249 lines
8.1 KiB
Python
249 lines
8.1 KiB
Python
#!/usr/bin/env python
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#
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# Copyright (C) 2011, 2012 Strahinja Val Markovic <val@markovic.io>
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#
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# This file is part of YouCompleteMe.
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#
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# YouCompleteMe is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# YouCompleteMe is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with YouCompleteMe. If not, see <http://www.gnu.org/licenses/>.
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import os
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import logging
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import ycm_core
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from collections import defaultdict
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from ycm.completers.general_completer import GeneralCompleter
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# from ycm.completers.general import syntax_parse
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from ycm import utils
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from ycm.utils import ToUtf8IfNeeded
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from ycm.server import responses
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MAX_IDENTIFIER_COMPLETIONS_RETURNED = 10
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SYNTAX_FILENAME = 'YCM_PLACEHOLDER_FOR_SYNTAX'
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class IdentifierCompleter( GeneralCompleter ):
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def __init__( self, user_options ):
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super( IdentifierCompleter, self ).__init__( user_options )
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self.completer = ycm_core.IdentifierCompleter()
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self.completer.EnableThreading()
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self.tags_file_last_mtime = defaultdict( int )
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self.filetypes_with_keywords_loaded = set()
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self._logger = logging.getLogger( __name__ )
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def ShouldUseNow( self, request_data ):
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return self.QueryLengthAboveMinThreshold( request_data )
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def CandidatesForQueryAsync( self, request_data ):
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self.completions_future = self.completer.CandidatesForQueryAndTypeAsync(
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ToUtf8IfNeeded( utils.SanitizeQuery( request_data[ 'query' ] ) ),
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ToUtf8IfNeeded( request_data[ 'filetypes' ][ 0 ] ) )
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def AddIdentifier( self, identifier, request_data ):
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filetype = request_data[ 'filetypes' ][ 0 ]
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filepath = request_data[ 'filepath' ]
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if not filetype or not filepath or not identifier:
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return
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vector = ycm_core.StringVec()
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vector.append( ToUtf8IfNeeded( identifier ) )
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self._logger.info( 'Adding ONE buffer identifier for file: %s', filepath )
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self.completer.AddIdentifiersToDatabase( vector,
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ToUtf8IfNeeded( filetype ),
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ToUtf8IfNeeded( filepath ) )
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def AddPreviousIdentifier( self, request_data ):
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self.AddIdentifier(
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_PreviousIdentifier(
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self.user_options[ 'min_num_of_chars_for_completion' ],
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request_data ),
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request_data )
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def AddIdentifierUnderCursor( self, request_data ):
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cursor_identifier = _GetCursorIdentifier( request_data )
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if not cursor_identifier:
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return
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self.AddIdentifier( cursor_identifier, request_data )
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def AddBufferIdentifiers( self, request_data ):
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filetype = request_data[ 'filetypes' ][ 0 ]
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filepath = request_data[ 'filepath' ]
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collect_from_comments_and_strings = bool( self.user_options[
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'collect_identifiers_from_comments_and_strings' ] )
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if not filetype or not filepath:
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return
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text = request_data[ 'file_data' ][ filepath ][ 'contents' ]
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self._logger.info( 'Adding buffer identifiers for file: %s', filepath )
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self.completer.AddIdentifiersToDatabaseFromBufferAsync(
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ToUtf8IfNeeded( text ),
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ToUtf8IfNeeded( filetype ),
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ToUtf8IfNeeded( filepath ),
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collect_from_comments_and_strings )
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def AddIdentifiersFromTagFiles( self, tag_files ):
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absolute_paths_to_tag_files = ycm_core.StringVec()
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for tag_file in tag_files:
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try:
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current_mtime = os.path.getmtime( tag_file )
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except:
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continue
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last_mtime = self.tags_file_last_mtime[ tag_file ]
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# We don't want to repeatedly process the same file over and over; we only
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# process if it's changed since the last time we looked at it
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if current_mtime <= last_mtime:
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continue
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self.tags_file_last_mtime[ tag_file ] = current_mtime
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absolute_paths_to_tag_files.append( ToUtf8IfNeeded( tag_file ) )
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if not absolute_paths_to_tag_files:
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return
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self.completer.AddIdentifiersToDatabaseFromTagFilesAsync(
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absolute_paths_to_tag_files )
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# def AddIdentifiersFromSyntax( self ):
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# filetype = vim.eval( "&filetype" )
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# if filetype in self.filetypes_with_keywords_loaded:
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# return
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# self.filetypes_with_keywords_loaded.add( filetype )
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# keyword_set = syntax_parse.SyntaxKeywordsForCurrentBuffer()
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# keywords = ycm_core.StringVec()
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# for keyword in keyword_set:
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# keywords.append( keyword )
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# filepath = SYNTAX_FILENAME + filetype
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# self.completer.AddIdentifiersToDatabase( keywords,
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# filetype,
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# filepath )
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def OnFileReadyToParse( self, request_data ):
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self.AddBufferIdentifiers( request_data )
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if 'tag_files' in request_data:
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self.AddIdentifiersFromTagFiles( request_data[ 'tag_files' ] )
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#self.AddIdentifiersFromSyntax()
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def OnInsertLeave( self, request_data ):
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self.AddIdentifierUnderCursor( request_data )
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def OnCurrentIdentifierFinished( self, request_data ):
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self.AddPreviousIdentifier( request_data )
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def CandidatesFromStoredRequest( self ):
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if not self.completions_future:
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return []
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completions = self.completions_future.GetResults()[
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: MAX_IDENTIFIER_COMPLETIONS_RETURNED ]
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completions = _RemoveSmallCandidates(
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completions, self.user_options[ 'min_num_identifier_candidate_chars' ] )
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return [ responses.BuildCompletionData( x ) for x in completions ]
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def _PreviousIdentifier( min_num_completion_start_chars, request_data ):
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line_num = request_data[ 'line_num' ]
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column_num = request_data[ 'column_num' ]
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filepath = request_data[ 'filepath' ]
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contents_per_line = (
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request_data[ 'file_data' ][ filepath ][ 'contents' ].split( '\n' ) )
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line = contents_per_line[ line_num ]
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end_column = column_num
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while end_column > 0 and not utils.IsIdentifierChar( line[ end_column - 1 ] ):
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end_column -= 1
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# Look at the previous line if we reached the end of the current one
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if end_column == 0:
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try:
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line = contents_per_line[ line_num - 1 ]
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except:
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return ""
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end_column = len( line )
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while end_column > 0 and not utils.IsIdentifierChar(
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line[ end_column - 1 ] ):
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end_column -= 1
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start_column = end_column
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while start_column > 0 and utils.IsIdentifierChar( line[ start_column - 1 ] ):
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start_column -= 1
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if end_column - start_column < min_num_completion_start_chars:
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return ""
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return line[ start_column : end_column ]
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def _RemoveSmallCandidates( candidates, min_num_candidate_size_chars ):
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if min_num_candidate_size_chars == 0:
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return candidates
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return [ x for x in candidates if len( x ) >= min_num_candidate_size_chars ]
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# This is meant to behave like 'expand("<cword")' in Vim, thus starting at the
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# cursor column and returning the "cursor word". If the cursor is not on a valid
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# character, it searches forward until a valid identifier is found.
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def _GetCursorIdentifier( request_data ):
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def FindFirstValidChar( line, column ):
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current_column = column
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while not utils.IsIdentifierChar( line[ current_column ] ):
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current_column += 1
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return current_column
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def FindIdentifierStart( line, valid_char_column ):
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identifier_start = valid_char_column
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while identifier_start > 0 and utils.IsIdentifierChar( line[
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identifier_start - 1 ] ):
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identifier_start -= 1
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return identifier_start
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def FindIdentifierEnd( line, valid_char_column ):
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identifier_end = valid_char_column
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while identifier_end < len( line ) - 1 and utils.IsIdentifierChar( line[
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identifier_end + 1 ] ):
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identifier_end += 1
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return identifier_end + 1
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column_num = request_data[ 'column_num' ]
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line = request_data[ 'line_value' ]
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try:
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valid_char_column = FindFirstValidChar( line, column_num )
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return line[ FindIdentifierStart( line, valid_char_column ) :
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FindIdentifierEnd( line, valid_char_column ) ]
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except:
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return ''
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