Signed-off-by: Stefan Marr <git@stefan-marr.de>

Method invocation takes care of restarts and non-local returns, very similar to the Truffle version.
Signed-off-by: Stefan Marr <git@stefan-marr.de>

- it relies on interpreter returning result values and puts it on the stack
- non-local returns are handled by method call of the context
Signed-off-by: Stefan Marr <git@stefan-marr.de>

Signed-off-by: Stefan Marr <git@stefan-marr.de>

Signed-off-by: Stefan Marr <git@stefan-marr.de>

Signed-off-by: Stefan Marr <git@stefan-marr.de>

Signed-off-by: Stefan Marr <git@stefan-marr.de>

- remove all unnecessary fields
- pass frame along explicitly
- remove unnecessary parameters from functions
- local returns use simple return statements, while non-local returns rely on exceptions to unwind the stack
- removed unnecessary frame related operations from interpreter (manipulating the stack of frames)
- added comments about the bytecode number associated with each bytecode to ease debugging
Signed-off-by: Stefan Marr <git@stefan-marr.de>

Added control flow exceptions to manage non-local returns and block restarts in this recursively written interpreter
Signed-off-by: Stefan Marr <git@stefan-marr.de>

Signed-off-by: Stefan Marr <git@stefan-marr.de>

Signed-off-by: Stefan Marr <git@stefan-marr.de>

It was for debugging, but #dnu's can be useful on their own.
Signed-off-by: Stefan Marr <git@stefan-marr.de>

Globals are not supported by RPython
Signed-off-by: Stefan Marr <git@stefan-marr.de>

Otherwise, RPython can't proof that it is not going to be modified.
Signed-off-by: Stefan Marr <git@stefan-marr.de>

- delete unneeded frame primitives
- added missing __init__ to AbstractObject
- removed unused parameter from print_stack_trace
- pass instance of universe to get_class(.)
Signed-off-by: Stefan Marr <git@stefan-marr.de>

Introduction of AbstractObject without fields and classes.
Methods are not Arrays anymore to simplify and avoid use of 'object fields'.
Frames are not entirely implementation specific.

- clean out superficial comments
- added missing primitives
Signed-off-by: Stefan Marr <git@stefan-marr.de>

Signed-off-by: Stefan Marr <git@stefan-marr.de>

Signed-off-by: Stefan Marr <git@stefan-marr.de>

Signed-off-by: Stefan Marr <git@stefan-marr.de>

Signed-off-by: Stefan Marr <git@stefan-marr.de>

Signed-off-by: Stefan Marr <git@stefan-marr.de>

Before, we downloaded always the latest head, I think. Not very useful for performance tacking.
Signed-off-by: Stefan Marr <git@stefan-marr.de>

- also added them to .gitignore
Signed-off-by: Stefan Marr <git@stefan-marr.de>

Signed-off-by: Stefan Marr <git@stefan-marr.de>

Signed-off-by: Stefan Marr <git@stefan-marr.de>

Signed-off-by: Stefan Marr <git@stefan-marr.de>

Signed-off-by: Stefan Marr <git@stefan-marr.de>

Signed-off-by: Stefan Marr <git@stefan-marr.de>

Signed-off-by: Stefan Marr <git@stefan-marr.de>

And make prints robust to msg being None
Signed-off-by: Stefan Marr <git@stefan-marr.de>

Signed-off-by: Stefan Marr <git@stefan-marr.de>

Signed-off-by: Stefan Marr <git@stefan-marr.de>

Signed-off-by: Stefan Marr <git@stefan-marr.de>

Binary operators on Double will convert the numbers first into a int/long.
Signed-off-by: Stefan Marr <git@stefan-marr.de>

Optimize low-hanging fruit in the jitted RPython version

version the global dict: make the JIT assume that globals are rarely
changed at runtime and make it produce new machine code when they
change.

it always lead to two dict lookups instead of one

this is not a fully transparent annotation, as it means that if the user
changes the method it has no effect on already compiled code. This can
be fixed properly, once the object model is made less funny.

the computation of the key and the global lookup was reaaaaally
expensive