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Exceptions: Difference between revisions
note about scoping to C++
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Methods that never fail are the easiest to handle: exception safety at call sites is free. These are called '''nothrow''' methods following the ''Effective C++'' terminology. If we identify nothrow methods and annotate them, then we can easily refactor their sites. | Methods that never fail are the easiest to handle: exception safety at call sites is free. These are called '''nothrow''' methods following the ''Effective C++'' terminology. If we identify nothrow methods and annotate them, then we can easily refactor their sites. | ||
We'll assume that any method implemented in JavaScript can fail and throw an exception, so the nothrow analysis is restricted to methods implemented in C++. The prime example is property retrieval methods. | |||
[http://gcc.gnu.org/onlinedocs/gcc-4.0.0/gcc/Function-Attributes.html#index-g_t_0040code_007bnothrow_007d-function-attribute-1735 GNU attribute syntax] | [http://gcc.gnu.org/onlinedocs/gcc-4.0.0/gcc/Function-Attributes.html#index-g_t_0040code_007bnothrow_007d-function-attribute-1735 GNU attribute syntax] | ||