Diffusion Ant (ast) Code

ant/tests/test_async.cjs
32b18f1b1662ast

test_async.cjs
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			// Test async/await functionality
			console.log('=== Async/Await Tests ===');

			// Test 1: Basic async function
			console.log('\nTest 1: Basic async function');
			async function basicAsync() {
			return 42;
			}

			basicAsync().then(v => {
			console.log('Basic async returned: ' + v);
			});

			// Test 2: Async arrow function
			console.log('\nTest 2: Async arrow function');
			const arrowAsync = async () => {
			return 'arrow result';
			};

			arrowAsync().then(v => {
			console.log('Arrow async returned: ' + v);
			});

			// Test 3: Async arrow function with single parameter
			console.log('\nTest 3: Async arrow with param');
			const singleParamAsync = async x => {
			return x * 2;
			};

			singleParamAsync(21).then(v => {
			console.log('Single param async returned: ' + v);
			});

			// Test 4: Async arrow function with multiple parameters
			console.log('\nTest 4: Async arrow with multiple params');
			const multiParamAsync = async (a, b) => {
			return a + b;
			};

			multiParamAsync(10, 32).then(v => {
			console.log('Multi param async returned: ' + v);
			});

			// Test 5: Async function with Promise
			console.log('\nTest 5: Async function returning Promise');
			async function withPromise() {
			return Promise.resolve('promise from async');
			}

			withPromise().then(v => {
			console.log('Async with promise: ' + v);
			});

			// Test 6: Async function with setTimeout
			console.log('\nTest 6: Async function with setTimeout');
			async function withTimeout() {
			setTimeout(() => {
			console.log('Timeout inside async executed');
			}, 100);
			return 'timeout scheduled';
			}

			withTimeout().then(v => {
			console.log('Async with timeout returned: ' + v);
			});

			// Test 7: Async function with queueMicrotask
			console.log('\nTest 7: Async function with queueMicrotask');
			async function withMicrotask() {
			queueMicrotask(() => {
			console.log('Microtask inside async executed');
			});
			return 'microtask queued';
			}

			withMicrotask().then(v => {
			console.log('Async with microtask returned: ' + v);
			});

			// Test 8: Async functions must return primitives for now (Promise chaining limitation)
			console.log('\nTest 8: Async returning values');
			async function chain1() {
			return 5;
			}

			chain1().then(v => {
			console.log('Chained async result: ' + v * 2);
			});

			// Test 9: Async function as callback
			console.log('\nTest 9: Async function as callback');
			function executor(fn) {
			fn().then(v => {
			console.log('Callback async result: ' + v);
			});
			}

			executor(async () => {
			return 'callback value';
			});

			// Test 10: Multiple promise chains
			console.log('\nTest 10: Multiple promise chains');
			Promise.resolve(1)
			.then(v => v + 1)
			.then(v => v + 1)
			.then(v => v + 1)
			.then(v => {
			console.log('Multiple chains result: ' + v);
			});

			// Test 11: Async function expression
			console.log('\nTest 11: Async function expression');
			const asyncExpr = async function () {
			return 'expression';
			};

			asyncExpr().then(v => {
			console.log('Async expression result: ' + v);
			});

			// Test 12: Async function with conditional
			console.log('\nTest 12: Async function with conditional');
			async function conditional(flag) {
			if (flag) {
			return 'true branch';
			}
			return 'false branch';
			}

			conditional(true).then(v => {
			console.log('Conditional async (true): ' + v);
			});

			conditional(false).then(v => {
			console.log('Conditional async (false): ' + v);
			});

			// Test 13: Async with Promise.resolve
			console.log('\nTest 13: Async with Promise.resolve');
			async function withResolve() {
			return Promise.resolve('resolved value');
			}

			withResolve().then(v => {
			console.log('Async with resolve result: ' + v);
			});

			// Test 14: Async with object method
			console.log('\nTest 14: Async object method');
			const obj = {
			value: 100,
			asyncMethod: async function () {
			return this.value;
			}
			};

			obj.asyncMethod().then(v => {
			console.log('Async object method: ' + v);
			});

			// Test 15: Async arrow in object
			console.log('\nTest 15: Async arrow in object');
			const obj2 = {
			value: 200,
			asyncArrow: async () => {
			return 'arrow in object';
			}
			};

			obj2.asyncArrow().then(v => {
			console.log('Async arrow in object: ' + v);
			});

			console.log('\n=== Synchronous code finished ===');

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