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#!/usr/bin/env python3
# SPDX-License-Identifier: GPL-2.0-or-later
"""
When a source file declares a struct which isn't used anywhere else in the file.
Remove it.
There may be times this is needed, however there can typically be removed.
"""
import os
import sys
import re
from typing import (
Dict,
Optional,
)
PWD = os.path.dirname(__file__)
sys.path.append(os.path.join(PWD, "modules"))
from batch_edit_text import run
SOURCE_DIR = os.path.normpath(os.path.abspath(os.path.normpath(os.path.join(PWD, "..", "..", ".."))))
# TODO, move to config file
SOURCE_DIRS = (
"source",
"intern/ghost",
)
SOURCE_EXT = (
# C/C++
".c", ".h", ".cpp", ".hpp", ".cc", ".hh", ".cxx", ".hxx", ".inl",
# Objective C
".m", ".mm",
)
re_words = re.compile("[A-Za-z_][A-Za-z_0-9]*")
re_match_struct = re.compile(r"struct\s+([A-Za-z_][A-Za-z_0-9]*)\s*;")
def clean_structs(fn: str, data_src: str) -> Optional[str]:
import re
word_occurance: Dict[str, int] = {}
for w_match in re_words.finditer(data_src):
w = w_match.group(0)
try:
word_occurance[w] += 1
except KeyError:
word_occurance[w] = 1
lines = data_src.splitlines(keepends=True)
i = 0
while i < len(lines):
m = re_match_struct.match(lines[i])
if m is not None:
struct_name = m.group(1)
if word_occurance[struct_name] == 1:
print(struct_name, fn)
del lines[i]
i -= 1
i += 1
data_dst = "".join(lines)
if data_src != data_dst:
return data_dst
return None
run(
directories=[os.path.join(SOURCE_DIR, d) for d in SOURCE_DIRS],
is_text=lambda fn: fn.endswith(SOURCE_EXT),
text_operation=clean_structs,
use_multiprocess=False,
)
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