Initial version of omnifunc-based omni_completer

Still a work in progress (needs better triggering and bug fixes)

autoload/youcompleteme.vim

@@ -191,7 +191,7 @@ function! s:SetCompleteFunc()
   let &completefunc = 'youcompleteme#Complete'
   let &l:completefunc = 'youcompleteme#Complete'
 
-  if pyeval( 'ycm_state.FiletypeCompletionEnabled()' )
+  if pyeval( 'ycm_state.NativeFiletypeCompletionUsable()' )
     let &omnifunc = 'youcompleteme#OmniComplete'
     let &l:omnifunc = 'youcompleteme#OmniComplete'
   endif
@@ -299,7 +299,7 @@ endfunction
 
 function! s:UpdateDiagnosticNotifications()
   if get( g:, 'loaded_syntastic_plugin', 0 ) &&
-        \ pyeval( 'ycm_state.FiletypeCompletionEnabled()' ) &&
+        \ pyeval( 'ycm_state.NativeFiletypeCompletionUsable()' ) &&
         \ pyeval( 'ycm_state.DiagnosticsForCurrentFileReady()' )
     SyntasticCheck
   endif
@@ -408,6 +408,8 @@ function! youcompleteme#Complete( findstart, base )
       return -2
     endif
 
+
+    " TODO: make this a function-local variable instead of a script-local one
     let s:completion_start_column = pyeval( 'ycm.CompletionStartColumn()' )
     let s:should_use_filetype_completion =
           \ pyeval( 'ycm_state.ShouldUseFiletypeCompleter(' .
@@ -465,7 +467,7 @@ command! YcmDebugInfo call s:DebugInfo()
 
 
 function! s:ForceCompile()
-  if !pyeval( 'ycm_state.FiletypeCompletionEnabled()' )
+  if !pyeval( 'ycm_state.NativeFiletypeCompletionUsable()' )
     echom "Filetype completion not supported for current file, "
           \ . "cannot force recompilation."
   endif

cpp/ycm/ClangCompleter/ClangCompleter.cpp

@@ -55,6 +55,7 @@ extern const unsigned int MIN_ASYNC_THREADS;
 
 namespace {
 
+// TODO: replace this with ResultAnd from Result.h
 struct CompletionDataAndResult {
   CompletionDataAndResult( const CompletionData *completion_data,
                            const Result &result )
@@ -419,7 +420,7 @@ std::vector< CompletionData > ClangCompleter::SortCandidatesForQuery(
 
     if ( result.IsSubsequence() ) {
       CompletionDataAndResult data_and_result( &completion_datas[ i ], result );
-      data_and_results.push_back( data_and_result );
+      data_and_results.push_back( boost::move( data_and_result ) );
     }
   }
 

cpp/ycm/PythonSupport.cpp

@@ -0,0 +1,96 @@
+// Copyright (C) 2011, 2012, 2013  Strahinja Val Markovic  <val@markovic.io>
+//
+// 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/>.
+
+#include "PythonSupport.h"
+#include "standard.h"
+#include "Result.h"
+#include "Candidate.h"
+#include "CandidateRepository.h"
+#include <vector>
+
+using boost::python::len;
+using boost::python::extract;
+using boost::python::object;
+typedef boost::python::list pylist;
+
+namespace YouCompleteMe {
+
+namespace {
+
+std::vector< const Candidate * > CandidatesFromObjectList(
+    const pylist &candidates,
+    const std::string &candidate_property ) {
+  int num_candidates = len( candidates );
+  std::vector< std::string > candidate_strings;
+  candidate_strings.reserve( num_candidates );
+
+  for ( int i = 0; i < num_candidates; ++i ) {
+    if ( candidate_property.empty() ) {
+      candidate_strings.push_back( extract< std::string >( candidates[ i ] ) );
+    } else {
+      object holder = extract< object >( candidates[ i ] );
+      candidate_strings.push_back( extract< std::string >(
+              holder[ candidate_property.c_str() ] ) );
+    }
+  }
+
+  return CandidateRepository::Instance().GetCandidatesForStrings(
+      candidate_strings );
+}
+
+} // unnamed namespace
+
+boost::python::list FilterAndSortCandidates(
+    const boost::python::list &candidates,
+    const std::string &candidate_property,
+    const std::string &query ) {
+  pylist filtered_candidates;
+  if ( query.empty() )
+    return filtered_candidates;
+
+  std::vector< const Candidate * > repository_candidates =
+    CandidatesFromObjectList( candidates, candidate_property );
+
+  Bitset query_bitset = LetterBitsetFromString( query );
+  int num_candidates = len( candidates );
+  std::vector< ResultAnd< int > > object_and_results;
+
+  for ( int i = 0; i < num_candidates; ++i ) {
+    const Candidate *candidate = repository_candidates[ i ];
+
+    if ( !candidate->MatchesQueryBitset( query_bitset ) )
+      continue;
+
+    Result result = candidate->QueryMatchResult( query );
+
+    if ( result.IsSubsequence() ) {
+      ResultAnd< int > object_and_result( i, result );
+      object_and_results.push_back( boost::move( object_and_result ) );
+    }
+  }
+
+  std::sort( object_and_results.begin(), object_and_results.end() );
+
+  foreach ( const ResultAnd< int > &object_and_result,
+            object_and_results ) {
+    filtered_candidates.append( candidates[ object_and_result.extra_object_ ] );
+  }
+
+  return filtered_candidates;
+}
+
+} // namespace YouCompleteMe

cpp/ycm/PythonSupport.h

@@ -0,0 +1,37 @@
+// Copyright (C) 2011, 2012, 2013  Strahinja Val Markovic  <val@markovic.io>
+//
+// 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/>.
+
+#ifndef PYTHONSUPPORT_H_KWGFEX0V
+#define PYTHONSUPPORT_H_KWGFEX0V
+
+#include <boost/python.hpp>
+
+namespace YouCompleteMe {
+
+// Given a list of python objects (that represent completion candidates) in a
+// python list |candidates|, a |candidate_property| on which to filter and sort
+// the candidates and a user query, returns a new sorted python list with the
+// original objects that survived the filtering.
+boost::python::list FilterAndSortCandidates(
+    const boost::python::list &candidates,
+    const std::string &candidate_property,
+    const std::string &query );
+
+} // namespace YouCompleteMe
+
+#endif /* end of include guard: PYTHONSUPPORT_H_KWGFEX0V */
+

cpp/ycm/Result.h

@@ -86,6 +86,19 @@ private:
 
 };
 
+template< class T >
+struct ResultAnd {
+  ResultAnd( T extra_object, const Result &result )
+    : extra_object_( extra_object ), result_( result ) {}
+
+  bool operator< ( const ResultAnd &other ) const {
+    return result_ < other.result_;
+  }
+
+  T extra_object_;
+  Result result_;
+};
+
 } // namespace YouCompleteMe
 
 #endif /* end of include guard: RESULT_H_CZYD2SGN */

cpp/ycm/ycm_core.cpp

@@ -16,6 +16,7 @@
 // along with YouCompleteMe.  If not, see <http://www.gnu.org/licenses/>.
 
 #include "IdentifierCompleter.h"
+#include "PythonSupport.h"
 #include "Future.h"
 
 #ifdef USE_CLANG_COMPLETER
@@ -47,6 +48,7 @@ BOOST_PYTHON_MODULE(ycm_core)
   using namespace YouCompleteMe;
 
   def( "HasClangSupport", HasClangSupport );
+  def( "FilterAndSortCandidates", FilterAndSortCandidates );
 
   class_< IdentifierCompleter, boost::noncopyable >( "IdentifierCompleter" )
     .def( "EnableThreading", &IdentifierCompleter::EnableThreading )

python/completers/all/identifier_completer.py

@@ -30,6 +30,7 @@ MIN_NUM_CHARS = int( vimsupport.GetVariableValue(
 
 class IdentifierCompleter( Completer ):
   def __init__( self ):
+    super( IdentifierCompleter, self ).__init__()
     self.completer = ycm_core.IdentifierCompleter()
     self.completer.EnableThreading()
 

python/completers/all/omni_completer.py

@@ -0,0 +1,76 @@
+#!/usr/bin/env python
+#
+# Copyright (C) 2011, 2012, 2013  Strahinja Val Markovic  <val@markovic.io>
+#
+# 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/>.
+
+import vim
+import vimsupport
+from completers.completer import Completer
+
+class OmniCompleter( Completer ):
+  def __init__( self ):
+    super( OmniCompleter, self ).__init__()
+    self.omnifunc = None
+    self.stored_candidates = None
+
+
+  def SupportedFiletypes( self ):
+    return []
+
+
+  def ShouldUseNowInner( self, start_column ):
+    line = vim.current.line
+    previous_char_index = start_column - 1
+    if ( not len( line ) or
+        previous_char_index < 0 or
+        previous_char_index >= len( line ) ):
+      return False
+
+    if line[ previous_char_index ] == '.':
+      return True
+    return False
+
+
+  def CandidatesForQueryAsyncInner( self, query ):
+    if not self.omnifunc:
+      self.stored_candidates = None
+      return
+
+    return_value = vim.eval( self.omnifunc + '(1,"")' )
+    if return_value < 0:
+      self.stored_candidates = None
+      return
+
+    omnifunc_call = [ self.omnifunc,
+                      "(0,'",
+                      vimsupport.EscapeForVim( query ),
+                      "')" ]
+
+    self.stored_candidates = vim.eval( ''.join( omnifunc_call ) )
+
+
+  def AsyncCandidateRequestReadyInner( self ):
+    return True
+
+
+  def OnFileReadyToParse( self ):
+    self.omnifunc = vim.eval( '&omnifunc' )
+
+
+  def CandidatesFromStoredRequestInner( self ):
+    return self.stored_candidates
+

python/completers/completer.py

@@ -18,6 +18,23 @@
 # along with YouCompleteMe.  If not, see <http://www.gnu.org/licenses/>.
 
 import abc
+import vim
+import vimsupport
+import ycm_core
+
+
+class CompletionsCache( object ):
+  def __init__( self ):
+    self.line = -1
+    self.column = -1
+    self.raw_completions = []
+    self.filtered_completions = []
+
+
+  def CacheValid( self ):
+    completion_line, _ = vimsupport.CurrentLineAndColumn()
+    completion_column = int( vim.eval( "s:completion_start_column" ) )
+    return completion_line == self.line and completion_column == self.column
 
 
 class Completer( object ):
@@ -26,9 +43,57 @@ class Completer( object ):
 
   def __init__( self ):
     self.completions_future = None
+    self.completions_cache = None
+
+
+  def ShouldUseNow( self, start_column ):
+    inner_says_yes = self.ShouldUseNowInner( start_column )
+    previous_results_were_empty = ( self.completions_cache and
+                                    not self.completions_cache.raw_completions )
+    return inner_says_yes and not previous_results_were_empty
+
+
+  def ShouldUseNowInner( self, start_column ):
+    pass
+
+
+  def CandidatesForQueryAsync( self, query ):
+    if query and self.completions_cache and self.completions_cache.CacheValid():
+      self.completions_cache.filtered_completions = (
+        self.FilterAndSortCandidates(
+          self.completions_cache.raw_completions,
+          query ) )
+    else:
+      self.completions_cache = None
+      self.CandidatesForQueryAsyncInner( query )
+
+
+  def FilterAndSortCandidates( self, candidates, query ):
+    if not candidates:
+      return []
+
+    if hasattr( candidates, 'words' ):
+      candidates = candidates.words
+    items_are_objects = 'word' in candidates[ 0 ]
+
+    return ycm_core.FilterAndSortCandidates(
+      candidates,
+      'word' if items_are_objects else '',
+      query )
+
+
+  def CandidatesForQueryAsyncInner( self, query ):
+    pass
 
 
   def AsyncCandidateRequestReady( self ):
+    if self.completions_cache:
+      return True
+    else:
+      return self.AsyncCandidateRequestReadyInner()
+
+
+  def AsyncCandidateRequestReadyInner( self ):
     if not self.completions_future:
       # We return True so that the caller can extract the default value from the
       # future
@@ -37,6 +102,18 @@ class Completer( object ):
 
 
   def CandidatesFromStoredRequest( self ):
+    if self.completions_cache:
+      return self.completions_cache.filtered_completions
+    else:
+      self.completions_cache = CompletionsCache()
+      self.completions_cache.raw_completions = self.CandidatesFromStoredRequestInner()
+      self.completions_cache.line, _ = vimsupport.CurrentLineAndColumn()
+      self.completions_cache.column = int(
+        vim.eval( "s:completion_start_column" ) )
+      return self.completions_cache.raw_completions
+
+
+  def CandidatesFromStoredRequestInner( self ):
     if not self.completions_future:
       return []
     return self.completions_future.GetResults()
@@ -90,10 +167,5 @@ class Completer( object ):
     pass
 
 
-  @abc.abstractmethod
-  def ShouldUseNow( self, start_column ):
-    pass
-
-
   def DebugInfo( self ):
     return ''

python/completers/cpp/clang_completer.py

@@ -31,6 +31,7 @@ MAX_DIAGNOSTICS_TO_DISPLAY = int( vimsupport.GetVariableValue(
 
 class ClangCompleter( Completer ):
   def __init__( self ):
+    super( ClangCompleter, self ).__init__()
     self.completer = ycm_core.ClangCompleter()
     self.completer.EnableThreading()
     self.contents_holder = []
@@ -101,6 +102,7 @@ class ClangCompleter( Completer ):
       files = self.GetUnsavedFilesVector()
 
     line, _ = vim.current.window.cursor
+    # TODO: this should be a function parameter
     column = int( vim.eval( "s:completion_start_column" ) ) + 1
     self.completions_future = (
       self.completer.CandidatesForQueryAndLocationInFileAsync(

python/vimsupport.py

@@ -55,12 +55,12 @@ def NumLinesInBuffer( buffer ):
 
 
 def PostVimMessage( message ):
-  vim.command( 'echohl WarningMsg | echomsg "{0}" | echohl None'
-               .format( message.replace( '"', '\\"' ) ) )
+  vim.command( "echohl WarningMsg | echomsg '{0}' | echohl None"
+               .format( EscapeForVim( message ) ) )
 
 
 def EchoText( text ):
-  vim.command( "echom '{0}'".format( text.replace( "'", r"''") ) )
+  vim.command( "echom '{0}'".format( EscapeForVim( text ) ) )
 
 
 def EscapeForVim( text ):

python/ycm.py

@@ -34,6 +34,8 @@ except ImportError, e:
       os.path.dirname( os.path.abspath( __file__ ) ), str( e ) ) )
 
 from completers.all.identifier_completer import IdentifierCompleter
+from completers.all.omni_completer import OmniCompleter
+
 
 FILETYPE_SPECIFIC_COMPLETION_TO_DISABLE = vim.eval(
   'g:ycm_filetype_specific_completion_to_disable' )
@@ -42,6 +44,7 @@ FILETYPE_SPECIFIC_COMPLETION_TO_DISABLE = vim.eval(
 class YouCompleteMe( object ):
   def __init__( self ):
     self.identcomp = IdentifierCompleter()
+    self.omnicomp = OmniCompleter()
     self.filetype_completers = {}
 
 
@@ -56,7 +59,6 @@ class YouCompleteMe( object ):
       completer = self.GetFiletypeCompleterForFiletype( filetype )
       if completer:
         return completer
-
     return None
 
 
@@ -79,6 +81,8 @@ class YouCompleteMe( object ):
       completer = module.GetCompleter()
       if completer:
         supported_filetypes.extend( completer.SupportedFiletypes() )
+    else:
+      completer = self.omnicomp
 
     for supported_filetype in supported_filetypes:
       self.filetype_completers[ supported_filetype ] = completer
@@ -90,58 +94,64 @@ class YouCompleteMe( object ):
 
 
   def ShouldUseFiletypeCompleter( self, start_column ):
-    if self.FiletypeCompletionEnabled():
+    if self.FiletypeCompletionUsable():
       return self.GetFiletypeCompleter().ShouldUseNow(
         start_column )
     return False
 
 
+  def NativeFiletypeCompletionAvailable( self ):
+    completer = self.GetFiletypeCompleter()
+    return bool( completer ) and completer is not self.omnicomp
+
+
   def FiletypeCompletionAvailable( self ):
     return bool( self.GetFiletypeCompleter() )
 
 
-  def FiletypeCompletionEnabled( self ):
-    filetypes = vimsupport.CurrentFiletypes()
-    filetype_disabled = all([ x in FILETYPE_SPECIFIC_COMPLETION_TO_DISABLE
-                             for x in filetypes ])
+  def NativeFiletypeCompletionUsable( self ):
+    return ( _CurrentFiletypeCompletionEnabled() and
+             self.NativeFiletypeCompletionAvailable() )
 
-    return ( not filetype_disabled and
+
+  def FiletypeCompletionUsable( self ):
+    return ( _CurrentFiletypeCompletionEnabled() and
              self.FiletypeCompletionAvailable() )
 
 
   def OnFileReadyToParse( self ):
     self.identcomp.OnFileReadyToParse()
 
-    if self.FiletypeCompletionEnabled():
+    if self.FiletypeCompletionUsable():
       self.GetFiletypeCompleter().OnFileReadyToParse()
 
 
   def OnInsertLeave( self ):
     self.identcomp.OnInsertLeave()
 
-    if self.FiletypeCompletionEnabled():
+    if self.FiletypeCompletionUsable():
       self.GetFiletypeCompleter().OnInsertLeave()
 
 
   def DiagnosticsForCurrentFileReady( self ):
-    if self.FiletypeCompletionEnabled():
+    if self.FiletypeCompletionUsable():
       return self.GetFiletypeCompleter().DiagnosticsForCurrentFileReady()
     return False
 
 
   def GetDiagnosticsForCurrentFile( self ):
-    if self.FiletypeCompletionEnabled():
+    if self.FiletypeCompletionUsable():
       return self.GetFiletypeCompleter().GetDiagnosticsForCurrentFile()
     return []
 
 
   def ShowDetailedDiagnostic( self ):
-    if self.FiletypeCompletionEnabled():
+    if self.FiletypeCompletionUsable():
       return self.GetFiletypeCompleter().ShowDetailedDiagnostic()
 
 
   def GettingCompletions( self ):
-    if self.FiletypeCompletionEnabled():
+    if self.FiletypeCompletionUsable():
       return self.GetFiletypeCompleter().GettingCompletions()
     return False
 
@@ -149,7 +159,7 @@ class YouCompleteMe( object ):
   def OnCurrentIdentifierFinished( self ):
     self.identcomp.OnCurrentIdentifierFinished()
 
-    if self.FiletypeCompletionEnabled():
+    if self.FiletypeCompletionUsable():
       self.GetFiletypeCompleter().OnCurrentIdentifierFinished()
 
 
@@ -174,6 +184,11 @@ class YouCompleteMe( object ):
     return '\n'.join( output )
 
 
+def _CurrentFiletypeCompletionEnabled():
+  filetypes = vimsupport.CurrentFiletypes()
+  return not all([ x in FILETYPE_SPECIFIC_COMPLETION_TO_DISABLE
+                   for x in filetypes ])
+
 
 def _PathToCompletersFolder():
   dir_of_current_script = os.path.dirname( os.path.abspath( __file__ ) )