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// Copyright 2008 the V8 project authors. All rights reserved.
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following
// disclaimer in the documentation and/or other materials provided
// with the distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived
// from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
// Flags: --expose-debug-as debug
// Get the Debug object exposed from the debug context global object.
Debug = debug.Debug
// Make sure that the backtrace command can be processed when the receiver is
// undefined.
listenerCalled = false;
exception = false;
function ParsedResponse(json) {
this.response_ = eval('(' + json + ')');
this.refs_ = [];
if (this.response_.refs) {
for (var i = 0; i < this.response_.refs.length; i++) {
this.refs_[this.response_.refs[i].handle] = this.response_.refs[i];
}
}
}
ParsedResponse.prototype.response = function() {
return this.response_;
}
ParsedResponse.prototype.body = function() {
return this.response_.body;
}
ParsedResponse.prototype.lookup = function(handle) {
return this.refs_[handle];
}
function listener(event, exec_state, event_data, data) {
try {
if (event == Debug.DebugEvent.Exception)
{
// The expected backtrace is
// 1: g
// 0: [anonymous]
// Get the debug command processor.
var dcp = exec_state.debugCommandProcessor();
// Get the backtrace.
var json;
json = '{"seq":0,"type":"request","command":"backtrace"}'
var response = new ParsedResponse(dcp.processDebugJSONRequest(json));
var backtrace = response.body();
assertEquals(2, backtrace.totalFrames);
assertEquals(2, backtrace.frames.length);
assertEquals("g", response.lookup(backtrace.frames[0].func.ref).name);
assertEquals("", response.lookup(backtrace.frames[1].func.ref).name);
listenerCalled = true;
}
} catch (e) {
exception = e
};
};
// Add the debug event listener.
Debug.setListener(listener);
// Call method on undefined.
function g() {
(void 0).f();
};
// Break on the exception to do a backtrace with undefined as receiver.
Debug.setBreakOnException(true);
try {
g();
} catch(e) {
// Ignore the exception "Cannot call method 'x' of undefined"
}
// Make sure that the debug event listener vas invoked.
assertTrue(listenerCalled, "listener not called");
assertFalse(exception, "exception in listener", exception)
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