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)