v8/test/mjsunit/mirror-regexp.js

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// 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
// Test the mirror object for regular expression values
var all_attributes = debug.PropertyAttribute.ReadOnly |
debug.PropertyAttribute.DontEnum |
debug.PropertyAttribute.DontDelete;
var expected_attributes = {
'source': all_attributes,
'global': all_attributes,
'ignoreCase': all_attributes,
'multiline': all_attributes,
'lastIndex': debug.PropertyAttribute.DontEnum | debug.PropertyAttribute.DontDelete
};
function MirrorRefCache(json_refs) {
var tmp = eval('(' + json_refs + ')');
this.refs_ = [];
for (var i = 0; i < tmp.length; i++) {
this.refs_[tmp[i].handle] = tmp[i];
}
}
MirrorRefCache.prototype.lookup = function(handle) {
return this.refs_[handle];
}
function testRegExpMirror(r) {
// Create mirror and JSON representation.
var mirror = debug.MakeMirror(r);
var serializer = debug.MakeMirrorSerializer();
var json = JSON.stringify(serializer.serializeValue(mirror));
var refs = new MirrorRefCache(
JSON.stringify(serializer.serializeReferencedObjects()));
// Check the mirror hierachy.
assertTrue(mirror instanceof debug.Mirror);
assertTrue(mirror instanceof debug.ValueMirror);
assertTrue(mirror instanceof debug.ObjectMirror);
assertTrue(mirror instanceof debug.RegExpMirror);
// Check the mirror properties.
assertTrue(mirror.isRegExp());
assertEquals('regexp', mirror.type());
assertFalse(mirror.isPrimitive());
for (var p in expected_attributes) {
assertEquals(mirror.property(p).attributes(),
expected_attributes[p],
p + ' attributes');
}
// Test text representation
assertEquals('/' + r.source + '/', mirror.toText());
// Parse JSON representation and check.
var fromJSON = eval('(' + json + ')');
assertEquals('regexp', fromJSON.type);
assertEquals('RegExp', fromJSON.className);
for (var p in expected_attributes) {
for (var i = 0; i < fromJSON.properties.length; i++) {
if (fromJSON.properties[i].name == p) {
assertEquals(expected_attributes[p],
fromJSON.properties[i].attributes,
'Unexpected value for ' + p + ' attributes');
assertEquals(mirror.property(p).propertyType(),
fromJSON.properties[i].propertyType,
'Unexpected value for ' + p + ' propertyType');
assertEquals(mirror.property(p).value().handle(),
fromJSON.properties[i].ref,
'Unexpected handle for ' + p);
assertEquals(mirror.property(p).value().value(),
refs.lookup(fromJSON.properties[i].ref).value,
'Unexpected value for ' + p);
}
}
}
}
// Test Date values.
testRegExpMirror(/x/);
testRegExpMirror(/[abc]/);
testRegExpMirror(/[\r\n]/g);
testRegExpMirror(/a*b/gmi);