| // Copyright (c) 2022, the Dart project authors. Please see the AUTHORS file |
| // for details. All rights reserved. Use of this source code is governed by a |
| // BSD-style license that can be found in the LICENSE file. |
| |
| import 'dart:js_util'; |
| import 'dart:js_interop'; |
| import 'dart:typed_data'; |
| |
| import 'package:async_helper/async_helper.dart'; |
| import 'package:expect/expect.dart'; |
| |
| @JS() |
| external void eval(String code); |
| |
| void createObjectTest() { |
| Object o = newObject(); |
| Expect.isFalse(hasProperty(o, 'foo')); |
| Expect.equals('bar', setProperty(o, 'foo', 'bar')); |
| Expect.isTrue(hasProperty(o, 'foo')); |
| Expect.equals('bar', getProperty(o, 'foo')); |
| } |
| |
| void equalTest() { |
| // Different objects aren't equal. |
| { |
| Object o1 = newObject(); |
| Object o2 = newObject(); |
| Expect.notEquals(o1, o2); |
| } |
| |
| { |
| eval(r''' |
| function JSClass() {} |
| |
| globalThis.boolData = true; |
| globalThis.boolData2 = true; |
| globalThis.numData = 4; |
| globalThis.numData2 = 4; |
| globalThis.arrData = [1, 2, 3]; |
| globalThis.strData = 'foo'; |
| globalThis.strData2 = 'foo'; |
| globalThis.funcData = function JSClass() {} |
| globalThis.JSClass = new globalThis.funcData(); |
| '''); |
| Object gt = globalThis; |
| void test(String propertyName, bool testCanonicalization) { |
| Expect.equals( |
| getProperty(gt, propertyName), getProperty(gt, propertyName)); |
| if (testCanonicalization) { |
| Expect.equals( |
| getProperty(gt, propertyName), getProperty(gt, propertyName + "2")); |
| } |
| } |
| |
| test("boolData", true); |
| test("numData", true); |
| // TODO(joshualitt): Start returning arrays by reference. |
| //test("arrData", false); |
| test("strData", true); |
| test("funcData", false); |
| test("JSClass", false); |
| } |
| } |
| |
| void instanceofTest() { |
| eval(r''' |
| globalThis.JSClass1 = function() {} |
| globalThis.JSClass2 = function() {} |
| |
| globalThis.obj = new JSClass1(); |
| '''); |
| Expect.isTrue(instanceof( |
| getProperty(globalThis, 'obj'), getProperty(globalThis, 'JSClass1'))); |
| Expect.isFalse(instanceof( |
| getProperty(globalThis, 'obj'), getProperty(globalThis, 'JSClass2'))); |
| } |
| |
| void _expectIterableEquals(Iterable<Object?> l, Iterable<Object?> r) { |
| final lIt = l.iterator; |
| final rIt = r.iterator; |
| while (lIt.moveNext()) { |
| Expect.isTrue(rIt.moveNext()); |
| _expectRecEquals(lIt.current, rIt.current); |
| } |
| Expect.isFalse(rIt.moveNext()); |
| } |
| |
| void _expectRecEquals(Object? l, Object? r) { |
| if (l is Iterable && r is Iterable) { |
| _expectIterableEquals(l, r); |
| } else if (l is Map && r is Map) { |
| _expectIterableEquals(l.keys, r.keys); |
| for (final key in l.keys) { |
| _expectRecEquals(l[key], r[key]); |
| } |
| } else { |
| Expect.equals(l, r); |
| } |
| } |
| |
| void evalAndConstructTest() { |
| eval(r''' |
| function JSClass(c) { |
| this.c = c; |
| this.sum = (a, b) => { |
| return a + b + this.c; |
| } |
| this.list = ['a', 'b', 'c']; |
| } |
| globalThis.JSClass = JSClass; |
| '''); |
| Object gt = globalThis; |
| Object constructor = getProperty(gt, 'JSClass'); |
| Object jsClass = callConstructor(constructor, ['world!']); |
| Expect.equals('hello world!', callMethod(jsClass, 'sum', ['hello', ' '])); |
| _expectRecEquals( |
| ['a', 'b', 'c'], getProperty(jsClass, 'list') as List<Object?>); |
| } |
| |
| class Foo { |
| final int i; |
| Foo(this.i); |
| } |
| |
| void dartObjectRoundTripTest() { |
| Object o = newObject(); |
| setProperty(o, 'foo', Foo(4)); |
| Object foo = getProperty(o, 'foo')!; |
| Expect.equals(4, (foo as Foo).i); |
| } |
| |
| void deepConversionsTest() { |
| // Dart to JS. |
| Expect.isNull(dartify(jsify(null))); |
| Expect.equals(true, dartify(jsify(true))); |
| Expect.equals(2.0, dartify(jsify(2.0))); |
| Expect.equals('foo', dartify(jsify('foo'))); |
| _expectRecEquals( |
| ['a', 'b', 'c'], dartify(jsify(['a', 'b', 'c'])) as List<Object?>); |
| _expectRecEquals( |
| { |
| 'null': 'foo', |
| 'foo': null, |
| 'a': 1, |
| 'b': true, |
| 'c': [1, 2, 3, null], |
| 'd': 'foo', |
| 'e': { |
| 'f': 2, |
| 'g': [2, 4, 6] |
| }, |
| }, |
| dartify(jsify({ |
| 'null': 'foo', |
| 'foo': null, |
| 'a': 1, |
| 'b': true, |
| 'c': [1, 2, 3, null], |
| 'd': 'foo', |
| 'e': { |
| 'f': 2, |
| 'g': [2, 4, 6] |
| }, |
| }))); |
| // TODO(joshualitt): Debug the cast failure. |
| //List<Object?> l = Int8List.fromList(<int>[-128, 0, 127]); |
| //_expectIterableEquals(l, dartify(jsify(l)) as Int8List); |
| List<Object?> l = Uint8List.fromList([-1, 0, 255, 256]); |
| _expectIterableEquals(l, dartify(jsify(l)) as Uint8List); |
| l = Uint8ClampedList.fromList([-1, 0, 255, 256]); |
| _expectIterableEquals(l, dartify(jsify(l)) as Uint8ClampedList); |
| l = Int16List.fromList([-32769, -32768, 0, 32767, 32768]); |
| _expectIterableEquals(l, dartify(jsify(l)) as Int16List); |
| l = Uint16List.fromList([-1, 0, 65535, 65536]); |
| _expectIterableEquals(l, dartify(jsify(l)) as Uint16List); |
| l = Int32List.fromList([-2147483648, 0, 2147483647]); |
| _expectIterableEquals(l, dartify(jsify(l)) as Int32List); |
| l = Uint32List.fromList([-1, 0, 4294967295, 4294967296]); |
| _expectIterableEquals(l, dartify(jsify(l)) as Uint32List); |
| l = Float32List.fromList([-1000.488, -0.00001, 0.0001, 10004.888]); |
| _expectIterableEquals(l, dartify(jsify(l)) as Float32List); |
| l = Float64List.fromList([-1000.488, -0.00001, 0.0001, 10004.888]); |
| _expectIterableEquals(l, dartify(jsify(l)) as Float64List); |
| ByteBuffer buffer = Uint8List.fromList([0, 1, 2, 3]).buffer; |
| _expectIterableEquals(buffer.asUint8List(), |
| (dartify(jsify(buffer)) as ByteBuffer).asUint8List()); |
| ByteData byteData = ByteData.view(buffer); |
| _expectIterableEquals(byteData.buffer.asUint8List(), |
| (dartify(jsify(byteData)) as ByteData).buffer.asUint8List()); |
| |
| // JS to Dart. |
| eval(r''' |
| globalThis.a = null; |
| globalThis.b = 'foo'; |
| globalThis.c = ['a', 'b', 'c']; |
| globalThis.d = 2.5; |
| globalThis.e = true; |
| globalThis.f = function () { return 'hello world'; }; |
| globalThis.g = { |
| null: 'foo', |
| 'foo': null, |
| 'a': 1, |
| 'b': true, |
| 'c': [1, 2, 3, null], |
| 'd': 'foo', |
| 'e': {'f': 2, 'g': [2, 4, 6]}, |
| }; |
| globalThis.invoke = function (f) { return f(); } |
| globalThis.rec = {}; |
| globalThis.rec = {'a': rec}; |
| // TODO(joshualitt): Fix int8 failure. |
| // globalThis.int8Array = new Int8Array([-128, 0, 127]); |
| globalThis.uint8Array = new Uint8Array([-1, 0, 255, 256]); |
| globalThis.uint8ClampedArray = new Uint8ClampedArray([-1, 0, 255, 256]); |
| globalThis.int16Array = new Int16Array([-32769, -32768, 0, 32767, 32768]); |
| globalThis.uint16Array = new Uint16Array([-1, 0, 65535, 65536]); |
| globalThis.int32Array = new Int32Array([-2147483648, 0, 2147483647]); |
| globalThis.uint32Array = new Uint32Array([-1, 0, 4294967295, 4294967296]); |
| globalThis.float32Array = new Float32Array([-1000.488, -0.00001, 0.0001, |
| 10004.888]); |
| globalThis.float64Array = new Float64Array([-1000.488, -0.00001, 0.0001, |
| 10004.888]); |
| globalThis.arrayBuffer = globalThis.uint8Array.buffer; |
| globalThis.dataView = new DataView(globalThis.arrayBuffer); |
| globalThis.implicitExplicit = [ |
| {'foo': 'bar'}, |
| [1, 2, 3, {'baz': 'boo'}], |
| ]; |
| let keyObject = function () {}; |
| globalThis.keyObject1 = keyObject; |
| globalThis.keyObject2 = keyObject; |
| '''); |
| Object gt = globalThis; |
| Expect.isNull(getProperty(gt, 'a')); |
| Expect.equals('foo', getProperty(gt, 'b')); |
| _expectRecEquals(['a', 'b', 'c'], getProperty<List<Object?>>(gt, 'c')); |
| Expect.equals(2.5, getProperty(gt, 'd')); |
| Expect.equals(true, getProperty(gt, 'e')); |
| _expectRecEquals({ |
| 'null': 'foo', |
| 'foo': null, |
| 'a': 1, |
| 'b': true, |
| 'c': [1, 2, 3, null], |
| 'd': 'foo', |
| 'e': { |
| 'f': 2, |
| 'g': [2, 4, 6] |
| }, |
| }, dartify(getProperty(gt, 'g'))); |
| _expectRecEquals({ |
| 'a': {}, |
| }, dartify(getProperty(gt, 'rec'))); |
| |
| _expectIterableEquals(Uint8List.fromList([-1, 0, 255, 256]), |
| getProperty(gt, 'uint8Array') as Uint8List); |
| _expectIterableEquals(Uint8ClampedList.fromList([-1, 0, 255, 256]), |
| getProperty(gt, 'uint8ClampedArray') as Uint8ClampedList); |
| _expectIterableEquals(Int16List.fromList([-32769, -32768, 0, 32767, 32768]), |
| getProperty(gt, 'int16Array') as Int16List); |
| _expectIterableEquals(Uint16List.fromList([-1, 0, 65535, 65536]), |
| getProperty<List<Object?>>(gt, 'uint16Array') as Uint16List); |
| _expectIterableEquals(Int32List.fromList([-2147483648, 0, 2147483647]), |
| getProperty(gt, 'int32Array') as Int32List); |
| _expectIterableEquals(Uint32List.fromList([-1, 0, 4294967295, 4294967296]), |
| getProperty(gt, 'uint32Array') as Uint32List); |
| _expectIterableEquals( |
| Float32List.fromList([-1000.488, -0.00001, 0.0001, 10004.888]), |
| getProperty(gt, 'float32Array') as Float32List); |
| _expectIterableEquals( |
| Float64List.fromList([-1000.488, -0.00001, 0.0001, 10004.888]), |
| getProperty(gt, 'float64Array') as Float64List); |
| _expectIterableEquals(Uint8List.fromList([-1, 0, 255, 256]), |
| (getProperty(gt, 'arrayBuffer') as ByteBuffer).asUint8List()); |
| _expectIterableEquals(Uint8List.fromList([-1, 0, 255, 256]), |
| (getProperty(gt, 'dataView') as ByteData).buffer.asUint8List()); |
| |
| // Confirm a function that takes a roundtrip remains a function. |
| Expect.equals('hello world', |
| callMethod(gt, 'invoke', <Object?>[dartify(getProperty(gt, 'f'))])); |
| |
| // Confirm arrays, which need to be converted implicitly, are still |
| // recursively converted by dartify when desired. |
| _expectIterableEquals([ |
| {'foo': 'bar'}, |
| [ |
| 1, |
| 2, |
| 3, |
| {'baz': 'boo'} |
| ], |
| ], dartify(getProperty(globalThis, 'implicitExplicit')) as Iterable); |
| |
| // Test that JS objects behave as expected in Map / Set. |
| Set<Object?> set = {}; |
| Expect.isTrue(set.add(getProperty(globalThis, 'keyObject1'))); |
| Expect.isFalse(set.add(getProperty(globalThis, 'keyObject2'))); |
| Expect.equals(1, set.length); |
| |
| Map<Object?, Object?> map = {}; |
| map[getProperty(globalThis, 'keyObject1')] = 'foo'; |
| map[getProperty(globalThis, 'keyObject2')] = 'bar'; |
| Expect.equals(1, map.length); |
| Expect.equals('bar', map[getProperty(globalThis, 'keyObject1')]); |
| } |
| |
| Future<void> promiseToFutureTest() async { |
| Object gt = globalThis; |
| eval(r''' |
| globalThis.rejectedPromise = new Promise((resolve, reject) => reject('rejected')); |
| globalThis.resolvedPromise = new Promise(resolve => resolve('resolved')); |
| globalThis.getResolvedPromise = function() { |
| return resolvedPromise; |
| } |
| //globalThis.nullRejectedPromise = Promise.reject(null); |
| '''); |
| |
| // Test resolved |
| { |
| Future f = promiseToFuture(getProperty(gt, 'resolvedPromise')); |
| Expect.equals('resolved', await f); |
| } |
| |
| // Test rejected |
| { |
| String result = await asyncExpectThrows<String>( |
| promiseToFuture(getProperty(gt, 'rejectedPromise'))); |
| Expect.equals('rejected', result); |
| } |
| |
| // Test return resolved |
| { |
| Future f = promiseToFuture(callMethod(gt, 'getResolvedPromise', [])); |
| Expect.equals('resolved', await f); |
| } |
| |
| // Test promise chaining |
| { |
| bool didThen = false; |
| Future f = promiseToFuture(callMethod(gt, 'getResolvedPromise', [])); |
| f.then((resolved) { |
| Expect.equals(resolved, 'resolved'); |
| didThen = true; |
| }); |
| await f; |
| Expect.isTrue(didThen); |
| } |
| |
| // Test rejecting promise with null should trigger an exception. |
| // TODO(joshualitt): Fails with an illegal cast. |
| // { |
| // Future f = promiseToFuture(getProperty(gt, 'nullRejectedPromise')); |
| // f.then((_) { Expect.fail("Expect promise to reject"); }).catchError((e) { |
| // print('A'); |
| // Expect.isTrue(e is NullRejectionException); |
| // }); |
| // await f; |
| // } |
| } |
| |
| @JS('Symbol') |
| @staticInterop |
| class _JSSymbol { |
| @JS('for') |
| external static _JSSymbol _for(JSString s); |
| external static JSString keyFor(_JSSymbol s); |
| } |
| |
| @JS() |
| external _JSSymbol get symbol; |
| |
| @JS() |
| external _JSSymbol get symbol2; |
| |
| @JS() |
| external JSString methodWithSymbol(_JSSymbol s); |
| |
| void symbolTest() { |
| eval(r''' |
| var s1 = Symbol.for('symbol'); |
| globalThis.symbol = s1; |
| globalThis[s1] = 'boo'; |
| globalThis.methodWithSymbol = function(s) { |
| return Symbol.keyFor(s); |
| } |
| var symbol2 = Symbol.for('symbolMethod'); |
| globalThis[symbol2] = function() { |
| return 'hello world'; |
| } |
| globalThis.symbol2 = symbol2; |
| '''); |
| Expect.equals( |
| _JSSymbol.keyFor(_JSSymbol._for('symbol'.toJS)).toDart, 'symbol'); |
| Expect.equals( |
| getProperty<String>( |
| globalThis, getProperty<_JSSymbol>(globalThis, 'symbol')), |
| 'boo'); |
| Expect.equals(methodWithSymbol(symbol).toDart, 'symbol'); |
| Expect.equals(_JSSymbol.keyFor(symbol).toDart, 'symbol'); |
| Expect.equals( |
| _JSSymbol.keyFor(getProperty<_JSSymbol>(globalThis, 'symbol')).toDart, |
| 'symbol'); |
| Expect.equals(callMethod<String>(globalThis, symbol2, []), 'hello world'); |
| } |
| |
| void main() async { |
| createObjectTest(); |
| equalTest(); |
| instanceofTest(); |
| evalAndConstructTest(); |
| dartObjectRoundTripTest(); |
| deepConversionsTest(); |
| await promiseToFutureTest(); |
| symbolTest(); |
| } |