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Diffstat (limited to 'deps/v8/test/mjsunit/harmony/async-debug-step-abort-at-break.js')
-rw-r--r-- | deps/v8/test/mjsunit/harmony/async-debug-step-abort-at-break.js | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/deps/v8/test/mjsunit/harmony/async-debug-step-abort-at-break.js b/deps/v8/test/mjsunit/harmony/async-debug-step-abort-at-break.js new file mode 100644 index 0000000000..be1f8056a8 --- /dev/null +++ b/deps/v8/test/mjsunit/harmony/async-debug-step-abort-at-break.js @@ -0,0 +1,55 @@ +// 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 StepOut + function(res, rej) { + late_resolve = res; + } + ); +} + +async function f() { + var a = 1; + debugger; // B0 StepNext + a += // B1 StepNext + await // B4 StepNext + g(); // B2 StepIn + return a; +} + +f(); + +// Starting a new step action at an intermediate break point +// means that we will abort the current async step. +debugger; // B5 StepNext + +late_resolve(3); // B6 Continue + +%RunMicrotasks(); + +assertEquals(7, step_count); |