Add eq=False to node classes
#1500
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This sets `eq=False` for node dataclasses as nodes should be unique, and equivalence methods should be used for checking as the nodes represent recursive data structures. Without this, comparisons or using nodes as keys can be slow as the generated equals function will traverse the recursive structure.
courtneyholcomb
approved these changes
Nov 5, 2024
| @@ -57,7 +57,7 @@ def visit_node(self, node: DagNode) -> VisitorOutputT: # noqa: D102 | |||
| DagNodeT = TypeVar("DagNodeT", bound="DagNode") | |||
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| @dataclass(frozen=True) | |||
| @dataclass(frozen=True, eq=False) | |||
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Can we add a comment here explaining essentially what you explained in the PR description? Will likely be helpful to future devs.
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This sets
eq=Falsefor node dataclasses as nodes should be unique, and equivalence methods should be used for checking as the nodes represent recursive data structures. Without this, comparisons or using nodes as keys can be slow as the generated equals function will traverse the recursive structure.