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youknowdot
9ea138c889
Ignore incidental formatted-value whitespace while retaining brace-leading safeguards and literal/debug text. Include compile-only annotation-constant coverage. Assisted-by: OpenAI Codex:model identifier unavailable
36 lines
1.1 KiB
Python
36 lines
1.1 KiB
Python
from typing import get_type_hints
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# Future f-string annotations canonicalize fields, not their literal padding.
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for formatted, expected in (
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("f'{ value }'", "f'{value}'"),
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("f'{ value = }'", "f' value = {value!r}'"),
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("f'{ value : >8}'", "f'{value: >8}'"),
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("f'{ {1, 2} }'", "f'{ {1, 2}}'"),
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):
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formatted_code = compile(
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"from __future__ import annotations\nx: " + formatted, "<test>", "exec"
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)
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assert expected in formatted_code.co_consts
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def func(s: str) -> int:
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return int(s)
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hints = get_type_hints(func)
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# The order of type hints matters for certain functions
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# e.g. functools.singledispatch
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assert list(hints.items()) == [('s', str), ('return', int)]
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# Template format specs use canonical expression text inside future annotations.
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for template, expected in (
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("t'{value:04}'", "t'{value:04}'"),
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("t'{value:{(width)}}'", "t'{value:{width}}'"),
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("t'{(value):{(width)!r}}'", "t'{(value):{width!r}}'"),
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):
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annotation_code = compile(
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"from __future__ import annotations\nx: " + template, "<test>", "exec"
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)
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assert expected in annotation_code.co_consts
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