Exception handling

[Rodrigo Bonifacio]

Dear all, analysing the source code of Google Chrome, I could figure out that the exception handling constructs of c++ is not frequently used in the project. Is there any recommendation for not using try-catch statements for handling errors in the project?

All the best,

Rodrigo.

[Torne (Richard Coles)]

We build without exception support; any code that does mention try-catch must be in a third party project in a part of the code that we don't use. You can't use exceptions in Chromium; it's not a recommendation, it just doesn't work :)

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[Torne (Richard Coles)]

On 31 January 2014 17:54, Rodrigo <rbonif...@gmail.com> wrote:

Hi Richard, is there any reason for avoiding try-catch and building Chromium without EH support?

Well, there's always a reason :)

I can't tell you specifically the reasons why the Chromium project decided not to use exceptions at the beginning as I wasn't there, but the general Google C++ coding standard forbids it because much pre-existing Google code isn't exception-safe and therefore using exceptions in a new piece of code makes it hard to interoperate. Exceptions in C++ also impose a cost in performance and binary size to implement RTTI, store stack unrolling info, etc.

 

Thank you for your response.

Sent from my iPad

[Rodrigo]

Hi Richard, is there any reason for avoiding try-catch and building Chromium without EH support?

Thank you for your response.

Sent from my iPad

On 31/01/2014, at 14:40, "Torne (Richard Coles)" <to...@chromium.org> wrote: