[Webkit-unassigned] [Bug 171776] New: Introduce ExceptionScope::assertNoException() and releaseAssertNoException().

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=171776

            Bug ID: 171776
           Summary: Introduce ExceptionScope::assertNoException() and
                    releaseAssertNoException().
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: JavaScriptCore
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: mark.lam at apple.com

Instead of ASSERT(!scope.exception()), we can now do scope.assertNoException().  Ditto for RELEASE_ASSERT and scope.releaseAssertNoException().  

The advantage of using ExceptionScope::assertNoException() and releaseAssertNoException() is that if the assertion fails, these utility functions will print the stack trace for where the unexpected exception is detected as well as where the unexpected exception was thrown from.  This makes it much easier to debug the source of unhandled exceptions.

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