src/expr/binary_expr.rs

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// or more contributor license agreements.  See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership.  The ASF licenses this file
// to you under the Apache License, Version 2.0 (the
// "License"); you may not use this file except in compliance
// with the License.  You may obtain a copy of the License at
//
//   http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing,
// software distributed under the License is distributed on an
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// KIND, either express or implied.  See the License for the
// specific language governing permissions and limitations
// under the License.

use datafusion::logical_expr::BinaryExpr;
use pyo3::prelude::*;

use crate::expr::PyExpr;

#[pyclass(
    from_py_object,
    frozen,
    name = "BinaryExpr",
    module = "datafusion.expr",
    subclass
)]
#[derive(Clone)]
pub struct PyBinaryExpr {
    expr: BinaryExpr,
}

impl From<PyBinaryExpr> for BinaryExpr {
    fn from(expr: PyBinaryExpr) -> Self {
        expr.expr
    }
}

impl From<BinaryExpr> for PyBinaryExpr {
    fn from(expr: BinaryExpr) -> PyBinaryExpr {
        PyBinaryExpr { expr }
    }
}

#[pymethods]
impl PyBinaryExpr {
    fn left(&self) -> PyExpr {
        self.expr.left.as_ref().clone().into()
    }

    fn right(&self) -> PyExpr {
        self.expr.right.as_ref().clone().into()
    }

    fn op(&self) -> String {
        format!("{}", self.expr.op)
    }

    fn __repr__(&self) -> PyResult<String> {
        Ok(format!("{}", self.expr))
    }
}