The subject says it all.
As parrot is designed to be targetted by many langauges, how will it handle 'eval' opcodes for those different languages?
Shell out to a seperate process?
As far as Perl6 (which will be written in Perl6) goes, an easy solution is to design the compiler so that compilition to imcc can be done with a generalized function call, and then link in the perl6 compiler as a module. Eval can then just be a simple wrapper around that, something like:
.pcc_sub _eval non_prototyped
.param String code_to_eval .param PerlHash options
.pcc_begin prototyped .arg code_to_eval .arg options .pcc_call _compile_perl6_code .local string IMCC .result IMCC .pcc_end
.local Sub _current_eval .local PerlUndef result compile _current_eval, "IMCC", IMCC invokecc _current_eval restore result
.pcc_begin_return .return result .pcc_end_return
.end
Something similar could be done with a C-based compiler and NCI.
- Joe
