예제 #1
0
def dispatch_callback(dataptr, h_args):
    id = rffi.cast(lltype.Signed, dataptr)
    callback = global_callback_map.get(id)
    if callback is None:
        raise RuntimeError("invalid callback id; was it garbage-collected?")
    space = callback.space
    # Unpack h_args as an extension of the default args from the callback.
    # If the callback wants the value of 'this', pass it as first argument.
    args_w, kw_w = callback.__args__.unpack()
    if kw_w:
        raise RuntimeError("callback function kw args not implemented yet")
    h_args_len = support.emjs_length(h_args)
    all_args_len = len(args_w) + h_args_len
    if callback.wants_this:
        all_args_len += 1
    all_args_w = [None] * all_args_len
    i = 0
    if callback.wants_this:
        h_this = support.emjs_prop_get_str(h_args, "this")
        w_this = _wrap_handle(space, h_this)
        all_args_w[0] = w_this
        i += 1
    for w_arg in args_w:
        all_args_w[i] = w_arg
        i += 1
    for j in xrange(h_args_len):
        w_arg = _wrap_handle(space, support.emjs_prop_get_int(h_args, j))
        all_args_w[i] = w_arg
        i += 1
    # Do the call, propagating return value or error as appropriate.
    try:
        w_res = space.call(callback.w_callback, space.newtuple(all_args_w))
    except OperationError, pyerr:
        # XXX TODO: tunnel the exception through JS and back to Python?
        # XXX TODO: allow the callback to raise js.Error and reflect it
        # properly through to the javascript side.
        # w_jserror = getstate(space).w_jserror
        # if isinstance(pyerr, w_jserror):
        #    with _unwrap_handle(pyerror.args[0]) as h_err:
        #        support.emjs_set_error(h_err)
        # else:
        #    h_msg = make_error_string()
        #    h_data = make_error_pickle()
        #    h_err = new(h_pyerror, [h_msg, h_data])
        #    support.emjs_set_error(h_err)
        #    support.emjs_free(h_err)
        errmsg = pyerr.errorstr(space)
        h_errmsg = support.emjs_make_strn(errmsg, len(errmsg))
        support.emjs_set_error(h_errmsg)
        support.emjs_free(h_errmsg)
        return support.EMJS_ERROR
예제 #2
0
파일: interp_js.py 프로젝트: bukzor/pypy
def dispatch_callback(dataptr, h_args):
    id = rffi.cast(lltype.Signed, dataptr)
    callback = global_callback_map.get(id)
    if callback is None:
        raise RuntimeError("invalid callback id; was it garbage-collected?")
    space = callback.space
    # Unpack h_args as an extension of the default args from the callback.
    # If the callback wants the value of 'this', pass it as first argument.
    args_w, kw_w = callback.__args__.unpack()
    if kw_w:
        raise RuntimeError("callback function kw args not implemented yet")
    h_args_len = support.emjs_length(h_args)
    all_args_len = len(args_w) + h_args_len
    if callback.wants_this:
        all_args_len += 1
    all_args_w = [None] * all_args_len
    i = 0
    if callback.wants_this:
        h_this = support.emjs_prop_get_str(h_args, "this")
        w_this = _wrap_handle(space, h_this)
        all_args_w[0] = w_this
        i += 1
    for w_arg in args_w:
        all_args_w[i] = w_arg
        i += 1
    for j in xrange(h_args_len):
        w_arg = _wrap_handle(space, support.emjs_prop_get_int(h_args, j))
        all_args_w[i] = w_arg
        i += 1
    # Do the call, propagating return value or error as appropriate.
    try:
        w_res = space.call(callback.w_callback, space.newtuple(all_args_w))
    except OperationError, pyerr:
        # XXX TODO: tunnel the exception through JS and back to Python?
        # XXX TODO: allow the callback to raise js.Error and reflect it
        # properly through to the javascript side.
        # w_jserror = getstate(space).w_jserror
        # if isinstance(pyerr, w_jserror):
        #    with _unwrap_handle(pyerror.args[0]) as h_err:
        #        support.emjs_set_error(h_err)
        # else:
        #    h_msg = make_error_string()
        #    h_data = make_error_pickle()
        #    h_err = new(h_pyerror, [h_msg, h_data])
        #    support.emjs_set_error(h_err)
        #    support.emjs_free(h_err)
        errmsg = pyerr.errorstr(space)
        h_errmsg = support.emjs_make_strn(errmsg, len(errmsg))
        support.emjs_set_error(h_errmsg)
        support.emjs_free(h_errmsg)
        return support.EMJS_ERROR
예제 #3
0
 def __del__(self):
     if we_are_translated() or support and support.emjs_free:
         support.emjs_free(self.handle)
예제 #4
0
파일: interp_js.py 프로젝트: bukzor/pypy
 def __del__(self):
     if we_are_translated() or support and support.emjs_free:
         support.emjs_free(self.handle)