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JavaScript:SpiderMonkey:C++ Coding Style: Difference between revisions
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JavaScript:SpiderMonkey:C++ Coding Style (view source)
Revision as of 22:49, 5 November 2009
, 5 November 2009→References
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* No exceptions, so std is hard to use. There is initial work underway to make STL-like containers that mesh well with the rest of the JS engine (see js::Vector, js::HashMap, js::Pool). | * No exceptions, so std is hard to use. There is initial work underway to make STL-like containers that mesh well with the rest of the JS engine (see js::Vector, js::HashMap, js::Pool). | ||
** There are still improvements to be made to the new hash table: double-hash implementation; improve bit-mixing into multiplicative hash if the cycle costs can be supported (measurement is required and we should understand down to the bits what is going on); a js::HashSet or js::HashMap<T,void> specialization such that set-like use of hashtables do not waste any space on values. | ** There are still improvements to be made to the new hash table: double-hash implementation; improve bit-mixing into multiplicative hash if the cycle costs can be supported (measurement is required and we should understand down to the bits what is going on); a js::HashSet or js::HashMap<T,void> specialization such that set-like use of hashtables do not waste any space on values. | ||
== Boolean Types == | |||
* We would like to use the C++ 'bool' type wherever possible, but we must avoid breaking public and 'friend' APIs that use JSBool. So public header files (and semi-public headers, like 'jsopcodes.h') should continue to use 'JSBool', 'JS_TRUE', and 'JS_FALSE'. In all SpiderMonkey '.cpp' files, use 'true' and 'false', never 'JS_TRUE' or 'JS_FALSE'. Use 'bool' whenever doing so would not conflict with a declaration in a public or semi-public header. | |||
== References == | == References == | ||