Dan Sugalski <[EMAIL PROTECTED]> wrote: > Pads shouldn't really be stacks, they should be plain linked lists.
A plain linked list is lacking the chunk allocation scheme. I'm not sure if allocating a buffer_like and Parrot_allocate the memory for the pads is better, then the current stack based implementation. But I still don't know, how control stack, exception objects located there, and scopes are playing together. > Pads and namespaces are singly-linked lists, which we need to deal > with separately. WRT namespaces: pdd06 has named global tables and indexed access for globals in such a table. This is similar to the indexed access in lexical pads. The implementation of both is totally different though. First we should know, if $HL is likely to access lexicals/globals by name or by index or mixed ... Then such a pad or namespace table probably should be a separate PMC class with a hash and an array inside. So manipulation of these could be done with normal opcodes + some special shortcut ops for common operations. leo
