v8/test/debugger/debug/es6/debug-step-into-class-extends.js

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// 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.
'use strict';
var Debug = debug.Debug
var done = false;
var stepCount = 0;
function listener(event, execState, eventData, data) {
if (event == Debug.DebugEvent.Break) {
if (!done) {
execState.prepareStep(Debug.StepAction.StepIn);
var s = execState.frame().sourceLineText();
assertTrue(s.indexOf('// ' + stepCount + '.') !== -1);
stepCount++;
}
}
};
Debug.setListener(listener);
function GetBase() {
var x = 1; // 1.
var y = 2; // 2.
done = true; // 3.
return null;
}
function f() {
class Derived extends GetBase() {} // 0.
}
var bp = Debug.setBreakPoint(f, 0);
f();
assertEquals(4, stepCount);
Debug.setListener(null);