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Mozilla 2/Exceptions: Difference between revisions
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= Overview and Motivations = | = Overview and Motivations = | ||
The goal is to replace all <code>nsresult</code>-based error reporting and handling with C++ exceptions. | |||
The main benefit is that error-handing code will become simpler and more concise, making it easier to read and hack on Mozilla code. For example, <code>NS_ENSURE_RESULT</code> lines will disappear. Secondary benefits include: | |||
* Obviating [https://bugzilla.mozilla.org/show_bug.cgi?id=353144#c70 bug 353144], which is that <code>new</code> is already throwing exceptions, which are not being handled properly. | |||
* Enabling [[outparamdel]]. | |||
* Making it possible to propagate the same exception through both native code from C++ and JS runtimes, including Tamarin. | |||
* Possibly improving performance on the common case of no errors. | |||
= Risks and Assumptions = | = Risks and Assumptions = | ||