44 lines
1.1 KiB
JavaScript
44 lines
1.1 KiB
JavaScript
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// Copyright 2016 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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Debug = new DebugWrapper();
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Debug.enable();
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// Simple debug event handler which performs 100 steps and then retrieves
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// the resulting value of "i" in f().
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function listener(event, exec_state, event_data, data) {
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if (event == Debug.DebugEvent.Break) {
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if (step_count > 0) {
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Debug.stepInto();
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step_count--;
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} else {
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const frameid = exec_state.frames[0].callFrameId;
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result = Debug.evaluate(frameid, "i").value;
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}
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}
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};
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// Add the debug event listener.
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Debug.setListener(listener);
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// Test debug event for break point.
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function f() {
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var i; // Line 1.
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for (i = 0; i < 100; i++) { // Line 2.
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x = 1; // Line 3.
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}
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};
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// Set a breakpoint on the for statement (line 1).
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Debug.setBreakPoint(f, 1);
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// Check that performing 100 steps will make i 33.
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let step_count = 100;
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let result = -1;
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f();
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assertEquals(33, result);
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