||
|
|
importScripts: false,
|
||
|
|
require: false,
|
||
|
|
|
||
|
|
globalThis: v(0, 43),
|
||
|
|
const: v(0, 15),
|
||
|
|
arrowFunction: v(0, 15),
|
||
|
|
forOf: v(0, 13),
|
||
|
|
destructuring: v(0, 15),
|
||
|
|
bigIntLiteral: v(0, 32),
|
||
|
|
dynamicImport: v(0, 43),
|
||
|
|
dynamicImportInWorker: major ? false : undefined,
|
||
|
|
module: v(0, 43)
|
||
|
|
};
|
||
|
|
}
|
||
|
|
],
|
||
|
|
[
|
||
|
|
"esX",
|
||
|
|
"EcmaScript in this version. Examples: es2020, es5.",
|
||
|
|
/^es(\d+)$/,
|
||
|
|
version => {
|
||
|
|
let v = +version;
|
||
|
|
if (v < 1000) v = v + 2009;
|
||
|
|
return {
|
||
|
|
const: v >= 2015,
|
||
|
|
arrowFunction: v >= 2015,
|
||
|
|
forOf: v >= 2015,
|
||
|
|
destructuring: v >= 2015,
|
||
|
|
module: v >= 2015,
|
||
|
|
globalThis: v >= 2020,
|
||
|
|
bigIntLiteral: v >= 2020,
|
||
|
|
dynamicImport: v >= 2020,
|
||
|
|
dynamicImportInWorker: v >= 2020
|
||
|
|
};
|
||
|
|
}
|
||
|
|
]
|
||
|
|
];
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @param {string} target the target
|
||
|
|
* @param {string} context the context directory
|
||
|
|
* @returns {TargetProperties} target properties
|
||
|
|
*/
|
||
|
|
const getTargetProperties = (target, context) => {
|
||
|
|
for (const [, , regExp, handler] of TARGETS) {
|
||
|
|
const match = regExp.exec(target);
|
||
|
|
if (match) {
|
||
|
|
const [, ...args] = match;
|
||
|
|
const result = handler(...args, context);
|
||
|
|
if (result) return result;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
throw new Error(
|
||
|
|
`Unknown target '${target}'. The following targets are supported:\n${TARGETS.map(
|
||
|
|
([name, description]) => `* ${name}: ${description}`
|
||
|
|
).join("\n")}`
|
||
|
|
);
|
||
|
|
};
|
||
|
|
|
||
|
|
const mergeTargetProperties = targetProperties => {
|
||
|
|
const keys = new Set();
|
||
|
|
for (const tp of targetProperties) {
|
||
|
|
for (const key of Object.keys(tp)) {
|
||
|
|
keys.add(key);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
const result = {};
|
||
|
|
for (const key of keys) {
|
||
|
|
let hasTrue = false;
|
||
|
|
let hasFalse = false;
|
||
|
|
for (const tp of targetProperties) {
|
||
|
|
const value = tp[key];
|
||
|
|
switch (value) {
|
||
|
|
case true:
|
||
|
|
hasTrue = true;
|
||
|
|
break;
|
||
|
|
case false:
|
||
|
|
hasFalse = true;
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if (hasTrue || hasFalse)
|
||
|
|
result[key] = hasFalse && hasTrue ? null : hasTrue ? true : false;
|
||
|
|
}
|
||
|
|
return /** @type {TargetProperties} */ (result);
|
||
|
|
};
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @param {string[]} targets the targets
|
||
|
|
* @param {string} context the context directory
|
||
|
|
* @returns {TargetProperties} target properties
|
||
|
|
*/
|
||
|
|
const getTargetsProperties = (targets, context) => {
|
||
|
|
return mergeTargetProperties(
|
||
|
|
targets.map(t => getTargetProperties(t, context))
|
||
|
|
);
|
||
|
|
};
|
||
|
|
|
||
|
|
exports.getDefaultTarget = getDefaultTarget;
|
||
|
|
exports.getTargetProperties = getTargetProperties;
|
||
|
|
exports.getTargetsProperties = getTargetsProperties;
|