| // 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. |
| |
| // VMOptions=--optimization_counter_threshold=10 |
| |
| import "package:expect/expect.dart"; |
| |
| // This test tries to verify that we produce the correct stack trace when |
| // throwing exceptions even when functions are inlined. |
| // The test invokes a bunch of functions and then does a throw. There is a |
| // catch at the outer function which uses the stack trace produced to return |
| // a string. The test then verifies that the stack trace contains each |
| // method in the invocation chain. The test is run during warmup to ensure |
| // unoptimized code produces the correct result and is then run |
| // in a loop to ensure optimization kicks in and some inlining is done. |
| // Note: it appears that functions which have a throw are not inlined (func4) |
| // and functions that have try/catch in them are not optimized (func1). |
| // func2 is not inlined as func1 has not been optimized. |
| |
| class Test { |
| String func1(var k) { |
| try { |
| for (var i = 0; i <= 50; i++) { |
| func2(i * k); |
| } |
| return ""; |
| } catch (e, stacktrace) { |
| var result = e + stacktrace.toString(); |
| return result; |
| } |
| } |
| int func2(var i) { |
| var result = 0; |
| for (var k = 0; k <= 10; k++) { |
| result += func3(i + k); |
| } |
| return result; |
| } |
| int func3(var i) { |
| var result = 0; |
| for (var l = 0; l <= 1; l++) { |
| result += func4(i + l); |
| } |
| return result; |
| } |
| int func4(var i) { |
| var result = 0; |
| for (var j = 0; j <= 10; j++) { |
| result += func5(i + j); |
| } |
| return result; |
| } |
| int func5(var i) { |
| if (i >= 520) throw "show me inlined functions"; |
| return i; |
| } |
| } |
| |
| main() { |
| var x = new Test(); |
| var result = x.func1(100000); |
| Expect.isTrue(result.contains("show me inlined functions")); |
| Expect.isTrue(result.contains("Test.func1")); |
| Expect.isTrue(result.contains("Test.func2")); |
| Expect.isTrue(result.contains("Test.func3")); |
| Expect.isTrue(result.contains("Test.func4")); |
| Expect.isTrue(result.contains("Test.func")); |
| for (var i = 0; i <= 10; i++) { |
| result = x.func1(i); |
| } |
| Expect.isTrue(result.contains("show me inlined functions")); |
| Expect.isTrue(result.contains("Test.func1")); |
| Expect.isTrue(result.contains("Test.func2")); |
| Expect.isTrue(result.contains("Test.func3")); |
| Expect.isTrue(result.contains("Test.func4")); |
| Expect.isTrue(result.contains("Test.func5")); |
| } |