Robert Nystrom
2f2bdc3c22
Change-Id: I182e28a3c4b44dd899e5ea30ac5c5c3ba60fd6cc Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/425333 Reviewed-by: Srujan Gaddam <srujzs@google.com> Commit-Queue: Bob Nystrom <rnystrom@google.com> Auto-Submit: Bob Nystrom <rnystrom@google.com>
109 lines
3.0 KiB
Dart
109 lines
3.0 KiB
Dart
// Copyright (c) 2020, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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// dart2jsOptions=--enable-asserts
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// Tests that `js_util` methods correctly check that function arguments allow
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// interop.
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@JS()
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library assert_function_interop_test;
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import 'package:js/js.dart';
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import 'package:js/js_util.dart' as js_util;
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import 'package:expect/expect.dart';
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@JS()
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external void eval(String code);
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@JS()
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class JSClass {
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external JSClass();
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}
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@JS()
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external get JSClassWithFuncArgs;
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@JS()
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external void Function() get jsFunction;
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void dartFunction() {}
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@pragma('dart2js:noInline')
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@pragma('dart2js:assumeDynamic')
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confuse(x) => x;
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void main() {
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eval(r"""
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function JSClass() {
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this.functionProperty = function() {};
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this.methodWithFuncArgs = function(f1, f2) {
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f1();
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if (arguments.length == 2) f2();
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};
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}
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function JSClassWithFuncArgs(f1, f2) {
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f1();
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if (arguments.length == 2) f2();
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}
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function jsFunction() {}
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""");
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var jsClass = JSClass();
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dynamic d = confuse(dartFunction);
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var interopFunction = allowInterop(dartFunction);
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var interopDynamic = confuse(allowInterop(dartFunction));
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// Functions that aren't wrapped with `allowInterop` should throw.
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Expect.throws(
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() => js_util.setProperty(jsClass, 'functionProperty', dartFunction),
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);
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Expect.throws(() => js_util.setProperty(jsClass, 'functionProperty', d));
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// Correctly wrapped functions should not throw.
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js_util.setProperty(jsClass, 'functionProperty', interopFunction);
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js_util.setProperty(jsClass, 'functionProperty', interopDynamic);
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// Using a JS function should not throw.
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js_util.setProperty(jsClass, 'functionProperty', jsFunction);
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Expect.throws(
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() => js_util.callMethod(jsClass, 'methodWithFuncArgs', [dartFunction]),
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);
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Expect.throws(() => js_util.callMethod(jsClass, 'methodWithFuncArgs', [d]));
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js_util.callMethod(jsClass, 'methodWithFuncArgs', [interopFunction]);
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js_util.callMethod(jsClass, 'methodWithFuncArgs', [interopDynamic]);
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// Check to see that all arguments are checked.
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Expect.throws(
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() => js_util.callMethod(jsClass, 'methodWithFuncArgs', [
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interopFunction,
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dartFunction,
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]),
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);
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js_util.callMethod(jsClass, 'methodWithFuncArgs', [
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interopFunction,
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interopFunction,
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]);
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js_util.callMethod(jsClass, 'methodWithFuncArgs', [jsFunction]);
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Expect.throws(
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() => js_util.callConstructor(JSClassWithFuncArgs, [dartFunction]),
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);
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Expect.throws(() => js_util.callConstructor(JSClassWithFuncArgs, [d]));
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js_util.callConstructor(JSClassWithFuncArgs, [interopFunction]);
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js_util.callConstructor(JSClassWithFuncArgs, [interopDynamic]);
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Expect.throws(
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() => js_util.callConstructor(JSClassWithFuncArgs, [
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interopFunction,
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dartFunction,
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]),
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);
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js_util.callConstructor(JSClassWithFuncArgs, [
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interopFunction,
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interopFunction,
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]);
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js_util.callConstructor(JSClassWithFuncArgs, [jsFunction]);
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}
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