tests/language/const_functions/const_functions_while_statements_test.dart

// Copyright (c) 2021, 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.

// Tests while statements for const functions.

// SharedOptions=--enable-experiment=const-functions

import "package:expect/expect.dart";

const var1 = fn(2);
//           ^^^^^
// [analyzer] COMPILE_TIME_ERROR.CONST_INITIALIZED_WITH_NON_CONSTANT_VALUE
const var2 = fn(3);
//           ^^^^^
// [analyzer] COMPILE_TIME_ERROR.CONST_INITIALIZED_WITH_NON_CONSTANT_VALUE
int fn(int a) {
  int b = a;
  int i = 0;
  while (i < 2) {
    b += a;
    i++;
  }
  return b;
}

const var3 = fn1(2);
//           ^^^^^^
// [analyzer] COMPILE_TIME_ERROR.CONST_INITIALIZED_WITH_NON_CONSTANT_VALUE
const var4 = fn1(3);
//           ^^^^^^
// [analyzer] COMPILE_TIME_ERROR.CONST_INITIALIZED_WITH_NON_CONSTANT_VALUE
int fn1(int a) {
  int b = a;
  while (true) {
    b *= 3;
    if (b > 10) return b;
  }
}

void main() {
  Expect.equals(var1, 6);
  Expect.equals(var2, 9);
  Expect.equals(var3, 18);
  Expect.equals(var4, 27);
}