Correct propagation of exceptions from setters.

test/mjsunit/regress/regress-1105.js

Index: test/mjsunit/regress/regress-1105.js
diff --git a/test/mjsunit/regress/regress-1105.js b/test/mjsunit/regress/regress-1105.js
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+++ b/test/mjsunit/regress/regress-1105.js
@@ -0,0 +1,38 @@
+// Copyright 2011 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.
+
+// This should properly catch the exception from the setter triggered
+// by the loaded file, and it should not fail an assertion in debug mode.
+
+this.eval('__defineSetter__("x",function(){throw 42;});')

[antonm, 2011/02/08 13:33:01]

why eval here?  Couldn't it be plain this.__defineSetter__ ?

[Lasse Reichstein, 2011/02/08 13:38:57]

Ah, that works too.
This was a blind copy of the original example, using eval instead of load.
Thanks.

+
+try {
+   this.eval('function x(){}');
+   assertUnreachable();
+} catch (e) {
+   assertEquals(42, e);
+}