93 lines
2.3 KiB
Rust
93 lines
2.3 KiB
Rust
#![cfg(feature = "macros")]
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//! Ensure that pyo3 macros can be used inside macro_rules!
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use pyo3::prelude::*;
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#[macro_use]
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mod common;
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macro_rules! make_struct_using_macro {
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// Ensure that one doesn't need to fall back on the escape type: tt
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// in order to macro create pyclass.
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($class_name:ident, $py_name:literal) => {
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#[pyclass(name=$py_name)]
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struct $class_name {}
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};
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}
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make_struct_using_macro!(MyBaseClass, "MyClass");
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macro_rules! set_extends_via_macro {
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($class_name:ident, $base_class:path) => {
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// Try and pass a variable into the extends parameter
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#[pyclass(extends=$base_class)]
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struct $class_name {}
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};
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}
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set_extends_via_macro!(MyClass2, MyBaseClass);
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//
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// Check that pyfunctiona nd text_signature can be called with macro arguments.
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//
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macro_rules! fn_macro {
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($sig:literal, $a_exp:expr, $b_exp:expr, $c_exp: expr) => {
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// Try and pass a variable into the extends parameter
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#[pyfunction($a_exp, $b_exp, "*", $c_exp)]
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#[pyo3(text_signature = $sig)]
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fn my_function_in_macro(a: i32, b: Option<i32>, c: i32) {
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let _ = (a, b, c);
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}
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};
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}
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fn_macro!("(a, b=None, *, c=42)", a, b = "None", c = 42);
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macro_rules! property_rename_via_macro {
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($prop_name:ident) => {
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#[pyclass]
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struct ClassWithProperty {
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member: u64,
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}
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#[pymethods]
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impl ClassWithProperty {
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#[getter($prop_name)]
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fn get_member(&self) -> u64 {
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self.member
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}
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#[setter($prop_name)]
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fn set_member(&mut self, member: u64) {
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self.member = member;
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}
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}
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};
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}
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property_rename_via_macro!(my_new_property_name);
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#[test]
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fn test_macro_rules_interactions() {
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Python::with_gil(|py| {
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let my_base = py.get_type::<MyBaseClass>();
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py_assert!(py, my_base, "my_base.__name__ == 'MyClass'");
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let my_func = wrap_pyfunction!(my_function_in_macro, py).unwrap();
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py_assert!(
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py,
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my_func,
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"my_func.__text_signature__ == '(a, b=None, *, c=42)'"
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);
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let renamed_prop = py.get_type::<ClassWithProperty>();
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py_assert!(
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py,
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renamed_prop,
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"hasattr(renamed_prop, 'my_new_property_name')"
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);
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});
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}
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