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#!/usr/bin/python
# Look for all static member functions marked LLFIO_MAKE_FREE_FUNCTION and make them free
# (C) 2017 Niall Douglas
from __future__ import print_function
import glob, re
for header in glob.glob("../include/afio/*/*.hpp"):
with open(header, "rt") as ih:
lines = ih.readlines()
current_class = None
functions_to_be_freed = []
functions_to_be_freed_begin = -1
functions_to_be_freed_end = -1
for lineidx in range(0, len(lines)):
if lines[lineidx].startswith('class'):
current_class = lines[lineidx][6:lines[lineidx].find(':')]
current_class = current_class.replace('LLFIO_DECL', '').lstrip().rstrip()
if 'LLFIO_MAKE_FREE_FUNCTION' in lines[lineidx] and re.match('\s*LLFIO_MAKE_FREE_FUNCTION', lines[lineidx]):
function = ''
for n in range(1, 100):
if 'LLFIO_REQUIRES' in lines[lineidx+n]:
continue
function += lines[lineidx+n]
if lineidx+n+1 >= len(lines):
print(lines[lineidx:])
raise Exception()
if '{' in lines[lineidx+n+1] or ';' in lines[lineidx+n]:
break
function = function.replace('//\n', '')
function = function.replace('\n', '')
function = function.replace(';', '')
docs = ''
if '*/' in lines[lineidx-1] or '//!' in lines[lineidx-1]:
for n in range(1, 100):
if '//!' in lines[lineidx-n] or '/*!' in lines[lineidx-n]:
docs = ''.join(lines[lineidx-n:lineidx])
# Remove any indent
docs = docs.replace('\n ', '\n')[2:]
break
functions_to_be_freed.append((current_class, function, docs))
elif '// BEGIN make_free_functions.py' in lines[lineidx]:
functions_to_be_freed_begin = lineidx
elif '// END make_free_functions.py' in lines[lineidx]:
functions_to_be_freed_end = lineidx
if functions_to_be_freed:
if functions_to_be_freed_begin != -1:
del lines[functions_to_be_freed_begin+1:functions_to_be_freed_end]
else:
# Place just before the last LLFIO_V2_NAMESPACE_END
functions_to_be_freed_begin = len(lines)-1
while not lines[functions_to_be_freed_begin].startswith('LLFIO_V2_NAMESPACE_END'):
functions_to_be_freed_begin = functions_to_be_freed_begin - 1
lines.insert(functions_to_be_freed_begin, '// END make_free_functions.py\n\n')
lines.insert(functions_to_be_freed_begin, '// BEGIN make_free_functions.py\n')
idx = functions_to_be_freed_begin + 1
for classname, function, docs in functions_to_be_freed:
print((classname, function))
function = function.replace('virtual ', '')
function = function.replace('override', '')
function = function.replace('LLFIO_HEADERS_ONLY_MEMFUNC_SPEC ', '')
function = function.replace('LLFIO_HEADERS_ONLY_VIRTUAL_SPEC ', '')
completion_template = 'template <class CompletionRoutine>' in function
function = function.replace('template <class CompletionRoutine> ', '')
is_static = 'static ' in function
function = function.replace('static ', '')
function = function.lstrip()
if not function.startswith('inline'):
function = 'inline ' + function
if completion_template:
function = 'template <class CompletionRoutine> ' + function
def replace(function, item):
function = function.replace(' '+item+' ', ' '+classname+'::'+item+' ')
function = function.replace('('+item+' ', '('+classname+'::'+item+' ')
function = function.replace('<'+item+',', '<'+classname+'::'+item+',')
function = function.replace('<'+item+'>', '<'+classname+'::'+item+'>')
function = function.replace(' '+item+'>', ' '+classname+'::'+item+'>')
return function
function = replace(function, 'path_view_type')
function = replace(function, 'extent_type')
function = replace(function, 'size_type')
function = replace(function, 'buffer_type')
function = replace(function, 'const_buffer_type')
function = replace(function, 'enumerate_info')
function = replace(function, 'buffers_type')
function = replace(function, 'const_buffers_type')
function = replace(function, 'io_state_ptr')
function = function.replace('path_view_type()', classname+'::path_view_type()')
function = function.replace(' io_result<', ' '+classname+'::io_result<')
function = function.replace(' io_request<', ' '+classname+'::io_request<')
function = function.replace('(io_request<', '('+classname+'::io_request<')
function = function.replace('<io_state_ptr<', '<'+classname+'::io_state_ptr<')
function = function.replace('<awaitable<', '<'+classname+'::awaitable<')
function = function.replace(' mode ', ' '+classname+'::mode ')
function = function.replace(' mode::', ' '+classname+'::mode::')
function = function.replace(' creation ', ' '+classname+'::creation ')
function = function.replace(' creation::', ' '+classname+'::creation::')
function = function.replace(' caching ', ' '+classname+'::caching ')
function = function.replace(' caching::', ' '+classname+'::caching::')
function = function.replace(' flag ', ' '+classname+'::flag ')
function = function.replace(' flag::', ' '+classname+'::flag::')
function = function.replace(' filter ', ' '+classname+'::filter ')
function = function.replace(' filter::', ' '+classname+'::filter::')
if function[-2] == ';':
function=function[:-2]
elif '}' in function:
function = function[:function.rfind('{')] + function[function.rfind('}')+1:]
function = function.rstrip()
idx1 = function.rfind('const')
idx2 = function.rfind(')')
is_const = False
if idx1 > idx2:
function = function[:idx1] + function[idx1+6:]
function = function.rstrip()
is_const = True
idx1 = function.rfind('= 0')
if idx1 > idx2:
function = function[:idx1] + function[idx1+3:]
function = function.rstrip()
if is_static:
call = function
impl = "\n{\n return "+classname+"::"
else:
call = function
idx1 = function.find('(')
idx2 = function.rfind(')')
function = function[:idx1+1] + (('const ' + classname) if is_const else classname) + (' &self, ' if idx1+1 != idx2 else ' &self') + function[idx1+1:]
impl = "\n{\n return self."
idx1 = docs.find('\\param')
if idx1 != -1:
docs = docs[:idx1] + '\param self The object whose member function to call.\n' + docs[idx1:]
#print(call)
call = re.sub(r'^.+?(?= [^ ]+\()', '', call) # remove anything before the function call
#print(call)
call = re.sub(r'(?<=\) ).*', '', call) # remove anything after the function call
#print(call)
call = re.sub(r'".*?"', '', call) # remove any string literals
#print(call)
call = re.sub(r'\s?=.+?(?:\(.*?\))?(?=[,)])', '', call) # remove all default initialisers
#print(call)
impl += re.match(r'.+\(', call).group(0).lstrip()
first = True
for par in re.finditer(r'\w*[,)]', call):
if not first:
impl += ' '
else:
first = False
p = par.group(0)
if p == ')':
impl += ')'
else:
impl += 'std::forward<decltype('+p[:-1]+')>('+p[:-1]+')'+p[-1]
impl += ";\n}\n"
lines.insert(idx, function+impl)
lines.insert(idx, docs)
idx = idx + 2
with open(header, "wt") as oh:
oh.writelines(lines)
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