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Edit File: mirror-regexp.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
// 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(expected_attributes[p],
                 mirror.property(p).attributes(),
                 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);

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