Since some weeks, Parfait uses instance variables instead of generated attribute getters (that needed type)
This makes it possible to simplify the boot process, getting rid of separate boot Space and class versions.
It is still quite order dependent, but all "normal" ruby code, (less magic) so easier to understand.
Also moved all code that can never run at runtime into the adapter. This included Space and Object new, space as the space will only ever be created at compile time and object, since that is quite different at run-time (which is where i am working towards)
as they are just the type of the meta_class, that was relatively simple.
I feel this is what oo is meant to be, instance variables and methods for the objects, and since classes are objects, for them too.
Class variables seem like a design mistake, weird scoping rules and no data hiding (left as an exercise to the reader)
args and locals got inlined into message, forgot to delete then
ripples out due to type creation
small type class api change, more ripples, but also more consistent
was using exit, since raise is not implemented. This was ambiguous as all programs exit.
Using :died as special kernel code and bending it, and reporting it in interpreter.
Now we are using a statically linked list of messages. This will not work with procs, but that can be solved then.
Previous (wrong) thinking was that because of procs messages have to be allocated for every call. This was too slow, and not neccessary
Parfait was depending on it, ie it created a dependency out of Parfait. But Parfiat needs to be self contained.
Moved 2 methods into parfait object, and resolved single call from text_writer to third.
Since Builtin generates risc, just like mom instructions, it was a design mistake to put builtin into risc in the first place. Now that borders are coming more into focus, it make much more sense to have the builtin in mom.
In fact the instructions should be moved out and a seperate invocation mechanism used , so functions can be parsed, not generated (wip)
start at Object get_interna_word
using the pattern to replace the whole risc method with a single mom instruction. Copying the original risc code into the instrucitons to_risc
also adding some very basic tests
last orrurences in syscalls replaced, 2 variants
- exit does not actually need the int
- all else, preallocate the int beforehand and in syscall assume the reg name (integer_tmp)
test missing
Also pass the source into the compile method.
This way compiler can be reused for subsequent compile.
Does remove some double boots, but no major time save
Wherever space was loaded to get to the next_message
we now load the Message factory.
Otherwise much the same, only the attribute is next_object, not next_message
The binary is growing with 1k objects per factory, so i had to fix (hack) arm to handle bigger constants
close#14
also tried to keep the first around as was done in space
partially to not have to add the consrtants seperately
didn't work, as chain gets broken
also this has to be redone anyway
page was maybe a too low level name
pages may be the unit of the syscall, but after that objects desolve (maybe later to be added on from different pages)
Factory has the job of handing out a new instance of a type
it keeps a freelist for that and a reserve
create (load/reduce) the int once and transfer.
Save a cruicial 2 instructions
Also expanded the variable name possibilities with _self, __const , _1 and _2
now a variable has to be created before being used
thus it is save to develop contracts where a certain name
must exist in the scope
Maybe the syntax starts getting a bit weird, but at least the ! is a common symbol in ruby
resolve once and reuse
also use non checking version of get/set
as index per definition must be ok
This creates some speedup, but mostly avoids some weird hang in Thread::Queue.pop for many seconds
Before instance variables were used to store the actual data
While this worked it was a double mental loop and (more importantly) did not allow the same memory access
Ie, in the interpreter the types for args had to be set correctly
But they don't need to be until we walk the list, when we can get the types from the method.
In short, now the fake memory may be used as memory, by indexing into it
We now have to use attr reader/writers that map to the fake memory
And while this is possible, it means a lot more self. than i would like
Also the compiler whill have to undo those attr to instance acess at some point
thus every method only has one exit
should make multi return messages smaller
especially when we have escape analisis
(maybe will help with inlining too)
