mirror of
https://github.com/SickGear/SickGear.git
synced 2024-11-16 01:45:08 +00:00
77 lines
2.6 KiB
Python
77 lines
2.6 KiB
Python
|
from ..base import *
|
||
|
|
from ..conversions import *
|
||
|
|
from ..func_utils import *
|
||
|
|
from pyjsparser import parse
|
||
|
|
from ..byte_trans import ByteCodeGenerator, Code
|
||
|
|
|
||
|
|
|
||
|
|
def Function(this, args):
|
||
|
|
# convert arguments to python list of strings
|
||
|
|
a = list(map(to_string, tuple(args)))
|
||
|
|
_body = u';'
|
||
|
|
_args = ()
|
||
|
|
if len(a):
|
||
|
|
_body = u'%s;' % a[-1]
|
||
|
|
_args = a[:-1]
|
||
|
|
return executable_function(_body, _args, args.space, global_context=True)
|
||
|
|
|
||
|
|
|
||
|
|
def executable_function(_body, _args, space, global_context=True):
|
||
|
|
func_str = u'(function (%s) { ; %s ; });' % (u', '.join(_args), _body)
|
||
|
|
|
||
|
|
co = executable_code(
|
||
|
|
code_str=func_str, space=space, global_context=global_context)
|
||
|
|
return co()
|
||
|
|
|
||
|
|
|
||
|
|
# you can use this one lovely piece of function to compile and execute code on the fly! Watch out though as it may generate lots of code.
|
||
|
|
# todo tape cleanup? we dont know which pieces are needed and which are not so rather impossible without smarter machinery something like GC,
|
||
|
|
# a one solution would be to have a separate tape for functions
|
||
|
|
def executable_code(code_str, space, global_context=True):
|
||
|
|
# parse first to check if any SyntaxErrors
|
||
|
|
parsed = parse(code_str)
|
||
|
|
|
||
|
|
old_tape_len = len(space.byte_generator.exe.tape)
|
||
|
|
space.byte_generator.record_state()
|
||
|
|
start = space.byte_generator.exe.get_new_label()
|
||
|
|
skip = space.byte_generator.exe.get_new_label()
|
||
|
|
space.byte_generator.emit('JUMP', skip)
|
||
|
|
space.byte_generator.emit('LABEL', start)
|
||
|
|
space.byte_generator.emit(parsed)
|
||
|
|
space.byte_generator.emit('NOP')
|
||
|
|
space.byte_generator.emit('LABEL', skip)
|
||
|
|
space.byte_generator.emit('NOP')
|
||
|
|
space.byte_generator.restore_state()
|
||
|
|
|
||
|
|
space.byte_generator.exe.compile(
|
||
|
|
start_loc=old_tape_len
|
||
|
|
) # dont read the code from the beginning, dont be stupid!
|
||
|
|
|
||
|
|
ctx = space.GlobalObj if global_context else space.exe.current_ctx
|
||
|
|
|
||
|
|
def ex_code():
|
||
|
|
ret, status, token = space.byte_generator.exe.execute_fragment_under_context(
|
||
|
|
ctx, start, skip)
|
||
|
|
# todo Clean up the tape!
|
||
|
|
# this is NOT a way to do that because the fragment may contain the executable code! We dont want to remove it
|
||
|
|
#del space.byte_generator.exe.tape[old_tape_len:]
|
||
|
|
if status == 0:
|
||
|
|
return ret
|
||
|
|
elif status == 3:
|
||
|
|
raise token
|
||
|
|
else:
|
||
|
|
raise RuntimeError(
|
||
|
|
'Unexpected return status during JIT execution: %d' % status)
|
||
|
|
|
||
|
|
return ex_code
|
||
|
|
|
||
|
|
|
||
|
|
def _eval(this, args):
|
||
|
|
code_str = to_string(get_arg(args, 0))
|
||
|
|
return executable_code(code_str, args.space, global_context=True)()
|
||
|
|
|
||
|
|
|
||
|
|
def log(this, args):
|
||
|
|
print(' '.join(map(to_string, args)))
|
||
|
|
return undefined
|