v8/test/mjsunit/debug-stepout-to-builtin.js

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// Copyright 2009 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
var exception = null;
var state = 1;
var expected_source_line_text = null;
var expected_function_name = null;
// Simple debug event handler which first time will cause 'step out' action
// and than check that execution is paused inside function
// expected_function_name.
function listener(event, exec_state, event_data, data) {
try {
if (event == Debug.DebugEvent.Break) {
if (state == 1) {
exec_state.prepareStep(Debug.StepAction.StepOut, 2);
state = 2;
} else if (state == 2) {
assertEquals(expected_function_name, event_data.func().name());
assertEquals(expected_source_line_text,
event_data.sourceLineText());
state = 3;
}
}
} catch(e) {
exception = e;
}
};
// Add the debug event listener.
Debug.setListener(listener);
var obj = {key:10};
function replacer(key, value) {
if (key == 'key') {
debugger;
}
return value;
}
// Test step into function call from a function without local variables.
function testStepOutToBuiltIn() {
expected_function_name = 'testStepOutToBuiltIn';
expected_source_line_text = '} // expected line';
JSON.stringify(obj, replacer);
} // expected line
state = 1;
testStepOutToBuiltIn();
assertNull(exception);
assertEquals(3, state);
// Get rid of the debug event listener.
Debug.setListener(null);