slsDetectorPackage/python/scripts/generate_enums.py
2021-03-29 16:14:10 +02:00

83 lines
2.2 KiB
Python

"""
Code generator for enum bindings in the Python extension.
Reads the sls_detector_defs.h and enums_in.cpp then outputs
enums.cpp
"""
import re
import subprocess
from parse import remove_comments
allow_bitwise_op = ["M3_GainCaps"]
def single_line_enum(line):
sub = line[line.find('{')+1:line.find('}')]
return sub.strip().split(',')
def extract_enums(lines):
line_iter = iter(lines)
enums = {}
for line in line_iter:
m = re.search("(?<=enum )\w+(?= {)", line)
if m:
enum_name = m.group()
print(enum_name)
# print(line)
fields = []
#deal with single line enums
if '};' in line:
fields = single_line_enum(line)
else:
#deal with multi line enums
while True:
l = next(line_iter)
if '};' in l:
break
m = re.search("\w+", l)
try:
# print('\t', m.group())
fields.append(m.group())
except:
pass
fields = [f.strip() for f in fields]
enums[enum_name] = fields
return enums
def generate_enum_string(enums):
data = []
for key, value in enums.items():
if key in allow_bitwise_op:
tag=", py::arithmetic()"
else:
tag=""
data.append(f'py::enum_<slsDetectorDefs::{key}>(Defs, "{key}"{tag})\n')
for v in value:
data.append(f'\t.value("{v}", slsDetectorDefs::{key}::{v})\n')
data.append('.export_values();\n\n')
return ''.join(data)
with open('../../slsSupportLib/include/sls/sls_detector_defs.h') as f:
data = f.read()
data = remove_comments(data)
data = data.splitlines()
enums = extract_enums(data)
s = generate_enum_string(enums)
with open('../src/enums_in.cpp') as f:
data = f.read()
text = data.replace('[[ENUMS]]', s)
warning = '/* WARINING This file is auto generated any edits might be overwritten without warning */\n\n'
with open('../src/enums.cpp', 'w') as f:
f.write(warning)
f.write(text)
# run clang format on the output
subprocess.run(['clang-format', '../src/enums.cpp', '-i'])