| // 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. |
| |
| /** |
| * @fileoverview Check that flattening deep trees of cons strings does not |
| * cause stack overflows. |
| */ |
| |
| function newdeep(start, depth) { |
| var d = start; |
| for (var i = 0; i < depth; i++) { |
| d = d + "f"; |
| } |
| return d; |
| } |
| |
| var default_depth = 110000; |
| |
| var deep = newdeep("foo", default_depth); |
| assertEquals('f', deep[0]); |
| |
| var cmp1 = newdeep("a", default_depth); |
| var cmp2 = newdeep("b", default_depth); |
| |
| assertEquals(-1, cmp1.localeCompare(cmp2), "ab"); |
| |
| var cmp2empty = newdeep("c", default_depth); |
| assertTrue(cmp2empty.localeCompare("") > 0, "c"); |
| |
| var cmp3empty = newdeep("d", default_depth); |
| assertTrue("".localeCompare(cmp3empty) < 0), "d"; |
| |
| var slicer_depth = 1100; |
| |
| var slicer = newdeep("slice", slicer_depth); |
| |
| for (i = 0; i < slicer_depth + 4; i += 2) { |
| slicer = slicer.slice(1, -1); |
| } |
| |
| assertEquals("f", slicer[0]); |
| assertEquals(1, slicer.length); |