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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-14 20:19:53 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-14 20:19:53 +0000 |
commit | e7ee850d46d54789979bf0c5244bae1825fb7149 (patch) | |
tree | 6e94ed55df9ec749682a3c792ce752d07892b968 /lib/ruyaml/events.py | |
parent | Initial commit. (diff) | |
download | python-ruyaml-e7ee850d46d54789979bf0c5244bae1825fb7149.tar.xz python-ruyaml-e7ee850d46d54789979bf0c5244bae1825fb7149.zip |
Adding upstream version 0.91.0.upstream/0.91.0upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'lib/ruyaml/events.py')
-rw-r--r-- | lib/ruyaml/events.py | 201 |
1 files changed, 201 insertions, 0 deletions
diff --git a/lib/ruyaml/events.py b/lib/ruyaml/events.py new file mode 100644 index 0000000..558d2db --- /dev/null +++ b/lib/ruyaml/events.py @@ -0,0 +1,201 @@ +# coding: utf-8 + +from ruyaml.compat import _F + +# Abstract classes. + +if False: # MYPY + from typing import Any, Dict, List, Optional # NOQA + +SHOW_LINES = False + + +def CommentCheck(): + # type: () -> None + pass + + +class Event: + __slots__ = 'start_mark', 'end_mark', 'comment' + + def __init__(self, start_mark=None, end_mark=None, comment=CommentCheck): + # type: (Any, Any, Any) -> None + self.start_mark = start_mark + self.end_mark = end_mark + # assert comment is not CommentCheck + if comment is CommentCheck: + comment = None + self.comment = comment + + def __repr__(self): + # type: () -> Any + if True: + arguments = [] + if hasattr(self, 'value'): + # if you use repr(getattr(self, 'value')) then flake8 complains about + # abuse of getattr with a constant. When you change to self.value + # then mypy throws an error + arguments.append(repr(self.value)) # type: ignore + for key in ['anchor', 'tag', 'implicit', 'flow_style', 'style']: + v = getattr(self, key, None) + if v is not None: + arguments.append(_F('{key!s}={v!r}', key=key, v=v)) + if self.comment not in [None, CommentCheck]: + arguments.append('comment={!r}'.format(self.comment)) + if SHOW_LINES: + arguments.append( + '({}:{}/{}:{})'.format( + self.start_mark.line, # type: ignore + self.start_mark.column, # type: ignore + self.end_mark.line, # type: ignore + self.end_mark.column, # type: ignore + ) + ) + arguments = ', '.join(arguments) # type: ignore + else: + attributes = [ + key + for key in ['anchor', 'tag', 'implicit', 'value', 'flow_style', 'style'] + if hasattr(self, key) + ] + arguments = ', '.join( + [ + _F('{k!s}={attr!r}', k=key, attr=getattr(self, key)) + for key in attributes + ] + ) + if self.comment not in [None, CommentCheck]: + arguments += ', comment={!r}'.format(self.comment) + return _F( + '{self_class_name!s}({arguments!s})', + self_class_name=self.__class__.__name__, + arguments=arguments, + ) + + +class NodeEvent(Event): + __slots__ = ('anchor',) + + def __init__(self, anchor, start_mark=None, end_mark=None, comment=None): + # type: (Any, Any, Any, Any) -> None + Event.__init__(self, start_mark, end_mark, comment) + self.anchor = anchor + + +class CollectionStartEvent(NodeEvent): + __slots__ = 'tag', 'implicit', 'flow_style', 'nr_items' + + def __init__( + self, + anchor, + tag, + implicit, + start_mark=None, + end_mark=None, + flow_style=None, + comment=None, + nr_items=None, + ): + # type: (Any, Any, Any, Any, Any, Any, Any, Optional[int]) -> None + NodeEvent.__init__(self, anchor, start_mark, end_mark, comment) + self.tag = tag + self.implicit = implicit + self.flow_style = flow_style + self.nr_items = nr_items + + +class CollectionEndEvent(Event): + __slots__ = () + + +# Implementations. + + +class StreamStartEvent(Event): + __slots__ = ('encoding',) + + def __init__(self, start_mark=None, end_mark=None, encoding=None, comment=None): + # type: (Any, Any, Any, Any) -> None + Event.__init__(self, start_mark, end_mark, comment) + self.encoding = encoding + + +class StreamEndEvent(Event): + __slots__ = () + + +class DocumentStartEvent(Event): + __slots__ = 'explicit', 'version', 'tags' + + def __init__( + self, + start_mark=None, + end_mark=None, + explicit=None, + version=None, + tags=None, + comment=None, + ): + # type: (Any, Any, Any, Any, Any, Any) -> None + Event.__init__(self, start_mark, end_mark, comment) + self.explicit = explicit + self.version = version + self.tags = tags + + +class DocumentEndEvent(Event): + __slots__ = ('explicit',) + + def __init__(self, start_mark=None, end_mark=None, explicit=None, comment=None): + # type: (Any, Any, Any, Any) -> None + Event.__init__(self, start_mark, end_mark, comment) + self.explicit = explicit + + +class AliasEvent(NodeEvent): + __slots__ = 'style' + + def __init__( + self, anchor, start_mark=None, end_mark=None, style=None, comment=None + ): + # type: (Any, Any, Any, Any, Any) -> None + NodeEvent.__init__(self, anchor, start_mark, end_mark, comment) + self.style = style + + +class ScalarEvent(NodeEvent): + __slots__ = 'tag', 'implicit', 'value', 'style' + + def __init__( + self, + anchor, + tag, + implicit, + value, + start_mark=None, + end_mark=None, + style=None, + comment=None, + ): + # type: (Any, Any, Any, Any, Any, Any, Any, Any) -> None + NodeEvent.__init__(self, anchor, start_mark, end_mark, comment) + self.tag = tag + self.implicit = implicit + self.value = value + self.style = style + + +class SequenceStartEvent(CollectionStartEvent): + __slots__ = () + + +class SequenceEndEvent(CollectionEndEvent): + __slots__ = () + + +class MappingStartEvent(CollectionStartEvent): + __slots__ = () + + +class MappingEndEvent(CollectionEndEvent): + __slots__ = () |