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Copy pathsys.rs
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1356 lines (1199 loc) · 43.1 KB
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use crate::{Py, PyResult, VirtualMachine, builtins::PyModule, convert::ToPyObject};
pub(crate) use sys::{__module_def, DOC, MAXSIZE, MULTIARCH, UnraisableHookArgsData};
#[pymodule]
mod sys {
use crate::{
AsObject, PyObject, PyObjectRef, PyRef, PyRefExact, PyResult,
builtins::{
PyBaseExceptionRef, PyDictRef, PyNamespace, PyStr, PyStrRef, PyTupleRef, PyTypeRef,
},
common::{
ascii,
hash::{PyHash, PyUHash},
},
convert::ToPyObject,
frame::FrameRef,
function::{FuncArgs, KwArgs, OptionalArg, PosArgs},
stdlib::{builtins, warnings::warn},
types::PyStructSequence,
version,
vm::{Settings, VirtualMachine},
};
use num_traits::ToPrimitive;
use std::{
env::{self, VarError},
io::Read,
path,
sync::atomic::Ordering,
};
#[cfg(windows)]
use windows_sys::Win32::{
Foundation::MAX_PATH,
Storage::FileSystem::{
GetFileVersionInfoSizeW, GetFileVersionInfoW, VS_FIXEDFILEINFO, VerQueryValueW,
},
System::LibraryLoader::{GetModuleFileNameW, GetModuleHandleW},
};
// not the same as CPython (e.g. rust's x86_x64-unknown-linux-gnu is just x86_64-linux-gnu)
// but hopefully that's just an implementation detail? TODO: copy CPython's multiarch exactly,
// https://github.com/python/cpython/blob/3.8/configure.ac#L725
pub(crate) const MULTIARCH: &str = env!("RUSTPYTHON_TARGET_TRIPLE");
#[pyattr(name = "_rustpython_debugbuild")]
const RUSTPYTHON_DEBUGBUILD: bool = cfg!(debug_assertions);
#[pyattr(name = "abiflags")]
pub(crate) const ABIFLAGS: &str = "";
#[pyattr(name = "api_version")]
const API_VERSION: u32 = 0x0; // what C api?
#[pyattr(name = "copyright")]
const COPYRIGHT: &str = "Copyright (c) 2019 RustPython Team";
#[pyattr(name = "float_repr_style")]
const FLOAT_REPR_STYLE: &str = "short";
#[pyattr(name = "_framework")]
const FRAMEWORK: &str = "";
#[pyattr(name = "hexversion")]
const HEXVERSION: usize = version::VERSION_HEX;
#[pyattr(name = "maxsize")]
pub(crate) const MAXSIZE: isize = isize::MAX;
#[pyattr(name = "maxunicode")]
const MAXUNICODE: u32 = std::char::MAX as u32;
#[pyattr(name = "platform")]
pub(crate) const PLATFORM: &str = {
cfg_if::cfg_if! {
if #[cfg(target_os = "linux")] {
"linux"
} else if #[cfg(target_os = "android")] {
"android"
} else if #[cfg(target_os = "macos")] {
"darwin"
} else if #[cfg(target_os = "ios")] {
"ios"
} else if #[cfg(windows)] {
"win32"
} else if #[cfg(target_os = "wasi")] {
"wasi"
} else {
"unknown"
}
}
};
#[pyattr(name = "ps1")]
const PS1: &str = ">>>>> ";
#[pyattr(name = "ps2")]
const PS2: &str = "..... ";
#[cfg(windows)]
#[pyattr(name = "_vpath")]
const VPATH: Option<&'static str> = None; // TODO: actual VPATH value
#[cfg(windows)]
#[pyattr(name = "dllhandle")]
const DLLHANDLE: usize = 0;
#[pyattr]
const fn default_prefix(_vm: &VirtualMachine) -> &'static str {
// TODO: the windows one doesn't really make sense
if cfg!(windows) { "C:" } else { "/usr/local" }
}
#[pyattr]
fn prefix(vm: &VirtualMachine) -> &'static str {
option_env!("RUSTPYTHON_PREFIX").unwrap_or_else(|| default_prefix(vm))
}
#[pyattr]
fn base_prefix(vm: &VirtualMachine) -> &'static str {
option_env!("RUSTPYTHON_BASEPREFIX").unwrap_or_else(|| prefix(vm))
}
#[pyattr]
fn exec_prefix(vm: &VirtualMachine) -> &'static str {
option_env!("RUSTPYTHON_BASEPREFIX").unwrap_or_else(|| prefix(vm))
}
#[pyattr]
fn base_exec_prefix(vm: &VirtualMachine) -> &'static str {
option_env!("RUSTPYTHON_BASEPREFIX").unwrap_or_else(|| exec_prefix(vm))
}
#[pyattr]
fn platlibdir(_vm: &VirtualMachine) -> &'static str {
option_env!("RUSTPYTHON_PLATLIBDIR").unwrap_or("lib")
}
// alphabetical order with segments of pyattr and others
#[pyattr]
fn argv(vm: &VirtualMachine) -> Vec<PyObjectRef> {
vm.state
.settings
.argv
.iter()
.map(|arg| vm.ctx.new_str(arg.clone()).into())
.collect()
}
#[pyattr]
fn builtin_module_names(vm: &VirtualMachine) -> PyTupleRef {
let mut module_names: Vec<_> = vm.state.module_inits.keys().cloned().collect();
module_names.push("sys".into());
module_names.push("builtins".into());
module_names.sort();
vm.ctx.new_tuple(
module_names
.into_iter()
.map(|n| vm.ctx.new_str(n).into())
.collect(),
)
}
#[pyattr]
fn byteorder(vm: &VirtualMachine) -> PyStrRef {
// https://doc.rust-lang.org/reference/conditional-compilation.html#target_endian
vm.ctx
.intern_str(if cfg!(target_endian = "little") {
"little"
} else if cfg!(target_endian = "big") {
"big"
} else {
"unknown"
})
.to_owned()
}
#[pyattr]
fn _base_executable(vm: &VirtualMachine) -> PyObjectRef {
let ctx = &vm.ctx;
// First check __PYVENV_LAUNCHER__ environment variable
if let Ok(var) = env::var("__PYVENV_LAUNCHER__") {
return ctx.new_str(var).into();
}
// Try to detect if we're running from a venv by looking for pyvenv.cfg
if let Some(base_exe) = get_venv_base_executable() {
return ctx.new_str(base_exe).into();
}
executable(vm)
}
/// Try to find base executable from pyvenv.cfg (see getpath.py)
fn get_venv_base_executable() -> Option<String> {
// TODO: This is a minimal implementation of getpath.py
// To fully support all cases, `getpath.py` should be placed in @crates/vm/Lib/python_builtins/
// Get current executable path
#[cfg(not(target_arch = "wasm32"))]
let exe_path = {
let exec_arg = env::args_os().next()?;
which::which(exec_arg).ok()?
};
#[cfg(target_arch = "wasm32")]
let exe_path = {
let exec_arg = env::args().next()?;
path::PathBuf::from(exec_arg)
};
let exe_dir = exe_path.parent()?;
let exe_name = exe_path.file_name()?;
// Look for pyvenv.cfg in parent directory (typical venv layout: venv/bin/python)
let venv_dir = exe_dir.parent()?;
let pyvenv_cfg = venv_dir.join("pyvenv.cfg");
if !pyvenv_cfg.exists() {
return None;
}
// Parse pyvenv.cfg and extract home directory
let content = std::fs::read_to_string(&pyvenv_cfg).ok()?;
for line in content.lines() {
if let Some((key, value)) = line.split_once('=') {
let key = key.trim().to_lowercase();
let value = value.trim();
if key == "home" {
// First try to resolve symlinks (getpath.py line 373-377)
if let Ok(resolved) = std::fs::canonicalize(&exe_path)
&& resolved != exe_path
{
return Some(resolved.to_string_lossy().into_owned());
}
// Fallback: home_dir + executable_name (getpath.py line 381)
let base_exe = path::Path::new(value).join(exe_name);
return Some(base_exe.to_string_lossy().into_owned());
}
}
}
None
}
#[pyattr]
fn dont_write_bytecode(vm: &VirtualMachine) -> bool {
!vm.state.settings.write_bytecode
}
#[pyattr]
fn executable(vm: &VirtualMachine) -> PyObjectRef {
let ctx = &vm.ctx;
#[cfg(not(target_arch = "wasm32"))]
{
if let Some(exec_path) = env::args_os().next()
&& let Ok(path) = which::which(exec_path)
{
return ctx
.new_str(
path.into_os_string()
.into_string()
.unwrap_or_else(|p| p.to_string_lossy().into_owned()),
)
.into();
}
}
if let Some(exec_path) = env::args().next() {
let path = path::Path::new(&exec_path);
if !path.exists() {
return ctx.new_str(ascii!("")).into();
}
if path.is_absolute() {
return ctx.new_str(exec_path).into();
}
if let Ok(dir) = env::current_dir()
&& let Ok(dir) = dir.into_os_string().into_string()
{
return ctx
.new_str(format!(
"{}/{}",
dir,
exec_path.strip_prefix("./").unwrap_or(&exec_path)
))
.into();
}
}
ctx.none()
}
#[pyattr]
fn _git(vm: &VirtualMachine) -> PyTupleRef {
vm.new_tuple((
ascii!("RustPython"),
version::get_git_identifier(),
version::get_git_revision(),
))
}
#[pyattr]
fn implementation(vm: &VirtualMachine) -> PyRef<PyNamespace> {
const NAME: &str = "rustpython";
let cache_tag = format!("{NAME}-{}{}", version::MAJOR, version::MINOR);
let ctx = &vm.ctx;
py_namespace!(vm, {
"name" => ctx.new_str(NAME),
"cache_tag" => ctx.new_str(cache_tag),
"_multiarch" => ctx.new_str(MULTIARCH.to_owned()),
"version" => version_info(vm),
"hexversion" => ctx.new_int(version::VERSION_HEX),
})
}
#[pyattr]
const fn meta_path(_vm: &VirtualMachine) -> Vec<PyObjectRef> {
Vec::new()
}
#[pyattr]
fn orig_argv(vm: &VirtualMachine) -> Vec<PyObjectRef> {
env::args().map(|arg| vm.ctx.new_str(arg).into()).collect()
}
#[pyattr]
fn path(vm: &VirtualMachine) -> Vec<PyObjectRef> {
vm.state
.settings
.path_list
.iter()
.map(|path| vm.ctx.new_str(path.clone()).into())
.collect()
}
#[pyattr]
const fn path_hooks(_vm: &VirtualMachine) -> Vec<PyObjectRef> {
Vec::new()
}
#[pyattr]
fn path_importer_cache(vm: &VirtualMachine) -> PyDictRef {
vm.ctx.new_dict()
}
#[pyattr]
fn pycache_prefix(vm: &VirtualMachine) -> PyObjectRef {
vm.ctx.none()
}
#[pyattr]
fn version(_vm: &VirtualMachine) -> String {
version::get_version()
}
#[cfg(windows)]
#[pyattr]
fn winver(_vm: &VirtualMachine) -> String {
// Note: This is Python DLL version in CPython, but we arbitrary fill it for compatibility
version::get_winver_number()
}
#[pyattr]
fn _xoptions(vm: &VirtualMachine) -> PyDictRef {
let ctx = &vm.ctx;
let xopts = ctx.new_dict();
for (key, value) in &vm.state.settings.xoptions {
let value = value.as_ref().map_or_else(
|| ctx.new_bool(true).into(),
|s| ctx.new_str(s.clone()).into(),
);
xopts.set_item(&**key, value, vm).unwrap();
}
xopts
}
#[pyattr]
fn warnoptions(vm: &VirtualMachine) -> Vec<PyObjectRef> {
vm.state
.settings
.warnoptions
.iter()
.map(|s| vm.ctx.new_str(s.clone()).into())
.collect()
}
#[cfg(feature = "rustpython-compiler")]
#[pyfunction]
fn _baserepl(vm: &VirtualMachine) -> PyResult<()> {
// read stdin to end
let stdin = std::io::stdin();
let mut handle = stdin.lock();
let mut source = String::new();
handle
.read_to_string(&mut source)
.map_err(|e| vm.new_os_error(format!("Error reading from stdin: {e}")))?;
vm.compile(&source, crate::compiler::Mode::Single, "<stdin>".to_owned())
.map_err(|e| vm.new_os_error(format!("Error running stdin: {e}")))?;
Ok(())
}
#[pyfunction]
fn audit(_args: FuncArgs) {
// TODO: sys.audit implementation
}
#[pyfunction]
fn exit(code: OptionalArg<PyObjectRef>, vm: &VirtualMachine) -> PyResult {
let code = code.unwrap_or_none(vm);
Err(vm.new_exception(vm.ctx.exceptions.system_exit.to_owned(), vec![code]))
}
#[pyfunction]
fn exception(vm: &VirtualMachine) -> Option<PyBaseExceptionRef> {
vm.topmost_exception()
}
#[pyfunction(name = "__displayhook__")]
#[pyfunction]
fn displayhook(obj: PyObjectRef, vm: &VirtualMachine) -> PyResult<()> {
// Save non-None values as "_"
if vm.is_none(&obj) {
return Ok(());
}
// set to none to avoid recursion while printing
vm.builtins.set_attr("_", vm.ctx.none(), vm)?;
// TODO: catch encoding errors
let repr = obj.repr(vm)?.into();
builtins::print(PosArgs::new(vec![repr]), Default::default(), vm)?;
vm.builtins.set_attr("_", obj, vm)?;
Ok(())
}
#[pyfunction(name = "__excepthook__")]
#[pyfunction]
fn excepthook(
exc_type: PyObjectRef,
exc_val: PyObjectRef,
exc_tb: PyObjectRef,
vm: &VirtualMachine,
) -> PyResult<()> {
let stderr = super::get_stderr(vm)?;
// Try to normalize the exception. If it fails, print error to stderr like CPython
match vm.normalize_exception(exc_type.clone(), exc_val.clone(), exc_tb) {
Ok(exc) => vm.write_exception(&mut crate::py_io::PyWriter(stderr, vm), &exc),
Err(_) => {
// CPython prints error message to stderr instead of raising exception
let type_name = exc_val.class().name();
// TODO: fix error message
let msg = format!(
"TypeError: print_exception(): Exception expected for value, {type_name} found\n"
);
use crate::py_io::Write;
write!(&mut crate::py_io::PyWriter(stderr, vm), "{msg}")?;
Ok(())
}
}
}
#[pyfunction(name = "__breakpointhook__")]
#[pyfunction]
pub fn breakpointhook(args: FuncArgs, vm: &VirtualMachine) -> PyResult {
let env_var = std::env::var("PYTHONBREAKPOINT")
.and_then(|env_var| {
if env_var.is_empty() {
Err(VarError::NotPresent)
} else {
Ok(env_var)
}
})
.unwrap_or_else(|_| "pdb.set_trace".to_owned());
if env_var.eq("0") {
return Ok(vm.ctx.none());
};
let print_unimportable_module_warn = || {
warn(
vm.ctx.exceptions.runtime_warning,
format!("Ignoring unimportable $PYTHONBREAKPOINT: \"{env_var}\"",),
0,
vm,
)
.unwrap();
Ok(vm.ctx.none())
};
let last = match env_var.rsplit_once('.') {
Some((_, last)) => last,
None if !env_var.is_empty() => env_var.as_str(),
_ => return print_unimportable_module_warn(),
};
let (module_path, attr_name) = if last == env_var {
("builtins", env_var.as_str())
} else {
(&env_var[..(env_var.len() - last.len() - 1)], last)
};
let module = match vm.import(&vm.ctx.new_str(module_path), 0) {
Ok(module) => module,
Err(_) => {
return print_unimportable_module_warn();
}
};
match vm.get_attribute_opt(module, &vm.ctx.new_str(attr_name)) {
Ok(Some(hook)) => hook.as_ref().call(args, vm),
_ => print_unimportable_module_warn(),
}
}
#[pyfunction]
fn exc_info(vm: &VirtualMachine) -> (PyObjectRef, PyObjectRef, PyObjectRef) {
match vm.topmost_exception() {
Some(exception) => vm.split_exception(exception),
None => (vm.ctx.none(), vm.ctx.none(), vm.ctx.none()),
}
}
#[pyattr]
fn flags(vm: &VirtualMachine) -> PyTupleRef {
PyFlags::from_data(FlagsData::from_settings(&vm.state.settings), vm)
}
#[pyattr]
fn float_info(vm: &VirtualMachine) -> PyTupleRef {
PyFloatInfo::from_data(FloatInfoData::INFO, vm)
}
#[pyfunction]
const fn getdefaultencoding() -> &'static str {
crate::codecs::DEFAULT_ENCODING
}
#[pyfunction]
fn getrefcount(obj: PyObjectRef) -> usize {
obj.strong_count()
}
#[pyfunction]
fn getrecursionlimit(vm: &VirtualMachine) -> usize {
vm.recursion_limit.get()
}
#[derive(FromArgs)]
struct GetsizeofArgs {
obj: PyObjectRef,
#[pyarg(any, optional)]
default: Option<PyObjectRef>,
}
#[pyfunction]
fn getsizeof(args: GetsizeofArgs, vm: &VirtualMachine) -> PyResult {
let sizeof = || -> PyResult<usize> {
let res = vm.call_special_method(&args.obj, identifier!(vm, __sizeof__), ())?;
let res = res.try_index(vm)?.try_to_primitive::<usize>(vm)?;
Ok(res + std::mem::size_of::<PyObject>())
};
sizeof()
.map(|x| vm.ctx.new_int(x).into())
.or_else(|err| args.default.ok_or(err))
}
#[pyfunction]
fn getfilesystemencoding(vm: &VirtualMachine) -> PyStrRef {
vm.fs_encoding().to_owned()
}
#[pyfunction]
fn getfilesystemencodeerrors(vm: &VirtualMachine) -> PyStrRef {
vm.fs_encode_errors().to_owned()
}
#[pyfunction]
fn getprofile(vm: &VirtualMachine) -> PyObjectRef {
vm.profile_func.borrow().clone()
}
#[pyfunction]
fn _getframe(offset: OptionalArg<usize>, vm: &VirtualMachine) -> PyResult<FrameRef> {
let offset = offset.into_option().unwrap_or(0);
if offset > vm.frames.borrow().len() - 1 {
return Err(vm.new_value_error("call stack is not deep enough"));
}
let idx = vm.frames.borrow().len() - offset - 1;
let frame = &vm.frames.borrow()[idx];
Ok(frame.clone())
}
#[pyfunction]
fn _getframemodulename(depth: OptionalArg<usize>, vm: &VirtualMachine) -> PyResult {
let depth = depth.into_option().unwrap_or(0);
// Get the frame at the specified depth
if depth > vm.frames.borrow().len() - 1 {
return Ok(vm.ctx.none());
}
let idx = vm.frames.borrow().len() - depth - 1;
let frame = &vm.frames.borrow()[idx];
// If the frame has a function object, return its __module__ attribute
if let Some(func_obj) = &frame.func_obj {
match func_obj.get_attr(identifier!(vm, __module__), vm) {
Ok(module) => Ok(module),
Err(_) => {
// CPython clears the error and returns None
Ok(vm.ctx.none())
}
}
} else {
Ok(vm.ctx.none())
}
}
#[pyfunction]
fn gettrace(vm: &VirtualMachine) -> PyObjectRef {
vm.trace_func.borrow().clone()
}
#[cfg(windows)]
fn get_kernel32_version() -> std::io::Result<(u32, u32, u32)> {
use crate::common::windows::ToWideString;
unsafe {
// Create a wide string for "kernel32.dll"
let module_name: Vec<u16> = std::ffi::OsStr::new("kernel32.dll").to_wide_with_nul();
let h_kernel32 = GetModuleHandleW(module_name.as_ptr());
if h_kernel32.is_null() {
return Err(std::io::Error::last_os_error());
}
// Prepare a buffer for the module file path
let mut kernel32_path = [0u16; MAX_PATH as usize];
let len = GetModuleFileNameW(
h_kernel32,
kernel32_path.as_mut_ptr(),
kernel32_path.len() as u32,
);
if len == 0 {
return Err(std::io::Error::last_os_error());
}
// Get the size of the version information block
let ver_block_size =
GetFileVersionInfoSizeW(kernel32_path.as_ptr(), std::ptr::null_mut());
if ver_block_size == 0 {
return Err(std::io::Error::last_os_error());
}
// Allocate a buffer to hold the version information
let mut ver_block = vec![0u8; ver_block_size as usize];
if GetFileVersionInfoW(
kernel32_path.as_ptr(),
0,
ver_block_size,
ver_block.as_mut_ptr() as *mut _,
) == 0
{
return Err(std::io::Error::last_os_error());
}
// Prepare an empty sub-block string (L"") as required by VerQueryValueW
let sub_block: Vec<u16> = std::ffi::OsStr::new("").to_wide_with_nul();
let mut ffi_ptr: *mut VS_FIXEDFILEINFO = std::ptr::null_mut();
let mut ffi_len: u32 = 0;
if VerQueryValueW(
ver_block.as_ptr() as *const _,
sub_block.as_ptr(),
&mut ffi_ptr as *mut *mut VS_FIXEDFILEINFO as *mut *mut _,
&mut ffi_len as *mut u32,
) == 0
|| ffi_ptr.is_null()
{
return Err(std::io::Error::last_os_error());
}
// Extract the version numbers from the VS_FIXEDFILEINFO structure.
let ffi = *ffi_ptr;
let real_major = (ffi.dwProductVersionMS >> 16) & 0xFFFF;
let real_minor = ffi.dwProductVersionMS & 0xFFFF;
let real_build = (ffi.dwProductVersionLS >> 16) & 0xFFFF;
Ok((real_major, real_minor, real_build))
}
}
#[cfg(windows)]
#[pyfunction]
fn getwindowsversion(vm: &VirtualMachine) -> PyResult<crate::builtins::tuple::PyTupleRef> {
use std::ffi::OsString;
use std::os::windows::ffi::OsStringExt;
use windows_sys::Win32::System::SystemInformation::{
GetVersionExW, OSVERSIONINFOEXW, OSVERSIONINFOW,
};
let mut version: OSVERSIONINFOEXW = unsafe { std::mem::zeroed() };
version.dwOSVersionInfoSize = std::mem::size_of::<OSVERSIONINFOEXW>() as u32;
let result = unsafe {
let os_vi = &mut version as *mut OSVERSIONINFOEXW as *mut OSVERSIONINFOW;
// SAFETY: GetVersionExW accepts a pointer of OSVERSIONINFOW, but windows-sys crate's type currently doesn't allow to do so.
// https://docs.microsoft.com/en-us/windows/win32/api/sysinfoapi/nf-sysinfoapi-getversionexw#parameters
GetVersionExW(os_vi)
};
if result == 0 {
return Err(vm.new_os_error("failed to get windows version".to_owned()));
}
let service_pack = {
let (last, _) = version
.szCSDVersion
.iter()
.take_while(|&x| x != &0)
.enumerate()
.last()
.unwrap_or((0, &0));
let sp = OsString::from_wide(&version.szCSDVersion[..last]);
sp.into_string()
.map_err(|_| vm.new_os_error("service pack is not ASCII".to_owned()))?
};
let real_version = get_kernel32_version().map_err(|e| vm.new_os_error(e.to_string()))?;
let winver = WindowsVersionData {
major: real_version.0,
minor: real_version.1,
build: real_version.2,
platform: version.dwPlatformId,
service_pack,
service_pack_major: version.wServicePackMajor,
service_pack_minor: version.wServicePackMinor,
suite_mask: version.wSuiteMask,
product_type: version.wProductType,
platform_version: (real_version.0, real_version.1, real_version.2), // TODO Provide accurate version, like CPython impl
};
Ok(PyWindowsVersion::from_data(winver, vm))
}
fn _unraisablehook(unraisable: UnraisableHookArgsData, vm: &VirtualMachine) -> PyResult<()> {
use super::PyStderr;
let stderr = PyStderr(vm);
if !vm.is_none(&unraisable.object) {
if !vm.is_none(&unraisable.err_msg) {
write!(stderr, "{}: ", unraisable.err_msg.str(vm)?);
} else {
write!(stderr, "Exception ignored in: ");
}
// exception in del will be ignored but printed
let repr = &unraisable.object.repr(vm);
let str = match repr {
Ok(v) => v.to_string(),
Err(_) => format!(
"<object {} repr() failed>",
unraisable.object.class().name()
),
};
writeln!(stderr, "{str}");
} else if !vm.is_none(&unraisable.err_msg) {
writeln!(stderr, "{}:", unraisable.err_msg.str(vm)?);
}
// Print traceback (using actual exc_traceback, not current stack)
if !vm.is_none(&unraisable.exc_traceback) {
let tb_module = vm.import("traceback", 0)?;
let print_tb = tb_module.get_attr("print_tb", vm)?;
let stderr_obj = super::get_stderr(vm)?;
let kwargs: KwArgs = [("file".to_string(), stderr_obj)].into_iter().collect();
let _ = print_tb.call(
FuncArgs::new(vec![unraisable.exc_traceback.clone()], kwargs),
vm,
);
}
// Check exc_type
if vm.is_none(unraisable.exc_type.as_object()) {
return Ok(());
}
assert!(
unraisable
.exc_type
.fast_issubclass(vm.ctx.exceptions.base_exception_type)
);
// Print module name (if not builtins or __main__)
let module_name = unraisable.exc_type.__module__(vm);
if let Ok(module_str) = module_name.downcast::<PyStr>() {
let module = module_str.as_str();
if module != "builtins" && module != "__main__" {
write!(stderr, "{}.", module);
}
} else {
write!(stderr, "<unknown>.");
}
// Print qualname
let qualname = unraisable.exc_type.__qualname__(vm);
if let Ok(qualname_str) = qualname.downcast::<PyStr>() {
write!(stderr, "{}", qualname_str.as_str());
} else {
write!(stderr, "{}", unraisable.exc_type.name());
}
// Print exception value
if !vm.is_none(&unraisable.exc_value) {
write!(stderr, ": ");
if let Ok(str) = unraisable.exc_value.str(vm) {
write!(stderr, "{}", str.to_str().unwrap_or("<str with surrogate>"));
} else {
write!(stderr, "<exception str() failed>");
}
}
writeln!(stderr);
// Flush stderr
if let Ok(stderr_obj) = super::get_stderr(vm)
&& let Ok(flush) = stderr_obj.get_attr("flush", vm)
{
let _ = flush.call((), vm);
}
Ok(())
}
#[pyattr]
#[pyfunction(name = "__unraisablehook__")]
fn unraisablehook(unraisable: UnraisableHookArgsData, vm: &VirtualMachine) {
if let Err(e) = _unraisablehook(unraisable, vm) {
let stderr = super::PyStderr(vm);
writeln!(
stderr,
"{}",
e.as_object()
.repr(vm)
.unwrap_or_else(|_| vm.ctx.empty_str.to_owned())
);
}
}
#[pyattr]
fn hash_info(vm: &VirtualMachine) -> PyTupleRef {
PyHashInfo::from_data(HashInfoData::INFO, vm)
}
#[pyfunction]
fn intern(s: PyRefExact<PyStr>, vm: &VirtualMachine) -> PyRef<PyStr> {
vm.ctx.intern_str(s).to_owned()
}
#[pyattr]
fn int_info(vm: &VirtualMachine) -> PyTupleRef {
PyIntInfo::from_data(IntInfoData::INFO, vm)
}
#[pyfunction]
fn get_int_max_str_digits(vm: &VirtualMachine) -> usize {
vm.state.int_max_str_digits.load()
}
#[pyfunction]
fn set_int_max_str_digits(maxdigits: usize, vm: &VirtualMachine) -> PyResult<()> {
let threshold = IntInfoData::INFO.str_digits_check_threshold;
if maxdigits == 0 || maxdigits >= threshold {
vm.state.int_max_str_digits.store(maxdigits);
Ok(())
} else {
let error = format!("maxdigits must be 0 or larger than {threshold:?}");
Err(vm.new_value_error(error))
}
}
#[pyfunction]
fn is_finalizing(vm: &VirtualMachine) -> bool {
vm.state.finalizing.load(Ordering::Acquire)
}
#[pyfunction]
fn setprofile(profilefunc: PyObjectRef, vm: &VirtualMachine) {
vm.profile_func.replace(profilefunc);
update_use_tracing(vm);
}
#[pyfunction]
fn setrecursionlimit(recursion_limit: i32, vm: &VirtualMachine) -> PyResult<()> {
let recursion_limit = recursion_limit
.to_usize()
.filter(|&u| u >= 1)
.ok_or_else(|| {
vm.new_value_error("recursion limit must be greater than or equal to one")
})?;
let recursion_depth = vm.current_recursion_depth();
if recursion_limit > recursion_depth {
vm.recursion_limit.set(recursion_limit);
Ok(())
} else {
Err(vm.new_recursion_error(format!(
"cannot set the recursion limit to {recursion_limit} at the recursion depth {recursion_depth}: the limit is too low"
)))
}
}
#[pyfunction]
fn settrace(tracefunc: PyObjectRef, vm: &VirtualMachine) {
vm.trace_func.replace(tracefunc);
update_use_tracing(vm);
}
#[cfg(feature = "threading")]
#[pyattr]
fn thread_info(vm: &VirtualMachine) -> PyTupleRef {
PyThreadInfo::from_data(ThreadInfoData::INFO, vm)
}
#[pyattr]
fn version_info(vm: &VirtualMachine) -> PyTupleRef {
PyVersionInfo::from_data(VersionInfoData::VERSION, vm)
}
fn update_use_tracing(vm: &VirtualMachine) {
let trace_is_none = vm.is_none(&vm.trace_func.borrow());
let profile_is_none = vm.is_none(&vm.profile_func.borrow());
let tracing = !(trace_is_none && profile_is_none);
vm.use_tracing.set(tracing);
}
#[pyfunction]
fn set_coroutine_origin_tracking_depth(depth: i32, vm: &VirtualMachine) -> PyResult<()> {
if depth < 0 {
return Err(vm.new_value_error("depth must be >= 0"));
}
crate::vm::thread::COROUTINE_ORIGIN_TRACKING_DEPTH.set(depth as u32);
Ok(())
}
#[pyfunction]
fn get_coroutine_origin_tracking_depth() -> i32 {
crate::vm::thread::COROUTINE_ORIGIN_TRACKING_DEPTH.get() as i32
}
#[pyfunction]
fn getswitchinterval(vm: &VirtualMachine) -> f64 {
// Return the stored switch interval
vm.state.switch_interval.load()
}
// TODO: vm.state.switch_interval is currently not used anywhere in the VM
#[pyfunction]
fn setswitchinterval(interval: f64, vm: &VirtualMachine) -> PyResult<()> {
// Validate the interval parameter like CPython does
if interval <= 0.0 {
return Err(vm.new_value_error("switch interval must be strictly positive"));
}
// Store the switch interval value
vm.state.switch_interval.store(interval);
Ok(())
}
#[derive(FromArgs)]
struct SetAsyncgenHooksArgs {
#[pyarg(any, optional)]
firstiter: OptionalArg<Option<PyObjectRef>>,
#[pyarg(any, optional)]
finalizer: OptionalArg<Option<PyObjectRef>>,
}
#[pyfunction]
fn set_asyncgen_hooks(args: SetAsyncgenHooksArgs, vm: &VirtualMachine) -> PyResult<()> {
if let Some(Some(finalizer)) = args.finalizer.as_option()
&& !finalizer.is_callable()
{
return Err(vm.new_type_error(format!(
"callable finalizer expected, got {:.50}",
finalizer.class().name()
)));
}
if let Some(Some(firstiter)) = args.firstiter.as_option()
&& !firstiter.is_callable()
{
return Err(vm.new_type_error(format!(
"callable firstiter expected, got {:.50}",
firstiter.class().name()
)));
}
if let Some(finalizer) = args.finalizer.into_option() {
crate::vm::thread::ASYNC_GEN_FINALIZER.set(finalizer);
}
if let Some(firstiter) = args.firstiter.into_option() {
crate::vm::thread::ASYNC_GEN_FIRSTITER.set(firstiter);
}
Ok(())
}
#[pystruct_sequence_data]
pub(super) struct AsyncgenHooksData {
firstiter: PyObjectRef,
finalizer: PyObjectRef,
}
#[pyattr]
#[pystruct_sequence(name = "asyncgen_hooks", data = "AsyncgenHooksData")]
pub(super) struct PyAsyncgenHooks;
#[pyclass(with(PyStructSequence))]
impl PyAsyncgenHooks {}
#[pyfunction]
fn get_asyncgen_hooks(vm: &VirtualMachine) -> AsyncgenHooksData {
AsyncgenHooksData {