pytypeinfo: rename is_instance to is_type_of
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@ -26,6 +26,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
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- Change formatting of `PyDowncastError` messages to be closer to Python's builtin error messages. [#1212](https://github.com/PyO3/pyo3/pull/1212)
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- Change `Debug` and `Display` impls for `PyException` to be consistent with `PyAny`. [#1275](https://github.com/PyO3/pyo3/pull/1275)
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- Change `Debug` impl of `PyErr` to output more helpful information (acquiring the GIL if necessary). [#1275](https://github.com/PyO3/pyo3/pull/1275)
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- Rename `PyTypeInfo::is_instance` and `PyTypeInfo::is_exact_instance` to `PyTypeInfo::is_type_of` and `PyTypeInfo::is_exact_type_of`. [#1278](https://github.com/PyO3/pyo3/pull/1278)
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### Removed
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- Remove deprecated ffi definitions `PyUnicode_AsUnicodeCopy`, `PyUnicode_GetMax`, `_Py_CheckRecursionLimit`, `PyObject_AsCharBuffer`, `PyObject_AsReadBuffer`, `PyObject_CheckReadBuffer` and `PyObject_AsWriteBuffer`, which will be removed in Python 3.10. [#1217](https://github.com/PyO3/pyo3/pull/1217)
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@ -326,7 +326,7 @@ where
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fn try_from<V: Into<&'v PyAny>>(value: V) -> Result<&'v Self, PyDowncastError<'v>> {
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let value = value.into();
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unsafe {
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if T::is_instance(value) {
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if T::is_type_of(value) {
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Ok(Self::try_from_unchecked(value))
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} else {
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Err(PyDowncastError::new(value, T::NAME))
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@ -337,7 +337,7 @@ where
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fn try_from_exact<V: Into<&'v PyAny>>(value: V) -> Result<&'v Self, PyDowncastError<'v>> {
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let value = value.into();
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unsafe {
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if T::is_exact_instance(value) {
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if T::is_exact_type_of(value) {
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Ok(Self::try_from_unchecked(value))
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} else {
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Err(PyDowncastError::new(value, T::NAME))
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@ -358,7 +358,7 @@ where
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fn try_from<V: Into<&'v PyAny>>(value: V) -> Result<&'v Self, PyDowncastError<'v>> {
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let value = value.into();
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unsafe {
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if T::is_instance(value) {
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if T::is_type_of(value) {
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Ok(Self::try_from_unchecked(value))
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} else {
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Err(PyDowncastError::new(value, T::NAME))
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@ -368,7 +368,7 @@ where
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fn try_from_exact<V: Into<&'v PyAny>>(value: V) -> Result<&'v Self, PyDowncastError<'v>> {
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let value = value.into();
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unsafe {
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if T::is_exact_instance(value) {
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if T::is_exact_type_of(value) {
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Ok(Self::try_from_unchecked(value))
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} else {
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Err(PyDowncastError::new(value, T::NAME))
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@ -434,11 +434,39 @@ where
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#[cfg(test)]
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mod test {
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use crate::types::PyList;
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use crate::Python;
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use crate::types::{IntoPyDict, PyAny, PyDict, PyList};
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use crate::{Python, ToPyObject};
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use super::PyTryFrom;
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#[test]
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fn test_try_from() {
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let gil = Python::acquire_gil();
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let py = gil.python();
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let list: &PyAny = vec![3, 6, 5, 4, 7].to_object(py).into_ref(py);
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let dict: &PyAny = vec![("reverse", true)].into_py_dict(py).as_ref();
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assert!(PyList::try_from(list).is_ok());
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assert!(PyDict::try_from(dict).is_ok());
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assert!(PyAny::try_from(list).is_ok());
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assert!(PyAny::try_from(dict).is_ok());
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}
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#[test]
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fn test_try_from_exact() {
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let gil = Python::acquire_gil();
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let py = gil.python();
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let list: &PyAny = vec![3, 6, 5, 4, 7].to_object(py).into_ref(py);
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let dict: &PyAny = vec![("reverse", true)].into_py_dict(py).as_ref();
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assert!(PyList::try_from_exact(list).is_ok());
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assert!(PyDict::try_from_exact(dict).is_ok());
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assert!(PyAny::try_from_exact(list).is_err());
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assert!(PyAny::try_from_exact(dict).is_err());
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}
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#[test]
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fn test_try_from_unchecked() {
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let gil = Python::acquire_gil();
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@ -104,13 +104,13 @@ pub unsafe trait PyTypeInfo: Sized {
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/// PyTypeObject instance for this type.
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fn type_object_raw(py: Python) -> *mut ffi::PyTypeObject;
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/// Check if `*mut ffi::PyObject` is instance of this type
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fn is_instance(object: &PyAny) -> bool {
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/// Checks if `object` is an instance of this type or a subclass of this type.
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fn is_type_of(object: &PyAny) -> bool {
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unsafe { ffi::PyObject_TypeCheck(object.as_ptr(), Self::type_object_raw(object.py())) != 0 }
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}
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/// Check if `*mut ffi::PyObject` is exact instance of this type
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fn is_exact_instance(object: &PyAny) -> bool {
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/// Checks if `object` is an instance of this type.
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fn is_exact_type_of(object: &PyAny) -> bool {
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unsafe { ffi::Py_TYPE(object.as_ptr()) == Self::type_object_raw(object.py()) }
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}
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}
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@ -184,7 +184,7 @@ macro_rules! pyobject_native_type_convert(
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}
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#[allow(unused_unsafe)]
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fn is_instance(ptr: &$crate::PyAny) -> bool {
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fn is_type_of(ptr: &$crate::PyAny) -> bool {
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use $crate::AsPyPointer;
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unsafe { $checkfunction(ptr.as_ptr()) > 0 }
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}
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