def descr__getattr__(self, space, name):
h_res = support.emjs_prop_get_str(self.handle, name)
if h_res == support.EMJS_UNDEFINED:
raise OperationError(space.w_AttributeError, space.wrap(name))
w_res = _wrap_handle(space, h_res)
# Turn functions into methods during attribute lookup.
# XXX TODO: find a non-exception-driven check for this.
try:
func = space.interp_w(W_Function, w_res)
except OperationError, e:
if not e.match(space, space.w_TypeError):
raise
def descr__getattr__(self, space, name):
h_res = support.emjs_prop_get_str(self.handle, name)
if h_res == support.EMJS_UNDEFINED:
raise OperationError(space.w_AttributeError, space.wrap(name))
w_res = _wrap_handle(space, h_res)
# Turn functions into methods during attribute lookup.
# XXX TODO: find a non-exception-driven check for this.
try:
func = space.interp_w(W_Function, w_res)
except OperationError, e:
if not e.match(space, space.w_TypeError):
raise
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
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
def descr__getitem__(self, space, w_prop):
if space.isinstance_w(w_prop, space.w_str):
prop = space.str_w(w_prop)
h_res = support.emjs_prop_get_str(self.handle, prop)
elif space.isinstance_w(w_prop, space.w_int):
prop = space.int_w(w_prop)
h_res = support.emjs_prop_get_int(self.handle, prop)
elif space.isinstance_w(w_prop, space.w_long):
prop = space.int_w(w_prop)
h_res = support.emjs_prop_get_int(self.handle, prop)
else:
with _unwrap_handle(space, w_prop) as h_prop:
h_res = support.emjs_prop_get(self.handle, h_prop)
return _wrap_handle(space, h_res)
def descr__getitem__(self, space, w_prop):
if space.isinstance_w(w_prop, space.w_str):
prop = space.str_w(w_prop)
h_res = support.emjs_prop_get_str(self.handle, prop)
elif space.isinstance_w(w_prop, space.w_int):
prop = space.int_w(w_prop)
h_res = support.emjs_prop_get_int(self.handle, prop)
elif space.isinstance_w(w_prop, space.w_long):
prop = space.int_w(w_prop)
h_res = support.emjs_prop_get_int(self.handle, prop)
else:
with _unwrap_handle(space, w_prop) as h_prop:
h_res = support.emjs_prop_get(self.handle, h_prop)
return _wrap_handle(space, h_res)
def startup(self, space):
# Hold a permanent handle to the globals object.
self.h_globals = support.emjs_globals()
_check_error(space, self.h_globals)
# And a permanent object while we're at it.
self.w_globals.handle = self.h_globals
# Hold a permanent handle to the Array type constructor.
self.h_array = support.emjs_prop_get_str(self.h_globals, "Array")
_check_error(space, self.h_array)
# Create a custom Error type for throwing errors from python callbacks.
self.h_pyerror = support.emjs_eval("""
(function() {
function PyError(message) {
this.name = PyError;
this.message = message || 'Python Error';
}
PyError.prototype = new Error();
PyError.prototype.constructor = PyError;
return PyError;
})()
""")
_check_error(space, self.h_pyerror)
def startup(self, space):
# Hold a permanent handle to the globals object.
self.h_globals = support.emjs_globals()
_check_error(space, self.h_globals)
# And a permanent object while we're at it.
self.w_globals.handle = self.h_globals
# Hold a permanent handle to the Array type constructor.
self.h_array = support.emjs_prop_get_str(self.h_globals, "Array")
_check_error(space, self.h_array)
# Create a custom Error type for throwing errors from python callbacks.
self.h_pyerror = support.emjs_eval("""
(function() {
function PyError(message) {
this.name = PyError;
this.message = message || 'Python Error';
}
PyError.prototype = new Error();
PyError.prototype.constructor = PyError;
return PyError;
})()
""")
_check_error(space, self.h_pyerror)
