JezK
Edit File: debug-stepin-call-function-stub.js
// 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 = 0; var expected_function_name = null; var expected_source_line_text = null; var expected_caller_source_line = null; var step_in_count = 2; // Simple debug event handler which first time will cause 'step in' action // to get into g.call and than check that execution is pauesed inside // function 'g'. function listener(event, exec_state, event_data, data) { try { if (event == Debug.DebugEvent.Break) { if (state == 0) { // Step into f(). exec_state.prepareStep(Debug.StepAction.StepIn, step_in_count); state = 2; } else if (state == 2) { assertEquals(expected_source_line_text, event_data.sourceLineText()); assertEquals(expected_function_name, event_data.func().name()); state = 3; } } } catch(e) { exception = e; } }; // Add the debug event listener. Debug.setListener(listener); function g() { return "s"; // expected line } function testFunction() { var f = g; var s = 1 +f(10); } function g2() { return "s2"; // expected line } function testFunction2() { var f = g2; var s = 1 +f(10, 20); } // Run three times. First time the function will be compiled lazily, // second time cached version will be used. for (var i = 0; i < 3; i++) { state = 0; expected_function_name = 'g'; expected_source_line_text = ' return "s"; // expected line'; step_in_count = 2; // Set a break point and call to invoke the debug event listener. Debug.setBreakPoint(testFunction, 1, 0); testFunction(); assertNull(exception); assertEquals(3, state); } // Test stepping into function call when a breakpoint is set at the place // of call. Use different pair of functions so that g2 is compiled lazily. // Run twice: first time function will be compiled lazily, second time // cached version will be used. for (var i = 0; i < 3; i++) { state = 0; expected_function_name = 'g2'; expected_source_line_text = ' return "s2"; // expected line'; step_in_count = 1; // Set a break point and call to invoke the debug event listener. Debug.setBreakPoint(testFunction2, 2, 0); testFunction2(); assertNull(exception); assertEquals(3, state); } // Get rid of the debug event listener. Debug.setListener(null);