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# Copyright (C) 2016, Davit Samvelyan
#
# This file is part of YouCompleteMe.
#
# YouCompleteMe is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# YouCompleteMe is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with YouCompleteMe. If not, see <http://www.gnu.org/licenses/>.
from ycm import vimsupport
from ycm.client.event_notification import EventNotification
from ycm.diagnostic_interface import DiagnosticInterface
from ycm.semantic_highlighting import SemanticHighlighting
from ycm.inlay_hints import InlayHints
# Emulates Vim buffer
# Used to store buffer related information like diagnostics, latest parse
# request. Stores buffer change tick at the parse request moment, allowing
# to effectively determine whether reparse is needed for the buffer.
class Buffer:
def __init__( self, bufnr, user_options, filetypes ):
self._number = bufnr
self._parse_tick = 0
self._handled_tick = 0
self._parse_request = None
self._should_resend = False
self._diag_interface = DiagnosticInterface( bufnr, user_options )
self._open_loclist_on_ycm_diags = user_options[
'open_loclist_on_ycm_diags' ]
self._semantic_highlighting = SemanticHighlighting( bufnr, user_options )
self.inlay_hints = InlayHints( bufnr, user_options )
self.UpdateFromFileTypes( filetypes )
def FileParseRequestReady( self, block = False ):
return ( bool( self._parse_request ) and
( block or self._parse_request.Done() ) )
def SendParseRequest( self, extra_data ):
# Don't send a parse request if one is in progress
if self._parse_request is not None and not self._parse_request.Done():
self._should_resend = True
return
self._should_resend = False
self._parse_request = EventNotification( 'FileReadyToParse',
extra_data = extra_data )
self._parse_request.Start()
# Decrement handled tick to ensure correct handling when we are forcing
# reparse on buffer visit and changed tick remains the same.
self._handled_tick -= 1
self._parse_tick = self._ChangedTick()
def ParseRequestPending( self ):
return bool( self._parse_request ) and not self._parse_request.Done()
def NeedsReparse( self ):
return self._parse_tick != self._ChangedTick()
def ShouldResendParseRequest( self ):
return ( self._should_resend
or ( bool( self._parse_request )
and self._parse_request.ShouldResend() ) )
def UpdateDiagnostics( self, force = False ):
if force or not self._async_diags:
self.UpdateWithNewDiagnostics( self._parse_request.Response(), False )
else:
# We need to call the response method, because it might throw an exception
# or require extra config confirmation, even if we don't actually use the
# diagnostics.
self._parse_request.Response()
def UpdateWithNewDiagnostics( self, diagnostics, async_message ):
self._async_diags = async_message
self._diag_interface.UpdateWithNewDiagnostics(
diagnostics,
not self._async_diags and self._open_loclist_on_ycm_diags )
def UpdateMatches( self ):
self._diag_interface.UpdateMatches()
def PopulateLocationList( self, open_on_edit = False ):
return self._diag_interface.PopulateLocationList( open_on_edit )
def GetResponse( self ):
return self._parse_request.Response()
def IsResponseHandled( self ):
return self._handled_tick == self._parse_tick
def MarkResponseHandled( self ):
self._handled_tick = self._parse_tick
def OnCursorMoved( self ):
self._diag_interface.OnCursorMoved()
def GetErrorCount( self ):
return self._diag_interface.GetErrorCount()
def GetWarningCount( self ):
return self._diag_interface.GetWarningCount()
def RefreshDiagnosticsUI( self ):
return self._diag_interface.RefreshDiagnosticsUI()
def ClearDiagnosticsUI( self ):
return self._diag_interface.ClearDiagnosticsUI()
def DiagnosticsForLine( self, line_number ):
return self._diag_interface.DiagnosticsForLine( line_number )
def UpdateFromFileTypes( self, filetypes ):
self._filetypes = filetypes
# We will set this to true if we ever receive any diagnostics asyncronously.
self._async_diags = False
def SendSemanticTokensRequest( self ):
self._semantic_highlighting.SendRequest()
def SemanticTokensRequestReady( self ):
return self._semantic_highlighting.IsResponseReady()
def UpdateSemanticTokens( self ):
return self._semantic_highlighting.Update()
def _ChangedTick( self ):
return vimsupport.GetBufferChangedTick( self._number )
class BufferDict( dict ):
def __init__( self, user_options ):
self._user_options = user_options
def __missing__( self, key ):
# Python does not allow to return assignment operation result directly
new_value = self[ key ] = Buffer(
key,
self._user_options,
vimsupport.GetBufferFiletypes( key ) )
return new_value
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