Tipragot
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Cela permet de ne pas avoir de problèmes de compatibilité car python est dans le git.
56 lines
1.8 KiB
Python
56 lines
1.8 KiB
Python
# Licensed under the LGPL: https://www.gnu.org/licenses/old-licenses/lgpl-2.1.en.html
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# For details: https://github.com/pylint-dev/astroid/blob/main/LICENSE
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# Copyright (c) https://github.com/pylint-dev/astroid/blob/main/CONTRIBUTORS.txt
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"""
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Astroid hook for the Hypothesis library.
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Without this hook pylint reports no-value-for-parameter for use of strategies
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defined using the `@hypothesis.strategies.composite` decorator. For example:
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from hypothesis import strategies as st
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@st.composite
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def a_strategy(draw):
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return draw(st.integers())
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a_strategy()
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"""
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from astroid.manager import AstroidManager
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from astroid.nodes.scoped_nodes import FunctionDef
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COMPOSITE_NAMES = (
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"composite",
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"st.composite",
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"strategies.composite",
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"hypothesis.strategies.composite",
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)
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def is_decorated_with_st_composite(node) -> bool:
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"""Return whether a decorated node has @st.composite applied."""
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if node.decorators and node.args.args and node.args.args[0].name == "draw":
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for decorator_attribute in node.decorators.nodes:
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if decorator_attribute.as_string() in COMPOSITE_NAMES:
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return True
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return False
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def remove_draw_parameter_from_composite_strategy(node):
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"""Given that the FunctionDef is decorated with @st.composite, remove the
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first argument (`draw`) - it's always supplied by Hypothesis so we don't
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need to emit the no-value-for-parameter lint.
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"""
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del node.args.args[0]
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del node.args.annotations[0]
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del node.args.type_comment_args[0]
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return node
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def register(manager: AstroidManager) -> None:
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manager.register_transform(
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node_class=FunctionDef,
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transform=remove_draw_parameter_from_composite_strategy,
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predicate=is_decorated_with_st_composite,
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)
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