| # Copyright 2019 The Chromium Authors. All rights reserved. |
| # Use of this source code is governed by a BSD-style license that can be |
| # found in the LICENSE file. |
| |
| from .composition_parts import WithIdentifier |
| from .composition_parts import WithOwner |
| from .idl_type import IdlType |
| from .literal_constant import LiteralConstant |
| from .make_copy import make_copy |
| |
| |
| class Argument(WithIdentifier, WithOwner): |
| class IR(WithIdentifier): |
| def __init__(self, identifier, index, idl_type, default_value=None): |
| assert isinstance(index, int) |
| assert isinstance(idl_type, IdlType) |
| assert (default_value is None |
| or isinstance(default_value, LiteralConstant)) |
| |
| WithIdentifier.__init__(self, identifier) |
| |
| self.index = index |
| self.idl_type = idl_type |
| self.default_value = default_value |
| |
| def __init__(self, ir, owner): |
| assert isinstance(ir, Argument.IR) |
| |
| ir = make_copy(ir) |
| WithIdentifier.__init__(self, ir.identifier) |
| WithOwner.__init__(self, owner) |
| |
| self._index = ir.index |
| self._idl_type = ir.idl_type |
| self._default_value = ir.default_value |
| |
| @property |
| def index(self): |
| """Returns the argument index.""" |
| return self._index |
| |
| @property |
| def idl_type(self): |
| """Returns the type of the argument.""" |
| return self._idl_type |
| |
| @property |
| def is_optional(self): |
| """Returns True if this is an optional argument.""" |
| return self.idl_type.is_optional |
| |
| @property |
| def is_variadic(self): |
| """Returns True if this is a variadic argument.""" |
| return self.idl_type.is_variadic |
| |
| @property |
| def optionality(self): |
| """Returns the optionality value.""" |
| return self.idl_type.optionality |
| |
| @property |
| def default_value(self): |
| """Returns the default value or None.""" |
| return self._default_value |
