vue hello world项目
You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
 
 
 

865 lines
24 KiB

import { declare } from '@babel/helper-plugin-utils';
import _getTargets, { prettifyTargets, getInclusionReasons, isRequired } from '@babel/helper-compilation-targets';
import * as babel from '@babel/core';
import path from 'path';
import debounce from 'lodash.debounce';
import requireResolve from 'resolve';
import { createRequire } from 'module';
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 == null ? void 0 : 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);
});
}
}));
const nativeRequireResolve = parseFloat(process.versions.node) >= 8.9; // $FlowIgnore
const require = createRequire(import
/*::(_)*/
.meta.url); // eslint-disable-line
function resolve(dirname, moduleName, absoluteImports) {
if (absoluteImports === false) return moduleName;
let basedir = dirname;
if (typeof absoluteImports === "string") {
basedir = path.resolve(basedir, absoluteImports);
}
try {
if (nativeRequireResolve) {
return require.resolve(moduleName, {
paths: [basedir]
});
} else {
return requireResolve.sync(moduleName, {
basedir
});
}
} catch (err) {
if (err.code !== "MODULE_NOT_FOUND") throw err; // $FlowIgnore
throw Object.assign(new Error(`Failed to resolve "${moduleName}" relative to "${dirname}"`), {
code: "BABEL_POLYFILL_NOT_FOUND",
polyfill: moduleName,
dirname
});
}
}
function has(basedir, name) {
try {
if (nativeRequireResolve) {
require.resolve(name, {
paths: [basedir]
});
} else {
requireResolve.sync(name, {
basedir
});
}
return true;
} catch {
return false;
}
}
function logMissing(missingDeps) {
if (missingDeps.size === 0) return;
const deps = Array.from(missingDeps).sort().join(" ");
console.warn("\nSome polyfills have been added but are not present in your dependencies.\n" + "Please run one of the following commands:\n" + `\tnpm install --save ${deps}\n` + `\tyarn add ${deps}\n`);
process.exitCode = 1;
}
let allMissingDeps = new Set();
const laterLogMissingDependencies = debounce(() => {
logMissing(allMissingDeps);
allMissingDeps = new Set();
}, 100);
function laterLogMissing(missingDeps) {
if (missingDeps.size === 0) return;
missingDeps.forEach(name => allMissingDeps.add(name));
laterLogMissingDependencies();
}
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 != null ? 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} :: ${dirname}`, () => has(dirname, name));
if (!found) {
debugLog().missingDeps.add(dep);
}
}
};
const provider = factory(api, providerOptions, dirname);
if (typeof provider[methodName] !== "function") {
throw new Error(`The "${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() {
var _provider$pre;
debugLog = {
polyfills: new Map(),
found: false,
providers: new Set(),
missingDeps: new Set()
}; // $FlowIgnore - Flow doesn't support optional calls
(_provider$pre = provider.pre) == null ? void 0 : _provider$pre.apply(this, arguments);
},
post() {
var _provider$post;
// $FlowIgnore - Flow doesn't support optional calls
(_provider$post = provider.post) == null ? void 0 : _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.node.mjs.map