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- "use strict";
-
- Object.defineProperty(exports, "__esModule", {
- value: true
- });
- exports.default = _default;
-
- var _helperGetFunctionArity = _interopRequireDefault(require("@babel/helper-get-function-arity"));
-
- var _template = _interopRequireDefault(require("@babel/template"));
-
- var t = _interopRequireWildcard(require("@babel/types"));
-
- function _getRequireWildcardCache() { if (typeof WeakMap !== "function") return null; var cache = new WeakMap(); _getRequireWildcardCache = function () { return cache; }; return cache; }
-
- function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } if (obj === null || typeof obj !== "object" && typeof obj !== "function") { return { default: obj }; } var cache = _getRequireWildcardCache(); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj.default = obj; if (cache) { cache.set(obj, newObj); } return newObj; }
-
- function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
- const buildPropertyMethodAssignmentWrapper = (0, _template.default)(`
- (function (FUNCTION_KEY) {
- function FUNCTION_ID() {
- return FUNCTION_KEY.apply(this, arguments);
- }
-
- FUNCTION_ID.toString = function () {
- return FUNCTION_KEY.toString();
- }
-
- return FUNCTION_ID;
- })(FUNCTION)
- `);
- const buildGeneratorPropertyMethodAssignmentWrapper = (0, _template.default)(`
- (function (FUNCTION_KEY) {
- function* FUNCTION_ID() {
- return yield* FUNCTION_KEY.apply(this, arguments);
- }
-
- FUNCTION_ID.toString = function () {
- return FUNCTION_KEY.toString();
- };
-
- return FUNCTION_ID;
- })(FUNCTION)
- `);
- const visitor = {
- "ReferencedIdentifier|BindingIdentifier"(path, state) {
- if (path.node.name !== state.name) return;
- const localDeclar = path.scope.getBindingIdentifier(state.name);
- if (localDeclar !== state.outerDeclar) return;
- state.selfReference = true;
- path.stop();
- }
-
- };
-
- function getNameFromLiteralId(id) {
- if (t.isNullLiteral(id)) {
- return "null";
- }
-
- if (t.isRegExpLiteral(id)) {
- return `_${id.pattern}_${id.flags}`;
- }
-
- if (t.isTemplateLiteral(id)) {
- return id.quasis.map(quasi => quasi.value.raw).join("");
- }
-
- if (id.value !== undefined) {
- return id.value + "";
- }
-
- return "";
- }
-
- function wrap(state, method, id, scope) {
- if (state.selfReference) {
- if (scope.hasBinding(id.name) && !scope.hasGlobal(id.name)) {
- scope.rename(id.name);
- } else {
- if (!t.isFunction(method)) return;
- let build = buildPropertyMethodAssignmentWrapper;
-
- if (method.generator) {
- build = buildGeneratorPropertyMethodAssignmentWrapper;
- }
-
- const template = build({
- FUNCTION: method,
- FUNCTION_ID: id,
- FUNCTION_KEY: scope.generateUidIdentifier(id.name)
- }).expression;
- const params = template.callee.body.body[0].params;
-
- for (let i = 0, len = (0, _helperGetFunctionArity.default)(method); i < len; i++) {
- params.push(scope.generateUidIdentifier("x"));
- }
-
- return template;
- }
- }
-
- method.id = id;
- scope.getProgramParent().references[id.name] = true;
- }
-
- function visit(node, name, scope) {
- const state = {
- selfAssignment: false,
- selfReference: false,
- outerDeclar: scope.getBindingIdentifier(name),
- references: [],
- name: name
- };
- const binding = scope.getOwnBinding(name);
-
- if (binding) {
- if (binding.kind === "param") {
- state.selfReference = true;
- } else {}
- } else if (state.outerDeclar || scope.hasGlobal(name)) {
- scope.traverse(node, visitor, state);
- }
-
- return state;
- }
-
- function _default({
- node,
- parent,
- scope,
- id
- }, localBinding = false) {
- if (node.id) return;
-
- if ((t.isObjectProperty(parent) || t.isObjectMethod(parent, {
- kind: "method"
- })) && (!parent.computed || t.isLiteral(parent.key))) {
- id = parent.key;
- } else if (t.isVariableDeclarator(parent)) {
- id = parent.id;
-
- if (t.isIdentifier(id) && !localBinding) {
- const binding = scope.parent.getBinding(id.name);
-
- if (binding && binding.constant && scope.getBinding(id.name) === binding) {
- node.id = t.cloneNode(id);
- node.id[t.NOT_LOCAL_BINDING] = true;
- return;
- }
- }
- } else if (t.isAssignmentExpression(parent)) {
- id = parent.left;
- } else if (!id) {
- return;
- }
-
- let name;
-
- if (id && t.isLiteral(id)) {
- name = getNameFromLiteralId(id);
- } else if (id && t.isIdentifier(id)) {
- name = id.name;
- }
-
- if (name === undefined) {
- return;
- }
-
- name = t.toBindingIdentifierName(name);
- id = t.identifier(name);
- id[t.NOT_LOCAL_BINDING] = true;
- const state = visit(node, name, scope);
- return wrap(state, node, id, scope) || node;
- }
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