Method has

dedalus/core/future.py:108–115

Determine if tree contains any specified operands/operators.

(self, *vars)

        return atoms

    def has(self, *vars):
        """Determine if tree contains any specified operands/operators."""
        # Check for matching operator
        if any(isinstance(self, var) for var in vars if isinstance(var, type)):
            return True
        # Check arguments
        else:
            return any(arg.has(*vars) for arg in self.args if isinstance(arg, Operand))

    def replace(self, old, new):
        """Replace specified operand/operator."""