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update string comparison in clang-format.py 

Summary: Python 3.8 introduces a SyntaxWarning about string comparisons with 'is'. This commit updates the string comparison in clang-format.py that is done with 'is not' to '!='. This should not break compatibility with older python versions (tested 3.4.9, 2.7.17, 2.7.5, 3.8.0).

Reviewers: MyDeveloperDay, klimek, llvm-commits, cfe-commits

Reviewed By: MyDeveloperDay, klimek

Patch By: pseyfert

Tags: #clang-format, #clang

Differential Revision: https://reviews.llvm.org/D70664
This commit is contained in:
mydeveloperday 2019-12-06 17:36:56 +00:00 committed by paulhoad
parent b8e03ff503
commit 79f8c20e2c
1 changed files with 1 additions and 1 deletions
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2
clang/tools/clang-format/clang-format.py
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@ -136,7 +136,7 @@ def main():
lines = lines[1:-1]
sequence = difflib.SequenceMatcher(None, buf, lines)
for op in reversed(sequence.get_opcodes()):
if op[0] is not 'equal':
if op[0] != 'equal':
vim.current.buffer[op[1]:op[2]] = lines[op[3]:op[4]]
if output.get('IncompleteFormat'):
print('clang-format: incomplete (syntax errors)')