25 lines
768 B
Python
25 lines
768 B
Python
"""AST triggers that are used for fine-grained dependency handling."""
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from typing_extensions import Final
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# Used as a suffix for triggers to handle "from m import *" dependencies (see also
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# make_wildcard_trigger)
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WILDCARD_TAG: Final = "[wildcard]"
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def make_trigger(name: str) -> str:
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return f'<{name}>'
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def make_wildcard_trigger(module: str) -> str:
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"""Special trigger fired when any top-level name is changed in a module.
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Note that this is different from a module trigger, as module triggers are only
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fired if the module is created, deleted, or replaced with a non-module, whereas
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a wildcard trigger is triggered for namespace changes.
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This is used for "from m import *" dependencies.
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"""
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return f'<{module}{WILDCARD_TAG}>'
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