示例#1
0
文件: interp_js.py 项目: bukzor/pypy
def _convert(space, w_value):
    """Convert a wrapped value into a wrapped W_Value."""
    if space.is_w(w_value, space.w_None):
        return null
    if space.isinstance_w(w_value, space.w_bool):
        # This works because W_Bool is a subclass of W_Int.
        return W_Boolean(support.emjs_make_bool(space.int_w(w_value)))
    if space.isinstance_w(w_value, space.w_int):
        return W_Number(support.emjs_make_int32(space.int_w(w_value)))
    if space.isinstance_w(w_value, space.w_long):
        return W_Number(support.emjs_make_int32(space.int_w(w_value)))
    if space.isinstance_w(w_value, space.w_float):
        return W_Number(support.emjs_make_double(space.float_w(w_value)))
    if space.isinstance_w(w_value, space.w_str):
        value = space.str_w(w_value)
        return W_String(support.emjs_make_strn(value, len(value)))
    if space.isinstance_w(w_value, space.w_unicode):
        # XXX TODO: it would be awesome not to have to go via utf8.
        # Can we convert from raw in-memory repr direct to JS string?
        value = space.unicode_w(w_value).encode("utf-8")
        return W_String(support.emjs_make_strn(value, len(value)))
    # XXX TODO: is this typecheck safe and accurate?
    if isinstance(w_value, pypy.interpreter.function.Function):
        args = pypy.interpreter.function.Arguments(space, [])
        h_cb, cb = _make_callback(space, w_value, False, args)
        return W_Function(h_cb, None, cb)
    if isinstance(w_value, pypy.interpreter.function.Method):
        args = pypy.interpreter.function.Arguments(space, [])
        h_cb, cb = _make_callback(space, w_value, False, args)
        return W_Function(h_cb, None, cb)
    errmsg = "could not convert py type to js type"
    raise OperationError(space.w_TypeError, space.wrap(errmsg))
示例#2
0
def _convert(space, w_value):
    """Convert a wrapped value into a wrapped W_Value."""
    if space.is_w(w_value, space.w_None):
        return null
    if space.isinstance_w(w_value, space.w_bool):
        # This works because W_Bool is a subclass of W_Int.
        return W_Boolean(support.emjs_make_bool(space.int_w(w_value)))
    if space.isinstance_w(w_value, space.w_int):
        return W_Number(support.emjs_make_int32(space.int_w(w_value)))
    if space.isinstance_w(w_value, space.w_long):
        return W_Number(support.emjs_make_int32(space.int_w(w_value)))
    if space.isinstance_w(w_value, space.w_float):
        return W_Number(support.emjs_make_double(space.float_w(w_value)))
    if space.isinstance_w(w_value, space.w_str):
        value = space.str_w(w_value)
        return W_String(support.emjs_make_strn(value, len(value)))
    if space.isinstance_w(w_value, space.w_unicode):
        # XXX TODO: it would be awesome not to have to go via utf8.
        # Can we convert from raw in-memory repr direct to JS string?
        value = space.unicode_w(w_value).encode("utf-8")
        return W_String(support.emjs_make_strn(value, len(value)))
    # XXX TODO: is this typecheck safe and accurate?
    if isinstance(w_value, pypy.interpreter.function.Function):
        args = pypy.interpreter.function.Arguments(space, [])
        h_cb, cb = _make_callback(space, w_value, False, args)
        return W_Function(h_cb, None, cb)
    if isinstance(w_value, pypy.interpreter.function.Method):
        args = pypy.interpreter.function.Arguments(space, [])
        h_cb, cb = _make_callback(space, w_value, False, args)
        return W_Function(h_cb, None, cb)
    errmsg = "could not convert py type to js type"
    raise OperationError(space.w_TypeError, space.wrap(errmsg))
示例#3
0
def W_String_descr__new__(space, w_subtype, w_value):
    w_self = space.allocate_instance(W_String, w_subtype)
    if space.isinstance_w(w_value, space.w_unicode):
        # XXX TODO: it would be awesome not to have to go via utf8.
        # Can we convert from raw in-memory repr direct to JS string?
        value = space.unicode_w(w_value).encode("utf-8")
    else:
        value = space.str_w(w_value)
    h_value = support.emjs_make_strn(value, len(value))
    W_String.__init__(space.interp_w(W_String, w_self), h_value)
    return w_self
示例#4
0
文件: interp_js.py 项目: bukzor/pypy
def W_String_descr__new__(space, w_subtype, w_value):
    w_self = space.allocate_instance(W_String, w_subtype)
    if space.isinstance_w(w_value, space.w_unicode):
        # XXX TODO: it would be awesome not to have to go via utf8.
        # Can we convert from raw in-memory repr direct to JS string?
        value = space.unicode_w(w_value).encode("utf-8")
    else:
        value = space.str_w(w_value)
    h_value = support.emjs_make_strn(value, len(value))
    W_String.__init__(space.interp_w(W_String, w_self), h_value)
    return w_self
示例#5
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
示例#6
0
文件: interp_js.py 项目: 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
示例#7
0
def _convert(space, w_value):
    """Convert a wrapped value into a wrapped W_Value."""
    if space.is_w(w_value, space.w_None):
        return null
    if space.isinstance_w(w_value, space.w_bool):
        # This works because W_Bool is a subclass of W_Int.
        return W_Boolean(support.emjs_make_bool(space.int_w(w_value)))
    if space.isinstance_w(w_value, space.w_int):
        return W_Number(support.emjs_make_int32(space.int_w(w_value)))
    if space.isinstance_w(w_value, space.w_long):
        return W_Number(support.emjs_make_int32(space.int_w(w_value)))
    if space.isinstance_w(w_value, space.w_float):
        return W_Number(support.emjs_make_double(space.float_w(w_value)))
    if space.isinstance_w(w_value, space.w_str):
        value = space.str_w(w_value)
        return W_String(support.emjs_make_strn(value, len(value)))
    if space.isinstance_w(w_value, space.w_unicode):
        # XXX TODO: it would be awesome not to have to go via utf8.
        # Can we convert from raw in-memory repr direct to JS string?
        value = space.unicode_w(w_value).encode("utf-8")
        return W_String(support.emjs_make_strn(value, len(value)))
    if space.isinstance_w(w_value, space.w_dict):
        obj = W_Object(support.emjs_make_object())
        w_items = space.call_method(w_value, 'items')
        w_iter = space.iter(w_items)
        while True:
            try:
                w_tup = space.next(w_iter)
                w_key = space.getitem(w_tup, space.newint(0))
                w_value = space.getitem(w_tup, space.newint(1))
                space.setattr(obj, w_key, w_value)
            except OperationError as e:
                if not e.match(space, space.w_StopIteration):
                    raise
                else:
                    break
        return obj
    if space.isinstance_w(w_value, space.w_list):
        lst = W_Array(support.emjs_make_array(space.int_w(space.len(w_value))))
        w_iter = space.iter(w_value)
        i = 0
        while True:
            try:
                w_item = space.next(w_iter)
                space.setitem(lst, space.newint(i), w_item)
                i += 1
            except OperationError as e:
                if not e.match(space, space.w_StopIteration):
                    raise
                else:
                    break
        return lst
    # XXX TODO: is this typecheck safe and accurate?
    if isinstance(w_value, pypy.interpreter.function.Function):
        args = pypy.interpreter.function.Arguments(space, [])
        h_cb, cb = _make_callback(space, w_value, False, args)
        return W_Function(h_cb, None, cb)
    if isinstance(w_value, pypy.interpreter.function.Method):
        args = pypy.interpreter.function.Arguments(space, [])
        h_cb, cb = _make_callback(space, w_value, False, args)
        return W_Function(h_cb, None, cb)
    errmsg = "could not convert py type to js type"
    raise OperationError(space.w_TypeError, space.wrap(errmsg))
示例#8
0
def _convert(space, w_value):
    """Convert a wrapped value into a wrapped W_Value."""
    if space.is_w(w_value, space.w_None):
        return null
    if space.isinstance_w(w_value, space.w_bool):
        # This works because W_Bool is a subclass of W_Int.
        return W_Boolean(support.emjs_make_bool(space.int_w(w_value)))
    if space.isinstance_w(w_value, space.w_int):
        return W_Number(support.emjs_make_int32(space.int_w(w_value)))
    if space.isinstance_w(w_value, space.w_long):
        return W_Number(support.emjs_make_int32(space.int_w(w_value)))
    if space.isinstance_w(w_value, space.w_float):
        return W_Number(support.emjs_make_double(space.float_w(w_value)))
    if space.isinstance_w(w_value, space.w_str):
        value = space.str_w(w_value)
        return W_String(support.emjs_make_strn(value, len(value)))
    if space.isinstance_w(w_value, space.w_unicode):
        # XXX TODO: it would be awesome not to have to go via utf8.
        # Can we convert from raw in-memory repr direct to JS string?
        value = space.unicode_w(w_value).encode("utf-8")
        return W_String(support.emjs_make_strn(value, len(value)))
    if space.isinstance_w(w_value, space.w_dict):
        obj = W_Object(support.emjs_make_object())
        w_items = space.call_method(w_value, 'items')
        w_iter = space.iter(w_items)
        while True:
            try:
                w_tup = space.next(w_iter)
                w_key = space.getitem(w_tup, space.newint(0))
                w_value = space.getitem(w_tup, space.newint(1))
                space.setattr(obj, w_key, w_value)
            except OperationError as e:
                if not e.match(space, space.w_StopIteration):
                    raise
                else:
                    break
        return obj
    if space.isinstance_w(w_value, space.w_list):
        lst = W_Array(support.emjs_make_array(space.int_w(space.len(w_value))))
        w_iter = space.iter(w_value)
        i = 0
        while True:
            try:
                w_item = space.next(w_iter)
                space.setitem(lst, space.newint(i), w_item)
                i += 1
            except OperationError as e:
                if not e.match(space, space.w_StopIteration):
                    raise
                else:
                    break
        return lst
    # XXX TODO: is this typecheck safe and accurate?
    if isinstance(w_value, pypy.interpreter.function.Function):
        args = pypy.interpreter.function.Arguments(space, [])
        h_cb, cb = _make_callback(space, w_value, False, args)
        return W_Function(h_cb, None, cb)
    if isinstance(w_value, pypy.interpreter.function.Method):
        args = pypy.interpreter.function.Arguments(space, [])
        h_cb, cb = _make_callback(space, w_value, False, args)
        return W_Function(h_cb, None, cb)
    errmsg = "could not convert py type to js type"
    raise OperationError(space.w_TypeError, space.wrap(errmsg))