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 = addCallSuperHelper;
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7 | var _core = require("@babel/core");
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8 | const helper = _core.template.statement`
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9 | function CALL_SUPER(
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10 | _this,
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11 | derived,
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12 | args,
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13 | ) {
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14 | function isNativeReflectConstruct() {
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15 | if (typeof Reflect === "undefined" || !Reflect.construct) return false;
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16 |
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17 | // core-js@3
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18 | if (Reflect.construct.sham) return false;
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19 |
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20 | // Proxy can't be polyfilled. Every browser implemented
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21 | // proxies before or at the same time as Reflect.construct,
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22 | // so if they support Proxy they also support Reflect.construct.
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23 | if (typeof Proxy === "function") return true;
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24 |
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25 | // Since Reflect.construct can't be properly polyfilled, some
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26 | // implementations (e.g. core-js@2) don't set the correct internal slots.
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27 | // Those polyfills don't allow us to subclass built-ins, so we need to
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28 | // use our fallback implementation.
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29 | try {
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30 | // If the internal slots aren't set, this throws an error similar to
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31 | // TypeError: this is not a Boolean object.
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32 | return !Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {}),);
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33 | } catch (e) {
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34 | return false;
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35 | }
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36 | }
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37 |
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38 | // Super
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39 | derived = GET_PROTOTYPE_OF(derived);
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40 | return POSSIBLE_CONSTRUCTOR_RETURN(
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41 | _this,
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42 | isNativeReflectConstruct()
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43 | ? // NOTE: This doesn't work if this.__proto__.constructor has been modified.
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44 | Reflect.construct(
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45 | derived,
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46 | args || [],
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47 | GET_PROTOTYPE_OF(_this).constructor,
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48 | )
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49 | : derived.apply(_this, args),
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50 | );
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51 | }
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52 | `;
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53 | const helperIDs = new WeakMap();
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54 | function addCallSuperHelper(file) {
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55 | if (helperIDs.has(file)) {
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56 | return (_core.types.cloneNode || _core.types.clone)(helperIDs.get(file));
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57 | }
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58 | try {
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59 | return file.addHelper("callSuper");
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60 | } catch (_unused) {}
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61 | const id = file.scope.generateUidIdentifier("callSuper");
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62 | helperIDs.set(file, id);
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63 | const fn = helper({
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64 | CALL_SUPER: id,
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65 | GET_PROTOTYPE_OF: file.addHelper("getPrototypeOf"),
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66 | POSSIBLE_CONSTRUCTOR_RETURN: file.addHelper("possibleConstructorReturn")
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67 | });
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68 | file.path.unshiftContainer("body", [fn]);
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69 | file.scope.registerDeclaration(file.path.get("body.0"));
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70 | return _core.types.cloneNode(id);
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71 | }
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72 |
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73 | //# sourceMappingURL=inline-callSuper-helpers.js.map
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