Added special case for atomic regular expressions.

test/mjsunit/regexp-indexof.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.
+
+function CheckMatch(re, str, matches) {
+  assertEquals(matches.length > 0, re.test(str));
+  var result = str.match(re);
+  if (matches.length > 0) {
+    assertEquals(matches.length, result.length);
+    for (idx in matches) {
+      var from = matches[idx][0];
+      var length = matches[idx][1];
+      var expected = str.substr(from, length);
+      assertEquals(expected, result[idx]);
+    }
+    assertEquals(expected, RegExp.lastMatch);
+    assertEquals(str.substr(0, from), RegExp.leftContext);
+    assertEquals(str.substr(from + length), RegExp.rightContext);
+  } else {
+    assertTrue(result === null);
+  }
+}
+
+CheckMatch(/abc/, "xxxabcxxxabcxxx", [[3, 3]]);
+CheckMatch(/abc/g, "xxxabcxxxabcxxx", [[3, 3], [9, 3]]);
+CheckMatch(/abc/, "xxxabababcxxxabcxxx", [[7, 3]]);
+CheckMatch(/abc/g, "abcabcabc", [[0, 3], [3, 3], [6, 3]]);
+CheckMatch(/aba/g, "ababababa", [[0, 3], [4, 3]]);
+CheckMatch(/foo/g, "ofooofoooofofooofo", [[1, 3], [5, 3], [12, 3]]);
+CheckMatch(/foobarbaz/, "xx", []);
+CheckMatch(new RegExp(""), "xxx", [[0, 0]]);
+CheckMatch(/abc/, "abababa", []);
+
+assertEquals("xxxdefxxxdefxxx", "xxxabcxxxabcxxx".replace(/abc/g, "def"));
+assertEquals("o-o-oofo-ofo", "ofooofoooofofooofo".replace(/foo/g, "-"));
+assertEquals("deded", "deded".replace(/x/g, "-"));
+assertEquals("-a-b-c-d-e-f-", "abcdef".replace(new RegExp("", "g"), "-"));