pyo3/pytests/src/buf_and_str.rs
2022-04-07 23:14:45 +02:00

49 lines
1.2 KiB
Rust

#![cfg(not(Py_LIMITED_API))]
//! Objects related to PyBuffer and PyStr
use pyo3::buffer::PyBuffer;
use pyo3::prelude::*;
use pyo3::types::{PyBytes, PyString};
/// This is for confirming that PyBuffer does not cause memory leak
#[pyclass]
struct BytesExtractor {}
#[pymethods]
impl BytesExtractor {
#[new]
pub fn __new__() -> Self {
BytesExtractor {}
}
#[staticmethod]
pub fn from_bytes(bytes: &PyBytes) -> PyResult<usize> {
let byte_vec: Vec<u8> = bytes.extract()?;
Ok(byte_vec.len())
}
#[staticmethod]
pub fn from_str(string: &PyString) -> PyResult<usize> {
let rust_string: String = string.extract()?;
Ok(rust_string.len())
}
#[staticmethod]
pub fn from_str_lossy(string: &PyString) -> usize {
let rust_string_lossy: String = string.to_string_lossy().to_string();
rust_string_lossy.len()
}
#[staticmethod]
pub fn from_buffer(buf: &PyAny) -> PyResult<usize> {
let buf = PyBuffer::<u8>::get(buf)?;
Ok(buf.item_count())
}
}
#[pymodule]
pub fn buf_and_str(_py: Python<'_>, m: &PyModule) -> PyResult<()> {
m.add_class::<BytesExtractor>()?;
Ok(())
}