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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 --nocrankshaft
// Get the Debug object exposed from the debug context global object.
Debug = debug.Debug
function DebuggerStatement() {
debugger; /*pause*/
}
function TestCase(fun, frame_number) {
var exception = false;
var codeSnippet = undefined;
var resultPositions = undefined;
var step = 0;
function listener(event, exec_state, event_data, data) {
try {
if (event == Debug.DebugEvent.Break ||
event == Debug.DebugEvent.Exception) {
if (step++ > 0) return;
assertHasLineMark(/pause/, exec_state.frame(0));
assertHasLineMark(/positions/, exec_state.frame(frame_number));
var frame = exec_state.frame(frame_number);
codeSnippet = frame.sourceLineText();
resultPositions = frame.stepInPositions();
}
} catch (e) {
exception = e
}
function assertHasLineMark(mark, frame) {
var line = frame.sourceLineText();
if (!mark.exec(frame.sourceLineText())) {
throw new Error("Line " + line + " should contain mark " + mark);
}
}
}
Debug.setListener(listener);
fun();
Debug.setListener(null);
assertTrue(!exception, exception);
var expectedPositions = {};
var markPattern = new RegExp("/\\*#\\*/", "g");
var matchResult;
while ( (matchResult = markPattern.exec(codeSnippet)) ) {
expectedPositions[matchResult.index] = true;
}
print(codeSnippet);
var decoratedResult = codeSnippet;
function replaceStringRange(s, pos, substitute) {
return s.substring(0, pos) + substitute +
s.substring(pos + substitute.length);
}
var markLength = 5;
var unexpectedPositionFound = false;
for (var i = 0; i < resultPositions.length; i++) {
var col = resultPositions[i].position.column - markLength;
if (expectedPositions[col]) {
delete expectedPositions[col];
decoratedResult = replaceStringRange(decoratedResult, col, "*YES*");
} else {
decoratedResult = replaceStringRange(decoratedResult, col, "!BAD!");
unexpectedPositionFound = true;
}
}
print(decoratedResult);
for (var n in expectedPositions) {
assertTrue(false, "Some positions are not reported: " + decoratedResult);
break;
}
assertFalse(unexpectedPositionFound, "Found unexpected position: " +
decoratedResult);
}
function TestCaseWithDebugger(fun) {
TestCase(fun, 1);
}
function TestCaseWithBreakpoint(fun, line_number, frame_number) {
var breakpointId = Debug.setBreakPoint(fun, line_number);
TestCase(fun, frame_number);
Debug.clearBreakPoint(breakpointId);
}
function TestCaseWithException(fun, frame_number) {
Debug.setBreakOnException();
TestCase(fun, frame_number);
Debug.clearBreakOnException();
}
// Test cases.
// Step in position, when the function call that we are standing at is already
// being executed.
var fun = function() {
function g(p) {
throw String(p); /*pause*/
}
try {
var res = [ g(1), /*#*/g(2) ]; /*positions*/
} catch (e) {
}
};
TestCaseWithBreakpoint(fun, 2, 1);
TestCaseWithException(fun, 1);
// Step in position, when the function call that we are standing at is raising
// an exception.
var fun = function() {
var o = {
g: function(p) {
throw p;
}
};
try {
var res = [ /*#*/f(1), /*#*/g(2) ]; /*pause, positions*/
} catch (e) {
}
};
TestCaseWithException(fun, 0);
// Step-in position, when already paused almost on the first call site.
var fun = function() {
function g(p) {
throw p;
}
try {
var res = [ /*#*/g(Math.rand), /*#*/g(2) ]; /*pause, positions*/
} catch (e) {
}
};
TestCaseWithBreakpoint(fun, 5, 0);
// Step-in position, when already paused on the first call site.
var fun = function() {
function g() {
throw "Debug";
}
try {
var res = [ /*#*/g(), /*#*/g() ]; /*pause, positions*/
} catch (e) {
}
};
TestCaseWithBreakpoint(fun, 5, 0);
// Method calls.
var fun = function() {
var data = {
a: function() {}
};
var res = [ DebuggerStatement(), data./*#*/a(), data[/*#*/String("a")]/*#*/(), data["a"]/*#*/(), data.a, data["a"] ]; /*positions*/
};
TestCaseWithDebugger(fun);
// Function call on a value.
var fun = function() {
function g(p) {
return g;
}
var res = [ DebuggerStatement(), /*#*/g(2), /*#*/g(2)/*#*/(3), /*#*/g(0)/*#*/(0)/*#*/(g) ]; /*positions*/
};
TestCaseWithDebugger(fun);
// Local function call, closure function call,
// local function construction call.
var fun = (function(p) {
return function() {
function f(a, b) {
}
var res = /*#*/f(DebuggerStatement(), /*#*/p(/*#*/new f())); /*positions*/
};
})(Object);
TestCaseWithDebugger(fun);
// Global function, global object construction, calls before pause point.
var fun = (function(p) {
return function() {
var res = [ Math.abs(new Object()), DebuggerStatement(), Math./*#*/abs(4), /*#*/new Object()./*#*/toString() ]; /*positions*/
};
})(Object);
TestCaseWithDebugger(fun);
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