Diffusion Ant (type-hints-typescript) Code

ant/tests/await_reactpromise_shape.mjs
899dad6b8a9etype-hints-typescript

await_reactpromise_shape.mjs
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			function ReactPromiseShape(value) {
			this.value = value;
			}

			ReactPromiseShape.prototype = Object.create(Promise.prototype);
			ReactPromiseShape.prototype.constructor = ReactPromiseShape;
			let lastThis = null;
			ReactPromiseShape.prototype.then = function(resolve, _reject) {
			lastThis = this;
			resolve(this.value);
			};

			async function main() {
			const first = new ReactPromiseShape([1]);
			console.log(`first.then.type:${typeof first.then}`);
			console.log(`first.hasOwn.then:${Object.prototype.hasOwnProperty.call(first, 'then')}`);
			console.log(`proto.hasOwn.then:${Object.prototype.hasOwnProperty.call(ReactPromiseShape.prototype, 'then')}`);
			console.log(`first.then.eq.proto:${first.then === ReactPromiseShape.prototype.then}`);

			const awaited = await first;
			console.log(`await.protoThen.isUndefined:${awaited === undefined}`);
			console.log(`await.protoThen.isArray:${Array.isArray(awaited)}`);
			console.log(`await.protoThen.0:${String(awaited?.[0])}`);
			console.log(`await.protoThen.thisEqInstance:${lastThis === first}`);

			const second = new ReactPromiseShape([2]);
			lastThis = null;
			const resolved = await Promise.resolve(second);
			console.log(`promiseResolve.protoThen.isUndefined:${resolved === undefined}`);
			console.log(`promiseResolve.protoThen.isArray:${Array.isArray(resolved)}`);
			console.log(`promiseResolve.protoThen.0:${String(resolved?.[0])}`);
			console.log(`promiseResolve.protoThen.thisEqInstance:${lastThis === second}`);
			}

			await main();

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