Yu1709$!%yuyu!$%wutu!5=126+

                
____  ___       .__                 
\   \/  /  _____|  |   ______  _  __
 \     /  /  ___/  |  /  _ \ \/ \/ /
 /     \  \___ \|  |_(  <_> )     / 
/___/\  \/____  >____/\____/ \/\_/  
      \_/     \/    @ligmakokz

Editing: serializer.py

__all__ = ['Serializer', 'SerializerError']

from .error import YAMLError
from .events import *
from .nodes import *

class SerializerError(YAMLError):
    pass

class Serializer:

ANCHOR_TEMPLATE = 'id%03d'

def __init__(self, encoding=None,
            explicit_start=None, explicit_end=None, version=None, tags=None):
        self.use_encoding = encoding
        self.use_explicit_start = explicit_start
        self.use_explicit_end = explicit_end
        self.use_version = version
        self.use_tags = tags
        self.serialized_nodes = {}
        self.anchors = {}
        self.last_anchor_id = 0
        self.closed = None

def open(self):
        if self.closed is None:
            self.emit(StreamStartEvent(encoding=self.use_encoding))
            self.closed = False
        elif self.closed:
            raise SerializerError("serializer is closed")
        else:
            raise SerializerError("serializer is already opened")

def close(self):
        if self.closed is None:
            raise SerializerError("serializer is not opened")
        elif not self.closed:
            self.emit(StreamEndEvent())
            self.closed = True

#def __del__(self):
    #    self.close()

def serialize(self, node):
        if self.closed is None:
            raise SerializerError("serializer is not opened")
        elif self.closed:
            raise SerializerError("serializer is closed")
        self.emit(DocumentStartEvent(explicit=self.use_explicit_start,
            version=self.use_version, tags=self.use_tags))
        self.anchor_node(node)
        self.serialize_node(node, None, None)
        self.emit(DocumentEndEvent(explicit=self.use_explicit_end))
        self.serialized_nodes = {}
        self.anchors = {}
        self.last_anchor_id = 0

def anchor_node(self, node):
        if node in self.anchors:
            if self.anchors[node] is None:
                self.anchors[node] = self.generate_anchor(node)
        else:
            self.anchors[node] = None
            if isinstance(node, SequenceNode):
                for item in node.value:
                    self.anchor_node(item)
            elif isinstance(node, MappingNode):
                for key, value in node.value:
                    self.anchor_node(key)
                    self.anchor_node(value)

def generate_anchor(self, node):
        self.last_anchor_id += 1
        return self.ANCHOR_TEMPLATE % self.last_anchor_id

def serialize_node(self, node, parent, index):
        alias = self.anchors[node]
        if node in self.serialized_nodes:
            self.emit(AliasEvent(alias))
        else:
            self.serialized_nodes[node] = True
            self.descend_resolver(parent, index)
            if isinstance(node, ScalarNode):
                detected_tag = self.resolve(ScalarNode, node.value, (True, False))
                default_tag = self.resolve(ScalarNode, node.value, (False, True))
                implicit = (node.tag == detected_tag), (node.tag == default_tag)
                self.emit(ScalarEvent(alias, node.tag, implicit, node.value,
                    style=node.style))
            elif isinstance(node, SequenceNode):
                implicit = (node.tag
                            == self.resolve(SequenceNode, node.value, True))
                self.emit(SequenceStartEvent(alias, node.tag, implicit,
                    flow_style=node.flow_style))
                index = 0
                for item in node.value:
                    self.serialize_node(item, node, index)
                    index += 1
                self.emit(SequenceEndEvent())
            elif isinstance(node, MappingNode):
                implicit = (node.tag
                            == self.resolve(MappingNode, node.value, True))
                self.emit(MappingStartEvent(alias, node.tag, implicit,
                    flow_style=node.flow_style))
                for key, value in node.value:
                    self.serialize_node(key, node, None)
                    self.serialize_node(value, node, key)
                self.emit(MappingEndEvent())
            self.ascend_resolver()

Name	Type	Actions
__pycache__	Directory
__init__.py	File
composer.py	File
constructor.py	File
cyaml.py	File
dumper.py	File
emitter.py	File
error.py	File
events.py	File
loader.py	File
nodes.py	File
parser.py	File
reader.py	File
representer.py	File
resolver.py	File
scanner.py	File
serializer.py	File
tokens.py	File