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move repeated code to private helper function

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Yay295 2024-08-16 09:08:18 -05:00 committed by Yay295
parent 35a70e4b97
commit cd76b48533
1 changed files with 11 additions and 15 deletions
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26
src/PIL/TiffImagePlugin.py
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@ -2080,38 +2080,34 @@ class AppendingTiffWriter:
(value,) = struct.unpack(self.longFmt, self.f.read(4))
return value
@staticmethod
def _verify_bytes_written(bytes_written: int | None, expected: int) -> None:
if bytes_written is not None and bytes_written != expected:
msg = f"wrote only {bytes_written} bytes but wanted {expected}"
raise RuntimeError(msg)
def rewriteLastShortToLong(self, value: int) -> None:
self.f.seek(-2, os.SEEK_CUR)
bytes_written = self.f.write(struct.pack(self.longFmt, value))
if bytes_written is not None and bytes_written != 4:
msg = f"wrote only {bytes_written} bytes but wanted 4"
raise RuntimeError(msg)
self._verify_bytes_written(bytes_written, 4)
def rewriteLastShort(self, value: int) -> None:
self.f.seek(-2, os.SEEK_CUR)
bytes_written = self.f.write(struct.pack(self.shortFmt, value))
if bytes_written is not None and bytes_written != 2:
msg = f"wrote only {bytes_written} bytes but wanted 2"
raise RuntimeError(msg)
self._verify_bytes_written(bytes_written, 2)
def rewriteLastLong(self, value: int) -> None:
self.f.seek(-4, os.SEEK_CUR)
bytes_written = self.f.write(struct.pack(self.longFmt, value))
if bytes_written is not None and bytes_written != 4:
msg = f"wrote only {bytes_written} bytes but wanted 4"
raise RuntimeError(msg)
self._verify_bytes_written(bytes_written, 4)
def writeShort(self, value: int) -> None:
bytes_written = self.f.write(struct.pack(self.shortFmt, value))
if bytes_written is not None and bytes_written != 2:
msg = f"wrote only {bytes_written} bytes but wanted 2"
raise RuntimeError(msg)
self._verify_bytes_written(bytes_written, 2)
def writeLong(self, value: int) -> None:
bytes_written = self.f.write(struct.pack(self.longFmt, value))
if bytes_written is not None and bytes_written != 4:
msg = f"wrote only {bytes_written} bytes but wanted 4"
raise RuntimeError(msg)
self._verify_bytes_written(bytes_written, 4)
def close(self) -> None:
self.finalize()