blob: 01ae74b3a046bb63f8b4b6194903c2f704474fb6 [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 test program for testing arrays.
import "package:expect/expect.dart";
bar() => true;
tata() => 1.5;
// The type propagation in Dart2Js wrongly took the intersection of all incoming
// types in a loop-phi. In this case the back-edge brought type 'number' which,
// combined with 'integer' (i = 0) was narrowed to 'integer'. As a result no
// check was inserted for the list access.
foo(a) {
var i;
if (bar()) {
// t's desired type is conflicting. Once it is used as array receiver. And
// once as integer. The backward propagation thus can't decide.
// The forward declaration, however, will assign type num.
dynamic t = 0 + tata();
i = t;
if (!bar()) t[0];
} else {
i = 0;
for (int j = 0; j < 1; j++) {
// The phi, combining the two 'i's must reach the conclusion that i is of
// type num and therefore needs a check before accessing the array.
main() {
Expect.throws(() => foo([1, 2]));