blob: 364f2f4bef8fa4eea5294e0d9aff4dafb753fe9e [file] [log] [blame]
// Copyright (c) 2012, 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 "package:expect/expect.dart";
// Testing Function.apply calls correctly.
// This test is not testing error handling, only that correct parameters
// cause a correct call.
int test0() => 42;
int test0a({required int a}) => 37 + a;
int test1(int i) => i + 1;
int test1a(int i, {required int a}) => i + a;
int test2(int i, int j) => i + j;
int test2a(int i, int j, {required int a}) => i + j + a;
class C {
int x = 10;
int foo(int y) => this.x + y;
}
class Callable {
int call(int x, int y) => x + y;
}
@pragma('dart2js:noInline')
@pragma('dart2js:assumeDynamic')
confuse(x) => x;
main() {
testMap(res, func, map) {
Expect.equals(res, Function.apply(func, null, map));
Expect.equals(res, Function.apply(func, [], map));
}
testList(res, func, list) {
Expect.equals(res, Function.apply(func, list));
Expect.equals(res, Function.apply(func, list, null));
Expect.equals(res, Function.apply(func, list, new Map<Symbol, dynamic>()));
}
testListTyped(res, Function func, list) => testList(res, func, list);
test(res, func, list, map) {
Expect.equals(res, Function.apply(func, list, map));
}
testList(42, test0, null);
testList(42, test0, []);
testMap(42, test0a, {#a: 5});
testList(42, test1, [41]);
test(42, test1a, [20], {#a: 22});
testList(42, test2, [20, 22]);
test(42, test2a, [10, 15], {#a: 17});
// Test that "this" is correct when calling closurized functions.
var cfoo = new C().foo;
testList(42, cfoo, [32]);
// Test that apply works even with a different name.
var app = confuse(Function.apply);
Expect.equals(42, app(test2, [22, 20]));
// Test that apply can itself be applied.
Expect.equals(
42,
Function.apply(Function.apply, [
test2,
[17, 25]
]));
// Test that apply works on callable objects when it is passed to a method
// that expects Function (and not dynamic).
Expect.throws(() => testList(42, new Callable(), [13, 29])); //# 01: ok
testListTyped(42, new Callable(), [13, 29]); //# 02: ok
}