136 lines
		
	
	
		
			5.6 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
			
		
		
	
	
			136 lines
		
	
	
		
			5.6 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
"use strict";
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exports.__esModule = true;
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exports.default = void 0;
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var _corejs2BuiltIns = _interopRequireDefault(require("@babel/compat-data/corejs2-built-ins"));
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var _builtInDefinitions = require("./built-in-definitions");
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var _addPlatformSpecificPolyfills = _interopRequireDefault(require("./add-platform-specific-polyfills"));
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var _helpers = require("./helpers");
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var _helperDefinePolyfillProvider = _interopRequireDefault(require("@babel/helper-define-polyfill-provider"));
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var _babel = _interopRequireWildcard(require("@babel/core"));
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function _interopRequireWildcard(e, t) { if ("function" == typeof WeakMap) var r = new WeakMap(), n = new WeakMap(); return (_interopRequireWildcard = function (e, t) { if (!t && e && e.__esModule) return e; var o, i, f = { __proto__: null, default: e }; if (null === e || "object" != typeof e && "function" != typeof e) return f; if (o = t ? n : r) { if (o.has(e)) return o.get(e); o.set(e, f); } for (const t in e) "default" !== t && {}.hasOwnProperty.call(e, t) && ((i = (o = Object.defineProperty) && Object.getOwnPropertyDescriptor(e, t)) && (i.get || i.set) ? o(f, t, i) : f[t] = e[t]); return f; })(e, t); }
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function _interopRequireDefault(e) { return e && e.__esModule ? e : { default: e }; }
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const {
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  types: t
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} = _babel.default || _babel;
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const BABEL_RUNTIME = "@babel/runtime-corejs2";
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const presetEnvCompat = "#__secret_key__@babel/preset-env__compatibility";
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const runtimeCompat = "#__secret_key__@babel/runtime__compatibility";
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const has = Function.call.bind(Object.hasOwnProperty);
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var _default = exports.default = (0, _helperDefinePolyfillProvider.default)(function (api, {
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  [presetEnvCompat]: {
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    entryInjectRegenerator = false,
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    noRuntimeName = false
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  } = {},
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  [runtimeCompat]: {
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    useBabelRuntime = false,
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    runtimeVersion = "",
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    ext = ".js"
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  } = {}
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}) {
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  const resolve = api.createMetaResolver({
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    global: _builtInDefinitions.BuiltIns,
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    static: _builtInDefinitions.StaticProperties,
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    instance: _builtInDefinitions.InstanceProperties
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  });
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  const {
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    debug,
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    shouldInjectPolyfill,
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    method
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  } = api;
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  const polyfills = (0, _addPlatformSpecificPolyfills.default)(api.targets, method, _corejs2BuiltIns.default);
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  const coreJSBase = useBabelRuntime ? `${BABEL_RUNTIME}/core-js` : method === "usage-pure" ? "core-js/library/fn" : "core-js/modules";
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  function inject(name, utils) {
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    if (typeof name === "string") {
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      // Some polyfills aren't always available, for example
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      // web.dom.iterable when targeting node
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      if (has(polyfills, name) && shouldInjectPolyfill(name)) {
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        debug(name);
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        utils.injectGlobalImport(`${coreJSBase}/${name}.js`);
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      }
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      return;
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    }
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    name.forEach(name => inject(name, utils));
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  }
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  function maybeInjectPure(desc, hint, utils) {
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    let {
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      pure,
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      meta,
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      name
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    } = desc;
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    if (!pure || !shouldInjectPolyfill(name)) return;
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    if (runtimeVersion && meta && meta.minRuntimeVersion && !(0, _helpers.hasMinVersion)(meta && meta.minRuntimeVersion, runtimeVersion)) {
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      return;
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    }
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    // Unfortunately core-js and @babel/runtime-corejs2 don't have the same
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    // directory structure, so we need to special case this.
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    if (useBabelRuntime && pure === "symbol/index") pure = "symbol";
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    return utils.injectDefaultImport(`${coreJSBase}/${pure}${ext}`, hint);
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  }
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  return {
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    name: "corejs2",
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    runtimeName: noRuntimeName ? null : BABEL_RUNTIME,
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    polyfills,
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    entryGlobal(meta, utils, path) {
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      if (meta.kind === "import" && meta.source === "core-js") {
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        debug(null);
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        inject(Object.keys(polyfills), utils);
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        if (entryInjectRegenerator) {
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          utils.injectGlobalImport("regenerator-runtime/runtime.js");
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        }
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        path.remove();
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      }
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    },
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    usageGlobal(meta, utils) {
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      const resolved = resolve(meta);
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      if (!resolved) return;
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      let deps = resolved.desc.global;
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      if (resolved.kind !== "global" && "object" in meta && meta.object && meta.placement === "prototype") {
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        const low = meta.object.toLowerCase();
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        deps = deps.filter(m => m.includes(low));
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      }
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      inject(deps, utils);
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    },
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    usagePure(meta, utils, path) {
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      if (meta.kind === "in") {
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        if (meta.key === "Symbol.iterator") {
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          path.replaceWith(t.callExpression(utils.injectDefaultImport(`${coreJSBase}/is-iterable${ext}`, "isIterable"), [path.node.right] // meta.kind === "in" narrows this
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          ));
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        }
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        return;
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      }
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      if (path.parentPath.isUnaryExpression({
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        operator: "delete"
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      })) return;
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      if (meta.kind === "property") {
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        // We can't compile destructuring.
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        if (!path.isMemberExpression()) return;
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        if (!path.isReferenced()) return;
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        if (meta.key === "Symbol.iterator" && shouldInjectPolyfill("es6.symbol") && path.parentPath.isCallExpression({
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          callee: path.node
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        }) && path.parentPath.node.arguments.length === 0) {
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          path.parentPath.replaceWith(t.callExpression(utils.injectDefaultImport(`${coreJSBase}/get-iterator${ext}`, "getIterator"), [path.node.object]));
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          path.skip();
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          return;
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        }
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      }
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      const resolved = resolve(meta);
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      if (!resolved) return;
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      const id = maybeInjectPure(resolved.desc, resolved.name, utils);
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      if (id) path.replaceWith(id);
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    },
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    visitor: method === "usage-global" && {
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      // yield*
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      YieldExpression(path) {
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        if (path.node.delegate) {
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          inject("web.dom.iterable", api.getUtils(path));
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        }
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      },
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      // for-of, [a, b] = c
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      "ForOfStatement|ArrayPattern"(path) {
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        _builtInDefinitions.CommonIterators.forEach(name => inject(name, api.getUtils(path)));
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      }
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    }
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  };
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}); |