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Copy pathimp.rs
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125 lines (106 loc) · 4.15 KB
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use crate::{
builtins::{PyBytesRef, PyCode, PyModule, PyStr, PyStrRef},
import, ItemProtocol, PyObjectRef, PyRef, PyResult, PyValue, TryFromObject, VirtualMachine,
};
#[cfg(feature = "threading")]
mod lock {
use crate::stdlib::thread::RawRMutex;
use crate::vm::VirtualMachine;
use crate::PyResult;
pub(super) static IMP_LOCK: RawRMutex = RawRMutex::INIT;
pub(super) fn _imp_acquire_lock(_vm: &VirtualMachine) {
IMP_LOCK.lock()
}
pub(super) fn _imp_release_lock(vm: &VirtualMachine) -> PyResult<()> {
if !IMP_LOCK.is_locked() {
Err(vm.new_runtime_error("Global import lock not held".to_owned()))
} else {
unsafe { IMP_LOCK.unlock() };
Ok(())
}
}
pub(super) fn _imp_lock_held(_vm: &VirtualMachine) -> bool {
IMP_LOCK.is_locked()
}
}
#[cfg(not(feature = "threading"))]
mod lock {
use crate::vm::VirtualMachine;
pub(super) fn _imp_acquire_lock(_vm: &VirtualMachine) {}
pub(super) fn _imp_release_lock(_vm: &VirtualMachine) {}
pub(super) fn _imp_lock_held(_vm: &VirtualMachine) -> bool {
false
}
}
use lock::{_imp_acquire_lock, _imp_lock_held, _imp_release_lock};
fn _imp_extension_suffixes(vm: &VirtualMachine) -> PyResult {
Ok(vm.ctx.new_list(vec![]))
}
fn _imp_is_builtin(name: PyStrRef, vm: &VirtualMachine) -> bool {
vm.state.module_inits.contains_key(name.as_str())
}
fn _imp_is_frozen(name: PyStrRef, vm: &VirtualMachine) -> bool {
vm.state.frozen.contains_key(name.as_str())
}
fn _imp_create_builtin(spec: PyObjectRef, vm: &VirtualMachine) -> PyResult {
let sys_modules = vm.get_attribute(vm.sys_module.clone(), "modules").unwrap();
let name = vm.get_attribute(spec, "name")?;
let name = PyStrRef::try_from_object(vm, name)?;
if let Ok(module) = sys_modules.get_item(name.clone(), vm) {
Ok(module)
} else if let Some(make_module_func) = vm.state.module_inits.get(name.as_ref()) {
Ok(make_module_func(vm))
} else {
Ok(vm.ctx.none())
}
}
fn _imp_exec_builtin(_mod: PyRef<PyModule>) -> i32 {
// TODO: Should we do something here?
0
}
fn _imp_get_frozen_object(name: PyStrRef, vm: &VirtualMachine) -> PyResult<PyCode> {
vm.state
.frozen
.get(name.as_str())
.map(|frozen| {
let mut frozen = frozen.code.clone();
frozen.source_path = PyStr::from(format!("frozen {}", name)).into_ref(vm);
PyCode::new(frozen)
})
.ok_or_else(|| vm.new_import_error(format!("No such frozen object named {}", name), name))
}
fn _imp_init_frozen(name: PyStrRef, vm: &VirtualMachine) -> PyResult {
import::import_frozen(vm, name.as_str())
}
fn _imp_is_frozen_package(name: PyStrRef, vm: &VirtualMachine) -> PyResult<bool> {
vm.state
.frozen
.get(name.as_str())
.map(|frozen| frozen.package)
.ok_or_else(|| vm.new_import_error(format!("No such frozen object named {}", name), name))
}
fn _imp_fix_co_filename(_code: PyObjectRef, _path: PyStrRef) {
// TODO:
}
fn _imp_source_hash(_key: u64, _source: PyBytesRef, vm: &VirtualMachine) -> PyResult {
// TODO:
Ok(vm.ctx.none())
}
pub fn make_module(vm: &VirtualMachine) -> PyObjectRef {
let ctx = &vm.ctx;
py_module!(vm, "_imp", {
"extension_suffixes" => named_function!(ctx, _imp, extension_suffixes),
"acquire_lock" => named_function!(ctx, _imp, acquire_lock),
"release_lock" => named_function!(ctx, _imp, release_lock),
"lock_held" => named_function!(ctx, _imp, lock_held),
"is_builtin" => named_function!(ctx, _imp, is_builtin),
"is_frozen" => named_function!(ctx, _imp, is_frozen),
"create_builtin" => named_function!(ctx, _imp, create_builtin),
"exec_builtin" => named_function!(ctx, _imp, exec_builtin),
"get_frozen_object" => named_function!(ctx, _imp, get_frozen_object),
"init_frozen" => named_function!(ctx, _imp, init_frozen),
"is_frozen_package" => named_function!(ctx, _imp, is_frozen_package),
"_fix_co_filename" => named_function!(ctx, _imp, fix_co_filename),
"source_hash" => named_function!(ctx, _imp, source_hash),
})
}