JezK
Edit File: debug-conditional-breakpoints.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 // Simple debug event handler which just counts the number of break points hit. var break_point_hit_count; function listener(event, exec_state, event_data, data) { if (event == Debug.DebugEvent.Break) { break_point_hit_count++; } }; // Add the debug event listener. Debug.setListener(listener); // Test functions. count = 0; function f() {}; function g() {h(count++)}; function h(x) {var a=x; return a}; // Conditional breakpoint which syntax error. break_point_hit_count = 0; bp = Debug.setBreakPoint(f, 0, 0, '{{{'); f(); assertEquals(0, break_point_hit_count); assertEquals(0, Debug.findBreakPoint(bp, false).hit_count()); Debug.clearBreakPoint(bp); // Conditional breakpoint which evaluates to false. break_point_hit_count = 0; bp = Debug.setBreakPoint(f, 0, 0, 'false'); f(); assertEquals(0, break_point_hit_count); assertEquals(0, Debug.findBreakPoint(bp, false).hit_count()); Debug.clearBreakPoint(bp); // Conditional breakpoint which evaluates to true. break_point_hit_count = 0; bp = Debug.setBreakPoint(f, 0, 0, 'true'); f(); assertEquals(1, break_point_hit_count); assertEquals(1, Debug.findBreakPoint(bp, false).hit_count()); Debug.clearBreakPoint(bp); // Conditional breakpoint which different types of quotes. break_point_hit_count = 0; bp = Debug.setBreakPoint(f, 0, 0, '"a" == "a"'); f(); assertEquals(1, break_point_hit_count); assertEquals(1, Debug.findBreakPoint(bp, false).hit_count()); Debug.clearBreakPoint(bp); break_point_hit_count = 0; bp = Debug.setBreakPoint(f, 0, 0, "'a' == 'a'"); f(); assertEquals(1, break_point_hit_count); assertEquals(1, Debug.findBreakPoint(bp, false).hit_count()); Debug.clearBreakPoint(bp); // Changing condition. break_point_hit_count = 0; bp = Debug.setBreakPoint(f, 0, 0, '"ab".indexOf("b") > 0'); f(); assertEquals(1, break_point_hit_count); assertEquals(1, Debug.findBreakPoint(bp, false).hit_count()); Debug.changeBreakPointCondition(bp, 'Math.sin(Math.PI/2) > 1'); f(); assertEquals(1, break_point_hit_count); assertEquals(1, Debug.findBreakPoint(bp, false).hit_count()); Debug.changeBreakPointCondition(bp, '1==1'); f(); assertEquals(2, break_point_hit_count); assertEquals(2, Debug.findBreakPoint(bp, false).hit_count()); Debug.clearBreakPoint(bp); // Conditional breakpoint which checks global variable. break_point_hit_count = 0; bp = Debug.setBreakPoint(f, 0, 0, 'x==1'); f(); assertEquals(0, break_point_hit_count); assertEquals(0, Debug.findBreakPoint(bp, false).hit_count()); x=1; f(); assertEquals(1, break_point_hit_count); assertEquals(1, Debug.findBreakPoint(bp, false).hit_count()); Debug.clearBreakPoint(bp); // Conditional breakpoint which checks global variable. break_point_hit_count = 0; bp = Debug.setBreakPoint(g, 0, 0, 'count % 2 == 0'); for (var i = 0; i < 10; i++) { g(); } assertEquals(5, break_point_hit_count); assertEquals(5, Debug.findBreakPoint(bp, false).hit_count()); Debug.clearBreakPoint(bp); // Conditional breakpoint which checks a parameter. break_point_hit_count = 0; bp = Debug.setBreakPoint(h, 0, 0, 'x % 2 == 0'); for (var i = 0; i < 10; i++) { g(); } assertEquals(5, break_point_hit_count); assertEquals(5, Debug.findBreakPoint(bp, false).hit_count()); Debug.clearBreakPoint(bp); // Conditional breakpoint which checks a local variable. break_point_hit_count = 0; bp = Debug.setBreakPoint(h, 0, 22, 'a % 2 == 0'); for (var i = 0; i < 10; i++) { g(); } assertEquals(5, break_point_hit_count); assertEquals(5, Debug.findBreakPoint(bp, false).hit_count()); Debug.clearBreakPoint(bp); // Multiple conditional breakpoint which the same condition. break_point_hit_count = 0; bp1 = Debug.setBreakPoint(h, 0, 22, 'a % 2 == 0'); bp2 = Debug.setBreakPoint(h, 0, 22, 'a % 2 == 0'); for (var i = 0; i < 10; i++) { g(); } assertEquals(5, break_point_hit_count); assertEquals(5, Debug.findBreakPoint(bp1, false).hit_count()); assertEquals(5, Debug.findBreakPoint(bp2, false).hit_count()); Debug.clearBreakPoint(bp1); Debug.clearBreakPoint(bp2); // Multiple conditional breakpoint which different conditions. break_point_hit_count = 0; bp1 = Debug.setBreakPoint(h, 0, 22, 'a % 2 == 0'); bp2 = Debug.setBreakPoint(h, 0, 22, '(a + 1) % 2 == 0'); for (var i = 0; i < 10; i++) { g(); } assertEquals(10, break_point_hit_count); assertEquals(5, Debug.findBreakPoint(bp1, false).hit_count()); assertEquals(5, Debug.findBreakPoint(bp2, false).hit_count()); Debug.clearBreakPoint(bp1); Debug.clearBreakPoint(bp2);