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- import { declare } from '@babel/helper-plugin-utils';
- import _getTargets, { prettifyTargets, getInclusionReasons, isRequired } from '@babel/helper-compilation-targets';
- import * as babel from '@babel/core';
- const {
- types: t$1,
- template
- } = babel.default || babel;
- function intersection(a, b) {
- const result = new Set();
- a.forEach(v => b.has(v) && result.add(v));
- return result;
- }
- function has$1(object, key) {
- return Object.prototype.hasOwnProperty.call(object, key);
- }
- function getType(target) {
- return Object.prototype.toString.call(target).slice(8, -1);
- }
- function resolveId(path) {
- if (path.isIdentifier() && !path.scope.hasBinding(path.node.name,
- /* noGlobals */
- true)) {
- return path.node.name;
- }
- const {
- deopt
- } = path.evaluate();
- if (deopt && deopt.isIdentifier()) {
- return deopt.node.name;
- }
- }
- function resolveKey(path, computed = false) {
- const {
- node,
- parent,
- scope
- } = path;
- if (path.isStringLiteral()) return node.value;
- const {
- name
- } = node;
- const isIdentifier = path.isIdentifier();
- if (isIdentifier && !(computed || parent.computed)) return name;
- if (computed && path.isMemberExpression() && path.get("object").isIdentifier({
- name: "Symbol"
- }) && !scope.hasBinding("Symbol",
- /* noGlobals */
- true)) {
- const sym = resolveKey(path.get("property"), path.node.computed);
- if (sym) return "Symbol." + sym;
- }
- if (!isIdentifier || scope.hasBinding(name,
- /* noGlobals */
- true)) {
- const {
- value
- } = path.evaluate();
- if (typeof value === "string") return value;
- }
- }
- function resolveSource(obj) {
- if (obj.isMemberExpression() && obj.get("property").isIdentifier({
- name: "prototype"
- })) {
- const id = resolveId(obj.get("object"));
- if (id) {
- return {
- id,
- placement: "prototype"
- };
- }
- return {
- id: null,
- placement: null
- };
- }
- const id = resolveId(obj);
- if (id) {
- return {
- id,
- placement: "static"
- };
- }
- const {
- value
- } = obj.evaluate();
- if (value !== undefined) {
- return {
- id: getType(value),
- placement: "prototype"
- };
- } else if (obj.isRegExpLiteral()) {
- return {
- id: "RegExp",
- placement: "prototype"
- };
- } else if (obj.isFunction()) {
- return {
- id: "Function",
- placement: "prototype"
- };
- }
- return {
- id: null,
- placement: null
- };
- }
- function getImportSource({
- node
- }) {
- if (node.specifiers.length === 0) return node.source.value;
- }
- function getRequireSource({
- node
- }) {
- if (!t$1.isExpressionStatement(node)) return;
- const {
- expression
- } = node;
- const isRequire = t$1.isCallExpression(expression) && t$1.isIdentifier(expression.callee) && expression.callee.name === "require" && expression.arguments.length === 1 && t$1.isStringLiteral(expression.arguments[0]);
- if (isRequire) return expression.arguments[0].value;
- }
- function hoist(node) {
- node._blockHoist = 3;
- return node;
- }
- function createUtilsGetter(cache) {
- return path => {
- const prog = path.findParent(p => p.isProgram());
- return {
- injectGlobalImport(url) {
- cache.storeAnonymous(prog, url, (isScript, source) => {
- return isScript ? template.statement.ast`require(${source})` : t$1.importDeclaration([], source);
- });
- },
- injectNamedImport(url, name, hint = name) {
- return cache.storeNamed(prog, url, name, (isScript, source, name) => {
- const id = prog.scope.generateUidIdentifier(hint);
- return {
- node: isScript ? hoist(template.statement.ast`
- var ${id} = require(${source}).${name}
- `) : t$1.importDeclaration([t$1.importSpecifier(id, name)], source),
- name: id.name
- };
- });
- },
- injectDefaultImport(url, hint = url) {
- return cache.storeNamed(prog, url, "default", (isScript, source) => {
- const id = prog.scope.generateUidIdentifier(hint);
- return {
- node: isScript ? hoist(template.statement.ast`var ${id} = require(${source})`) : t$1.importDeclaration([t$1.importDefaultSpecifier(id)], source),
- name: id.name
- };
- });
- }
- };
- };
- }
- const {
- types: t
- } = babel.default || babel;
- class ImportsCache {
- constructor(resolver) {
- this._imports = new WeakMap();
- this._anonymousImports = new WeakMap();
- this._lastImports = new WeakMap();
- this._resolver = resolver;
- }
- storeAnonymous(programPath, url, // eslint-disable-next-line no-undef
- getVal) {
- const key = this._normalizeKey(programPath, url);
- const imports = this._ensure(this._anonymousImports, programPath, Set);
- if (imports.has(key)) return;
- const node = getVal(programPath.node.sourceType === "script", t.stringLiteral(this._resolver(url)));
- imports.add(key);
- this._injectImport(programPath, node);
- }
- storeNamed(programPath, url, name, getVal) {
- const key = this._normalizeKey(programPath, url, name);
- const imports = this._ensure(this._imports, programPath, Map);
- if (!imports.has(key)) {
- const {
- node,
- name: id
- } = getVal(programPath.node.sourceType === "script", t.stringLiteral(this._resolver(url)), t.identifier(name));
- imports.set(key, id);
- this._injectImport(programPath, node);
- }
- return t.identifier(imports.get(key));
- }
- _injectImport(programPath, node) {
- let lastImport = this._lastImports.get(programPath);
- if (lastImport && lastImport.node && // Sometimes the AST is modified and the "last import"
- // we have has been replaced
- lastImport.parent === programPath.node && lastImport.container === programPath.node.body) {
- lastImport = lastImport.insertAfter(node);
- } else {
- lastImport = programPath.unshiftContainer("body", node);
- }
- lastImport = lastImport[lastImport.length - 1];
- this._lastImports.set(programPath, lastImport);
- /*
- let lastImport;
- programPath.get("body").forEach(path => {
- if (path.isImportDeclaration()) lastImport = path;
- if (
- path.isExpressionStatement() &&
- isRequireCall(path.get("expression"))
- ) {
- lastImport = path;
- }
- if (
- path.isVariableDeclaration() &&
- path.get("declarations").length === 1 &&
- (isRequireCall(path.get("declarations.0.init")) ||
- (path.get("declarations.0.init").isMemberExpression() &&
- isRequireCall(path.get("declarations.0.init.object"))))
- ) {
- lastImport = path;
- }
- });*/
- }
- _ensure(map, programPath, Collection) {
- let collection = map.get(programPath);
- if (!collection) {
- collection = new Collection();
- map.set(programPath, collection);
- }
- return collection;
- }
- _normalizeKey(programPath, url, name = "") {
- const {
- sourceType
- } = programPath.node; // If we rely on the imported binding (the "name" parameter), we also need to cache
- // based on the sourceType. This is because the module transforms change the names
- // of the import variables.
- return `${name && sourceType}::${url}::${name}`;
- }
- }
- const presetEnvSilentDebugHeader = "#__secret_key__@babel/preset-env__don't_log_debug_header_and_resolved_targets";
- function stringifyTargetsMultiline(targets) {
- return JSON.stringify(prettifyTargets(targets), null, 2);
- }
- function patternToRegExp(pattern) {
- if (pattern instanceof RegExp) return pattern;
- try {
- return new RegExp(`^${pattern}$`);
- } catch {
- return null;
- }
- }
- function buildUnusedError(label, unused) {
- if (!unused.length) return "";
- return ` - The following "${label}" patterns didn't match any polyfill:\n` + unused.map(original => ` ${String(original)}\n`).join("");
- }
- function buldDuplicatesError(duplicates) {
- if (!duplicates.size) return "";
- return ` - The following polyfills were matched both by "include" and "exclude" patterns:\n` + Array.from(duplicates, name => ` ${name}\n`).join("");
- }
- function validateIncludeExclude(provider, polyfills, includePatterns, excludePatterns) {
- let current;
- const filter = pattern => {
- const regexp = patternToRegExp(pattern);
- if (!regexp) return false;
- let matched = false;
- for (const polyfill of polyfills) {
- if (regexp.test(polyfill)) {
- matched = true;
- current.add(polyfill);
- }
- }
- return !matched;
- }; // prettier-ignore
- const include = current = new Set();
- const unusedInclude = Array.from(includePatterns).filter(filter); // prettier-ignore
- const exclude = current = new Set();
- const unusedExclude = Array.from(excludePatterns).filter(filter);
- const duplicates = intersection(include, exclude);
- if (duplicates.size > 0 || unusedInclude.length > 0 || unusedExclude.length > 0) {
- throw new Error(`Error while validating the "${provider}" provider options:\n` + buildUnusedError("include", unusedInclude) + buildUnusedError("exclude", unusedExclude) + buldDuplicatesError(duplicates));
- }
- return {
- include,
- exclude
- };
- }
- function applyMissingDependenciesDefaults(options, babelApi) {
- const {
- missingDependencies = {}
- } = options;
- if (missingDependencies === false) return false;
- const caller = babelApi.caller(caller => caller?.name);
- const {
- log = "deferred",
- inject = caller === "rollup-plugin-babel" ? "throw" : "import",
- all = false
- } = missingDependencies;
- return {
- log,
- inject,
- all
- };
- }
- var usage = (callProvider => {
- function property(object, key, placement, path) {
- return callProvider({
- kind: "property",
- object,
- key,
- placement
- }, path);
- }
- return {
- // Symbol(), new Promise
- ReferencedIdentifier(path) {
- const {
- node: {
- name
- },
- scope
- } = path;
- if (scope.getBindingIdentifier(name)) return;
- callProvider({
- kind: "global",
- name
- }, path);
- },
- MemberExpression(path) {
- const key = resolveKey(path.get("property"), path.node.computed);
- if (!key || key === "prototype") return;
- const object = path.get("object");
- const binding = object.scope.getBinding(object.node.name);
- if (binding && binding.path.isImportNamespaceSpecifier()) return;
- const source = resolveSource(object);
- return property(source.id, key, source.placement, path);
- },
- ObjectPattern(path) {
- const {
- parentPath,
- parent
- } = path;
- let obj; // const { keys, values } = Object
- if (parentPath.isVariableDeclarator()) {
- obj = parentPath.get("init"); // ({ keys, values } = Object)
- } else if (parentPath.isAssignmentExpression()) {
- obj = parentPath.get("right"); // !function ({ keys, values }) {...} (Object)
- // resolution does not work after properties transform :-(
- } else if (parentPath.isFunction()) {
- const grand = parentPath.parentPath;
- if (grand.isCallExpression() || grand.isNewExpression()) {
- if (grand.node.callee === parent) {
- obj = grand.get("arguments")[path.key];
- }
- }
- }
- let id = null;
- let placement = null;
- if (obj) ({
- id,
- placement
- } = resolveSource(obj));
- for (const prop of path.get("properties")) {
- if (prop.isObjectProperty()) {
- const key = resolveKey(prop.get("key"));
- if (key) property(id, key, placement, prop);
- }
- }
- },
- BinaryExpression(path) {
- if (path.node.operator !== "in") return;
- const source = resolveSource(path.get("right"));
- const key = resolveKey(path.get("left"), true);
- if (!key) return;
- callProvider({
- kind: "in",
- object: source.id,
- key,
- placement: source.placement
- }, path);
- }
- };
- });
- var entry = (callProvider => ({
- ImportDeclaration(path) {
- const source = getImportSource(path);
- if (!source) return;
- callProvider({
- kind: "import",
- source
- }, path);
- },
- Program(path) {
- path.get("body").forEach(bodyPath => {
- const source = getRequireSource(bodyPath);
- if (!source) return;
- callProvider({
- kind: "import",
- source
- }, bodyPath);
- });
- }
- }));
- function resolve(dirname, moduleName, absoluteImports) {
- if (absoluteImports === false) return moduleName;
- throw new Error(`"absoluteImports" is not supported in bundles prepared for the browser.`);
- } // eslint-disable-next-line no-unused-vars
- function has(basedir, name) {
- return true;
- } // eslint-disable-next-line no-unused-vars
- function logMissing(missingDeps) {} // eslint-disable-next-line no-unused-vars
- function laterLogMissing(missingDeps) {}
- const PossibleGlobalObjects = new Set(["global", "globalThis", "self", "window"]);
- function createMetaResolver(polyfills) {
- const {
- static: staticP,
- instance: instanceP,
- global: globalP
- } = polyfills;
- return meta => {
- if (meta.kind === "global" && globalP && has$1(globalP, meta.name)) {
- return {
- kind: "global",
- desc: globalP[meta.name],
- name: meta.name
- };
- }
- if (meta.kind === "property" || meta.kind === "in") {
- const {
- placement,
- object,
- key
- } = meta;
- if (object && placement === "static") {
- if (globalP && PossibleGlobalObjects.has(object) && has$1(globalP, key)) {
- return {
- kind: "global",
- desc: globalP[key],
- name: key
- };
- }
- if (staticP && has$1(staticP, object) && has$1(staticP[object], key)) {
- return {
- kind: "static",
- desc: staticP[object][key],
- name: `${object}$${key}`
- };
- }
- }
- if (instanceP && has$1(instanceP, key)) {
- return {
- kind: "instance",
- desc: instanceP[key],
- name: `${key}`
- };
- }
- }
- };
- }
- const getTargets = _getTargets.default || _getTargets;
- function resolveOptions(options, babelApi) {
- const {
- method,
- targets: targetsOption,
- ignoreBrowserslistConfig,
- configPath,
- debug,
- shouldInjectPolyfill,
- absoluteImports,
- ...providerOptions
- } = options;
- let methodName;
- if (method === "usage-global") methodName = "usageGlobal";else if (method === "entry-global") methodName = "entryGlobal";else if (method === "usage-pure") methodName = "usagePure";else if (typeof method !== "string") {
- throw new Error(".method must be a string");
- } else {
- throw new Error(`.method must be one of "entry-global", "usage-global"` + ` or "usage-pure" (received ${JSON.stringify(method)})`);
- }
- if (typeof shouldInjectPolyfill === "function") {
- if (options.include || options.exclude) {
- throw new Error(`.include and .exclude are not supported when using the` + ` .shouldInjectPolyfill function.`);
- }
- } else if (shouldInjectPolyfill != null) {
- throw new Error(`.shouldInjectPolyfill must be a function, or undefined` + ` (received ${JSON.stringify(shouldInjectPolyfill)})`);
- }
- if (absoluteImports != null && typeof absoluteImports !== "boolean" && typeof absoluteImports !== "string") {
- throw new Error(`.absoluteImports must be a boolean, a string, or undefined` + ` (received ${JSON.stringify(absoluteImports)})`);
- }
- let targets;
- if ( // If any browserslist-related option is specified, fallback to the old
- // behavior of not using the targets specified in the top-level options.
- targetsOption || configPath || ignoreBrowserslistConfig) {
- const targetsObj = typeof targetsOption === "string" || Array.isArray(targetsOption) ? {
- browsers: targetsOption
- } : targetsOption;
- targets = getTargets(targetsObj, {
- ignoreBrowserslistConfig,
- configPath
- });
- } else {
- targets = babelApi.targets();
- }
- return {
- method,
- methodName,
- targets,
- absoluteImports: absoluteImports ?? false,
- shouldInjectPolyfill,
- debug: !!debug,
- providerOptions: providerOptions
- };
- }
- function instantiateProvider(factory, options, missingDependencies, dirname, debugLog, babelApi) {
- const {
- method,
- methodName,
- targets,
- debug,
- shouldInjectPolyfill,
- providerOptions,
- absoluteImports
- } = resolveOptions(options, babelApi);
- const getUtils = createUtilsGetter(new ImportsCache(moduleName => resolve(dirname, moduleName, absoluteImports))); // eslint-disable-next-line prefer-const
- let include, exclude;
- let polyfillsSupport;
- let polyfillsNames;
- let filterPolyfills;
- const depsCache = new Map();
- const api = {
- babel: babelApi,
- getUtils,
- method: options.method,
- targets,
- createMetaResolver,
- shouldInjectPolyfill(name) {
- if (polyfillsNames === undefined) {
- throw new Error(`Internal error in the ${factory.name} provider: ` + `shouldInjectPolyfill() can't be called during initialization.`);
- }
- if (!polyfillsNames.has(name)) {
- console.warn(`Internal error in the ${provider.name} provider: ` + `unknown polyfill "${name}".`);
- }
- if (filterPolyfills && !filterPolyfills(name)) return false;
- let shouldInject = isRequired(name, targets, {
- compatData: polyfillsSupport,
- includes: include,
- excludes: exclude
- });
- if (shouldInjectPolyfill) {
- shouldInject = shouldInjectPolyfill(name, shouldInject);
- if (typeof shouldInject !== "boolean") {
- throw new Error(`.shouldInjectPolyfill must return a boolean.`);
- }
- }
- return shouldInject;
- },
- debug(name) {
- debugLog().found = true;
- if (!debug || !name) return;
- if (debugLog().polyfills.has(provider.name)) return;
- debugLog().polyfills.set(name, polyfillsSupport && name && polyfillsSupport[name]);
- },
- assertDependency(name, version = "*") {
- if (missingDependencies === false) return;
- if (absoluteImports) {
- // If absoluteImports is not false, we will try resolving
- // the dependency and throw if it's not possible. We can
- // skip the check here.
- return;
- }
- const dep = version === "*" ? name : `${name}@^${version}`;
- const found = missingDependencies.all ? false : mapGetOr(depsCache, `${name} :: ${dirname}`, () => has());
- if (!found) {
- debugLog().missingDeps.add(dep);
- }
- }
- };
- const provider = factory(api, providerOptions, dirname);
- if (typeof provider[methodName] !== "function") {
- throw new Error(`The "${provider.name || factory.name}" provider doesn't ` + `support the "${method}" polyfilling method.`);
- }
- if (Array.isArray(provider.polyfills)) {
- polyfillsNames = new Set(provider.polyfills);
- filterPolyfills = provider.filterPolyfills;
- } else if (provider.polyfills) {
- polyfillsNames = new Set(Object.keys(provider.polyfills));
- polyfillsSupport = provider.polyfills;
- filterPolyfills = provider.filterPolyfills;
- } else {
- polyfillsNames = new Set();
- }
- ({
- include,
- exclude
- } = validateIncludeExclude(provider.name || factory.name, polyfillsNames, providerOptions.include || [], providerOptions.exclude || []));
- return {
- debug,
- method,
- targets,
- provider,
- callProvider(payload, path) {
- const utils = getUtils(path); // $FlowIgnore
- provider[methodName](payload, utils, path);
- }
- };
- }
- function definePolyfillProvider(factory) {
- return declare((babelApi, options, dirname) => {
- babelApi.assertVersion(7);
- const {
- traverse
- } = babelApi;
- let debugLog;
- const missingDependencies = applyMissingDependenciesDefaults(options, babelApi);
- const {
- debug,
- method,
- targets,
- provider,
- callProvider
- } = instantiateProvider(factory, options, missingDependencies, dirname, () => debugLog, babelApi);
- const createVisitor = method === "entry-global" ? entry : usage;
- const visitor = provider.visitor ? traverse.visitors.merge([createVisitor(callProvider), provider.visitor]) : createVisitor(callProvider);
- if (debug && debug !== presetEnvSilentDebugHeader) {
- console.log(`${provider.name}: \`DEBUG\` option`);
- console.log(`\nUsing targets: ${stringifyTargetsMultiline(targets)}`);
- console.log(`\nUsing polyfills with \`${method}\` method:`);
- }
- return {
- name: "inject-polyfills",
- visitor,
- pre() {
- debugLog = {
- polyfills: new Map(),
- found: false,
- providers: new Set(),
- missingDeps: new Set()
- }; // $FlowIgnore - Flow doesn't support optional calls
- provider.pre?.apply(this, arguments);
- },
- post() {
- // $FlowIgnore - Flow doesn't support optional calls
- provider.post?.apply(this, arguments);
- if (missingDependencies !== false) {
- if (missingDependencies.log === "per-file") {
- logMissing(debugLog.missingDeps);
- } else {
- laterLogMissing(debugLog.missingDeps);
- }
- }
- if (!debug) return;
- if (this.filename) console.log(`\n[${this.filename}]`);
- if (debugLog.polyfills.size === 0) {
- console.log(method === "entry-global" ? debugLog.found ? `Based on your targets, the ${provider.name} polyfill did not add any polyfill.` : `The entry point for the ${provider.name} polyfill has not been found.` : `Based on your code and targets, the ${provider.name} polyfill did not add any polyfill.`);
- return;
- }
- if (method === "entry-global") {
- console.log(`The ${provider.name} polyfill entry has been replaced with ` + `the following polyfills:`);
- } else {
- console.log(`The ${provider.name} polyfill added the following polyfills:`);
- }
- for (const [name, support] of debugLog.polyfills) {
- if (support) {
- const filteredTargets = getInclusionReasons(name, targets, support);
- const formattedTargets = JSON.stringify(filteredTargets).replace(/,/g, ", ").replace(/^\{"/, '{ "').replace(/"\}$/, '" }');
- console.log(` ${name} ${formattedTargets}`);
- } else {
- console.log(` ${name}`);
- }
- }
- }
- };
- });
- }
- function mapGetOr(map, key, getDefault) {
- let val = map.get(key);
- if (val === undefined) {
- val = getDefault();
- map.set(key, val);
- }
- return val;
- }
- export default definePolyfillProvider;
- //# sourceMappingURL=index.browser.mjs.map
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