| // Copyright (c) 2011, 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. |
| // |
| // Test named arguments work as expected regardless of whether the function or |
| // method is called via function call syntax or method call syntax. |
| // VMOptions=--optimization-counter-threshold=10 |
| |
| // @dart = 2.9 |
| |
| import "package:expect/expect.dart"; |
| |
| Validate(tag, a, b) { |
| // tag encodes which parameters are passed in with values a: 111, b: 222. |
| if (tag == 'ab') { |
| Expect.equals(a, 111); |
| Expect.equals(b, 222); |
| } |
| if (tag == 'a') { |
| Expect.equals(a, 111); |
| Expect.equals(b, 20); |
| } |
| if (tag == 'b') { |
| Expect.equals(a, 10); |
| Expect.equals(b, 222); |
| } |
| if (tag == '') { |
| Expect.equals(a, 10); |
| Expect.equals(b, 20); |
| } |
| } |
| |
| class HasMethod { |
| int calls = 0; |
| |
| HasMethod(); |
| |
| foo(tag, [a = 10, b = 20]) { |
| calls += 1; |
| Validate(tag, a, b); |
| } |
| |
| foo2(tag, {a: 10, b: 20}) { |
| calls += 1; |
| Validate(tag, a, b); |
| } |
| } |
| |
| class HasField { |
| int calls = 0; |
| dynamic foo, foo2; |
| |
| HasField() { |
| foo = makeFoo(this); |
| foo2 = makeFoo2(this); |
| } |
| |
| makeFoo(owner) { |
| // This function is closed-over 'owner'. |
| return (tag, [a = 10, b = 20]) { |
| owner.calls += 1; |
| Validate(tag, a, b); |
| }; |
| } |
| |
| makeFoo2(owner) { |
| // This function is closed-over 'owner'. |
| return (tag, {a: 10, b: 20}) { |
| owner.calls += 1; |
| Validate(tag, a, b); |
| }; |
| } |
| } |
| |
| class NamedParametersWithConversionsTest { |
| static testMethodCallSyntax(a) { |
| a.foo(''); |
| a.foo('a', 111); |
| a.foo('ab', 111, 222); |
| a.foo2('a', a: 111); |
| a.foo2('b', b: 222); |
| a.foo2('ab', a: 111, b: 222); |
| a.foo2('ab', b: 222, a: 111); |
| |
| Expect.equals(7, a.calls); |
| |
| Expect.throwsNoSuchMethodError(() => a.foo()); // Too few arguments. |
| Expect.throwsNoSuchMethodError( |
| () => a.foo('abc', 1, 2, 3)); // Too many arguments. |
| Expect.throwsNoSuchMethodError(() => a.foo2('c', c: 1)); // Bad name. |
| Expect.throwsNoSuchMethodError( |
| () => a.foo2('c', a: 111, c: 1)); // Bad name. |
| |
| Expect.equals(7, a.calls); |
| } |
| |
| static testFunctionCallSyntax(a) { |
| var f = a.foo; |
| var f2 = a.foo2; |
| f(''); |
| f('a', 111); |
| f('ab', 111, 222); |
| f2('a', a: 111); |
| f2('b', b: 222); |
| f2('ab', a: 111, b: 222); |
| f2('ab', b: 222, a: 111); |
| |
| Expect.equals(7, a.calls); |
| |
| Expect.throwsNoSuchMethodError(() => f()); // Too few arguments. |
| Expect.throwsNoSuchMethodError( |
| () => f('abc', 1, 2, 3)); // Too many arguments. |
| Expect.throwsNoSuchMethodError(() => f2('c', c: 1)); // Bad name. |
| Expect.throwsNoSuchMethodError(() => f2('c', a: 111, c: 1)); // Bad name. |
| |
| Expect.equals(7, a.calls); |
| } |
| |
| static testMain() { |
| // 'Plain' calls where the method/field syntax matches the object. |
| testMethodCallSyntax(new HasMethod()); |
| testFunctionCallSyntax(new HasField()); |
| |
| // 'Conversion' calls where method/field call syntax does not match the |
| // object. |
| testMethodCallSyntax(new HasField()); |
| testFunctionCallSyntax(new HasMethod()); |
| } |
| } |
| |
| main() { |
| for (var i = 0; i < 20; i++) { |
| NamedParametersWithConversionsTest.testMain(); |
| } |
| } |