We don't have final design yet. just idea(s) and a question - should we try to do it for PHP7 or later or not at all.
Thanks. Dmitry. On Mon, Feb 16, 2015 at 3:43 PM, Cesar Rodas <ce...@rodas.me> wrote: > > On 16/02/15 13:40, Alexander Lisachenko wrote: > > 2015-02-16 15:31 GMT+03:00 Benjamin Eberlei <kont...@beberlei.de>: > > > >> My question is how do i evaluate this at runtime? I suppose a function > is > >> necessary like evaluate_ast(...), but that requires passing the > context. > >> many many open questions and as nikic points out this should probably be > >> delayed to 7.1 because it all should be discussed and specified. > >> > > This will be like pretty simple to parse: > > // For scalars: > > $attributes = (new ReflectionMethod(some::class, > 'method))->getAttributes(); > > $cacheableNode = $attributes[Cacheable::class] ?? new > > Php\Parser\Node(AST_TYPE_VALUE, 50); > > $cacheTime = $cacheableNode->value; > > > > // For more complex things, like expressions or constant, runtime > > evaluation can be performed. > > $codeNode = $attributes[Php\Contract\Requires::class] ?? new > > Php\Parser\Node(AST_TYPE_STATEMENT, '$this->value >=0'); > > $code = (string) $codeNode; > > $result = eval($code); > > > > So, do we have the interpretation/evaluation of the ASP to the userland? > That could good or bad. > > Good: It's pretty flexible > Bad: Not so as fast as doing it in C. It's not easy to understand how to > use it (but I'm sure most annotation libraries would do it for you, so > no that bad). > > Am I missing something? > > -- > César D. Rodas > Open Source developer > +595-983-161124 > PGP: F9ED A265 A3AB C8A1 D145 7368 158A 0336 C707 0AA6 > > >
