4a6d092fdf
TBR=mvstanton@chromium.org Review URL: https://codereview.chromium.org/713813002 Cr-Commit-Position: refs/heads/master@{#25233} git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@25233 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
84 lines
3.1 KiB
JavaScript
84 lines
3.1 KiB
JavaScript
// Copyright 2008 the V8 project authors. All rights reserved.
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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//
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following
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// disclaimer in the documentation and/or other materials provided
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// with the distribution.
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// * Neither the name of Google Inc. nor the names of its
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// contributors may be used to endorse or promote products derived
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// from this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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// Flags: --expose-debug-as debug
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// Get the Debug object exposed from the debug context global object.
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Debug = debug.Debug
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// Simple debug event handler which first time hit will perform 1000 steps and
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// second time hit will evaluate and store the value of "i". If requires that
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// the global property "state" is initially zero.
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var bp1, bp2;
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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 (state == 0) {
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exec_state.prepareStep(Debug.StepAction.StepIn, 1000);
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state = 1;
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} else if (state == 1) {
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result = exec_state.frame().evaluate("i").value();
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// Clear the break point on line 2 if set.
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if (bp2) {
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Debug.clearBreakPoint(bp2);
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}
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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 < 1000; 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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bp1 = Debug.setBreakPoint(f, 1);
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// Check that performing 1000 steps will make i 499.
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state = 0;
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result = -1;
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f();
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assertEquals(499, result);
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// Check that performing 1000 steps with a break point on the statement in the
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// for loop (line 2) will only make i 0 as a real break point breaks even when
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// multiple steps have been requested.
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state = 0;
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result = -1;
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bp2 = Debug.setBreakPoint(f, 3);
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f();
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assertEquals(0, result);
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// Get rid of the debug event listener.
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Debug.setListener(null);
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