KraKern

C++ Kernel
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.ycm_extra_conf.py (6531B)


      1 # This file is NOT licensed under the GPLv3, which is the license for the rest
      2 # of YouCompleteMe.
      3 #
      4 # Here's the license text for this file:
      5 #
      6 # This is free and unencumbered software released into the public domain.
      7 #
      8 # Anyone is free to copy, modify, publish, use, compile, sell, or
      9 # distribute this software, either in source code form or as a compiled
     10 # binary, for any purpose, commercial or non-commercial, and by any
     11 # means.
     12 #
     13 # In jurisdictions that recognize copyright laws, the author or authors
     14 # of this software dedicate any and all copyright interest in the
     15 # software to the public domain. We make this dedication for the benefit
     16 # of the public at large and to the detriment of our heirs and
     17 # successors. We intend this dedication to be an overt act of
     18 # relinquishment in perpetuity of all present and future rights to this
     19 # software under copyright law.
     20 #
     21 # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
     22 # EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
     23 # MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
     24 # IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
     25 # OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
     26 # ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
     27 # OTHER DEALINGS IN THE SOFTWARE.
     28 #
     29 # For more information, please refer to <http://unlicense.org/>
     30 
     31 import os
     32 import ycm_core
     33 
     34 # These are the compilation flags that will be used in case there's no
     35 # compilation database set (by default, one is not set).
     36 # CHANGE THIS LIST OF FLAGS. YES, THIS IS THE DROID YOU HAVE BEEN LOOKING FOR.
     37 flags = [
     38 '-Wall',
     39 '-Wextra',
     40 '-Werror',
     41 '-Wc++98-compat',
     42 '-Wno-long-long',
     43 '-Wno-variadic-macros',
     44 '-fexceptions',
     45 '-DNDEBUG',
     46 # You 100% do NOT need -DUSE_CLANG_COMPLETER in your flags; only the YCM
     47 # source code needs it.
     48 '-DUSE_CLANG_COMPLETER',
     49 # THIS IS IMPORTANT! Without a "-std=<something>" flag, clang won't know which
     50 # language to use when compiling headers. So it will guess. Badly. So C++
     51 # headers will be compiled as C headers. You don't want that so ALWAYS specify
     52 # a "-std=<something>".
     53 # For a C project, you would set this to something like 'c99' instead of
     54 # 'c++11'.
     55 '-std=c++98',
     56 # ...and the same thing goes for the magic -x option which specifies the
     57 # language that the files to be compiled are written in. This is mostly
     58 # relevant for c++ headers.
     59 # For a C project, you would set this to 'c' instead of 'c++'.
     60 '-x',
     61 'c++',
     62 '-isystem',
     63 '../BoostParts',
     64 '-isystem',
     65 # This path will only work on OS X, but extra paths that don't exist are not
     66 # harmful
     67 '/System/Library/Frameworks/Python.framework/Headers',
     68 '-isystem',
     69 '../llvm/include',
     70 '-isystem',
     71 '../llvm/tools/clang/include',
     72 '-I',
     73 '.',
     74 '-I',
     75 './ClangCompleter',
     76 '-isystem',
     77 './tests/gmock/gtest',
     78 '-isystem',
     79 './tests/gmock/gtest/include',
     80 '-isystem',
     81 './tests/gmock',
     82 '-isystem',
     83 './tests/gmock/include',
     84 '-I', 'includes/core',
     85 '-I', './modules/x86/',
     86 '-I', 'includes/boot',
     87 '-I', 'includes/lib',
     88 '-fno-builtin',
     89 '-fno-stack-protector',
     90 '-nostdlib',
     91 '-nodefaultlibs',
     92 ]
     93 
     94 
     95 # Set this to the absolute path to the folder (NOT the file!) containing the
     96 # compile_commands.json file to use that instead of 'flags'. See here for
     97 # more details: http://clang.llvm.org/docs/JSONCompilationDatabase.html
     98 #
     99 # You can get CMake to generate this file for you by adding:
    100 #   set( CMAKE_EXPORT_COMPILE_COMMANDS 1 )
    101 # to your CMakeLists.txt file.
    102 #
    103 # Most projects will NOT need to set this to anything; you can just change the
    104 # 'flags' list of compilation flags. Notice that YCM itself uses that approach.
    105 compilation_database_folder = ''
    106 
    107 if os.path.exists( compilation_database_folder ):
    108   database = ycm_core.CompilationDatabase( compilation_database_folder )
    109 else:
    110   database = None
    111 
    112 SOURCE_EXTENSIONS = [ '.cpp', '.cxx', '.cc', '.c', '.m', '.mm' ]
    113 
    114 def DirectoryOfThisScript():
    115   return os.path.dirname( os.path.abspath( __file__ ) )
    116 
    117 
    118 def MakeRelativePathsInFlagsAbsolute( flags, working_directory ):
    119   if not working_directory:
    120     return list( flags )
    121   new_flags = []
    122   make_next_absolute = False
    123   path_flags = [ '-isystem', '-I', '-iquote', '--sysroot=' ]
    124   for flag in flags:
    125     new_flag = flag
    126 
    127     if make_next_absolute:
    128       make_next_absolute = False
    129       if not flag.startswith( '/' ):
    130         new_flag = os.path.join( working_directory, flag )
    131 
    132     for path_flag in path_flags:
    133       if flag == path_flag:
    134         make_next_absolute = True
    135         break
    136 
    137       if flag.startswith( path_flag ):
    138         path = flag[ len( path_flag ): ]
    139         new_flag = path_flag + os.path.join( working_directory, path )
    140         break
    141 
    142     if new_flag:
    143       new_flags.append( new_flag )
    144   return new_flags
    145 
    146 
    147 def IsHeaderFile( filename ):
    148   extension = os.path.splitext( filename )[ 1 ]
    149   return extension in [ '.h', '.hxx', '.hpp', '.hh' ]
    150 
    151 
    152 def GetCompilationInfoForFile( filename ):
    153   # The compilation_commands.json file generated by CMake does not have entries
    154   # for header files. So we do our best by asking the db for flags for a
    155   # corresponding source file, if any. If one exists, the flags for that file
    156   # should be good enough.
    157   if IsHeaderFile( filename ):
    158     basename = os.path.splitext( filename )[ 0 ]
    159     for extension in SOURCE_EXTENSIONS:
    160       replacement_file = basename + extension
    161       if os.path.exists( replacement_file ):
    162         compilation_info = database.GetCompilationInfoForFile(
    163           replacement_file )
    164         if compilation_info.compiler_flags_:
    165           return compilation_info
    166     return None
    167   return database.GetCompilationInfoForFile( filename )
    168 
    169 
    170 def FlagsForFile( filename, **kwargs ):
    171   if database:
    172     # Bear in mind that compilation_info.compiler_flags_ does NOT return a
    173     # python list, but a "list-like" StringVec object
    174     compilation_info = GetCompilationInfoForFile( filename )
    175     if not compilation_info:
    176       return None
    177 
    178     final_flags = MakeRelativePathsInFlagsAbsolute(
    179       compilation_info.compiler_flags_,
    180       compilation_info.compiler_working_dir_ )
    181 
    182     # NOTE: This is just for YouCompleteMe; it's highly likely that your project
    183     # does NOT need to remove the stdlib flag. DO NOT USE THIS IN YOUR
    184     # ycm_extra_conf IF YOU'RE NOT 100% SURE YOU NEED IT.
    185     try:
    186       final_flags.remove( '-stdlib=libc++' )
    187     except ValueError:
    188       pass
    189   else:
    190     relative_to = DirectoryOfThisScript()
    191     final_flags = MakeRelativePathsInFlagsAbsolute( flags, relative_to )
    192 
    193   return {
    194     'flags': final_flags,
    195     'do_cache': True
    196   }