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c3ca34543f
## Summary Often, when fixing, we need to dedent a block of code (e.g., if we remove an `if` and dedent its body). Today, we use LibCST to parse and adjust the indentation, which is really expensive -- but this is only really necessary if the block contains a multiline string, since naively adjusting the indentation for such a string can change the whitespace _within_ the string. This PR uses a simple dedent implementation for cases in which the block doesn't intersect with a multi-line string (or an f-string, since we don't support tracking multi-line strings for f-strings right now). We could improve this even further by using the ranges to guide the dedent function, such that we don't apply the dedent if the line starts within a multiline string. But that would also need to take f-strings into account, which is a little tricky. ## Test Plan `cargo test`
227 lines
3.6 KiB
Python
227 lines
3.6 KiB
Python
import sys
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if sys.version_info < (3,0):
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print("py2")
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else:
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print("py3")
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if sys.version_info < (3,0):
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if True:
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print("py2!")
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else:
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print("???")
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else:
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print("py3")
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if sys.version_info < (3,0): print("PY2!")
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else: print("PY3!")
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if True:
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if sys.version_info < (3,0):
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print("PY2")
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else:
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print("PY3")
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if sys.version_info < (3,0): print(1 if True else 3)
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else:
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print("py3")
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if sys.version_info < (3,0):
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def f():
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print("py2")
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else:
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def f():
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print("py3")
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print("This the next")
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if sys.version_info > (3,0):
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print("py3")
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else:
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print("py2")
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x = 1
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if sys.version_info > (3,0):
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print("py3")
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else:
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print("py2")
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# ohai
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x = 1
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if sys.version_info > (3,0): print("py3")
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else: print("py2")
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if sys.version_info > (3,):
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print("py3")
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else:
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print("py2")
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if True:
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if sys.version_info > (3,):
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print("py3")
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else:
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print("py2")
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if sys.version_info < (3,):
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print("py2")
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else:
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print("py3")
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def f():
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if sys.version_info < (3,0):
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try:
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yield
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finally:
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pass
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else:
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yield
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class C:
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def g():
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pass
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if sys.version_info < (3,0):
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def f(py2):
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pass
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else:
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def f(py3):
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pass
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def h():
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pass
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if True:
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if sys.version_info < (3,0):
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2
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else:
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3
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# comment
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if sys.version_info < (3,0):
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def f():
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print("py2")
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def g():
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print("py2")
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else:
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def f():
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print("py3")
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def g():
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print("py3")
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if True:
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if sys.version_info > (3,):
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print(3)
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# comment
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print(2+3)
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if True:
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if sys.version_info > (3,): print(3)
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if True:
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if sys.version_info > (3,):
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print(3)
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if True:
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if sys.version_info <= (3, 0):
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expected_error = []
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else:
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expected_error = [
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"<stdin>:1:5: Generator expression must be parenthesized",
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"max(1 for i in range(10), key=lambda x: x+1)",
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" ^",
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]
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if sys.version_info <= (3, 0):
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expected_error = []
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else:
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expected_error = [
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"<stdin>:1:5: Generator expression must be parenthesized",
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"max(1 for i in range(10), key=lambda x: x+1)",
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" ^",
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]
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if sys.version_info > (3,0):
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"""this
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is valid"""
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"""the indentation on
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this line is significant"""
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"this is" \
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"allowed too"
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("so is"
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"this for some reason")
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if sys.version_info > (3, 0): expected_error = \
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[]
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if sys.version_info > (3, 0): expected_error = []
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if sys.version_info > (3, 0): \
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expected_error = []
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if True:
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if sys.version_info > (3, 0): expected_error = \
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[]
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if True:
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if sys.version_info > (3, 0): expected_error = []
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if True:
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if sys.version_info > (3, 0): \
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expected_error = []
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if sys.version_info < (3,12):
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print("py3")
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if sys.version_info <= (3,12):
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print("py3")
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if sys.version_info <= (3,12):
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print("py3")
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if sys.version_info == 10000000:
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print("py3")
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if sys.version_info < (3,10000000):
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print("py3")
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if sys.version_info <= (3,10000000):
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print("py3")
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if sys.version_info > (3,12):
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print("py3")
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if sys.version_info >= (3,12):
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print("py3")
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# Slices on `sys.version_info` should be treated equivalently.
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if sys.version_info[:2] >= (3,0):
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print("py3")
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if sys.version_info[:3] >= (3,0):
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print("py3")
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if sys.version_info[:2] > (3,13):
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print("py3")
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if sys.version_info[:3] > (3,13):
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print("py3")
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if sys.version_info > (3,0):
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f"this is\
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allowed too"
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f"""the indentation on
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this line is significant"""
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"this is\
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allowed too"
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