def _create_record_node(self):
"""Creates a record node."""
node = MappingDataNode()
start_mark = self._event.start_mark
end_mark = self._event.end_mark
self._next_parse_event()
# create children
while (self._event is not None and
not isinstance(self._event, pyyaml.MappingEndEvent)):
key = self._create_record_key()
self._next_parse_event() # value event
if not key: # if key is invalid
continue
if self._event is None:
break # something went wrong, abandon ship!
if key.value == '<<': # handle merge
self._perform_merge(key, node)
self._next_parse_event()
continue
child_node = self._create_node(node)
self._next_parse_event()
if child_node is None: # i.e. unresolved alias
continue
child_node.key = key
node.set_child(child_node)
if self._event is not None: # update end_mark when map ends correctly
end_mark = self._event.end_mark
elif node.children:
end_mark = node.children[-1].span.end
end_mark.line -= 1
end_mark.column -= 1
node.span = Span.from_marks(start_mark, end_mark)
return node
def _create_array_node(self):
"""Creates an array node."""
node = SequenceDataNode()
start_mark = self._event.start_mark
end_mark = self._event.end_mark
self._next_parse_event()
while (self._event is not None and
not isinstance(self._event, pyyaml.SequenceEndEvent)):
key = TextValue(str(len(node.children)))
child_node = self._create_node(node)
self._next_parse_event()
if child_node is None: # i.e. unresolved alias
continue
child_node.key = key
node.children.append(child_node)
if self._event is not None: # update end_mark when array ends correctly
end_mark = self._event.end_mark
elif node.children:
end_mark = node.children[-1].span.end
end_mark.line -= 1
end_mark.column -= 1
node.span = Span.from_marks(start_mark, end_mark)
return node