blob: d8aea40ec240a93f5ff2d41735acb3c1846663a2 [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.
// @dart = 2.9
import "package:expect/expect.dart";
// Test cascades.
class A {
int x;
int y;
A(this.x, this.y);
A setX(int x) {
this.x = x;
return this;
}
void setY(int y) {
this.y = y;
}
Function swap() {
int tmp = x;
x = y;
y = tmp;
return this.swap;
}
void check(int x, int y) {
Expect.equals(x, this.x);
Expect.equals(y, this.y);
}
operator [](var i) {
if (i == 0) return x;
if (i == 1) return y;
if (i == "swap") return this.swap;
return null;
}
operator []=(int i, int value) {
if (i == 0) {
x = value;
} else if (i == 1) {
y = value;
}
}
/**
* A pseudo-keyword.
*/
import() {
x++;
}
}
main() {
A a = new A(1, 2);
a
..check(1, 2)
..swap()
..check(2, 1)
..x = 4
..y = 9
..check(4, 9)
..setX(10)
..check(10, 9)
..y = 5
..check(10, 5)
..swap()()()
..check(5, 10)
..[0] = 2
..check(2, 10)
..setX(10).setY(3)
..check(10, 3)
..setX(7)["swap"]()
..check(3, 7)
..import()
..check(4, 7)
..["swap"]()()()
..check(7, 4);
a.check(7, 4);
a..(42);
// ^
// [analyzer] SYNTACTIC_ERROR.MISSING_IDENTIFIER
// [cfe] Expected an identifier, but got ''.
// ^
// [cfe] Expected an identifier, but got '('.
a..37;
// ^^
// [analyzer] SYNTACTIC_ERROR.MISSING_IDENTIFIER
// [cfe] Expected an identifier, but got '37'.
a.."foo";
// ^^^^^
// [analyzer] SYNTACTIC_ERROR.MISSING_IDENTIFIER
// [cfe] Expected an identifier, but got '"foo"'.
}