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// Licensed to the Apache Software Foundation (ASF) under one
// 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
// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
// KIND, either express or implied. See the License for the
// specific language governing permissions and limitations
// under the License.
use datafusion::logical_expr::{Cast, TryCast};
use pyo3::prelude::*;
use crate::common::data_type::PyDataType;
use crate::expr::PyExpr;
#[pyclass(
from_py_object,
frozen,
name = "Cast",
module = "datafusion.expr",
subclass
)]
#[derive(Clone)]
pub struct PyCast {
cast: Cast,
}
impl From<PyCast> for Cast {
fn from(cast: PyCast) -> Self {
cast.cast
}
}
impl From<Cast> for PyCast {
fn from(cast: Cast) -> PyCast {
PyCast { cast }
}
}
#[pymethods]
impl PyCast {
fn expr(&self) -> PyResult<PyExpr> {
Ok((*self.cast.expr).clone().into())
}
fn data_type(&self) -> PyResult<PyDataType> {
Ok(self.cast.field.data_type().clone().into())
}
}
#[pyclass(from_py_object, name = "TryCast", module = "datafusion.expr", subclass)]
#[derive(Clone)]
pub struct PyTryCast {
try_cast: TryCast,
}
impl From<PyTryCast> for TryCast {
fn from(try_cast: PyTryCast) -> Self {
try_cast.try_cast
}
}
impl From<TryCast> for PyTryCast {
fn from(try_cast: TryCast) -> PyTryCast {
PyTryCast { try_cast }
}
}
#[pymethods]
impl PyTryCast {
fn expr(&self) -> PyResult<PyExpr> {
Ok((*self.try_cast.expr).clone().into())
}
fn data_type(&self) -> PyResult<PyDataType> {
Ok(self.try_cast.field.data_type().clone().into())
}
}