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Rework SWIG python binding not to rely on polymorhpic functions. Use hand-written typemaps that map vectors to tuples and iterables to vectors. Add support for multidimensional aggregates in Python.

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This commit is contained in:
Thomas Krijnen
2015-06-17 11:27:02 +00:00
parent f8c45b2a99
commit 48676a733f
10 changed files with 454 additions and 176 deletions
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src/ifcopenshell-python/ifcopenshell/__init__.py
+9 -13
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@@ -51,22 +51,15 @@ class entity_instance(object):
return entity_instance.wrap_value(self.wrapped_data.get_inverse(name))
else: raise AttributeError("entity instance of type '%s' has no attribute '%s'"%(self.wrapped_data.is_a(), name))
@staticmethod
def map_value(v):
if isinstance(v, entity_instance): return v.wrapped_data
elif isinstance(v, (tuple, list)) and len(v):
classes = list(map(type, v))
if float in classes: return ifcopenshell_wrapper.double_vector(v)
elif int in classes: return ifcopenshell_wrapper.int_vector(v)
elif str in classes: return ifcopenshell_wrapper.string_vector(v)
elif entity_instance in classes: return list(map(lambda e: e.wrapped_data, v))
return v
@staticmethod
def wrap_value(v):
wrap = lambda e: entity_instance(e)
if isinstance(v, ifcopenshell_wrapper.entity_instance): return wrap(v)
elif isinstance(v, (tuple, list)) and len(v):
classes = list(map(type, v))
if ifcopenshell_wrapper.entity_instance in classes: return list(map(wrap, v))
classes = set(map(type, v))
if {ifcopenshell_wrapper.entity_instance} == classes: return list(map(wrap, v))
elif {list} == classes:
classes = set(map(type, v[0]))
if {ifcopenshell_wrapper.entity_instance} == classes: return [list(map(wrap, x)) for x in v]
return v
def attribute_type(self, attr):
attr_idx = attr if isinstance(attr, int) else self.wrapped_data.get_argument_index(attr)
@@ -78,7 +71,10 @@ class entity_instance(object):
def __getitem__(self, key):
return entity_instance.wrap_value(self.wrapped_data.get_argument(key))
def __setitem__(self, idx, value):
self.wrapped_data.set_argument(idx, entity_instance.map_value(value))
attr_type = self.attribute_type(idx).title().replace(' ', '')
attr_type = attr_type.replace('Binary', 'String')
attr_type = attr_type.replace('Enumeration', 'String')
getattr(self.wrapped_data, "setArgumentAs%s" % attr_type)(idx, value)
def __len__(self): return len(self.wrapped_data)
def __repr__(self): return repr(self.wrapped_data)
def is_a(self, *args): return self.wrapped_data.is_a(*args)