mirror of
https://github.com/dart-lang/sdk
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b3405d5ebc
BUG= R=asiva@google.com Review URL: https://codereview.chromium.org/1759973002 .
147 lines
3.3 KiB
Dart
147 lines
3.3 KiB
Dart
// Copyright (c) 2011, 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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//
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// Test named arguments work as expected regardless of whether the function or
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// method is called via function call syntax or method call syntax.
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// VMOptions=--optimization-counter-threshold=10 --no-background-compilation
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import "package:expect/expect.dart";
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Validate(tag, a, b) {
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// tag encodes which parameters are passed in with values a: 111, b: 222.
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if (tag == 'ab') {
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Expect.equals(a, 111);
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Expect.equals(b, 222);
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}
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if (tag == 'a') {
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Expect.equals(a, 111);
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Expect.equals(b, 20);
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}
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if (tag == 'b') {
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Expect.equals(a, 10);
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Expect.equals(b, 222);
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}
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if (tag == '') {
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Expect.equals(a, 10);
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Expect.equals(b, 20);
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}
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}
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class HasMethod {
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int calls;
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HasMethod() : calls = 0 {}
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foo(tag, [a = 10, b = 20]) {
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calls += 1;
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Validate(tag, a, b);
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}
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foo2(tag, {a: 10, b: 20}) {
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calls += 1;
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Validate(tag, a, b);
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}
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}
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class HasField {
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int calls;
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var foo, foo2;
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HasField() {
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calls = 0;
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foo = makeFoo(this);
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foo2 = makeFoo2(this);
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}
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makeFoo(owner) {
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// This function is closed-over 'owner'.
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return (tag, [a = 10, b = 20]) {
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owner.calls += 1;
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Validate(tag, a, b);
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};
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}
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makeFoo2(owner) {
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// This function is closed-over 'owner'.
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return (tag, {a: 10, b: 20}) {
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owner.calls += 1;
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Validate(tag, a, b);
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};
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}
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}
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class NamedParametersWithConversionsTest {
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static checkException(thunk) {
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bool threw = false;
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try {
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thunk();
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} catch (e) {
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threw = true;
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}
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Expect.isTrue(threw);
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}
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static testMethodCallSyntax(a) {
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a.foo('');
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a.foo('a', 111);
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a.foo('ab', 111, 222);
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a.foo2('a', a: 111);
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a.foo2('b', b: 222);
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a.foo2('ab', a: 111, b: 222);
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a.foo2('ab', b: 222, a: 111);
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Expect.equals(7, a.calls);
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checkException(() => a.foo()); // Too few arguments.
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checkException(() => a.foo('abc', 1, 2, 3)); // Too many arguments.
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checkException(() => a.foo2('c', c: 1)); // Bad name.
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checkException(() => a.foo2('c', a:111, c: 1)); // Bad name.
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Expect.equals(7, a.calls);
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}
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static testFunctionCallSyntax(a) {
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var f = a.foo;
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var f2 = a.foo2;
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f('');
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f('a', 111);
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f('ab', 111, 222);
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f2('a', a: 111);
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f2('b', b: 222);
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f2('ab', a: 111, b: 222);
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f2('ab', b: 222, a: 111);
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Expect.equals(7, a.calls);
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checkException(() => f()); // Too few arguments.
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checkException(() => f('abc', 1, 2, 3)); // Too many arguments.
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checkException(() => f2('c', c: 1)); // Bad name.
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checkException(() => f2('c', a: 111, c: 1)); // Bad name.
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Expect.equals(7, a.calls);
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}
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static testMain() {
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// 'Plain' calls where the method/field syntax matches the object.
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testMethodCallSyntax(new HasMethod());
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testFunctionCallSyntax(new HasField());
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// 'Conversion' calls where method/field call syntax does not match the
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// object.
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testMethodCallSyntax(new HasField());
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testFunctionCallSyntax(new HasMethod());
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}
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}
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main() {
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for (var i = 0; i < 20; i++) {
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NamedParametersWithConversionsTest.testMain();
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}
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}
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