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Copy pathmoduleobject.rs
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90 lines (80 loc) · 3.32 KB
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use crate::PyObject;
use crate::object::define_py_check;
use crate::pystate::with_vm;
use crate::util::{CStrExt, FfiPtrExt};
use rustpython_vm::AsObject;
use rustpython_vm::builtins::{PyModule, PyStr};
define_py_check!(fn PyModule_Check, types.module_type);
define_py_check!(exact fn PyModule_CheckExact, types.module_type);
#[unsafe(no_mangle)]
pub unsafe extern "C" fn PyModule_GetNameObject(module: *mut PyObject) -> *mut PyObject {
with_vm(|vm| {
let module = unsafe { module.assume_borrowed_and_cast::<PyModule>(vm) }?;
let dict = module.dict();
let name = dict
.get_item_opt(rustpython_vm::identifier!(vm, __name__), vm)?
.and_then(|obj| obj.downcast_ref::<PyStr>().map(ToOwned::to_owned));
name.ok_or_else(|| vm.new_system_error("nameless module"))
})
}
#[unsafe(no_mangle)]
pub unsafe extern "C" fn PyModule_GetFilenameObject(module: *mut PyObject) -> *mut PyObject {
with_vm(|vm| {
let module = unsafe { module.assume_borrowed_and_cast::<PyModule>(vm) }?;
let dict = module.dict();
let filename = dict
.get_item_opt(rustpython_vm::identifier!(vm, __file__), vm)?
.and_then(|obj| obj.downcast_ref::<PyStr>().map(ToOwned::to_owned));
filename.ok_or_else(|| vm.new_system_error("module filename missing"))
})
}
#[unsafe(no_mangle)]
pub unsafe extern "C" fn PyModule_NewObject(name: *mut PyObject) -> *mut PyObject {
with_vm(|vm| -> rustpython_vm::PyResult<_> {
let name = unsafe { name.assume_borrowed_and_cast::<PyStr>(vm) }?;
let name = name
.to_str()
.ok_or_else(|| vm.new_system_error("module name must be valid UTF-8"))?;
Ok(vm.new_module(name, vm.ctx.new_dict(), None))
})
}
#[unsafe(no_mangle)]
pub unsafe extern "C" fn PyModule_New(name: *const core::ffi::c_char) -> *mut PyObject {
with_vm(|vm| {
let name_str = unsafe { name.try_as_str(vm) }?;
Ok(vm.new_module(name_str, vm.ctx.new_dict(), None))
})
}
#[unsafe(no_mangle)]
pub unsafe extern "C" fn PyModule_GetDict(module: *mut PyObject) -> *mut PyObject {
with_vm(|vm| {
let module = unsafe { module.assume_borrowed_and_cast::<PyModule>(vm) }?;
Ok(module.dict().as_object().as_raw().cast_mut())
})
}
#[cfg(test)]
mod tests {
use pyo3::prelude::*;
use pyo3::types::{PyAnyMethods, PyDict, PyModule, PyString};
#[test]
fn module_new_and_get_dict() {
Python::attach(|py| {
let mod_name = c"dynamic_mod";
let m_ptr = unsafe { super::PyModule_New(mod_name.as_ptr()) };
assert!(!m_ptr.is_null());
let m = unsafe { pyo3::Bound::from_owned_ptr(py, m_ptr.cast()) };
assert!(m.is_instance_of::<PyModule>());
let name_ptr = unsafe { super::PyModule_GetNameObject(m_ptr) };
assert!(!name_ptr.is_null());
let name = unsafe { pyo3::Bound::from_owned_ptr(py, name_ptr.cast()) };
assert_eq!(
name.cast::<PyString>().unwrap().to_str().unwrap(),
"dynamic_mod"
);
let dict_ptr = unsafe { super::PyModule_GetDict(m_ptr) };
assert!(!dict_ptr.is_null());
let dict = unsafe { pyo3::Bound::from_borrowed_ptr(py, dict_ptr.cast()) };
assert!(dict.is_instance_of::<PyDict>());
});
}
}