rdblue commented on code in PR #4815:
URL: https://github.com/apache/iceberg/pull/4815#discussion_r877593469
##########
python/src/iceberg/expressions/base.py:
##########
@@ -346,3 +346,116 @@ def bind(self, schema: Schema, case_sensitive: bool) ->
BoundReference:
raise ValueError(f"Cannot find field '{self.name}' in schema:
{schema}")
return BoundReference(field=field,
accessor=schema.accessor_for_field(field.field_id))
+
+
+class BooleanExpressionVisitor(ABC):
+ @abstractmethod
+ def visit_always_true(self) -> BooleanExpression:
+ """Visit method for an AlwaysTrue boolean expression
+
+ Note: This visit method has no arguments since AlwaysTrue instances
have no context.
+
+ Returns:
+ BooleanExpression: The resulting expression after any
modifications performed by the visitor
+ """
+
+ @abstractmethod
+ def visit_always_false(self) -> BooleanExpression:
+ """Visit method for an AlwaysFalse boolean expression
+
+ Note: This visit method has no arguments since AlwaysFalse instances
have no context.
+
+ Returns:
+ BooleanExpression: The resulting expression after any
modifications performed by the visitor
+ """
+
+ @abstractmethod
+ def visit_not(self, result: BooleanExpression) -> BooleanExpression:
+ """Visit method for a Not boolean expression
+
+ Args:
+ left (BooleanExpression): The left side of the expression
+ right (BooleanExpression): The right side of the expression
Review Comment:
Looks like this was copy-pasted and not updated.
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