| // Copyright 2016 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: --expose-debug-as debug --allow-natives-syntax --harmony-async-await |
| |
| var Debug = debug.Debug; |
| var step_count = 0; |
| |
| function listener(event, execState, eventData, data) { |
| if (event != Debug.DebugEvent.Break) return; |
| try { |
| var line = execState.frame(0).sourceLineText(); |
| print(line); |
| var [match, expected_count, step] = /\/\/ B(\d) (\w+)$/.exec(line); |
| assertEquals(step_count++, parseInt(expected_count)); |
| if (step != "Continue") execState.prepareStep(Debug.StepAction[step]); |
| } catch (e) { |
| print(e, e.stack); |
| quit(1); |
| } |
| } |
| |
| Debug.setListener(listener); |
| |
| var late_resolve; |
| |
| function g() { |
| return new Promise( // B3 StepIn |
| function(res, rej) { |
| late_resolve = res; // B4 StepIn |
| } // B5 StepIn |
| ); |
| } // B6 StepIn |
| |
| async function f() { |
| var a = 1; |
| debugger; // B0 StepNext |
| a += // B1 StepIn |
| await // B7 StepIn |
| g(); // B2 StepIn |
| return a; // B8 StepIn |
| } // B9 Continue |
| |
| f().then(value => assertEquals(4, value)); |
| |
| late_resolve(3); |
| |
| %RunMicrotasks(); |
| |
| assertEquals(10, step_count); |