v8/test/debugger/debug/debug-step-into-json.js

36 lines
950 B
JavaScript
Raw Normal View History

// Copyright 2015 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.
Debug = debug.Debug
var exception = null;
var break_count = 0;
function listener(event, exec_state, event_data, data) {
if (event != Debug.DebugEvent.Break) return;
try {
print(event_data.sourceLineText());
assertTrue(
event_data.sourceLineText().indexOf(`Break ${break_count++}.`) > 0);
exec_state.prepareStep(Debug.StepAction.StepIn);
} catch (e) {
exception = e;
}
};
function toJsonCallback() {
return "x"; // Break 2.
} // Break 3.
var o = {};
o.toJSON = toJsonCallback;
Debug.setListener(listener);
debugger; // Break 0.
var result = JSON.stringify(o); // Break 1.
Debug.setListener(null); // Break 4.
assertEquals('"x"', result);
assertNull(exception);