def rpython2javascript(mod, function_names, jsconfig=None, use_pdb=True):
if isinstance(function_names, str):
function_names = [function_names]
# avoid confusion
if mod is None:
# this means actual module, which is quite hairy to get in python,
# so we cheat
import sys
mod = sys.modules[sys._getframe(1).f_globals['__name__']]
if jsconfig is None:
jsconfig = Config(js_optiondescr)
if use_pdb:
jsconfig.use_pdb = True
module_name = mod.__name__
if not function_names and 'main' in mod.__dict__:
function_names.append('main')
for func_name in function_names:
if func_name not in mod.__dict__:
raise FunctionNotFound("function %r was not found in module %r" % (func_name, module_name))
func_code = mod.__dict__[func_name]
if func_code.func_defaults:
lgt = len(func_code.func_defaults)
else:
lgt = 0
if func_code.func_code.co_argcount > 0 and func_code.func_code. \
co_argcount != lgt:
raise BadSignature("Function %s does not have default arguments" % func_name)
source_ssf = get_source_ssf(mod, module_name, function_names)
exec(source_ssf) in globals()
# now we gonna just cut off not needed function
# XXX: Really do that
#options = optparse.Values(defaults=DEFAULT_OPTIONS)
from pypy.config.pypyoption import get_pypy_config
config = get_pypy_config(translating=True)
driver = TranslationDriver(config=config)
try:
driver.setup(some_strange_function_which_will_never_be_called, [], policy = JsPolicy())
driver.proceed(["compile_js"])
if jsconfig.view:
driver.translator.view()
return driver.gen.tmpfile.open().read()
# XXX: Add some possibility to write down selected file
except Exception, e:
# do something nice with it
debug(driver, use_pdb)
