зеркало из https://github.com/mozilla/gecko-dev.git
82 строки
2.2 KiB
Python
82 строки
2.2 KiB
Python
#!/usr/bin/env python3
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"""
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Script to remove unused getters in nsComputedDOMStyle.
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It needs to be run from the topsrcdir, and it requires passing in the objdir
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as first argument. It can only be run after nsComputedDOMStyleGenerated.cpp
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is generated in the objdir.
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"""
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import re
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import sys
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from pathlib import Path
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if len(sys.argv) != 2:
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print("Usage: {} objdir".format(sys.argv[0]))
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exit(1)
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generated = Path(sys.argv[1]) / "layout" / "style"
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generated = generated / "nsComputedDOMStyleGenerated.cpp"
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RE_GENERATED = re.compile(r"DoGet\w+")
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keeping = set()
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with generated.open() as f:
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for line in f:
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m = RE_GENERATED.search(line)
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if m is not None:
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keeping.add(m.group(0))
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HEADER = "layout/style/nsComputedDOMStyle.h"
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SOURCE = "layout/style/nsComputedDOMStyle.cpp"
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# We need to keep functions invoked by others
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RE_DEF = re.compile(r"nsComputedDOMStyle::(DoGet\w+)\(\)")
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RE_SRC = re.compile(r"\b(DoGet\w+)\(\)")
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with open(SOURCE, "r") as f:
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for line in f:
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m = RE_DEF.search(line)
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if m is not None:
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continue
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m = RE_SRC.search(line)
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if m is not None:
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keeping.add(m.group(1))
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removing = set()
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remaining_lines = []
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with open(HEADER, "r") as f:
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for line in f:
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m = RE_SRC.search(line)
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if m is not None:
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name = m.group(1)
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if name not in keeping:
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print("Removing " + name)
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removing.add(name)
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continue
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remaining_lines.append(line)
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with open(HEADER, "w", newline="") as f:
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f.writelines(remaining_lines)
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remaining_lines = []
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is_removing = False
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with open(SOURCE, "r") as f:
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for line in f:
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if is_removing:
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if line == "}\n":
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is_removing = False
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continue
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m = RE_DEF.search(line)
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if m is not None:
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name = m.group(1)
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if name in removing:
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remaining_lines.pop()
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if remaining_lines[-1] == "\n":
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remaining_lines.pop()
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is_removing = True
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continue
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remaining_lines.append(line)
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with open(SOURCE, "w", newline="") as f:
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f.writelines(remaining_lines)
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