92 lines
3.1 KiB
JavaScript
92 lines
3.1 KiB
JavaScript
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// Copyright 2008 Google Inc. 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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// Make sure that the backtrace command can be processed when the receiver is
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// undefined.
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listenerCalled = false;
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exception = false;
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function safeEval(code) {
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try {
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return eval('(' + code + ')');
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} catch (e) {
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return undefined;
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}
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}
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function listener(event, exec_state, event_data, data) {
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try {
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if (event == Debug.DebugEvent.Exception)
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{
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// The expected backtrace is
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// 1: g
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// 0: [anonymous]
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// Get the debug command processor.
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var dcp = exec_state.debugCommandProcessor();
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// Get the backtrace.
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var json;
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json = '{"seq":0,"type":"request","command":"backtrace"}'
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var backtrace = safeEval(dcp.processDebugJSONRequest(json)).body;
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assertEquals(2, backtrace.totalFrames);
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assertEquals(2, backtrace.frames.length);
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assertEquals("g", backtrace.frames[0].func.name);
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assertEquals("", backtrace.frames[1].func.name);
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listenerCalled = true;
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}
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} catch (e) {
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exception = e
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};
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};
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// Add the debug event listener.
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Debug.addListener(listener);
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// Call method on undefined.
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function g() {
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(void 0).f();
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};
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// Break on the exception to do a backtrace with undefined as receiver.
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Debug.setBreakOnException(true);
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try {
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g();
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} catch(e) {
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// Ignore the exception "Cannot call method 'x' of undefined"
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}
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// Make sure that the debug event listener vas invoked.
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assertTrue(listenerCalled, "listener not called");
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assertFalse(exception, "exception in listener", exception)
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