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 datafusion::logical_expr::{Cast, TryCast};
19use pyo3::prelude::*;
20
21use crate::common::data_type::PyDataType;
22use crate::expr::PyExpr;
23
24#[pyclass(frozen, name = "Cast", module = "datafusion.expr", subclass)]
25#[derive(Clone)]
26pub struct PyCast {
27    cast: Cast,
28}
29
30impl From<PyCast> for Cast {
31    fn from(cast: PyCast) -> Self {
32        cast.cast
33    }
34}
35
36impl From<Cast> for PyCast {
37    fn from(cast: Cast) -> PyCast {
38        PyCast { cast }
39    }
40}
41
42#[pymethods]
43impl PyCast {
44    fn expr(&self) -> PyResult<PyExpr> {
45        Ok((*self.cast.expr).clone().into())
46    }
47
48    fn data_type(&self) -> PyResult<PyDataType> {
49        Ok(self.cast.data_type.clone().into())
50    }
51}
52
53#[pyclass(name = "TryCast", module = "datafusion.expr", subclass)]
54#[derive(Clone)]
55pub struct PyTryCast {
56    try_cast: TryCast,
57}
58
59impl From<PyTryCast> for TryCast {
60    fn from(try_cast: PyTryCast) -> Self {
61        try_cast.try_cast
62    }
63}
64
65impl From<TryCast> for PyTryCast {
66    fn from(try_cast: TryCast) -> PyTryCast {
67        PyTryCast { try_cast }
68    }
69}
70
71#[pymethods]
72impl PyTryCast {
73    fn expr(&self) -> PyResult<PyExpr> {
74        Ok((*self.try_cast.expr).clone().into())
75    }
76
77    fn data_type(&self) -> PyResult<PyDataType> {
78        Ok(self.try_cast.data_type.clone().into())
79    }
80}
datafusion_python/expr/cast.rs

datafusion_python/expr/
cast.rs
