GitLab

- also made other classes immutable in universe
Signed-off-by: Stefan Marr <git@stefan-marr.de>

[back port from RTruffleSOM]
Signed-off-by: Stefan Marr <git@stefan-marr.de>

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

Avoids need to call reset on it, and might help RPython to figure out that frame does not escape (making it more functional like this often helped in the past)
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>

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>

[backport from RTruffleSOM]
Signed-off-by: Stefan Marr <git@stefan-marr.de>

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

- whitespace and variable names
Signed-off-by: Stefan Marr <git@stefan-marr.de>

[sync with RTruffleSOM]
Signed-off-by: Stefan Marr <git@stefan-marr.de>

- remove redundant parentheses
- simplify string for warning
- make _is_binary_signature protected
- remove unused imports
- fixed whitespace and capitalization in tests
Signed-off-by: Stefan Marr <git@stefan-marr.de>

Used for instance in the Fannkuch benchmark, and was supported before.
Signed-off-by: Stefan Marr <git@stefan-marr.de>

This allows the object to be freed much earlier (and tells the JIT that
the object that linger on some stack do not actually escape).

in theory, an rpython for x in range loop should be exactly equivalent
to a while loop. The only difference is if it contains a JIT driver, in
which case the for loop is slower :-(

this is made possible with a workaround for the JIT bug that so far
disabled inlining when this driver is present.

Pointed out by @cfbolz, having i in the set of greens lets to complete unrolling of the loop.
Signed-off-by: Stefan Marr <git@stefan-marr.de>

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

TruffleSOM also intrinsifies this.
Signed-off-by: Stefan Marr <git@stefan-marr.de>

- make bytecode loop unroll safe
- refactor while loop implementation to avoid code duplication
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>

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>