JezK
Edit File: mirror-script.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 --allow-natives-syntax // Test the mirror object for scripts. function testScriptMirror(f, file_name, file_lines, type, compilation_type, source, eval_from_line) { // Create mirror and JSON representation. var mirror = debug.MakeMirror(f).script(); var serializer = debug.MakeMirrorSerializer(); var json = JSON.stringify(serializer.serializeValue(mirror)); // Check the mirror hierachy. assertTrue(mirror instanceof debug.Mirror); assertFalse(mirror instanceof debug.ValueMirror); assertTrue(mirror instanceof debug.ScriptMirror); // Check the mirror properties. assertTrue(mirror.isScript()); assertEquals('script', mirror.type()); var name = mirror.name(); if (name) { assertEquals(file_name, name.substring(name.length - file_name.length)); } else { assertTrue(file_name === null); } assertEquals(0, mirror.lineOffset()); assertEquals(0, mirror.columnOffset()); if (file_lines > 0) { assertEquals(file_lines, mirror.lineCount()); } assertEquals(type, mirror.scriptType()); assertEquals(compilation_type, mirror.compilationType(), "compilation type"); if (source) { assertEquals(source, mirror.source()); } if (eval_from_line) { assertEquals(eval_from_line, mirror.evalFromLocation().line); } // Parse JSON representation and check. var fromJSON = JSON.parse(json); assertEquals('script', fromJSON.type); name = fromJSON.name; if (name) { assertEquals(file_name, name.substring(name.length - file_name.length)); } else { assertTrue(file_name === null); } assertEquals(0, fromJSON.lineOffset); assertEquals(0, fromJSON.columnOffset); if (file_lines > 0) { assertEquals(file_lines, fromJSON.lineCount); } assertEquals(type, fromJSON.scriptType); assertEquals(compilation_type, fromJSON.compilationType); } // Test the script mirror for different functions. testScriptMirror(function(){}, 'mirror-script.js', 98, 2, 0); testScriptMirror(Math.sin, 'native math.js', -1, 0, 0); testScriptMirror(eval('(function(){})'), null, 1, 2, 1, '(function(){})', 87); testScriptMirror(eval('(function(){\n })'), null, 2, 2, 1, '(function(){\n })', 88); // Test taking slices of source. var mirror = debug.MakeMirror(eval('(function(){\n 1;\n})')).script(); assertEquals('(function(){\n', mirror.sourceSlice(0, 1).sourceText()); assertEquals(' 1;\n', mirror.sourceSlice(1, 2).sourceText()); assertEquals('})', mirror.sourceSlice(2, 3).sourceText()); assertEquals('(function(){\n 1;\n', mirror.sourceSlice(0, 2).sourceText()); assertEquals(' 1;\n})', mirror.sourceSlice(1, 3).sourceText()); assertEquals('(function(){\n 1;\n})', mirror.sourceSlice(0, 3).sourceText());