| 1 | "use strict";
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| 2 |
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| 3 | Object.defineProperty(exports, "__esModule", {
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| 4 | value: true
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| 5 | });
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| 6 | exports.default = transformClass;
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| 7 | var _helperReplaceSupers = require("@babel/helper-replace-supers");
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| 8 | var _core = require("@babel/core");
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| 9 | var _traverse = require("@babel/traverse");
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| 10 | var _helperAnnotateAsPure = require("@babel/helper-annotate-as-pure");
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| 11 | var _inlineCallSuperHelpers = require("./inline-callSuper-helpers.js");
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| 12 | function buildConstructor(classRef, constructorBody, node) {
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| 13 | const func = _core.types.functionDeclaration(_core.types.cloneNode(classRef), [], constructorBody);
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| 14 | _core.types.inherits(func, node);
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| 15 | return func;
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| 16 | }
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| 17 | function transformClass(path, file, builtinClasses, isLoose, assumptions, supportUnicodeId) {
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| 18 | const classState = {
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| 19 | parent: undefined,
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| 20 | scope: undefined,
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| 21 | node: undefined,
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| 22 | path: undefined,
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| 23 | file: undefined,
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| 24 | classId: undefined,
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| 25 | classRef: undefined,
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| 26 | superName: null,
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| 27 | superReturns: [],
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| 28 | isDerived: false,
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| 29 | extendsNative: false,
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| 30 | construct: undefined,
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| 31 | constructorBody: undefined,
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| 32 | userConstructor: undefined,
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| 33 | userConstructorPath: undefined,
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| 34 | hasConstructor: false,
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| 35 | body: [],
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| 36 | superThises: [],
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| 37 | pushedInherits: false,
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| 38 | pushedCreateClass: false,
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| 39 | protoAlias: null,
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| 40 | isLoose: false,
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| 41 | dynamicKeys: new Map(),
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| 42 | methods: {
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| 43 | instance: {
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| 44 | hasComputed: false,
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| 45 | list: [],
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| 46 | map: new Map()
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| 47 | },
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| 48 | static: {
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| 49 | hasComputed: false,
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| 50 | list: [],
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| 51 | map: new Map()
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| 52 | }
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| 53 | }
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| 54 | };
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| 55 | const setState = newState => {
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| 56 | Object.assign(classState, newState);
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| 57 | };
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| 58 | const findThisesVisitor = _traverse.visitors.environmentVisitor({
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| 59 | ThisExpression(path) {
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| 60 | classState.superThises.push(path);
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| 61 | }
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| 62 | });
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| 63 | function createClassHelper(args) {
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| 64 | return _core.types.callExpression(classState.file.addHelper("createClass"), args);
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| 65 | }
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| 66 | function maybeCreateConstructor() {
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| 67 | const classBodyPath = classState.path.get("body");
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| 68 | for (const path of classBodyPath.get("body")) {
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| 69 | if (path.isClassMethod({
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| 70 | kind: "constructor"
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| 71 | })) return;
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| 72 | }
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| 73 | let params, body;
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| 74 | if (classState.isDerived) {
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| 75 | const constructor = _core.template.expression.ast`
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| 76 | (function () {
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| 77 | super(...arguments);
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| 78 | })
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| 79 | `;
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| 80 | params = constructor.params;
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| 81 | body = constructor.body;
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| 82 | } else {
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| 83 | params = [];
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| 84 | body = _core.types.blockStatement([]);
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| 85 | }
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| 86 | classBodyPath.unshiftContainer("body", _core.types.classMethod("constructor", _core.types.identifier("constructor"), params, body));
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| 87 | }
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| 88 | function buildBody() {
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| 89 | maybeCreateConstructor();
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| 90 | pushBody();
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| 91 | verifyConstructor();
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| 92 | if (classState.userConstructor) {
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| 93 | const {
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| 94 | constructorBody,
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| 95 | userConstructor,
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| 96 | construct
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| 97 | } = classState;
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| 98 | constructorBody.body.push(...userConstructor.body.body);
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| 99 | _core.types.inherits(construct, userConstructor);
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| 100 | _core.types.inherits(constructorBody, userConstructor.body);
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| 101 | }
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| 102 | pushDescriptors();
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| 103 | }
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| 104 | function pushBody() {
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| 105 | const classBodyPaths = classState.path.get("body.body");
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| 106 | for (const path of classBodyPaths) {
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| 107 | const node = path.node;
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| 108 | if (path.isClassProperty() || path.isClassPrivateProperty()) {
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| 109 | throw path.buildCodeFrameError("Missing class properties transform.");
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| 110 | }
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| 111 | if (node.decorators) {
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| 112 | throw path.buildCodeFrameError("Method has decorators, put the decorator plugin before the classes one.");
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| 113 | }
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| 114 | if (_core.types.isClassMethod(node)) {
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| 115 | const isConstructor = node.kind === "constructor";
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| 116 | const replaceSupers = new _helperReplaceSupers.default({
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| 117 | methodPath: path,
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| 118 | objectRef: classState.classRef,
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| 119 | superRef: classState.superName,
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| 120 | constantSuper: assumptions.constantSuper,
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| 121 | file: classState.file,
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| 122 | refToPreserve: classState.classRef
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| 123 | });
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| 124 | replaceSupers.replace();
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| 125 | const superReturns = [];
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| 126 | path.traverse(_traverse.visitors.environmentVisitor({
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| 127 | ReturnStatement(path) {
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| 128 | if (!path.getFunctionParent().isArrowFunctionExpression()) {
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| 129 | superReturns.push(path);
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| 130 | }
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| 131 | }
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| 132 | }));
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| 133 | if (isConstructor) {
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| 134 | pushConstructor(superReturns, node, path);
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| 135 | } else {
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| 136 | {
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| 137 | var _path$ensureFunctionN;
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| 138 | (_path$ensureFunctionN = path.ensureFunctionName) != null ? _path$ensureFunctionN : path.ensureFunctionName = require("@babel/traverse").NodePath.prototype.ensureFunctionName;
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| 139 | }
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| 140 | path.ensureFunctionName(supportUnicodeId);
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| 141 | let wrapped;
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| 142 | if (node !== path.node) {
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| 143 | wrapped = path.node;
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| 144 | path.replaceWith(node);
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| 145 | }
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| 146 | pushMethod(node, wrapped);
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| 147 | }
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| 148 | }
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| 149 | }
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| 150 | }
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| 151 | function pushDescriptors() {
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| 152 | pushInheritsToBody();
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| 153 | const {
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| 154 | body
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| 155 | } = classState;
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| 156 | const props = {
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| 157 | instance: null,
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| 158 | static: null
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| 159 | };
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| 160 | for (const placement of ["static", "instance"]) {
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| 161 | if (classState.methods[placement].list.length) {
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| 162 | props[placement] = classState.methods[placement].list.map(desc => {
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| 163 | const obj = _core.types.objectExpression([_core.types.objectProperty(_core.types.identifier("key"), desc.key)]);
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| 164 | for (const kind of ["get", "set", "value"]) {
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| 165 | if (desc[kind] != null) {
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| 166 | obj.properties.push(_core.types.objectProperty(_core.types.identifier(kind), desc[kind]));
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| 167 | }
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| 168 | }
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| 169 | return obj;
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| 170 | });
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| 171 | }
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| 172 | }
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| 173 | if (props.instance || props.static) {
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| 174 | let args = [_core.types.cloneNode(classState.classRef), props.instance ? _core.types.arrayExpression(props.instance) : _core.types.nullLiteral(), props.static ? _core.types.arrayExpression(props.static) : _core.types.nullLiteral()];
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| 175 | let lastNonNullIndex = 0;
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| 176 | for (let i = 0; i < args.length; i++) {
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| 177 | if (!_core.types.isNullLiteral(args[i])) lastNonNullIndex = i;
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| 178 | }
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| 179 | args = args.slice(0, lastNonNullIndex + 1);
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| 180 | body.push(_core.types.returnStatement(createClassHelper(args)));
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| 181 | classState.pushedCreateClass = true;
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| 182 | }
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| 183 | }
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| 184 | function wrapSuperCall(bareSuper, superRef, thisRef, body) {
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| 185 | const bareSuperNode = bareSuper.node;
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| 186 | let call;
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| 187 | if (assumptions.superIsCallableConstructor) {
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| 188 | bareSuperNode.arguments.unshift(_core.types.thisExpression());
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| 189 | if (bareSuperNode.arguments.length === 2 && _core.types.isSpreadElement(bareSuperNode.arguments[1]) && _core.types.isIdentifier(bareSuperNode.arguments[1].argument, {
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| 190 | name: "arguments"
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| 191 | })) {
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| 192 | bareSuperNode.arguments[1] = bareSuperNode.arguments[1].argument;
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| 193 | bareSuperNode.callee = _core.types.memberExpression(_core.types.cloneNode(superRef), _core.types.identifier("apply"));
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| 194 | } else {
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| 195 | bareSuperNode.callee = _core.types.memberExpression(_core.types.cloneNode(superRef), _core.types.identifier("call"));
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| 196 | }
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| 197 | call = _core.types.logicalExpression("||", bareSuperNode, _core.types.thisExpression());
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| 198 | } else {
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| 199 | var _bareSuperNode$argume;
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| 200 | const args = [_core.types.thisExpression(), _core.types.cloneNode(classState.classRef)];
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| 201 | if ((_bareSuperNode$argume = bareSuperNode.arguments) != null && _bareSuperNode$argume.length) {
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| 202 | const bareSuperNodeArguments = bareSuperNode.arguments;
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| 203 | if (bareSuperNodeArguments.length === 1 && _core.types.isSpreadElement(bareSuperNodeArguments[0]) && _core.types.isIdentifier(bareSuperNodeArguments[0].argument, {
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| 204 | name: "arguments"
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| 205 | })) {
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| 206 | args.push(bareSuperNodeArguments[0].argument);
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| 207 | } else {
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| 208 | args.push(_core.types.arrayExpression(bareSuperNodeArguments));
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| 209 | }
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| 210 | }
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| 211 | call = _core.types.callExpression((0, _inlineCallSuperHelpers.default)(classState.file), args);
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| 212 | }
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| 213 | if (bareSuper.parentPath.isExpressionStatement() && bareSuper.parentPath.container === body.node.body && body.node.body.length - 1 === bareSuper.parentPath.key) {
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| 214 | if (classState.superThises.length) {
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| 215 | call = _core.types.assignmentExpression("=", thisRef(), call);
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| 216 | }
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| 217 | bareSuper.parentPath.replaceWith(_core.types.returnStatement(call));
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| 218 | } else {
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| 219 | bareSuper.replaceWith(_core.types.assignmentExpression("=", thisRef(), call));
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| 220 | }
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| 221 | }
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| 222 | function verifyConstructor() {
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| 223 | if (!classState.isDerived) return;
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| 224 | const path = classState.userConstructorPath;
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| 225 | const body = path.get("body");
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| 226 | const constructorBody = path.get("body");
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| 227 | let maxGuaranteedSuperBeforeIndex = constructorBody.node.body.length;
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| 228 | path.traverse(findThisesVisitor);
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| 229 | let thisRef = function () {
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| 230 | const ref = path.scope.generateDeclaredUidIdentifier("this");
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| 231 | maxGuaranteedSuperBeforeIndex++;
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| 232 | thisRef = () => _core.types.cloneNode(ref);
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| 233 | return ref;
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| 234 | };
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| 235 | const buildAssertThisInitialized = function () {
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| 236 | return _core.types.callExpression(classState.file.addHelper("assertThisInitialized"), [thisRef()]);
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| 237 | };
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| 238 | const bareSupers = [];
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| 239 | path.traverse(_traverse.visitors.environmentVisitor({
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| 240 | Super(path) {
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| 241 | const {
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| 242 | node,
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| 243 | parentPath
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| 244 | } = path;
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| 245 | if (parentPath.isCallExpression({
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| 246 | callee: node
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| 247 | })) {
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| 248 | bareSupers.unshift(parentPath);
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| 249 | }
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| 250 | }
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| 251 | }));
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| 252 | for (const bareSuper of bareSupers) {
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| 253 | wrapSuperCall(bareSuper, classState.superName, thisRef, body);
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| 254 | if (maxGuaranteedSuperBeforeIndex >= 0) {
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| 255 | let lastParentPath;
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| 256 | bareSuper.find(function (parentPath) {
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| 257 | if (parentPath === constructorBody) {
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| 258 | maxGuaranteedSuperBeforeIndex = Math.min(maxGuaranteedSuperBeforeIndex, lastParentPath.key);
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| 259 | return true;
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| 260 | }
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| 261 | const {
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| 262 | type
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| 263 | } = parentPath;
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| 264 | switch (type) {
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| 265 | case "ExpressionStatement":
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| 266 | case "SequenceExpression":
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| 267 | case "AssignmentExpression":
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| 268 | case "BinaryExpression":
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| 269 | case "MemberExpression":
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| 270 | case "CallExpression":
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| 271 | case "NewExpression":
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| 272 | case "VariableDeclarator":
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| 273 | case "VariableDeclaration":
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| 274 | case "BlockStatement":
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| 275 | case "ArrayExpression":
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| 276 | case "ObjectExpression":
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| 277 | case "ObjectProperty":
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| 278 | case "TemplateLiteral":
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| 279 | lastParentPath = parentPath;
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| 280 | return false;
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| 281 | default:
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| 282 | if (type === "LogicalExpression" && parentPath.node.left === lastParentPath.node || parentPath.isConditional() && parentPath.node.test === lastParentPath.node || type === "OptionalCallExpression" && parentPath.node.callee === lastParentPath.node || type === "OptionalMemberExpression" && parentPath.node.object === lastParentPath.node) {
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| 283 | lastParentPath = parentPath;
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| 284 | return false;
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| 285 | }
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| 286 | }
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| 287 | maxGuaranteedSuperBeforeIndex = -1;
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| 288 | return true;
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| 289 | });
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| 290 | }
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| 291 | }
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| 292 | const guaranteedCalls = new Set();
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| 293 | for (const thisPath of classState.superThises) {
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| 294 | const {
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| 295 | node,
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| 296 | parentPath
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| 297 | } = thisPath;
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| 298 | if (parentPath.isMemberExpression({
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| 299 | object: node
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| 300 | })) {
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| 301 | thisPath.replaceWith(thisRef());
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| 302 | continue;
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| 303 | }
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| 304 | let thisIndex;
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| 305 | thisPath.find(function (parentPath) {
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| 306 | if (parentPath.parentPath === constructorBody) {
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| 307 | thisIndex = parentPath.key;
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| 308 | return true;
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| 309 | }
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| 310 | });
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| 311 | let exprPath = thisPath.parentPath.isSequenceExpression() ? thisPath.parentPath : thisPath;
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| 312 | if (exprPath.listKey === "arguments" && (exprPath.parentPath.isCallExpression() || exprPath.parentPath.isOptionalCallExpression())) {
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| 313 | exprPath = exprPath.parentPath;
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| 314 | } else {
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| 315 | exprPath = null;
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| 316 | }
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| 317 | if (maxGuaranteedSuperBeforeIndex !== -1 && thisIndex > maxGuaranteedSuperBeforeIndex || guaranteedCalls.has(exprPath)) {
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| 318 | thisPath.replaceWith(thisRef());
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| 319 | } else {
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| 320 | if (exprPath) {
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| 321 | guaranteedCalls.add(exprPath);
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| 322 | }
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| 323 | thisPath.replaceWith(buildAssertThisInitialized());
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| 324 | }
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| 325 | }
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| 326 | let wrapReturn;
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| 327 | if (classState.isLoose) {
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| 328 | wrapReturn = returnArg => {
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| 329 | const thisExpr = buildAssertThisInitialized();
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| 330 | return returnArg ? _core.types.logicalExpression("||", returnArg, thisExpr) : thisExpr;
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| 331 | };
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| 332 | } else {
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| 333 | wrapReturn = returnArg => {
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| 334 | const returnParams = [thisRef()];
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| 335 | if (returnArg != null) {
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| 336 | returnParams.push(returnArg);
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| 337 | }
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| 338 | return _core.types.callExpression(classState.file.addHelper("possibleConstructorReturn"), returnParams);
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| 339 | };
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| 340 | }
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| 341 | const bodyPaths = body.get("body");
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| 342 | const guaranteedSuperBeforeFinish = maxGuaranteedSuperBeforeIndex !== -1 && maxGuaranteedSuperBeforeIndex < bodyPaths.length;
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| 343 | if (!bodyPaths.length || !bodyPaths.pop().isReturnStatement()) {
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| 344 | body.pushContainer("body", _core.types.returnStatement(guaranteedSuperBeforeFinish ? thisRef() : buildAssertThisInitialized()));
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| 345 | }
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| 346 | for (const returnPath of classState.superReturns) {
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| 347 | returnPath.get("argument").replaceWith(wrapReturn(returnPath.node.argument));
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| 348 | }
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| 349 | }
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| 350 | function pushMethod(node, wrapped) {
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| 351 | if (node.kind === "method") {
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| 352 | if (processMethod(node)) return;
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| 353 | }
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| 354 | const placement = node.static ? "static" : "instance";
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| 355 | const methods = classState.methods[placement];
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| 356 | const descKey = node.kind === "method" ? "value" : node.kind;
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| 357 | const key = _core.types.isNumericLiteral(node.key) || _core.types.isBigIntLiteral(node.key) ? _core.types.stringLiteral(String(node.key.value)) : _core.types.toComputedKey(node);
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| 358 | methods.hasComputed = !_core.types.isStringLiteral(key);
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| 359 | const fn = wrapped != null ? wrapped : _core.types.toExpression(node);
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| 360 | let descriptor;
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| 361 | if (!methods.hasComputed && methods.map.has(key.value)) {
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| 362 | descriptor = methods.map.get(key.value);
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| 363 | descriptor[descKey] = fn;
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| 364 | if (descKey === "value") {
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| 365 | descriptor.get = null;
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| 366 | descriptor.set = null;
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| 367 | } else {
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| 368 | descriptor.value = null;
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| 369 | }
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| 370 | } else {
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| 371 | descriptor = {
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| 372 | key: key,
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| 373 | [descKey]: fn
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| 374 | };
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| 375 | methods.list.push(descriptor);
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| 376 | if (!methods.hasComputed) {
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| 377 | methods.map.set(key.value, descriptor);
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| 378 | }
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| 379 | }
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| 380 | }
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| 381 | function processMethod(node) {
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| 382 | if (assumptions.setClassMethods && !node.decorators) {
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| 383 | let {
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| 384 | classRef
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| 385 | } = classState;
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| 386 | if (!node.static) {
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| 387 | insertProtoAliasOnce();
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| 388 | classRef = classState.protoAlias;
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| 389 | }
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| 390 | const methodName = _core.types.memberExpression(_core.types.cloneNode(classRef), node.key, node.computed || _core.types.isLiteral(node.key));
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| 391 | const func = _core.types.functionExpression(node.id, node.params, node.body, node.generator, node.async);
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| 392 | _core.types.inherits(func, node);
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| 393 | const expr = _core.types.expressionStatement(_core.types.assignmentExpression("=", methodName, func));
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| 394 | _core.types.inheritsComments(expr, node);
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| 395 | classState.body.push(expr);
|
|---|
| 396 | return true;
|
|---|
| 397 | }
|
|---|
| 398 | return false;
|
|---|
| 399 | }
|
|---|
| 400 | function insertProtoAliasOnce() {
|
|---|
| 401 | if (classState.protoAlias === null) {
|
|---|
| 402 | setState({
|
|---|
| 403 | protoAlias: classState.scope.generateUidIdentifier("proto")
|
|---|
| 404 | });
|
|---|
| 405 | const classProto = _core.types.memberExpression(classState.classRef, _core.types.identifier("prototype"));
|
|---|
| 406 | const protoDeclaration = _core.types.variableDeclaration("var", [_core.types.variableDeclarator(classState.protoAlias, classProto)]);
|
|---|
| 407 | classState.body.push(protoDeclaration);
|
|---|
| 408 | }
|
|---|
| 409 | }
|
|---|
| 410 | function pushConstructor(superReturns, method, path) {
|
|---|
| 411 | setState({
|
|---|
| 412 | userConstructorPath: path,
|
|---|
| 413 | userConstructor: method,
|
|---|
| 414 | hasConstructor: true,
|
|---|
| 415 | superReturns
|
|---|
| 416 | });
|
|---|
| 417 | const {
|
|---|
| 418 | construct
|
|---|
| 419 | } = classState;
|
|---|
| 420 | _core.types.inheritsComments(construct, method);
|
|---|
| 421 | construct.params = method.params;
|
|---|
| 422 | _core.types.inherits(construct.body, method.body);
|
|---|
| 423 | construct.body.directives = method.body.directives;
|
|---|
| 424 | if (classState.hasInstanceDescriptors || classState.hasStaticDescriptors) {
|
|---|
| 425 | pushDescriptors();
|
|---|
| 426 | }
|
|---|
| 427 | pushInheritsToBody();
|
|---|
| 428 | }
|
|---|
| 429 | function pushInheritsToBody() {
|
|---|
| 430 | if (!classState.isDerived || classState.pushedInherits) return;
|
|---|
| 431 | classState.pushedInherits = true;
|
|---|
| 432 | classState.body.unshift(_core.types.expressionStatement(_core.types.callExpression(classState.file.addHelper(classState.isLoose ? "inheritsLoose" : "inherits"), [_core.types.cloneNode(classState.classRef), _core.types.cloneNode(classState.superName)])));
|
|---|
| 433 | }
|
|---|
| 434 | function extractDynamicKeys() {
|
|---|
| 435 | const {
|
|---|
| 436 | dynamicKeys,
|
|---|
| 437 | node,
|
|---|
| 438 | scope
|
|---|
| 439 | } = classState;
|
|---|
| 440 | for (const elem of node.body.body) {
|
|---|
| 441 | if (!_core.types.isClassMethod(elem) || !elem.computed) continue;
|
|---|
| 442 | if (scope.isPure(elem.key, true)) continue;
|
|---|
| 443 | const id = scope.generateUidIdentifierBasedOnNode(elem.key);
|
|---|
| 444 | dynamicKeys.set(id.name, elem.key);
|
|---|
| 445 | elem.key = id;
|
|---|
| 446 | }
|
|---|
| 447 | }
|
|---|
| 448 | function setupClosureParamsArgs() {
|
|---|
| 449 | const {
|
|---|
| 450 | superName,
|
|---|
| 451 | dynamicKeys
|
|---|
| 452 | } = classState;
|
|---|
| 453 | const closureParams = [];
|
|---|
| 454 | const closureArgs = [];
|
|---|
| 455 | if (classState.isDerived) {
|
|---|
| 456 | let arg = _core.types.cloneNode(superName);
|
|---|
| 457 | if (classState.extendsNative) {
|
|---|
| 458 | arg = _core.types.callExpression(classState.file.addHelper("wrapNativeSuper"), [arg]);
|
|---|
| 459 | (0, _helperAnnotateAsPure.default)(arg);
|
|---|
| 460 | }
|
|---|
| 461 | const param = classState.scope.generateUidIdentifierBasedOnNode(superName);
|
|---|
| 462 | closureParams.push(param);
|
|---|
| 463 | closureArgs.push(arg);
|
|---|
| 464 | setState({
|
|---|
| 465 | superName: _core.types.cloneNode(param)
|
|---|
| 466 | });
|
|---|
| 467 | }
|
|---|
| 468 | for (const [name, value] of dynamicKeys) {
|
|---|
| 469 | closureParams.push(_core.types.identifier(name));
|
|---|
| 470 | closureArgs.push(value);
|
|---|
| 471 | }
|
|---|
| 472 | return {
|
|---|
| 473 | closureParams,
|
|---|
| 474 | closureArgs
|
|---|
| 475 | };
|
|---|
| 476 | }
|
|---|
| 477 | function classTransformer(path, file, builtinClasses, isLoose) {
|
|---|
| 478 | setState({
|
|---|
| 479 | parent: path.parent,
|
|---|
| 480 | scope: path.scope,
|
|---|
| 481 | node: path.node,
|
|---|
| 482 | path,
|
|---|
| 483 | file,
|
|---|
| 484 | isLoose
|
|---|
| 485 | });
|
|---|
| 486 | setState({
|
|---|
| 487 | classId: classState.node.id,
|
|---|
| 488 | classRef: classState.node.id ? _core.types.identifier(classState.node.id.name) : classState.scope.generateUidIdentifier("class"),
|
|---|
| 489 | superName: classState.node.superClass,
|
|---|
| 490 | isDerived: !!classState.node.superClass,
|
|---|
| 491 | constructorBody: _core.types.blockStatement([])
|
|---|
| 492 | });
|
|---|
| 493 | setState({
|
|---|
| 494 | extendsNative: _core.types.isIdentifier(classState.superName) && builtinClasses.has(classState.superName.name) && !classState.scope.hasBinding(classState.superName.name, true)
|
|---|
| 495 | });
|
|---|
| 496 | const {
|
|---|
| 497 | classRef,
|
|---|
| 498 | node,
|
|---|
| 499 | constructorBody
|
|---|
| 500 | } = classState;
|
|---|
| 501 | setState({
|
|---|
| 502 | construct: buildConstructor(classRef, constructorBody, node)
|
|---|
| 503 | });
|
|---|
| 504 | extractDynamicKeys();
|
|---|
| 505 | const {
|
|---|
| 506 | body
|
|---|
| 507 | } = classState;
|
|---|
| 508 | const {
|
|---|
| 509 | closureParams,
|
|---|
| 510 | closureArgs
|
|---|
| 511 | } = setupClosureParamsArgs();
|
|---|
| 512 | buildBody();
|
|---|
| 513 | if (!assumptions.noClassCalls) {
|
|---|
| 514 | constructorBody.body.unshift(_core.types.expressionStatement(_core.types.callExpression(classState.file.addHelper("classCallCheck"), [_core.types.thisExpression(), _core.types.cloneNode(classState.classRef)])));
|
|---|
| 515 | }
|
|---|
| 516 | const isStrict = path.isInStrictMode();
|
|---|
| 517 | let constructorOnly = body.length === 0;
|
|---|
| 518 | if (constructorOnly && !isStrict) {
|
|---|
| 519 | for (const param of classState.construct.params) {
|
|---|
| 520 | if (!_core.types.isIdentifier(param)) {
|
|---|
| 521 | constructorOnly = false;
|
|---|
| 522 | break;
|
|---|
| 523 | }
|
|---|
| 524 | }
|
|---|
| 525 | }
|
|---|
| 526 | const directives = constructorOnly ? classState.construct.body.directives : [];
|
|---|
| 527 | if (!isStrict) {
|
|---|
| 528 | directives.push(_core.types.directive(_core.types.directiveLiteral("use strict")));
|
|---|
| 529 | }
|
|---|
| 530 | if (constructorOnly) {
|
|---|
| 531 | const expr = _core.types.toExpression(classState.construct);
|
|---|
| 532 | return classState.isLoose ? expr : createClassHelper([expr]);
|
|---|
| 533 | }
|
|---|
| 534 | if (!classState.pushedCreateClass) {
|
|---|
| 535 | body.push(_core.types.returnStatement(classState.isLoose ? _core.types.cloneNode(classState.classRef) : createClassHelper([_core.types.cloneNode(classState.classRef)])));
|
|---|
| 536 | }
|
|---|
| 537 | body.unshift(classState.construct);
|
|---|
| 538 | const container = _core.types.arrowFunctionExpression(closureParams, _core.types.blockStatement(body, directives));
|
|---|
| 539 | return _core.types.callExpression(container, closureArgs);
|
|---|
| 540 | }
|
|---|
| 541 | return classTransformer(path, file, builtinClasses, isLoose);
|
|---|
| 542 | }
|
|---|
| 543 |
|
|---|
| 544 | //# sourceMappingURL=transformClass.js.map
|
|---|
