Quelle cleanup_computed_getters.py
Sprache: Python
#!/usr/bin/env python3 # This Source Code Form is subject to the terms of the Mozilla Public # License, v. 2.0. If a copy of the MPL was not distributed with this # file, You can obtain one at http://mozilla.org/MPL/2.0/.
"""
Script to remove unused getters in nsComputedDOMStyle.
It needs to be run from the topsrcdir, and it requires passing in the objdir as first argument. It can only be run after nsComputedDOMStyleGenerated.inc is generated in the objdir. """
import re import sys
from pathlib import Path
if len(sys.argv) != 2:
print("Usage: {} objdir".format(sys.argv[0]))
exit(1)
generated = Path(sys.argv[1]) / "layout" / "style"
generated = generated / "nsComputedDOMStyleGenerated.inc"
RE_GENERATED = re.compile(r"DoGet\w+")
keeping = set() with generated.open() as f: for line in f:
m = RE_GENERATED.search(line) if m isnotNone:
keeping.add(m.group(0))
# We need to keep functions invoked by others
RE_DEF = re.compile(r"nsComputedDOMStyle::(DoGet\w+)\(\)")
RE_SRC = re.compile(r"\b(DoGet\w+)\(\)") with open(SOURCE, "r") as f: for line in f:
m = RE_DEF.search(line) if m isnotNone: continue
m = RE_SRC.search(line) if m isnotNone:
keeping.add(m.group(1))
removing = set()
remaining_lines = [] with open(HEADER, "r") as f: for line in f:
m = RE_SRC.search(line) if m isnotNone:
name = m.group(1) if name notin keeping:
print("Removing " + name)
removing.add(name) continue
remaining_lines.append(line)
with open(HEADER, "w", newline="") as f:
f.writelines(remaining_lines)
remaining_lines = []
is_removing = False with open(SOURCE, "r") as f: for line in f: if is_removing: if line == "}\n":
is_removing = False continue
m = RE_DEF.search(line) if m isnotNone:
name = m.group(1) if name in removing:
remaining_lines.pop() if remaining_lines[-1] == "\n":
remaining_lines.pop()
is_removing = True continue
remaining_lines.append(line)
with open(SOURCE, "w", newline="") as f:
f.writelines(remaining_lines)
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