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	- The 'stripdecls.py' script replaces declarations in all headers by includes to generated headers. `ag '#\s*if(?!ndef NEOVIM_).*((?!#\s*endif).*\n)*#ifdef INCLUDE_GENERATED'` was used for this. - Add and integrate gendeclarations.lua into the build system to generate the required includes. - Add -Wno-unused-function - Made a bunch of old-style definitions ANSI This adds a requirement: all type and structure definitions must be present before INCLUDE_GENERATED_DECLARATIONS-protected include. Warning: mch_expandpath (path.h.generated.h) was moved manually. So far it is the only exception.
		
			
				
	
	
		
			142 lines
		
	
	
		
			4.1 KiB
		
	
	
	
		
			Python
		
	
	
		
			Executable File
		
	
	
	
	
			
		
		
	
	
			142 lines
		
	
	
		
			4.1 KiB
		
	
	
	
		
			Python
		
	
	
		
			Executable File
		
	
	
	
	
#!/usr/bin/python
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# vim: set fileencoding=utf-8:
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from __future__ import print_function, unicode_literals, division
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from clang.cindex import Index, CursorKind
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from collections import namedtuple, OrderedDict, defaultdict
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import sys
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import os
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DECL_KINDS = {
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  CursorKind.FUNCTION_DECL,
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}
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Strip = namedtuple('Strip', 'start_line start_column end_line end_column')
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def main(progname, cfname, only_static, move_all):
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  only_static = False
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  cfname = os.path.abspath(os.path.normpath(cfname))
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  hfname1 = os.path.splitext(cfname)[0] + os.extsep + 'h'
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  hfname2 = os.path.splitext(cfname)[0] + '_defs' + os.extsep + 'h'
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  files_to_modify = (cfname, hfname1, hfname2)
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  index = Index.create()
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  src_dirname = os.path.join(os.path.dirname(__file__), '..', 'src')
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  src_dirname = os.path.abspath(os.path.normpath(src_dirname))
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  relname = os.path.join(src_dirname, 'nvim')
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  unit = index.parse(cfname, args=('-I' + src_dirname,
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                                   '-DUNIX',
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                                   '-DEXITFREE',
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                                   '-DFEAT_USR_CMDS',
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                                   '-DFEAT_CMDL_COMPL',
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                                   '-DFEAT_COMPL_FUNC',
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                                   '-DPROTO',
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                                   '-DUSE_MCH_ERRMSG'))
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  cursor = unit.cursor
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  tostrip = defaultdict(OrderedDict)
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  definitions = set()
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  for child in cursor.get_children():
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    if not (child.location and child.location.file):
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      continue
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    fname = os.path.abspath(os.path.normpath(child.location.file.name))
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    if fname not in files_to_modify:
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      continue
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    if child.kind not in DECL_KINDS:
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      continue
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    if only_static and next(child.get_tokens()).spelling == 'static':
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      continue
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    if child.is_definition() and fname == cfname:
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      definitions.add(child.spelling)
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    else:
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      stripdict = tostrip[fname]
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      assert(child.spelling not in stripdict)
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      stripdict[child.spelling] = Strip(
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        child.extent.start.line,
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        child.extent.start.column,
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        child.extent.end.line,
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        child.extent.end.column,
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      )
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  for (fname, stripdict) in tostrip.items():
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    if not move_all:
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      for name in set(stripdict) - definitions:
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        stripdict.pop(name)
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    if not stripdict:
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      continue
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    if fname.endswith('.h'):
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      is_h_file = True
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      include_line = next(reversed(stripdict.values())).start_line + 1
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    else:
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      is_h_file = False
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      include_line = next(iter(stripdict.values())).start_line
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    lines = None
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    generated_existed = os.path.exists(fname + '.generated.h')
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    with open(fname, 'rb') as F:
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      lines = list(F)
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    stripped = []
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    for name, position in reversed(stripdict.items()):
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      sl = slice(position.start_line - 1, position.end_line)
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      if is_h_file:
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        include_line -= sl.stop - sl.start
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      stripped += lines[sl]
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      lines[sl] = ()
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    if not generated_existed:
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      lines[include_line:include_line] = [
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        '#ifdef INCLUDE_GENERATED_DECLARATIONS\n',
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        '# include "{0}.generated.h"\n'.format(os.path.relpath(fname, relname)),
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        '#endif\n',
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      ]
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    with open(fname, 'wb') as F:
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      F.writelines(lines)
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if __name__ == '__main__':
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  progname = sys.argv[0]
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  args = sys.argv[1:]
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  if not args or '--help' in args:
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    print('Usage:')
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    print('')
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    print('  {0} [--static [--all]] file.c...'.format(progname))
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    print('')
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    print('Stripts all declarations from file.c, file.h and file_defs.h.')
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    print('If --static argument is given then only static declarations are')
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    print('stripped. Declarations are stripped only if corresponding')
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    print('definition is found unless --all argument was given.')
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    print('')
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    print('Note: it is assumed that static declarations starts with "static"')
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    print('      keyword.')
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    sys.exit(0 if args else 1)
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  if args[0] == '--static':
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    only_static = True
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    args = args[1:]
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  else:
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    only_static = False
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  if args[0] == '--all':
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    move_all = True
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    args = args[1:]
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  else:
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    move_all = False
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  for cfname in args:
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    print('Processing {0}'.format(cfname))
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    main(progname, cfname, only_static, move_all)
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