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https://github.com/PiBrewing/craftbeerpi4.git
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84 lines
2.5 KiB
Python
84 lines
2.5 KiB
Python
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# Copyright (c) 2015-2016, 2018 Claudiu Popa <pcmanticore@gmail.com>
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# Copyright (c) 2016 Ceridwen <ceridwenv@gmail.com>
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# Copyright (c) 2017 Roy Wright <roy@wright.org>
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# Copyright (c) 2018 Ashley Whetter <ashley@awhetter.co.uk>
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# Copyright (c) 2019 Antoine Boellinger <aboellinger@hotmail.com>
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# Licensed under the LGPL: https://www.gnu.org/licenses/old-licenses/lgpl-2.1.en.html
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# For details: https://github.com/PyCQA/astroid/blob/master/COPYING.LESSER
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"""Astroid hooks for the PyQT library."""
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from astroid import MANAGER, register_module_extender
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from astroid.builder import AstroidBuilder
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from astroid import nodes
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from astroid import parse
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def _looks_like_signal(node, signal_name="pyqtSignal"):
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if "__class__" in node.instance_attrs:
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try:
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cls = node.instance_attrs["__class__"][0]
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return cls.name == signal_name
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except AttributeError:
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# return False if the cls does not have a name attribute
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pass
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return False
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def transform_pyqt_signal(node):
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module = parse(
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"""
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class pyqtSignal(object):
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def connect(self, slot, type=None, no_receiver_check=False):
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pass
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def disconnect(self, slot):
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pass
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def emit(self, *args):
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pass
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"""
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)
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signal_cls = module["pyqtSignal"]
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node.instance_attrs["emit"] = signal_cls["emit"]
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node.instance_attrs["disconnect"] = signal_cls["disconnect"]
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node.instance_attrs["connect"] = signal_cls["connect"]
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def transform_pyside_signal(node):
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module = parse(
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"""
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class NotPySideSignal(object):
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def connect(self, receiver, type=None):
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pass
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def disconnect(self, receiver):
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pass
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def emit(self, *args):
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pass
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"""
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)
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signal_cls = module["NotPySideSignal"]
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node.instance_attrs["connect"] = signal_cls["connect"]
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node.instance_attrs["disconnect"] = signal_cls["disconnect"]
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node.instance_attrs["emit"] = signal_cls["emit"]
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def pyqt4_qtcore_transform():
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return AstroidBuilder(MANAGER).string_build(
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"""
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def SIGNAL(signal_name): pass
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class QObject(object):
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def emit(self, signal): pass
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"""
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)
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register_module_extender(MANAGER, "PyQt4.QtCore", pyqt4_qtcore_transform)
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MANAGER.register_transform(nodes.FunctionDef, transform_pyqt_signal, _looks_like_signal)
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MANAGER.register_transform(
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nodes.ClassDef,
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transform_pyside_signal,
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lambda node: node.qname() in ("PySide.QtCore.Signal", "PySide2.QtCore.Signal"),
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)
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