diff options
| author | Sebastian Koslowski <sebastian.koslowski@gmail.com> | 2016-05-03 17:13:08 +0200 |
|---|---|---|
| committer | Johnathan Corgan <johnathan@corganlabs.com> | 2017-06-29 09:16:49 -0700 |
| commit | 7f7fa2f91467fdb2b11312be8562e7b51fdeb199 (patch) | |
| tree | 24268bac15b9920d2a15ddbb45eaf3b9b03718a1 /grc/core/Element.py | |
| parent | 44cae388881821942e691a4d69a923bbd8d347db (diff) | |
grc: added yaml/mako support
Includes basic converter from XML/Cheetah to YAML/Mako based block format.
Diffstat (limited to 'grc/core/Element.py')
| -rw-r--r-- | grc/core/Element.py | 180 |
1 files changed, 0 insertions, 180 deletions
diff --git a/grc/core/Element.py b/grc/core/Element.py deleted file mode 100644 index 86e0746655..0000000000 --- a/grc/core/Element.py +++ /dev/null @@ -1,180 +0,0 @@ -# Copyright 2008, 2009, 2015, 2016 Free Software Foundation, Inc. -# This file is part of GNU Radio -# -# GNU Radio Companion is free software; you can redistribute it and/or -# modify it under the terms of the GNU General Public License -# as published by the Free Software Foundation; either version 2 -# of the License, or (at your option) any later version. -# -# GNU Radio Companion is distributed in the hope that it will be useful, -# but WITHOUT ANY WARRANTY; without even the implied warranty of -# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -# GNU General Public License for more details. -# -# You should have received a copy of the GNU General Public License -# along with this program; if not, write to the Free Software -# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA - -import weakref -import functools - - -class lazy_property(object): - - def __init__(self, func): - self.func = func - functools.update_wrapper(self, func) - - def __get__(self, instance, cls): - if instance is None: - return self - value = self.func(instance) - setattr(instance, self.func.__name__, value) - return value - - -def nop_write(prop): - """Make this a property with a nop setter""" - def nop(self, value): - pass - return prop.setter(nop) - - -class Element(object): - - def __init__(self, parent=None): - self._parent = weakref.ref(parent) if parent else lambda: None - self._error_messages = [] - - ################################################## - # Element Validation API - ################################################## - def validate(self): - """ - Validate this element and call validate on all children. - Call this base method before adding error messages in the subclass. - """ - del self._error_messages[:] - - for child in self.get_children(): - child.validate() - - def is_valid(self): - """ - Is this element valid? - - Returns: - true when the element is enabled and has no error messages or is bypassed - """ - if not self.enabled or self.get_bypassed(): - return True - return not next(self.iter_error_messages(), False) - - def add_error_message(self, msg): - """ - Add an error message to the list of errors. - - Args: - msg: the error message string - """ - self._error_messages.append(msg) - - def get_error_messages(self): - """ - Get the list of error messages from this element and all of its children. - Do not include the error messages from disabled or bypassed children. - Cleverly indent the children error messages for printing purposes. - - Returns: - a list of error message strings - """ - return [msg if elem is self else "{}:\n\t{}".format(elem, msg.replace("\n", "\n\t")) - for elem, msg in self.iter_error_messages()] - - def iter_error_messages(self): - """ - Iterate over error messages. Yields tuples of (element, message) - """ - for msg in self._error_messages: - yield self, msg - for child in self.get_children(): - if not child.enabled or child.get_bypassed(): - continue - for element_msg in child.iter_error_messages(): - yield element_msg - - def rewrite(self): - """ - Rewrite this element and call rewrite on all children. - Call this base method before rewriting the element. - """ - for child in self.get_children(): - child.rewrite() - - @property - def enabled(self): - return True - - def get_bypassed(self): - return False - - ############################################## - # Tree-like API - ############################################## - @property - def parent(self): - return self._parent() - - def get_parent_by_type(self, cls): - parent = self.parent - if parent is None: - return None - elif isinstance(parent, cls): - return parent - else: - return parent.get_parent_by_type(cls) - - @lazy_property - def parent_platform(self): - from .Platform import Platform - return self.get_parent_by_type(Platform) - - @lazy_property - def parent_flowgraph(self): - from .FlowGraph import FlowGraph - return self.get_parent_by_type(FlowGraph) - - @lazy_property - def parent_block(self): - from .Block import Block - return self.get_parent_by_type(Block) - - def reset_parents_by_type(self): - """Reset all lazy properties""" - for name, obj in vars(Element): # explicitly only in Element, not subclasses - if isinstance(obj, lazy_property): - delattr(self, name) - - def get_children(self): - return list() - - ############################################## - # Type testing - ############################################## - is_platform = False - - is_flow_graph = False - - is_block = False - - is_dummy_block = False - - is_connection = False - - is_port = False - - is_param = False - - is_variable = False - - is_import = False |