concepts.dm.crow.crow_expression_utils.crow_replace_expression_variables

crow_replace_expression_variables(expr, mappings=None, ctx=None)

Replace variables in an expression with other expressions. Allowed replacements are:

• Replace a VariableExpression with a Variable or a ValueOutputExpression.

• Replace a FunctionApplicationExpression with a Variable or a ValueOutputExpression.

Parameters:

• expr (Expression) – the expression to replace variables.

• mappings (Dict[FunctionApplicationExpression | VariableExpression, Variable | ObjectOrValueOutputExpression] | None) – a dictionary of {expression: sub-expression} to replace the expression with the sub-expression.

• ctx (ExpressionDefinitionContext | None) – a ExpressionDefinitionContext.

Return type:

ObjectOrValueOutputExpression | VariableAssignmentExpression