Collect stack trace on stack overflow.

test/mjsunit/stack-traces-overflow.js

Index: test/mjsunit/stack-traces-overflow.js
diff --git a/test/mjsunit/stack-traces-overflow.js b/test/mjsunit/stack-traces-overflow.js
new file mode 100644
index 0000000000000000000000000000000000000000..7722e93bd26129f91c2dae44b8294fbb76806c19
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+++ b/test/mjsunit/stack-traces-overflow.js
@@ -0,0 +1,122 @@
+// Copyright 2012 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 rec1(a) { rec1(a+1); }
+function rec2(a) { rec3(a+1); }
+function rec3(a) { rec2(a+1); }
+
+// Test stack trace getter and setter.
+try {
+  rec1(0);
+} catch (e) {
+  assertTrue(e.stack.indexOf("rec1") > 0);
+  e.stack = "123";
+  assertEquals("123", e.stack);
+}
+
+// Test setter w/o calling the getter.
+try {
+  rec2(0);
+} catch (e) {
+  assertTrue(e.stack.indexOf("rec2") > 0);
+  assertTrue(e.stack.indexOf("rec3") > 0);
+  e.stack = "123";
+  assertEquals("123", e.stack);
+}
+
+// Test getter to make sure setter does not affect the boilerplate.
+try {
+  rec1(0);
+} catch (e) {
+  assertTrue(e.stack.indexOf("rec1") > 0);
+  assertInstanceof(e, RangeError);
+}
+
+
+// Check setting/getting stack property on the prototype chain.
+function testErrorPrototype(prototype) {
+  var object = {};
+  object.__proto__ = prototype;
+  object.stack = "123";
+  assertEquals("123", object.stack);
+  assertTrue("123" != prototype.stack);
+}
+
+try {
+  rec1(0);
+} catch (e) {
+  e.stack;
+  testErrorPrototype(e);
+}
+
+try {
+  rec1(0);
+} catch (e) {
+  testErrorPrototype(e);
+}
+
+try {
+  throw new Error();
+} catch (e) {
+  testErrorPrototype(e);
+}
+
+Error.stackTraceLimit = 3;
+try {
+  rec1(0);
+} catch (e) {
+  assertEquals(4, e.stack.split('\n').length);
+}
+
+Error.stackTraceLimit = 25.9;
+try {
+  rec1(0);
+} catch (e) {
+  assertEquals(26, e.stack.split('\n').length);
+}
+
+Error.stackTraceLimit = NaN;
+try {
+  rec1(0);
+} catch (e) {
+  assertEquals(1, e.stack.split('\n').length);
+}
+
+Error.stackTraceLimit = "not a number";
+try {
+  rec1(0);
+} catch (e) {
+  assertEquals(undefined, e.stack);
+}
+
+Error.stackTraceLimit = 3;
+Error = "";  // Overwrite Error in the global object.
+try {
+  rec1(0);
+} catch (e) {
+  assertEquals(4, e.stack.split('\n').length);
+}