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 = _default;
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7 |
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8 | function _helperHoistVariables() {
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9 | const data = _interopRequireDefault(require("@babel/helper-hoist-variables"));
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10 |
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11 | _helperHoistVariables = function () {
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12 | return data;
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13 | };
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14 |
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15 | return data;
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16 | }
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17 |
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18 | function t() {
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19 | const data = _interopRequireWildcard(require("@babel/types"));
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20 |
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21 | t = function () {
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22 | return data;
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23 | };
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24 |
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25 | return data;
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26 | }
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27 |
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28 | 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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29 |
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30 | function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
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31 |
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32 | const visitor = {
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33 | enter(path, state) {
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34 | if (path.isThisExpression()) {
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35 | state.foundThis = true;
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36 | }
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37 |
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38 | if (path.isReferencedIdentifier({
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39 | name: "arguments"
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40 | })) {
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41 | state.foundArguments = true;
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42 | }
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43 | },
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44 |
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45 | Function(path) {
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46 | path.skip();
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47 | }
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48 |
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49 | };
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50 |
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51 | function _default(path, scope = path.scope) {
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52 | const {
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53 | node
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54 | } = path;
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55 | const container = t().functionExpression(null, [], node.body, node.generator, node.async);
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56 | let callee = container;
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57 | let args = [];
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58 | (0, _helperHoistVariables().default)(path, id => scope.push({
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59 | id
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60 | }));
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61 | const state = {
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62 | foundThis: false,
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63 | foundArguments: false
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64 | };
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65 | path.traverse(visitor, state);
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66 |
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67 | if (state.foundArguments || state.foundThis) {
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68 | callee = t().memberExpression(container, t().identifier("apply"));
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69 | args = [];
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70 |
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71 | if (state.foundThis) {
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72 | args.push(t().thisExpression());
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73 | }
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74 |
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75 | if (state.foundArguments) {
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76 | if (!state.foundThis) args.push(t().nullLiteral());
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77 | args.push(t().identifier("arguments"));
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78 | }
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79 | }
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80 |
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81 | let call = t().callExpression(callee, args);
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82 | if (node.generator) call = t().yieldExpression(call, true);
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83 | return t().returnStatement(call);
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84 | } |
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