Re: [RFC] Constant Scalar Expressions

Hi! > note that we have this functionality already: > > $ php -r 'class A { const C = FOO; } define("FOO", 23); echo A::C;' > 23 > > The first fetch will resolve that. This is true, but what happens is that "FOO" is stored and then resolved on fetch with direct lookup. Now, if C = M_PI/2, what would we store? We could theoretically store string "M_PI/2" and somehow "evaluate" it, or we could even translate: class A { const C = M_PI/2; } to: class A { const C = __definition_of_A_C; } function __define_A_C() { define(__definition_of_A_C, M_PI/2); } and when we encounter __definition_of_A_C for the first time we run __define_A_C() and take the value of __definition_of_A_C - but I imaging that would seriously complicate the code, especially if we think about how to handle exceptional situations there... -- Stanislav Malyshev, Software Architect SugarCRM: http://www.sugarcrm.com/ (408)454-6900 ext. 227