:mod:`lookout.style.typos`
==========================

.. py:module:: lookout.style.typos

.. autoapi-nested-parse::

   Typos corrector. Uses symspell, FastText over a dataset of identifiers, etc.





Subpackages
-----------
.. toctree::
   :titlesonly:
   :maxdepth: 3

   benchmarks/index.rst
   
   research/index.rst
   
   tests/index.rst
   



Submodules
----------
.. toctree::
   :titlesonly:
   :maxdepth: 1

   __main__/index.rst
   
   analyzer/index.rst
   
   cmdline_tools/index.rst
   
   config/index.rst
   
   corrector/index.rst
   
   corrector_manager/index.rst
   
   corruption/index.rst
   
   generation/index.rst
   
   metrics/index.rst
   
   model/index.rst
   
   modelforgecfg/index.rst
   
   preparation/index.rst
   
   ranking/index.rst
   
   symspell/index.rst
   
   utils/index.rst
   




Package Contents
----------------






.. py:class:: IdTyposAnalyzer(model:IdTyposModel, url:str, config:Mapping[str, Any])

   Bases::class:`lookout.core.analyzer.Analyzer`

   

   Identifier typos analyzer.


   

   

   .. attribute:: _log
      

      



   

   

   .. attribute:: model_type
      

      



   

   

   .. attribute:: name
      :annotation: = lookout.style.typos 

      



   

   

   .. attribute:: vendor
      :annotation: = source{d} 

      



   

   

   .. attribute:: version
      :annotation: = 1 

      



   

   

   .. attribute:: description
      :annotation: = Corrector of typos in source code identifiers. 

      



   

   

   .. attribute:: corrector_manager
      

      



   

   

   .. attribute:: default_config
      

      



   

   

   

   .. staticmethod:: create_token_parser()

      
      Create instance of TokenParser that should be used by IdTyposAnalyzer.

      :return: TokenParser.

      



   

   .. method:: analyze(self, ptr_from:ReferencePointer, ptr_to:ReferencePointer, data_service:DataService, changes:Iterable[Change], **data)

      
      Return the list of `Comment`-s - found typo corrections.

      :param ptr_from: The Git revision of the fork point. Exists in both the original and                          the forked repositories.
      :param ptr_to: The Git revision to analyze. Exists only in the forked repository.
      :param data_service: The channel to the data service in Lookout server to query for                              UASTs, file contents, etc.
      :param changes: Iterator of changes from the data service.
      :param data: Extra data passed into the method. Used by the decorators to simplify                      the data retrieval.
      :return: List of found review suggestions. Refer to                  lookout/core/server/sdk/service_analyzer.proto.

      



   

   .. method:: generate_typos_fixes(self, changes:Sequence[Change])

      
      Generate all data about typo fix required for any type of further processing.

      The processing can be comment generation or performance report generation.

      :param changes: The list of changes in the pointed state.
      :return: Iterator with unrendered data per comment.

      



   

   .. staticmethod:: _get_identifiers(uast, lines)

      



   

   .. method:: _find_new_lines(self, prev_content:str, content:str)

      



   

   .. method:: render_comment_text(self, typo_fix:TypoFix)

      
      Generate the text of the comment for the specified typo fix.

      :param typo_fix: Information about typo fix required to render a comment text.
      :return: string with the generated comment.

      



   

   .. staticmethod:: _normalize_confidences(confidences:Sequence[float])

      



   

   .. method:: generate_identifier_suggestions(self, suggestions:Mapping[str, Iterable[Candidate]], identifier:str)

      
      Generate suggestions for the identifier and compute the probability of suggestion.

      :param suggestions: suggestions are a mapping from a token to the list of candidates.
      :param identifier: initial identifier.
      :return: a generator of tuples with a suggestion for the identifier and probability.

      



   

   .. staticmethod:: _proba(candidates:Iterable[Candidate])

      



   

   .. staticmethod:: reconstruct_identifier(tokenizer:TokenParser, pred_tokens:List[str], identifier:str)

      
      Reconstruct identifier given predicted tokens and initial identifier.

      :param tokenizer: tokenizer - instance of TokenParser.
      :param pred_tokens: list of predicted tokens.
      :param identifier: identifier.
      :return: reconstructed identifier based on predicted tokens.

      



   

   .. classmethod:: train(cls, ptr:ReferencePointer, config:Mapping[str, Any], data_service:DataService, files:Iterator[File], **data)

      
      Generate a new model on top of the specified source code.

      :param ptr: Git repository state pointer.
      :param config: Configuration of the training of unspecified structure.
      :param data_service: The channel to the data service in Lookout server to query for                              UASTs, file contents, etc.
      :param files: iterator of File records from the data service.
      :param data: Extra data passed into the method. Used by the decorators to simplify                      the data retrieval.
      :return: Instance of `AnalyzerModel` (`model_type`, to be precise).

      



   

   .. method:: check_identifiers(self, identifiers:List[str])

      
      Check tokens from identifiers for typos.

      :param identifiers: List of identifiers to check.
      :return: Dictionary of corrections grouped by ids of corresponding identifier                  in 'identifiers' and typoed tokens which have correction suggestions.

      



   

   .. method:: filter_suggestions(self, test_df:pandas.DataFrame, suggestions:Dict[int, List[Candidate]])

      
      Filter suggestions based on the repo specifics and confidence threshold.

      :param test_df: DataFrame with info about tested tokens.
      :param suggestions: Dictionary of correction suggestions grouped by                             typoed token index in test_df.
      :return: Dictionary of filtered suggestions grouped by checked token's index in test_df.

      



   

   .. classmethod:: _load_config(cls, config:Mapping[str, Any])

      
      Merge provided config with the default values.

      :param config: User-defined config.
      :return: Full config.

      











.. function:: main()

   
   Entry point of the utility.

   









.. data:: analyzer_class
   

   









.. data:: run_cmdline_tool