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use std::fmt;
use std::ops::Deref;
use super::objtype::PyClassRef;
use crate::bytecode;
use crate::pyobject::{IdProtocol, PyContext, PyObjectRef, PyRef, PyResult, PyValue};
use crate::vm::VirtualMachine;
pub type PyCodeRef = PyRef<PyCode>;
pub struct PyCode {
pub code: bytecode::CodeObject,
}
impl Deref for PyCode {
type Target = bytecode::CodeObject;
fn deref(&self) -> &Self::Target {
&self.code
}
}
impl PyCode {
pub fn new(code: bytecode::CodeObject) -> PyCode {
PyCode { code }
}
}
impl fmt::Debug for PyCode {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
write!(f, "code: {:?}", self.code)
}
}
impl PyValue for PyCode {
fn class(vm: &VirtualMachine) -> PyClassRef {
vm.ctx.code_type()
}
}
impl PyCodeRef {
#[allow(clippy::new_ret_no_self)]
fn new(_cls: PyClassRef, vm: &VirtualMachine) -> PyResult {
Err(vm.new_type_error("Cannot directly create code object".to_owned()))
}
fn repr(self) -> String {
let code = &self.code;
format!(
"<code object {} at 0x{:x} file {:?}, line {}>",
code.obj_name,
self.get_id(),
code.source_path,
code.first_line_number
)
}
fn co_argcount(self) -> usize {
self.code.arg_names.len()
}
fn co_filename(self) -> String {
self.code.source_path.clone()
}
fn co_firstlineno(self) -> usize {
self.code.first_line_number
}
fn co_kwonlyargcount(self) -> usize {
self.code.kwonlyarg_names.len()
}
fn co_consts(self, vm: &VirtualMachine) -> PyObjectRef {
let consts = self
.code
.get_constants()
.map(|x| vm.ctx.unwrap_constant(x))
.collect();
vm.ctx.new_tuple(consts)
}
fn co_name(self) -> String {
self.code.obj_name.clone()
}
fn co_flags(self) -> u8 {
self.code.flags.bits()
}
}
pub fn init(ctx: &PyContext) {
extend_class!(ctx, &ctx.types.code_type, {
(slot new) => PyCodeRef::new,
"__repr__" => ctx.new_method(PyCodeRef::repr),
"co_argcount" => ctx.new_readonly_getset("co_argcount", PyCodeRef::co_argcount),
"co_consts" => ctx.new_readonly_getset("co_consts", PyCodeRef::co_consts),
"co_filename" => ctx.new_readonly_getset("co_filename", PyCodeRef::co_filename),
"co_firstlineno" => ctx.new_readonly_getset("co_firstlineno", PyCodeRef::co_firstlineno),
"co_kwonlyargcount" => ctx.new_readonly_getset("co_kwonlyargcount", PyCodeRef::co_kwonlyargcount),
"co_name" => ctx.new_readonly_getset("co_name", PyCodeRef::co_name),
"co_flags" => ctx.new_readonly_getset("co_flags", PyCodeRef::co_flags),
});
}