| // Copyright 2014 the V8 project authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| // Flags: --allow-natives-syntax --expose-debug-as debug |
| |
| Debug = debug.Debug |
| var exception = null; |
| var break_count = 0; |
| var expected_breaks = -1; |
| |
| function listener(event, exec_state, event_data, data) { |
| try { |
| if (event == Debug.DebugEvent.Break) { |
| assertTrue(exec_state.frameCount() != 0, "FAIL: Empty stack trace"); |
| if (!break_count) { |
| // Count number of expected breakpoints in this source file. |
| var source_text = exec_state.frame(0).func().script().source(); |
| expected_breaks = source_text.match(/\/\/\s*Break\s+\d+\./g).length; |
| print("Expected breaks: " + expected_breaks); |
| } |
| var source = exec_state.frame(0).sourceLineText(); |
| print("paused at: " + source); |
| assertTrue(source.indexOf("// Break " + break_count + ".") > 0, |
| "Unexpected pause at: " + source + "\n" + |
| "Expected: // Break " + break_count + "."); |
| if (source.indexOf("StepOver.") !== -1) { |
| exec_state.prepareStep(Debug.StepAction.StepNext); |
| } else { |
| exec_state.prepareStep(Debug.StepAction.StepIn); |
| } |
| ++break_count; |
| } |
| } catch (e) { |
| exception = e; |
| print(e, e.stack); |
| } |
| }; |
| |
| Debug.setListener(listener); |
| |
| Promise.resolve(42) |
| .then(promise1) |
| .then(Object) // Should skip stepping into native. |
| .then(Boolean) // Should skip stepping into native. |
| .then(promise2) |
| .catch(promise3) |
| .then(promise4) |
| .catch(function(e) { |
| %AbortJS("FAIL: uncaught exception " + e); |
| }); |
| |
| function promise1() { |
| debugger; // Break 0. |
| return exception || 1; // Break 1. |
| } // Break 2. |
| |
| function promise2() { |
| throw new Error; // Break 3. |
| } |
| |
| function promise3() { |
| return break_count; // Break 4. |
| } // Break 5. |
| |
| function promise4() { |
| finalize(); // Break 6. StepOver. |
| return 0; // Break 7. |
| } // Break 8. StepOver. |
| |
| function finalize() { |
| Promise.resolve().then(function() { |
| if (expected_breaks !== break_count) { |
| %AbortJS("FAIL: expected <" + expected_breaks + "> breaks instead of <" + |
| break_count + ">"); |
| } |
| if (exception !== null) { |
| %AbortJS("FAIL: exception: " + exception); |
| } |
| }); |
| } |