def cache( self ):
for key, data in self.refs.items():
if key not in self.items:
instance = data['instance']
block_klass = data['block_klass']
block_kwargs = data['block_kwargs']
offset = property_get( data['offset'], instance )
size = property_get( data['size'], instance )
transform = data['transform']
buffer = self.source[self.base_offset+offset:][:size]
if transform:
buffer = transform.import_data( buffer, parent=instance ).payload
self.items[key] = block_klass( source_data=buffer, parent=instance, **block_kwargs )
def cache(self):
for key, data in self.refs.items():
if key not in self.items:
instance = data['instance']
block_klass = data['block_klass']
block_kwargs = data['block_kwargs']
offset = property_get(data['offset'], instance)
size = property_get(data['size'], instance)
transform = data['transform']
buffer = self.source[self.base_offset + offset:][:size]
if transform:
buffer = transform.import_data(buffer,
parent=instance).payload
self.items[key] = block_klass(source_data=buffer,
parent=instance,
**block_kwargs)
def check_buffer(self, buffer, parent=None):
test = self.field.get_from_buffer(buffer, parent)
value = property_get(self.target, parent)
if test != value:
mismatch = f'{self}:{value}, found {test}!'
if self.raise_exception:
raise CheckException(mismatch)
logger.warning(mismatch)
def update_buffer(self, buffer, parent=None):
value = property_get(self.source, parent)
self.property_set(self.target, parent, value)
def remove(self, instance):
store = property_get(self.store, instance)
return store.remove_object(instance, self.offset, self.size)
def set(self, instance, value):
store = property_get(self.store, instance)
assert isinstance(value, self.block_klass)
return store.set_object(instance, self.offset, self.size, value)
def get(self, instance):
store = property_get(self.store, instance)
return store.get_object(instance, self.offset, self.size)
def cache(self, instance):
store = property_get(self.store, instance)
store.cache_object(instance, self.offset, self.size, self.block_klass,
self.block_kwargs, self.transform)
def get_size(self, parent=None):
value = property_get(self.target, parent)
return self.field.get_size(value, parent)
def update_deps(self, parent=None):
if parent:
name = parent.get_field_name_by_obj(self.field)
value = property_get(self.target, parent)
property_set(Ref(name), parent, value)
return
def remove( self, instance ):
store = property_get( self.store, instance )
return store.remove_object( instance, self.offset, self.size )
def set( self, instance, value ):
store = property_get( self.store, instance )
assert isinstance( value, self.block_klass )
return store.set_object( instance, self.offset, self.size, value )
def get( self, instance ):
store = property_get( self.store, instance )
return store.get_object( instance, self.offset, self.size )
def cache( self, instance ):
store = property_get( self.store, instance )
store.cache_object( instance, self.offset, self.size, self.block_klass, self.block_kwargs, self.transform )