Revert "RegExp: Add support for the ES6-proposed sticky flag"

test/mjsunit/harmony/regexp-sticky.js

-// Copyright 2014 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: --harmony-regexps
-
-var re = /foo.bar/;
-
-assertTrue(!!"foo*bar".match(re));
-assertTrue(!!"..foo*bar".match(re));
-
-var plain = /foobar/;
-
-assertTrue(!!"foobar".match(plain));
-assertTrue(!!"..foobar".match(plain));
-
-var sticky = /foo.bar/y;
-
-assertTrue(!!"foo*bar".match(sticky));
-assertEquals(0, sticky.lastIndex);
-assertFalse(!!"..foo*bar".match(sticky));
-
-var stickyplain = /foobar/y;
-
-assertTrue(!!"foobar".match(stickyplain));
-assertEquals(0, stickyplain.lastIndex);
-assertFalse(!!"..foobar".match(stickyplain));
-
-var global = /foo.bar/g;
-
-assertTrue(global.test("foo*bar"));
-assertFalse(global.test("..foo*bar"));
-global.lastIndex = 0;
-assertTrue(global.test("..foo*bar"));
-
-var plainglobal = /foobar/g;
-
-assertTrue(plainglobal.test("foobar"));
-assertFalse(plainglobal.test("foobar"));
-plainglobal.lastIndex = 0;
-assertTrue(plainglobal.test("foobar"));
-
-var stickyglobal = /foo.bar/gy;
-
-assertTrue(stickyglobal.test("foo*bar"));
-assertEquals(7, stickyglobal.lastIndex);
-assertFalse(stickyglobal.test("..foo*bar"));
-stickyglobal.lastIndex = 0;
-assertFalse(stickyglobal.test("..foo*bar"));
-stickyglobal.lastIndex = 2;
-assertTrue(stickyglobal.test("..foo*bar"));
-assertEquals(9, stickyglobal.lastIndex);
-
-var stickyplainglobal = /foobar/yg;
-assertTrue(stickyplainglobal.sticky);
-stickyplainglobal.sticky = false;
-
-assertTrue(stickyplainglobal.test("foobar"));
-assertEquals(6, stickyplainglobal.lastIndex);
-assertFalse(stickyplainglobal.test("..foobar"));
-stickyplainglobal.lastIndex = 0;
-assertFalse(stickyplainglobal.test("..foobar"));
-stickyplainglobal.lastIndex = 2;
-assertTrue(stickyplainglobal.test("..foobar"));
-assertEquals(8, stickyplainglobal.lastIndex);
-
-assertEquals("/foo.bar/gy", "" + stickyglobal);
-assertEquals("/foo.bar/g", "" + global);
-
-assertTrue(stickyglobal.sticky);
-stickyglobal.sticky = false;
-assertTrue(stickyglobal.sticky);
-
-var stickyglobal2 = new RegExp("foo.bar", "gy");
-assertTrue(stickyglobal2.test("foo*bar"));
-assertEquals(7, stickyglobal2.lastIndex);
-assertFalse(stickyglobal2.test("..foo*bar"));
-stickyglobal2.lastIndex = 0;
-assertFalse(stickyglobal2.test("..foo*bar"));
-stickyglobal2.lastIndex = 2;
-assertTrue(stickyglobal2.test("..foo*bar"));
-assertEquals(9, stickyglobal2.lastIndex);
-
-assertEquals("/foo.bar/gy", "" + stickyglobal2);
-
-assertTrue(stickyglobal2.sticky);
-stickyglobal2.sticky = false;
-assertTrue(stickyglobal2.sticky);
-
-sticky.lastIndex = -1; // Causes sticky regexp to fail fast
-assertFalse(sticky.test("..foo.bar"));
-assertEquals(0, sticky.lastIndex);
-
-sticky.lastIndex = -1; // Causes sticky regexp to fail fast
-assertFalse(!!sticky.exec("..foo.bar"));
-assertEquals(0, sticky.lastIndex);
-
-// ES6 draft says: Even when the y flag is used with a pattern, ^ always
-// matches only at the beginning of Input, or (if Multiline is true) at the
-// beginning of a line.
-var hat = /^foo/y;
-hat.lastIndex = 2;
-assertFalse(hat.test("..foo"));
-
-var mhat = /^foo/my;
-mhat.lastIndex = 2;
-assertFalse(mhat.test("..foo"));
-mhat.lastIndex = 2;
-assertTrue(mhat.test(".\nfoo"));