| 1 | "use strict";
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| 2 | Object.defineProperty(exports, "__esModule", { value: true });
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| 3 | const shared_utils_1 = require("@nestjs/common/utils/shared.utils");
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| 4 | const iterare_1 = require("iterare");
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| 5 | class MetadataScanner {
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| 6 | scanFromPrototype(instance, prototype, callback) {
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| 7 | const methodNames = new Set(this.getAllFilteredMethodNames(prototype));
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| 8 | return iterare_1.default(methodNames)
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| 9 | .map(callback)
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| 10 | .filter(metadata => !shared_utils_1.isNil(metadata))
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| 11 | .toArray();
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| 12 | }
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| 13 | *getAllFilteredMethodNames(prototype) {
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| 14 | const isMethod = (prop) => {
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| 15 | const descriptor = Object.getOwnPropertyDescriptor(prototype, prop);
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| 16 | if (descriptor.set || descriptor.get) {
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| 17 | return false;
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| 18 | }
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| 19 | return !shared_utils_1.isConstructor(prop) && shared_utils_1.isFunction(prototype[prop]);
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| 20 | };
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| 21 | do {
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| 22 | yield* iterare_1.default(Object.getOwnPropertyNames(prototype))
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| 23 | .filter(isMethod)
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| 24 | .toArray();
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| 25 | } while ((prototype = Reflect.getPrototypeOf(prototype)) &&
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| 26 | prototype !== Object.prototype);
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| 27 | }
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| 28 | }
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| 29 | exports.MetadataScanner = MetadataScanner;
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