JezK
Edit File: debug-evaluate-locals.js
// 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 listenerComplete = false; exception = false; function h() { var a = 1; var b = 2; debugger; // Breakpoint. } function checkFrame0(frame) { // Frame 0 (h) has normal variables a and b. var count = frame.localCount(); assertEquals(2, count); for (var i = 0; i < count; ++i) { var name = frame.localName(i); var value = frame.localValue(i).value(); if (name == 'a') { assertEquals(1, value); } else { assertEquals('b', name); assertEquals(2, value); } } } function g() { var a = 3; eval("var b = 4;"); h(); } function checkFrame1(frame) { // Frame 1 (g) has normal variable a (and arguments). var count = frame.localCount(); assertEquals(2, count); for (var i = 0; i < count; ++i) { var name = frame.localName(i); var value = frame.localValue(i).value(); if (name == 'a') { assertEquals(3, value); } else { assertEquals('arguments', name); } } } function f() { var a = 5; var b = 0; with ({b:6}) { g(); } } function checkFrame2(frame) { // Frame 2 (f) has normal variables a and b (and arguments). var count = frame.localCount(); assertEquals(3, count); for (var i = 0; i < count; ++i) { var name = frame.localName(i); var value = frame.localValue(i).value(); if (name == 'a') { assertEquals(5, value); } else if (name == 'b') { assertEquals(0, value); } else { assertEquals('arguments', name); } } } function listener(event, exec_state, event_data, data) { try { if (event == Debug.DebugEvent.Break) { checkFrame0(exec_state.frame(0)); checkFrame1(exec_state.frame(1)); checkFrame2(exec_state.frame(2)); // Evaluating a and b on frames 0, 1 and 2 produces 1, 2, 3, 4, 5 and 6. assertEquals(1, exec_state.frame(0).evaluate('a').value()); assertEquals(2, exec_state.frame(0).evaluate('b').value()); assertEquals(3, exec_state.frame(1).evaluate('a').value()); assertEquals(4, exec_state.frame(1).evaluate('b').value()); assertEquals(5, exec_state.frame(2).evaluate('a').value()); assertEquals(6, exec_state.frame(2).evaluate('b').value()); // Indicate that all was processed. listenerComplete = true; } } catch (e) { exception = e }; }; // Add the debug event listener. Debug.setListener(listener); f(); // Make sure that the debug event listener vas invoked. assertTrue(listenerComplete); assertFalse(exception, "exception in listener")