Import LLVM 10.0.0 release including clang, lld and lldb.

ok hackroom
tested by plenty

1 files changed, 145 insertions, 0 deletions

diff --git a/gnu/llvm/clang/tools/clang-format/clang-format.py b/gnu/llvm/clang/tools/clang-format/clang-format.py
new file mode 100644
index 00000000000..1a615b17072
--- /dev/null
+++ b/gnu/llvm/clang/tools/clang-format/clang-format.py
@@ -0,0 +1,145 @@
+# This file is a minimal clang-format vim-integration. To install:
+# - Change 'binary' if clang-format is not on the path (see below).
+# - Add to your .vimrc:
+#
+#   if has('python')
+#     map <C-I> :pyf <path-to-this-file>/clang-format.py<cr>
+#     imap <C-I> <c-o>:pyf <path-to-this-file>/clang-format.py<cr>
+#   elseif has('python3')
+#     map <C-I> :py3f <path-to-this-file>/clang-format.py<cr>
+#     imap <C-I> <c-o>:py3f <path-to-this-file>/clang-format.py<cr>
+#   endif
+#
+# The if-elseif-endif conditional should pick either the python3 or python2 
+# integration depending on your vim setup.
+# 
+# The first mapping enables clang-format for NORMAL and VISUAL mode, the second
+# mapping adds support for INSERT mode. Change "C-I" to another binding if you
+# need clang-format on a different key (C-I stands for Ctrl+i).
+#
+# With this integration you can press the bound key and clang-format will
+# format the current line in NORMAL and INSERT mode or the selected region in
+# VISUAL mode. The line or region is extended to the next bigger syntactic
+# entity.
+#
+# You can also pass in the variable "l:lines" to choose the range for
+# formatting. This variable can either contain "<start line>:<end line>" or
+# "all" to format the full file. So, to format the full file, write a function
+# like:
+# :function FormatFile()
+# :  let l:lines="all"
+# :  if has('python')
+# :    pyf <path-to-this-file>/clang-format.py
+# :  elseif has('python3')
+# :    py3f <path-to-this-file>/clang-format.py
+# :  endif
+# :endfunction
+#
+# It operates on the current, potentially unsaved buffer and does not create
+# or save any files. To revert a formatting, just undo.
+from __future__ import absolute_import, division, print_function
+
+import difflib
+import json
+import platform
+import subprocess
+import sys
+import vim
+
+# set g:clang_format_path to the path to clang-format if it is not on the path
+# Change this to the full path if clang-format is not on the path.
+binary = 'clang-format'
+if vim.eval('exists("g:clang_format_path")') == "1":
+  binary = vim.eval('g:clang_format_path')
+
+# Change this to format according to other formatting styles. See the output of
+# 'clang-format --help' for a list of supported styles. The default looks for
+# a '.clang-format' or '_clang-format' file to indicate the style that should be
+# used.
+style = None
+fallback_style = None
+if vim.eval('exists("g:clang_format_fallback_style")') == "1":
+  fallback_style = vim.eval('g:clang_format_fallback_style')
+
+def get_buffer(encoding):
+  if platform.python_version_tuple()[0] == '3':
+    return vim.current.buffer
+  return [ line.decode(encoding) for line in vim.current.buffer ]
+
+def main():
+  # Get the current text.
+  encoding = vim.eval("&encoding")
+  buf = get_buffer(encoding)
+  # Join the buffer into a single string with a terminating newline
+  text = '\n'.join(buf) + '\n'
+
+  # Determine range to format.
+  if vim.eval('exists("l:lines")') == '1':
+    lines = ['-lines', vim.eval('l:lines')]
+  elif vim.eval('exists("l:formatdiff")') == '1':
+    with open(vim.current.buffer.name, 'r') as f:
+      ondisk = f.read().splitlines();
+    sequence = difflib.SequenceMatcher(None, ondisk, vim.current.buffer)
+    lines = []
+    for op in reversed(sequence.get_opcodes()):
+      if op[0] not in ['equal', 'delete']:
+        lines += ['-lines', '%s:%s' % (op[3] + 1, op[4])]
+    if lines == []:
+      return
+  else:
+    lines = ['-lines', '%s:%s' % (vim.current.range.start + 1,
+                                  vim.current.range.end + 1)]
+
+  # Determine the cursor position.
+  cursor = int(vim.eval('line2byte(line("."))+col(".")')) - 2
+  if cursor < 0:
+    print('Couldn\'t determine cursor position. Is your file empty?')
+    return
+
+  # Avoid flashing an ugly, ugly cmd prompt on Windows when invoking clang-format.
+  startupinfo = None
+  if sys.platform.startswith('win32'):
+    startupinfo = subprocess.STARTUPINFO()
+    startupinfo.dwFlags |= subprocess.STARTF_USESHOWWINDOW
+    startupinfo.wShowWindow = subprocess.SW_HIDE
+
+  # Call formatter.
+  command = [binary, '-cursor', str(cursor)]
+  if lines != ['-lines', 'all']:
+    command += lines
+  if style:
+    command.extend(['-style', style])
+  if fallback_style:
+    command.extend(['-fallback-style', fallback_style])
+  if vim.current.buffer.name:
+    command.extend(['-assume-filename', vim.current.buffer.name])
+  p = subprocess.Popen(command,
+                       stdout=subprocess.PIPE, stderr=subprocess.PIPE,
+                       stdin=subprocess.PIPE, startupinfo=startupinfo)
+  stdout, stderr = p.communicate(input=text.encode(encoding))
+
+  # If successful, replace buffer contents.
+  if stderr:
+    print(stderr)
+
+  if not stdout:
+    print(
+        'No output from clang-format (crashed?).\n'
+        'Please report to bugs.llvm.org.'
+    )
+  else:
+    lines = stdout.decode(encoding).split('\n')
+    output = json.loads(lines[0])
+    # Strip off the trailing newline (added above).
+    # This maintains trailing empty lines present in the buffer if
+    # the -lines specification requests them to remain unchanged.
+    lines = lines[1:-1]
+    sequence = difflib.SequenceMatcher(None, buf, lines)
+    for op in reversed(sequence.get_opcodes()):
+      if op[0] != 'equal':
+        vim.current.buffer[op[1]:op[2]] = lines[op[3]:op[4]]
+    if output.get('IncompleteFormat'):
+      print('clang-format: incomplete (syntax errors)')
+    vim.command('goto %d' % (output['Cursor'] + 1))
+
+main()