| // 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); |