On Sat, Sep 27, 2014 at 02:51:14PM -0700, Walter Bright via Digitalmars-d wrote: [...] > The only interesting thing is he describes a way that functions (and > blocks) can specify what global data they access, and then have the > compiler issue errors for accessing any other global data. He has a > way to do that both locally and transitively.
That sounds like PHP. *shudder* > However, the same effect can be achieved via pure annotations and > passing the globals needed by reference as function parameters. [...] I'm a fan of grouping related globals into structs with module level instances, and passed by reference to functions that need those specific globals. Truly-global globals are nasty, as are open sets of globals where you either don't access a global, or you (potentially) access *all* globals with no finer access granularity. (I had to debug C code that did that once... boy it was mind-bending when every function call could potentially arbitrarily change the global state.) T -- Computers are like a jungle: they have monitor lizards, rams, mice, c-moss, binary trees... and bugs.
