dparoski

6 ms·

1.
by dparoski 12y ago
Hmm, IMHO it feels like you're bending the definition of "lifetime" a bit in a manner that already presumes RC-based automatic memory management, and once one accepts that assumption then naturally one concludes that the life
2.
by dparoski 12y ago
First, I want to thank you, Paul, for writing this critique. It's great to read well thought-out feedback about the draft spec that was announced yesterday. Before getting into technical nitty gritty, I wanted to clarify that the spec
3.
by dparoski 12y ago
To my knowledge a JIT compiler is not being added to PHP 5.7. Can you clarify your comment or provide a link to the source where you heard this?
4.
by dparoski 13y ago
Edit: My previous comment was referring to the second occurrence of "return" in your example (after the "==>" arrow). Just noticed I mistakenly dropped the first occurrence of "return"; the first occurrence
5.
by dparoski 13y ago
The "return" keyword is not needed if the right hand side of the lambda arrow ("==>") is an expression that is not wrapped in curly braces. If the right hand side _is_ wrapped in curly braces then it is treated as a l
6.
by dparoski 13y ago
Engineer working on Hack here. Historically XHP was developed before Hack. It's available as an add-on for PHP but never became a formal part of the PHP language. When Hack was being designed it needed to work well with XHP (as XHP is
7.
by dparoski 13y ago
Engineer working on Hack here. Hack runs on the HHVM engine. HHVM is fairly stable and is used by Facebook to serve over a billion web requests per today. In the past year or so developers outside of Facebook have started using HHVM to run
8.
by dparoski 13y ago
Engineer working on Hack here. You can actually write you example a bit more concisely in Hack: "$y ==> $y + 1".
9.
by dparoski 14y ago
As noted elsewhere in this thread, a stack-based design typically produces more compact bytecode. Compactness was a concern for us because of the size of FB's PHP code base. Also, generally speaking a stack-based design tends to be easier t