datafusion_python/expr/
cast.rs

1// Licensed to the Apache Software Foundation (ASF) under one
2// or more contributor license agreements.  See the NOTICE file
3// distributed with this work for additional information
4// regarding copyright ownership.  The ASF licenses this file
5// to you under the Apache License, Version 2.0 (the
6// "License"); you may not use this file except in compliance
7// with the License.  You may obtain a copy of the License at
8//
9//   http://www.apache.org/licenses/LICENSE-2.0
10//
11// Unless required by applicable law or agreed to in writing,
12// software distributed under the License is distributed on an
13// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
14// KIND, either express or implied.  See the License for the
15// specific language governing permissions and limitations
16// under the License.
17
18use crate::{common::data_type::PyDataType, expr::PyExpr};
19use datafusion::logical_expr::{Cast, TryCast};
20use pyo3::prelude::*;
21
22#[pyclass(name = "Cast", module = "datafusion.expr", subclass)]
23#[derive(Clone)]
24pub struct PyCast {
25    cast: Cast,
26}
27
28impl From<PyCast> for Cast {
29    fn from(cast: PyCast) -> Self {
30        cast.cast
31    }
32}
33
34impl From<Cast> for PyCast {
35    fn from(cast: Cast) -> PyCast {
36        PyCast { cast }
37    }
38}
39
40#[pymethods]
41impl PyCast {
42    fn expr(&self) -> PyResult<PyExpr> {
43        Ok((*self.cast.expr).clone().into())
44    }
45
46    fn data_type(&self) -> PyResult<PyDataType> {
47        Ok(self.cast.data_type.clone().into())
48    }
49}
50
51#[pyclass(name = "TryCast", module = "datafusion.expr", subclass)]
52#[derive(Clone)]
53pub struct PyTryCast {
54    try_cast: TryCast,
55}
56
57impl From<PyTryCast> for TryCast {
58    fn from(try_cast: PyTryCast) -> Self {
59        try_cast.try_cast
60    }
61}
62
63impl From<TryCast> for PyTryCast {
64    fn from(try_cast: TryCast) -> PyTryCast {
65        PyTryCast { try_cast }
66    }
67}
68
69#[pymethods]
70impl PyTryCast {
71    fn expr(&self) -> PyResult<PyExpr> {
72        Ok((*self.try_cast.expr).clone().into())
73    }
74
75    fn data_type(&self) -> PyResult<PyDataType> {
76        Ok(self.try_cast.data_type.clone().into())
77    }
78}
datafusion_python/expr/cast.rs

datafusion_python/expr/
cast.rs
