54 lines
1.2 KiB
Rust
54 lines
1.2 KiB
Rust
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use crate::obj::prelude::*;
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use std::{any::Any, sync::LazyLock};
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pub type IntValue = i64;
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static INT_ATTRS: LazyLock<AttrsPtr> = LazyLock::new(|| {
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attrs_ptr! {
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//
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"__str__" => builtin_fun_ptr!("__str__", |_vm, args, _state| {
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if args.len() != 1 {
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todo!("Throw exception: arity error");
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}
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let arg_any = &args[0].as_any();
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let obj = arg_any.downcast_ref::<Int>().expect("Int.__str__ did not receive Int?");
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BuiltinFunResult::Return(Some(ObjPtr::new(Str::new(obj.value().to_string()))))
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}),
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}
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});
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#[derive(Debug, Clone)]
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pub struct Int {
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attrs: AttrsPtr,
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value: IntValue,
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}
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impl Int {
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pub fn new(value: IntValue) -> Self {
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let attrs = AttrsPtr::clone(&INT_ATTRS);
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// TODO intern
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Int { attrs, value }
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}
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pub fn value(&self) -> IntValue {
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self.value
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}
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}
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impl Obj for Int {
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fn attrs(&self) -> AttrsPtr {
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AttrsPtr::clone(&self.attrs)
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}
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fn as_any(&self) -> &(dyn Any + 'static) {
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self
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}
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}
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impl ToString for Int {
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fn to_string(&self) -> String {
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format!("{}", self.value())
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}
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}
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