v8/test/mjsunit/mirror-script.js
sgjesse@chromium.org d7a9f15bda Updated handling of the script mirror.
The script mirror is now created through MakeMirror like all other mirrors preserving handle identity. Added a couple of properties to the script mirror and added some more tests for the script mirror.
Review URL: http://codereview.chromium.org/21074

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1227 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2009-02-05 08:23:10 +00:00

93 lines
3.9 KiB
JavaScript

// 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.
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// 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,
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// Flags: --expose-debug-as debug
// Test the mirror object for scripts.
function testScriptMirror(f, file_name, file_lines, script_type, script_source) {
// Create mirror and JSON representation.
var mirror = debug.MakeMirror(f).script();
var serializer = debug.MakeMirrorSerializer();
var json = 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(script_type, mirror.scriptType());
if (script_source) {
assertEquals(script_source, mirror.source());
}
// Parse JSON representation and check.
var fromJSON = eval('(' + 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(script_type, fromJSON.scriptType);
}
// Test the script mirror for different functions.
testScriptMirror(function(){}, 'mirror-script.js', 92, 2);
testScriptMirror(Math.sin, 'native math.js', -1, 0);
testScriptMirror(eval('function(){}'), null, 1, 2, 'function(){}');
testScriptMirror(eval('function(){\n }'), null, 2, 2, 'function(){\n }');
// 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());