2023-12-18 13:12:25 +08:00
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"use strict";
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Object.defineProperty(exports, "__esModule", {
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value: true
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});
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exports.toComputedKey = toComputedKey;
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exports.ensureBlock = ensureBlock;
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exports.arrowFunctionToShadowed = arrowFunctionToShadowed;
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exports.unwrapFunctionEnvironment = unwrapFunctionEnvironment;
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exports.arrowFunctionToExpression = arrowFunctionToExpression;
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function t() {
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2024-01-16 21:26:16 +08:00
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var data = _interopRequireWildcard(require("@babel/types"));
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2023-12-18 13:12:25 +08:00
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2024-01-16 21:26:16 +08:00
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t = function t() {
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2023-12-18 13:12:25 +08:00
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return data;
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};
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return data;
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}
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function _helperFunctionName() {
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var data = _interopRequireDefault(require("@babel/helper-function-name"));
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2024-01-16 21:26:16 +08:00
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_helperFunctionName = function _helperFunctionName() {
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return data;
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};
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return data;
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}
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function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
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function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) { var desc = Object.defineProperty && Object.getOwnPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : {}; if (desc.get || desc.set) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } } newObj.default = obj; return newObj; } }
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function toComputedKey() {
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var node = this.node;
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var key;
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if (this.isMemberExpression()) {
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key = node.property;
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} else if (this.isProperty() || this.isMethod()) {
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key = node.key;
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} else {
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throw new ReferenceError("todo");
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}
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if (!node.computed) {
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if (t().isIdentifier(key)) key = t().stringLiteral(key.name);
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}
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return key;
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}
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function ensureBlock() {
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var body = this.get("body");
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var bodyNode = body.node;
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if (Array.isArray(body)) {
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throw new Error("Can't convert array path to a block statement");
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}
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if (!bodyNode) {
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throw new Error("Can't convert node without a body");
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}
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if (body.isBlockStatement()) {
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return bodyNode;
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}
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var statements = [];
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var stringPath = "body";
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var key;
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var listKey;
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if (body.isStatement()) {
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listKey = "body";
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key = 0;
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statements.push(body.node);
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} else {
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stringPath += ".body.0";
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if (this.isFunction()) {
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key = "argument";
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statements.push(t().returnStatement(body.node));
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} else {
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key = "expression";
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statements.push(t().expressionStatement(body.node));
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}
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}
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this.node.body = t().blockStatement(statements);
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var parentPath = this.get(stringPath);
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body.setup(parentPath, listKey ? parentPath.node[listKey] : parentPath.node, listKey, key);
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return this.node;
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}
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function arrowFunctionToShadowed() {
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if (!this.isArrowFunctionExpression()) return;
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this.arrowFunctionToExpression();
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}
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function unwrapFunctionEnvironment() {
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if (!this.isArrowFunctionExpression() && !this.isFunctionExpression() && !this.isFunctionDeclaration()) {
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throw this.buildCodeFrameError("Can only unwrap the environment of a function.");
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}
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hoistFunctionEnvironment(this);
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}
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function arrowFunctionToExpression(_temp) {
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var _ref = _temp === void 0 ? {} : _temp,
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_ref$allowInsertArrow = _ref.allowInsertArrow,
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allowInsertArrow = _ref$allowInsertArrow === void 0 ? true : _ref$allowInsertArrow,
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_ref$specCompliant = _ref.specCompliant,
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specCompliant = _ref$specCompliant === void 0 ? false : _ref$specCompliant;
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if (!this.isArrowFunctionExpression()) {
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throw this.buildCodeFrameError("Cannot convert non-arrow function to a function expression.");
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}
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var thisBinding = hoistFunctionEnvironment(this, specCompliant, allowInsertArrow);
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this.ensureBlock();
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this.node.type = "FunctionExpression";
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if (specCompliant) {
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var checkBinding = thisBinding ? null : this.parentPath.scope.generateUidIdentifier("arrowCheckId");
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if (checkBinding) {
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this.parentPath.scope.push({
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id: checkBinding,
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init: t().objectExpression([])
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});
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}
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this.get("body").unshiftContainer("body", t().expressionStatement(t().callExpression(this.hub.file.addHelper("newArrowCheck"), [t().thisExpression(), checkBinding ? t().identifier(checkBinding.name) : t().identifier(thisBinding)])));
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this.replaceWith(t().callExpression(t().memberExpression((0, _helperFunctionName().default)(this, true) || this.node, t().identifier("bind")), [checkBinding ? t().identifier(checkBinding.name) : t().thisExpression()]));
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}
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}
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function hoistFunctionEnvironment(fnPath, specCompliant, allowInsertArrow) {
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if (specCompliant === void 0) {
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specCompliant = false;
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}
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if (allowInsertArrow === void 0) {
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allowInsertArrow = true;
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}
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var thisEnvFn = fnPath.findParent(function (p) {
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return p.isFunction() && !p.isArrowFunctionExpression() || p.isProgram() || p.isClassProperty({
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static: false
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});
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});
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var inConstructor = thisEnvFn && thisEnvFn.node.kind === "constructor";
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if (thisEnvFn.isClassProperty()) {
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throw fnPath.buildCodeFrameError("Unable to transform arrow inside class property");
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}
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var _getScopeInformation = getScopeInformation(fnPath),
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thisPaths = _getScopeInformation.thisPaths,
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argumentsPaths = _getScopeInformation.argumentsPaths,
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newTargetPaths = _getScopeInformation.newTargetPaths,
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superProps = _getScopeInformation.superProps,
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superCalls = _getScopeInformation.superCalls;
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if (inConstructor && superCalls.length > 0) {
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if (!allowInsertArrow) {
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throw superCalls[0].buildCodeFrameError("Unable to handle nested super() usage in arrow");
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}
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var allSuperCalls = [];
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thisEnvFn.traverse({
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Function: function Function(child) {
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if (child.isArrowFunctionExpression()) return;
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child.skip();
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},
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ClassProperty: function ClassProperty(child) {
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if (child.node.static) return;
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child.skip();
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},
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CallExpression: function CallExpression(child) {
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if (!child.get("callee").isSuper()) return;
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allSuperCalls.push(child);
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}
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});
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var superBinding = getSuperBinding(thisEnvFn);
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allSuperCalls.forEach(function (superCall) {
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var callee = t().identifier(superBinding);
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callee.loc = superCall.node.callee.loc;
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superCall.get("callee").replaceWith(callee);
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});
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}
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var thisBinding;
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if (thisPaths.length > 0 || specCompliant) {
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thisBinding = getThisBinding(thisEnvFn, inConstructor);
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if (!specCompliant || inConstructor && hasSuperClass(thisEnvFn)) {
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thisPaths.forEach(function (thisChild) {
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var thisRef = thisChild.isJSX() ? t().jsxIdentifier(thisBinding) : t().identifier(thisBinding);
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thisRef.loc = thisChild.node.loc;
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thisChild.replaceWith(thisRef);
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});
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if (specCompliant) thisBinding = null;
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}
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}
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if (argumentsPaths.length > 0) {
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var argumentsBinding = getBinding(thisEnvFn, "arguments", function () {
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return t().identifier("arguments");
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});
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argumentsPaths.forEach(function (argumentsChild) {
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var argsRef = t().identifier(argumentsBinding);
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argsRef.loc = argumentsChild.node.loc;
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argumentsChild.replaceWith(argsRef);
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});
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}
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if (newTargetPaths.length > 0) {
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var newTargetBinding = getBinding(thisEnvFn, "newtarget", function () {
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return t().metaProperty(t().identifier("new"), t().identifier("target"));
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});
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newTargetPaths.forEach(function (targetChild) {
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var targetRef = t().identifier(newTargetBinding);
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targetRef.loc = targetChild.node.loc;
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targetChild.replaceWith(targetRef);
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});
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}
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if (superProps.length > 0) {
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if (!allowInsertArrow) {
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throw superProps[0].buildCodeFrameError("Unable to handle nested super.prop usage");
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}
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var flatSuperProps = superProps.reduce(function (acc, superProp) {
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return acc.concat(standardizeSuperProperty(superProp));
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}, []);
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flatSuperProps.forEach(function (superProp) {
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var key = superProp.node.computed ? "" : superProp.get("property").node.name;
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if (superProp.parentPath.isCallExpression({
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callee: superProp.node
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})) {
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var _superBinding = getSuperPropCallBinding(thisEnvFn, key);
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if (superProp.node.computed) {
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var prop = superProp.get("property").node;
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superProp.replaceWith(t().identifier(_superBinding));
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superProp.parentPath.node.arguments.unshift(prop);
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} else {
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superProp.replaceWith(t().identifier(_superBinding));
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}
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} else {
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var isAssignment = superProp.parentPath.isAssignmentExpression({
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left: superProp.node
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});
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var _superBinding2 = getSuperPropBinding(thisEnvFn, isAssignment, key);
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var args = [];
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if (superProp.node.computed) {
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args.push(superProp.get("property").node);
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}
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if (isAssignment) {
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var value = superProp.parentPath.node.right;
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args.push(value);
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superProp.parentPath.replaceWith(t().callExpression(t().identifier(_superBinding2), args));
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} else {
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superProp.replaceWith(t().callExpression(t().identifier(_superBinding2), args));
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}
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}
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});
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}
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return thisBinding;
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}
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function standardizeSuperProperty(superProp) {
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if (superProp.parentPath.isAssignmentExpression() && superProp.parentPath.node.operator !== "=") {
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var assignmentPath = superProp.parentPath;
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var op = assignmentPath.node.operator.slice(0, -1);
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var value = assignmentPath.node.right;
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assignmentPath.node.operator = "=";
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if (superProp.node.computed) {
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var tmp = superProp.scope.generateDeclaredUidIdentifier("tmp");
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assignmentPath.get("left").replaceWith(t().memberExpression(superProp.node.object, t().assignmentExpression("=", tmp, superProp.node.property), true));
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assignmentPath.get("right").replaceWith(t().binaryExpression(op, t().memberExpression(superProp.node.object, t().identifier(tmp.name), true), value));
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} else {
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assignmentPath.get("left").replaceWith(t().memberExpression(superProp.node.object, superProp.node.property));
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assignmentPath.get("right").replaceWith(t().binaryExpression(op, t().memberExpression(superProp.node.object, t().identifier(superProp.node.property.name)), value));
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}
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return [assignmentPath.get("left"), assignmentPath.get("right").get("left")];
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} else if (superProp.parentPath.isUpdateExpression()) {
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var updateExpr = superProp.parentPath;
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var _tmp = superProp.scope.generateDeclaredUidIdentifier("tmp");
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var computedKey = superProp.node.computed ? superProp.scope.generateDeclaredUidIdentifier("prop") : null;
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var parts = [t().assignmentExpression("=", _tmp, t().memberExpression(superProp.node.object, computedKey ? t().assignmentExpression("=", computedKey, superProp.node.property) : superProp.node.property, superProp.node.computed)), t().assignmentExpression("=", t().memberExpression(superProp.node.object, computedKey ? t().identifier(computedKey.name) : superProp.node.property, superProp.node.computed), t().binaryExpression("+", t().identifier(_tmp.name), t().numericLiteral(1)))];
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if (!superProp.parentPath.node.prefix) {
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2024-01-16 21:26:16 +08:00
|
|
|
parts.push(t().identifier(_tmp.name));
|
2023-12-18 13:12:25 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
updateExpr.replaceWith(t().sequenceExpression(parts));
|
2024-01-16 21:26:16 +08:00
|
|
|
var left = updateExpr.get("expressions.0.right");
|
|
|
|
var right = updateExpr.get("expressions.1.left");
|
2023-12-18 13:12:25 +08:00
|
|
|
return [left, right];
|
|
|
|
}
|
|
|
|
|
|
|
|
return [superProp];
|
|
|
|
}
|
|
|
|
|
|
|
|
function hasSuperClass(thisEnvFn) {
|
|
|
|
return thisEnvFn.isClassMethod() && !!thisEnvFn.parentPath.parentPath.node.superClass;
|
|
|
|
}
|
|
|
|
|
|
|
|
function getThisBinding(thisEnvFn, inConstructor) {
|
2024-01-16 21:26:16 +08:00
|
|
|
return getBinding(thisEnvFn, "this", function (thisBinding) {
|
2023-12-18 13:12:25 +08:00
|
|
|
if (!inConstructor || !hasSuperClass(thisEnvFn)) return t().thisExpression();
|
2024-01-16 21:26:16 +08:00
|
|
|
var supers = new WeakSet();
|
2023-12-18 13:12:25 +08:00
|
|
|
thisEnvFn.traverse({
|
2024-01-16 21:26:16 +08:00
|
|
|
Function: function Function(child) {
|
2023-12-18 13:12:25 +08:00
|
|
|
if (child.isArrowFunctionExpression()) return;
|
|
|
|
child.skip();
|
|
|
|
},
|
2024-01-16 21:26:16 +08:00
|
|
|
ClassProperty: function ClassProperty(child) {
|
|
|
|
if (child.node.static) return;
|
2023-12-18 13:12:25 +08:00
|
|
|
child.skip();
|
|
|
|
},
|
2024-01-16 21:26:16 +08:00
|
|
|
CallExpression: function CallExpression(child) {
|
2023-12-18 13:12:25 +08:00
|
|
|
if (!child.get("callee").isSuper()) return;
|
|
|
|
if (supers.has(child.node)) return;
|
|
|
|
supers.add(child.node);
|
2024-01-16 21:26:16 +08:00
|
|
|
child.replaceWith(t().assignmentExpression("=", t().identifier(thisBinding), child.node));
|
2023-12-18 13:12:25 +08:00
|
|
|
}
|
|
|
|
});
|
|
|
|
});
|
|
|
|
}
|
|
|
|
|
|
|
|
function getSuperBinding(thisEnvFn) {
|
2024-01-16 21:26:16 +08:00
|
|
|
return getBinding(thisEnvFn, "supercall", function () {
|
|
|
|
var argsBinding = thisEnvFn.scope.generateUidIdentifier("args");
|
2023-12-18 13:12:25 +08:00
|
|
|
return t().arrowFunctionExpression([t().restElement(argsBinding)], t().callExpression(t().super(), [t().spreadElement(t().identifier(argsBinding.name))]));
|
|
|
|
});
|
|
|
|
}
|
|
|
|
|
|
|
|
function getSuperPropCallBinding(thisEnvFn, propName) {
|
2024-01-16 21:26:16 +08:00
|
|
|
return getBinding(thisEnvFn, "superprop_call:" + (propName || ""), function () {
|
|
|
|
var argsBinding = thisEnvFn.scope.generateUidIdentifier("args");
|
|
|
|
var argsList = [t().restElement(argsBinding)];
|
|
|
|
var fnBody;
|
2023-12-18 13:12:25 +08:00
|
|
|
|
|
|
|
if (propName) {
|
|
|
|
fnBody = t().callExpression(t().memberExpression(t().super(), t().identifier(propName)), [t().spreadElement(t().identifier(argsBinding.name))]);
|
|
|
|
} else {
|
2024-01-16 21:26:16 +08:00
|
|
|
var method = thisEnvFn.scope.generateUidIdentifier("prop");
|
2023-12-18 13:12:25 +08:00
|
|
|
argsList.unshift(method);
|
|
|
|
fnBody = t().callExpression(t().memberExpression(t().super(), t().identifier(method.name), true), [t().spreadElement(t().identifier(argsBinding.name))]);
|
|
|
|
}
|
|
|
|
|
|
|
|
return t().arrowFunctionExpression(argsList, fnBody);
|
|
|
|
});
|
|
|
|
}
|
|
|
|
|
|
|
|
function getSuperPropBinding(thisEnvFn, isAssignment, propName) {
|
2024-01-16 21:26:16 +08:00
|
|
|
var op = isAssignment ? "set" : "get";
|
|
|
|
return getBinding(thisEnvFn, "superprop_" + op + ":" + (propName || ""), function () {
|
|
|
|
var argsList = [];
|
|
|
|
var fnBody;
|
2023-12-18 13:12:25 +08:00
|
|
|
|
|
|
|
if (propName) {
|
|
|
|
fnBody = t().memberExpression(t().super(), t().identifier(propName));
|
|
|
|
} else {
|
2024-01-16 21:26:16 +08:00
|
|
|
var method = thisEnvFn.scope.generateUidIdentifier("prop");
|
2023-12-18 13:12:25 +08:00
|
|
|
argsList.unshift(method);
|
|
|
|
fnBody = t().memberExpression(t().super(), t().identifier(method.name), true);
|
|
|
|
}
|
|
|
|
|
|
|
|
if (isAssignment) {
|
2024-01-16 21:26:16 +08:00
|
|
|
var valueIdent = thisEnvFn.scope.generateUidIdentifier("value");
|
2023-12-18 13:12:25 +08:00
|
|
|
argsList.push(valueIdent);
|
|
|
|
fnBody = t().assignmentExpression("=", fnBody, t().identifier(valueIdent.name));
|
|
|
|
}
|
|
|
|
|
|
|
|
return t().arrowFunctionExpression(argsList, fnBody);
|
|
|
|
});
|
|
|
|
}
|
|
|
|
|
|
|
|
function getBinding(thisEnvFn, key, init) {
|
2024-01-16 21:26:16 +08:00
|
|
|
var cacheKey = "binding:" + key;
|
|
|
|
var data = thisEnvFn.getData(cacheKey);
|
2023-12-18 13:12:25 +08:00
|
|
|
|
|
|
|
if (!data) {
|
2024-01-16 21:26:16 +08:00
|
|
|
var id = thisEnvFn.scope.generateUidIdentifier(key);
|
2023-12-18 13:12:25 +08:00
|
|
|
data = id.name;
|
|
|
|
thisEnvFn.setData(cacheKey, data);
|
|
|
|
thisEnvFn.scope.push({
|
|
|
|
id: id,
|
|
|
|
init: init(data)
|
|
|
|
});
|
|
|
|
}
|
|
|
|
|
|
|
|
return data;
|
|
|
|
}
|
|
|
|
|
|
|
|
function getScopeInformation(fnPath) {
|
2024-01-16 21:26:16 +08:00
|
|
|
var thisPaths = [];
|
|
|
|
var argumentsPaths = [];
|
|
|
|
var newTargetPaths = [];
|
|
|
|
var superProps = [];
|
|
|
|
var superCalls = [];
|
2023-12-18 13:12:25 +08:00
|
|
|
fnPath.traverse({
|
2024-01-16 21:26:16 +08:00
|
|
|
ClassProperty: function ClassProperty(child) {
|
|
|
|
if (child.node.static) return;
|
2023-12-18 13:12:25 +08:00
|
|
|
child.skip();
|
|
|
|
},
|
2024-01-16 21:26:16 +08:00
|
|
|
Function: function Function(child) {
|
2023-12-18 13:12:25 +08:00
|
|
|
if (child.isArrowFunctionExpression()) return;
|
|
|
|
child.skip();
|
|
|
|
},
|
2024-01-16 21:26:16 +08:00
|
|
|
ThisExpression: function ThisExpression(child) {
|
2023-12-18 13:12:25 +08:00
|
|
|
thisPaths.push(child);
|
|
|
|
},
|
2024-01-16 21:26:16 +08:00
|
|
|
JSXIdentifier: function JSXIdentifier(child) {
|
2023-12-18 13:12:25 +08:00
|
|
|
if (child.node.name !== "this") return;
|
|
|
|
|
|
|
|
if (!child.parentPath.isJSXMemberExpression({
|
|
|
|
object: child.node
|
|
|
|
}) && !child.parentPath.isJSXOpeningElement({
|
|
|
|
name: child.node
|
|
|
|
})) {
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
thisPaths.push(child);
|
|
|
|
},
|
2024-01-16 21:26:16 +08:00
|
|
|
CallExpression: function CallExpression(child) {
|
2023-12-18 13:12:25 +08:00
|
|
|
if (child.get("callee").isSuper()) superCalls.push(child);
|
|
|
|
},
|
2024-01-16 21:26:16 +08:00
|
|
|
MemberExpression: function MemberExpression(child) {
|
2023-12-18 13:12:25 +08:00
|
|
|
if (child.get("object").isSuper()) superProps.push(child);
|
|
|
|
},
|
2024-01-16 21:26:16 +08:00
|
|
|
ReferencedIdentifier: function ReferencedIdentifier(child) {
|
2023-12-18 13:12:25 +08:00
|
|
|
if (child.node.name !== "arguments") return;
|
|
|
|
argumentsPaths.push(child);
|
|
|
|
},
|
2024-01-16 21:26:16 +08:00
|
|
|
MetaProperty: function MetaProperty(child) {
|
2023-12-18 13:12:25 +08:00
|
|
|
if (!child.get("meta").isIdentifier({
|
|
|
|
name: "new"
|
|
|
|
})) return;
|
|
|
|
if (!child.get("property").isIdentifier({
|
|
|
|
name: "target"
|
|
|
|
})) return;
|
|
|
|
newTargetPaths.push(child);
|
|
|
|
}
|
|
|
|
});
|
|
|
|
return {
|
2024-01-16 21:26:16 +08:00
|
|
|
thisPaths: thisPaths,
|
|
|
|
argumentsPaths: argumentsPaths,
|
|
|
|
newTargetPaths: newTargetPaths,
|
|
|
|
superProps: superProps,
|
|
|
|
superCalls: superCalls
|
2023-12-18 13:12:25 +08:00
|
|
|
};
|
|
|
|
}
|